IMATRON INC
S-3, 1995-10-02
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
Previous: BURLINGTON COAT FACTORY WAREHOUSE CORP, DEF 14A, 1995-10-02
Next: STAFF BUILDERS INC /DE/, DEFA14A, 1995-10-02



   As filed with the Securities and Exchange Commission on October 2, 1995
                         --Registration No. 33-________
   ==========================================================================

                                    FORM S-3

                       SECURITIES AND EXCHANGE COMMISSION

            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                                  IMATRON INC.
                (Exact name of issuer specified in its charter)

               New Jersey                        94-2880078
        (State of incorporation)    (I.R.S. Employer Identification No.)

                              --------------------

                           389 Oyster Point Boulevard
                         South San Francisco, CA 94080
                                 (415) 583-9664
               (Address, including zip code and telephone number,
       including area code, of registrant's principal executive offices)

                              --------------------

                                 S. Lewis Meyer
                     President and Chief Executive Officer
                                  Imatron Inc.
                           389 Oyster Point Boulevard
                         South San Francisco, CA 94080
                                 (415) 583-9964
            (Name, address including zip code, and telephone number,
                   including area code, of agent for service)

                                   Copies to:

                              Roger S. Mertz, Esq.
                               Severson & Werson
                       One Embarcadero Center, 25th Floor
                        San Francisco, California 94111
                    ----------------------------------------

        Approximate date of commencement of proposed sale to the public:
    As soon as possible after this Registration Statement becomes effective.

                               -----------------

<PAGE>

     If the only  securities  being  registered  on this Form are being  offered
pursuant to dividend or interest  reinvestment plans, please check the following
box: ( )

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, please check the following box: ( X )

                        CALCULATION OF REGISTRATION FEE
                 ==============================================

Title of each                       Proposed         Proposed
class of          Amount            maximum          maximum         Amount of
securities to     to be             offering price   aggregate      registration
be registered     registered        per unit         offering           fee
                                                     price

Common            126,488
Stock             Shares(1)         $2.34(2)         $  295,982

Common            100,000
Stock             Shares(3)         $1.00(4)         $  100,000

Common            1,325,000
Stock             Shares(5)         $1.50(4)         $1,987,500

Total             1,551,488                          $2,383,482     $822

                 ==============================================

- --------------
(1)      Represents shares currently issued and outstanding to a consultant for 
         professional services.

(2)      Estimated   pursuant  to  Rule  457(c)  solely  for   determination  of
         registration  fee,  based on the  average of the high and low prices on
         September 25, 1995.

(3)      Issuable upon the exercise of options expiring November 15, 1999 to 
         purchase shares of Common Stock.

(4)      Determined pursuant to Rule 457(g).

(5)      Issuable upon the exercise of Warrants expiring December 31, 1996 to 
         purchase shares of Common Stock.

                                       ii

<PAGE>

The Registrant hereby amends this Registration Statement on such date or date(s)
as may be necessary to delay its effective date until the Registrant  shall file
a further amendment which specifically  states that this Registration  Statement
shall  thereafter  become  effective  in  accordance  with  Section  8(a) of the
Securities  Act of  1933  or  until  the  Registration  Statement  shall  become
effective on such date as the  Commission  acting  pursuant to said Section 8(a)
may determine.

                                      iii

<PAGE>

                                  IMATRON INC.
                             CROSS REFERENCE SHEET
                             ---------------------


Item Number and Headings in
Form S-3 Registration Statement Caption in Prospectus


1.       Forepart of the Registration       PLAN OF DISTRIBUTION
         Statement and Outside Front        FACING PAGE; OUTSIDE FRONT
         Cover Page of Prospectus.....      COVER PAGE OF PROSPECTUS

2.       Inside Front and Outside Back      AVAILABLE INFORMATION;
         Cover Pages of Prospectus....      INCORPORATION OF CERTAIN
                                            DOCUMENTS BY REFERENCE TABLE
                                            OF CONTENTS

3.       Summary Information, Certain
         Factors and Ratio of Earnings to
         Fixed Charges...................   THE COMPANY, RISK FACTORS

4.       Use of Proceeds.................   USE OF PROCEEDS

5.       Determination of Offering Price    OFFERING PRICE

6.       Dilution.......................    NOT APPLICABLE

7.       Selling Security Holders.......    SELLING SHAREHOLDERS

8.       Plan of Distribution...........    PLAN OF DISTRIBUTION

9.       Description of Securities
         to be Registered...............    NOT APPLICABLE

10.      Interests of Named
         Experts and Counsel............    NOT APPLICABLE

11.      Material Changes...............    NOT APPLICABLE

12.      Incorporation of Certain           INCORPORATION OF CERTAIN
         Information by Reference.......    DOCUMENTS BY REFERENCE

13.      Disclosure of Commission.......
         Position on Indemnification for
         Securities Act Liabilities.....    NOT APPLICABLE


                                       iv

<PAGE>

                                   PROSPECTUS

                                1,551,488 Shares

                                  IMATRON INC.

                           Common Stock No Par Value
                              --------------------

     This  Prospectus  relates to the sale of up to  1,551,488  shares of Common
Stock,  no par value,  of Imatron Inc. (the  "Company") by  shareholders  of the
Company (the "Selling  Shareholders").  A total of 126,488  shares are currently
issued and  outstanding  ("Outstanding  Shares");  a total of 100,000 shares are
issuable upon conversion of outstanding options  ("Options")  ("Option Shares");
and a total of 1,325,000  shares are issuable  upon the exercise of  outstanding
Warrants ("Warrants") (the "Warrant Shares"). All of the Outstanding Shares, the
Options and the Warrants  were  previously  issued by the Company to the Selling
Shareholders in private transactions.  The Warrant Shares, the Option Shares and
the Outstanding  Shares are  collectively  referred to in this Prospectus as the
"Shares".  The Selling  Shareholders intend to sell the Shares from time to time
in open market and/or private sales, or by any other appropriate method.

     The Company will receive  proceeds upon the exercise of the Options  and/or
the  Warrants  by the  Selling  Shareholders,  but will not  receive  any of the
proceeds from the sale of the Shares.  The Company has agreed to bear all of the
expenses in connection with the registration (but not the sale) of the Shares.

                              --------------------

      THESE SECURITIES INVOLVE A HIGH DEGREE OF RISK. SEE "RISK FACTORS."

                              --------------------

         THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
           SECURITIES AND EXCHANGE COMMISSION NOR HAS THE COMMISSION
            PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
           ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.






               The Date of this Prospectus is October 2, 1995

<PAGE>

                                 PROCEEDS TABLE
                                 --------------


                             Price to      Solicitation      Proceeds to Issuer
                            Public (1)         Fee          or Other Persons (2)
                            ----------     ------------     --------------------

Common Stock

         1999 Options         $ 1.00           $-0-             $  100,000

         1996 Warrants
         Per Share            $ 1.50           $-0-             $1,987,500


(1)      The Options to purchase 100,000 shares are exercisable through November
         15,  1999 at a price of $1.00  per  share.  The  Warrants  to  purchase
         1,325,000  shares are exercisable  through December 31, 1996 at a price
         of $1.50 per share.

(2)      All  proceeds  realized  from  the  exercise of the Options  and/or the
         Warrants,  if any,  will go to the Company.




                               TABLE OF CONTENTS
                               -----------------


                  AVAILABLE INFORMATION

                  INCORPORATION OF CERTAIN
                  DOCUMENTS BY REFERENCE

                  THE COMPANY

                  RISK FACTORS

                  USE OF PROCEEDS

                  OFFERING PRICE

                  SELLING SHAREHOLDERS

                  PLAN OF DISTRIBUTION

                  EXPERTS

                  LEGAL OPINION

<PAGE>

                             AVAILABLE INFORMATION

     Imatron Inc.  ("Imatron" or the "Company") is subject to the  informational
requirements  of the  Securities  and  Exchange  Act of 1934,  as  amended  (the
"Exchange Act"), and, in accordance therewith,  files reports,  proxy statements
and  other  information  with  the  Securities  and  Exchange   Commission  (the
"Commission"). Such reports, proxy statements and other information filed by the
Company with the  Commission can be inspected and copied at Room 1024, 450 Fifth
Street,  N.W.,  Washington,  D.C.  20549,  and at the  Regional  Offices  of the
Commission at Room 1204,  Everett McKinley Dirksen Building,  219 South Dearborn
Street, Chicago,  Illinois 60604; and Room 1102, 26 Federal Plaza, New York, New
York 10007.  Copies of such material can be obtained  from the Public  Reference
Section of the Commission, at 450 Fifth Street, N.W., Washington, D.C. 20549, at
prescribed rates.  Shares of the Company's Common Stock are traded on the NASDAQ
National Market System.  Information concerning the Company may also be obtained
by contacting NASDAQ/NMS.

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The Company's  Annual  Report on Form 10-K for the year ended  December 31,
1994,  filed April 11, 1995 (File No. 0-12405) and all amendments  thereto;  the
Company's  definitive  Proxy  Statement  filed  pursuant  to  Section  14 of the
Exchange Act in connection with the annual meeting of shareholders  held on June
2, 1995, filed May 1, 1995; the Company's Quarterly Reports on Form 10-Q for the
periods  ending  March 31 and June 30, 1995 filed on May 12, 1995 and August 14,
1995, respectively;  and the description of the Company's Common Stock contained
in a  registration  statement  filed  under  the  Exchange  Act,  including  any
amendment  or report  filed for the purpose of updating  such  description,  are
hereby  incorporated by reference into this  Prospectus.  All documents filed by
the Company with the Commission  pursuant to Sections 13(a),  13(c), 14 or 15(d)
of the  Exchange  Act  after  the  date  of this  Prospectus  and  prior  to the
termination  of the offering of Common Stock shall be deemed to be  incorporated
by  reference  into this  Prospectus  and to be a part  hereof  from the date of
filing of such  documents,  except the Board  Compensation  Committee  Report on
Executive Compensation and the Performance Graph included in the Proxy Statement
pursuant to Item 402(k) and (l) of Regulation S-K. Any statement  contained in a
document  incorporated  by  reference  herein  shall be deemed to be modified or
superseded  for  purposes  of this  Prospectus  to the extent  that a  statement
contained herein or in any other subsequently filed document which also is or is
deemed to be  incorporated  by  reference  herein  modifies or  supersedes  such
statement.  Any statement so modified or superseded shall not be deemed,  except
as so modified or  superseded,  to  constitute  a part of this  Prospectus.  The
Company will provide  without  charge to each person to whom this  Prospectus is
delivered, upon written or oral request of such person, a copy of any and all of
the information  that has been  incorporated  by reference in this  Registration
Statement  filed with the Commission  under the Exchange Act with respect to the
Common Stock  offered by the  Prospectus,  other than  certain  exhibits to such
documents.  Such  requests  should be directed to the Chief  Financial  Officer,
Imatron Inc., 389 Oyster Point Boulevard, South San Francisco, California 94080,
telephone no. (415) 583-9964.

<PAGE>

                                  THE COMPANY

     Imatron Inc. (the  "Company" or "Imatron")  is a  technology-based  company
principally engaged in the business of designing,  manufacturing and marketing a
high  performance  computed  tomography  (CT)  scanner that uses  Electron  Beam
Tomography  ("EBT") technology based on a scanning electron beam. The scanner is
used in large and mid-sized  hospitals and  free-standing  imaging clinics.  The
Company  provides  service,  parts and maintenance to hospitals and clinics that
operate its scanners.

     Using patented  electron beam technology,  the Imatron scanner captures and
displays  high-speed  cine (or motion picture) images of the heart and joints in
motion  as well as  high-speed  still  images  of the head and  body.  Imatron's
scanner can acquire  computed  tomography  ("CT")  images at a rate of 50 to 100
milliseconds  per slice in contrast to  conventional  CT scanners  that  require
between  1 and 10  seconds  per  slice.  Because  of its  high  speed  of  image
acquisition  derived from using an electron beam to generate x-rays, the Imatron
CT scanner can image moving body tissues such as the human heart in  stop-motion
(still image) or in real time (cine or motion  picture).  This high imaging rate
is achieved by the use of electronic scanning methods that require no mechanical
motion. Scanning is performed by an electron beam under computer control using a
software program that permits a wide variety of options.

     The Company is also  engaged in  performing  research and  development  for
others in the field of CT devices and  licensing its patents and know-how in the
fields  of  imaging  sciences.  The  Company  holds a 3%  interest  in  InVision
Technologies, Inc. ("InVision"),  (formerly Imatron Industrial Products, Inc.) a
corporation  organized  in 1990 to engage in the  development  of an  explosives
detection scanner and to which Imatron has licensed certain of its technology.

     The Company was  incorporated in New Jersey in February 1983. Its executive
offices  are  located  at 389  Oyster  Point  Boulevard,  South  San  Francisco,
California 94080 and its telephone number is (415) 583-9964.

     HeartScan  Imaging,  Inc.  ("HSI"),  incorporated in Delaware in 1993, is a
wholly-owned  subsidiary  of Imatron.  HSI operates a coronary  artery  scanning
(CAS) test facility and  corporate  demonstration  site in South San  Francisco,
California and is engaged in the business of developing other CAS clinics.

                                  RISK FACTORS

     The securities  offered hereby are speculative and involve a high degree of
risk.  Prospective  investors  may  lose  all or a  part  of  their  investment.
Consequently,  the  following  factors,  in  addition  to the other  information
contained in this Prospectus,  should be considered  carefully in evaluating the
Company and its business before purchasing the securities offered hereby:

         SHORT OPERATING  HISTORY;  LOSSES TO DATE.  Imatron was incorporated in
February  1983 and in March 1983 became the successor to Imatron  Associates,  a
limited  partnership  established  in  February  1981.  Imatron  operated  as  a
development-stage  company  until the fourth  quarter of 1984,  at which time it
recognized its initial sale of an ULTRAFAST CT(R) scanner.  Imatron has incurred
losses each quarter from  inception in February 1981 through  December 31, 1990.
Its first recorded  profitable  year was the year ended December 31, 1991 during

<PAGE>

which  a  $4,000,000   payment  for  the  licensing  of  technology  to  Siemens
Corporation  was received.  The Company  incurred net losses of  $2,871,000  and
$6,523,000 in the years ended December 31, 1993 and 1992, respectively. 1994 was
the Company's first year of profit from  operations.  There is no assurance that
Imatron can operate  profitably in the future.  In the past,  Imatron has funded
its losses primarily  through the sale of securities in two public offerings and
several  private  placements,  through the  exercise  of options  and  warrants,
through the 1991 license for medical  uses of its  electron-beam  technology  to
Siemens Corporation, and through revolving lines of credit.

     NEED FOR ADDITIONAL FINANCING.  To satisfy the Company's future capital and
operating  requirements,  additional  public or private  financing or profitable
operations will be required.  If future public or private  financing is required
by the Company,  holders of the Company's securities may experience dilution. If
such  financing  cannot be  obtained,  the  Company  may seek to sell or license
additional  portions of its technology,  to sell some or all of its other assets
or to merge with another company.

     MATERIAL  DEPENDENCE  UPON KEY  PERSONNEL.  The  Company  has been and will
continue  to be  materially  dependent  upon  the  technical  expertise  of  its
engineering  management  personnel.  The loss of a  significant  number  of such
personnel would have a materially adverse effect upon the Company's business and
future prospects. The Company does not maintain key-man life insurance.

     HIGH COST OF SCANNER.  The distributor list price of Imatron's ULTRAFAST CT
scanner is significantly higher than that of commercially available conventional
CT scanners and slightly  higher than the price of  "top-of-the-line"  scanners.
Such pricing may limit the market for Imatron's  product.  Potential  customers'
budgetary  limitations,  including those imposed by government  regulation,  may
often compel the purchase of lower cost, conventional CT scanners.

     LIMITED CLINICAL  DEMONSTRATION OF CERTAIN ADVANTAGES OF COMPANY'S SCANNER.
The Company's scanners have been used in a clinical  environment on humans since
April 1983.  Clinical use of a scanner  containing the new features of the C-150
model began in August 1992, and 17 C-150  scanners are currently  installed in a
clinical  setting.  The Company believes that market acceptance of the ULTRAFAST
CT  scanner   continues  to  depend  in  substantial   part  upon  the  clinical
demonstration  of  certain  asserted  technological  advantages  and  diagnostic
capabilities.  There is no assurance  that these  advantages  will result in the
development  of a  significant  market for the  ULTRAFAST CT that will allow the
Company to operate profitably.

     PRODUCT  LIABILITY  RISKS.  As  a  manufacturer  and  marketer  of  medical
diagnostic  equipment,  the Company is subject to  potential  product  liability
claims.  For example,  the  exposure of normal human tissue to x-rays,  which is
inherent  in the use of CT  scanners  for  diagnostic  imaging,  may  result  in
potential  injury to  patients,  thereby  subjecting  the  Company  to  possible
liability  therefor.  The Company presently maintains primary and excess product
liability  insurance with  aggregate  limits of $5,000,000  per  occurrence.  No
assurance can be given that the Company's product liability  insurance  coverage
will  continue  to be  available  or, if  available,  that it can be obtained in
sufficient amounts or at reasonable cost or that it will prove sufficient to pay
any claims that may arise.

<PAGE>

     RELIANCE  ON  PRODUCT  DEVELOPMENT.  Imatron  continually  seeks to develop
product enhancements and improve product  reliability.  Imatron's future success
may depend on its ability to complete  certain  product  enhancement and product
reliability projects currently in progress,  as well as on its continued ability
to develop new products or product enhancements in response to new products that
may be introduced  by other  companies.  There can be no assurance  that Imatron
will be able to  continue  to improve  product  reliability,  or  introduce  new
product models or product enhancements as required to remain competitive.

     RELIANCE ON PATENTS AND PROPRIETARY  TECHNOLOGY.  Imatron relies heavily on
proprietary  technology.  Imatron is the exclusive  sublicensee under one patent
expiring in 1999 held by the  University  of California  ("UC")  relating to the
general concept of the ULTRAFAST CT scanner.  Imatron holds the exclusive rights
under the patent  pursuant to a sublicensee  agreement  with Emersub,  Inc. (the
"Sublicensor"),  a wholly owned  subsidiary  of Emerson  Radio  Corp.,  a former
principal shareholder of Imatron. Pursuant to the sublicense agreement,  Imatron
is obligated to pay to the  Sublicensor a continuing  royalty of 2.125% of sales
of  products  utilizing  the  technology  (2.0%  of  which  would be paid by the
Sublicensor  to UC).  Loss by Imatron of its rights under the patent as a result
of  termination  of its  sublicense  from  the  Sublicensor,  or the  underlying
license, could have a material adverse effect upon Imatron's business and future
prospects. There are no present disputes with either UC or the Sublicensor.

     In addition  Imatron holds 20 U.S.  patents of its own and has filed 3 U.S.
patent   applications   covering  various  integral  elements  of  the  scanner,
including,  among others,  its X-ray  detector and its electron  beam  assembly.
Imatron has filed applications corresponding to several of the U.S. applications
in various European Patent Convention countries,  Canada and Japan. There can be
no  assurance  that any such  applications  will  result in the  issuance of any
patents to  Imatron.  Imatron's  patents and patent  applications  have not been
tested in litigation and no assurance can be given that patent  protection  will
be upheld or will be as extensive as claimed.  Furthermore,  no assurance can be
given as to Imatron's  ability to finance  litigation  against parties which may
infringe upon such patents or defend litigation against Imatron by parties which
may claim that Imatron's scanner infringes upon their patents.

     In the event some or all of the Company's  patent  applications  are denied
and/or  some or all of its  patents  are  held  invalid,  the  Company  would be
prevented from  precluding its competitors  from using the protected  technology
set forth in such patent applications or patents. Because the Company's products
involve confidential  proprietary  technology and know-how, the Company does not
believe such a loss of patent rights would have a material  adverse  effect upon
the Company.

     LIQUIDATION PREFERENCE. The Company has three holders of Series A Preferred
Stock (the "Series A Holders") who own 1,100,000 issued and outstanding Series A
Preferred shares. If the Company were to be liquidated (for example, following a
sale of all of the Company's assets or as a result of a bankruptcy  proceeding),
out of any proceeds  available for distribution to shareholders after payment of
creditors,  the Series A Holders  would be entitled  to receive its  liquidation
preference  of $2.00 per share of Series A  Preferred  Stock  plus  accrued  but
unpaid  dividends,  if any, prior to any distribution of proceeds to any holders
of Common Stock.

<PAGE>

     SALES  OF  SHARES  BY  MAJOR  STOCKHOLDER.  Approximately  6% of the  total
outstanding  shares of the Company's  Common Stock on an  as-converted  basis is
held  by  one  stockholder--FI.M.A.I.  Holding,  S.A.  ("FI.M.A.I.")  which  has
indicated in documents filed with the Securities and Exchange Commission that it
intends to sell  shares of the  Company's  Common  Stock in open  market  sales,
private  sales or  registered  public  offerings.  In addition,  an affiliate of
FI.M.A.I.  holds approximately another 6% of the total outstanding shares of the
Company's Common Stock on an as-converted  basis.  Sales of a substantial number
of shares of the Company's  Common Stock could adversely affect the market price
at which investors could sell the Shares.

     LIMITED OR SINGLE SOURCES OF SUPPLY. The Company  manufactures its scanners
at  its  South  San  Francisco,   California  facility.   To  date  the  typical
manufacturing cycle has required at least six months.  Based on inventory,  lead
time can be  significant  between the receipt of an order and the  shipment of a
scanner.

     Many of the  components  and  sub-assemblies  used in the scanner have been
developed  and  designed  by  Imatron  to  its  custom  specifications  and  are
obtainable  from limited or single sources of supply.  In view of the customized
nature of many of these  components and  sub-assemblies,  there may be long lead
times between  order and shipment of scanners.  Delays in delivery of components
and   sub-assemblies   could  adversely  affect  Imatron's  present  and  future
production  schedules.  The Company  has made and  continues  to make  inventory
investments to acquire long lead time components and  sub-assemblies to minimize
the impact of such delays.

     Disruption or termination of limited or sole sources of supply could have a
temporary  adverse effect on the Company's  ability to meet  scheduled  delivery
dates. In recent years, the Company has developed  alternative  sources for many
of its scanner  subcomponents  and continues its programs to qualify vendors for
the remaining critical parts.

     FOOD AND DRUG ADMINISTRATION AND OTHER GOVERNMENTAL REGULATION.  Amendments
to the Federal Food, Drug, and Cosmetic Act ("Amendments")  enacted in 1976, and
regulations  issued or  authorized  thereunder,  provide for  regulation  by the
Federal  Food and Drug  Administration  ("FDA") of the  marketing,  manufacture,
labeling,  packaging,  sale and distribution of "medical devices," including the
Company's scanner.  Among these regulations are requirements that medical device
manufacturers register their manufacturing facilities with the FDA, list devices
manufactured  by them,  file  various  reports and comply with  specified  "good
manufacturing   practice"  (GMP)  regulations.   The  FDA  enforces   additional
regulations  regarding the safety of equipment  utilizing  x-rays,  including CT
scanners. Various states also impose similar regulations.

     The Amendments also impose certain  requirements which must be met prior to
the initial marketing of certain medical devices  introduced into commerce after
May 28,  1976.  These  range  from a minimum  obligation  to wait 90 days  after
notification to the FDA before  introduction  of medical  devices  substantially
equivalent  to  devices  on the  market  prior  to May 28,  1976,  to a  maximum
obligation to comply with the potentially  expensive and time-consuming  process
of obtaining FDA authorization prior to the commercial  marketing of new medical
devices. The Company has received appropriate  clearances from the FDA to market
both the  C-100 XL and  C-150  ULTRAFAST  CT  scanner  and  believes  that it is
presently  in  substantial  compliance  with  the  GMP  requirements  and  other
regulatory issues promulgated by the FDA.

<PAGE>

     The FDA,  through  its Center for  Devices  and  Radiological  Health  (the
"Center"),  also  regulates  the safety and  efficacy of  radiological  devices.
Although  the  Company   believes  it  is  in  compliance  with  all  applicable
radiological health standards and regulations  promulgated by the Center,  there
can be no assurance  that the  ULTRAFAST CT scanner will continue to comply with
all such  standards  and  regulations  that may be  promulgated.  In any  event,
compliance with all such  requirements can be costly and time consuming,  with a
resultant  materially  adverse  effect  upon the  development  of the  Company's
business and its future profitability.

     FDA clearance to market does not guarantee or imply  reimbursement by third
party  payers such as  Medicare,  Medicaid,  Blue  Cross/Blue  Shield or private
health  insurers.  Medicare  and  Medicaid  reimburse  for  procedures  that are
generally accepted or that have been proven safe and effective.  The Health Care
Financing  Administration  ("HCFA"),  which oversees Medicare and Medicaid, will
not authorize  payment for procedures  which are considered to be  experimental.
HCFA has determined that diagnostic  examinations of the head and other parts of
the body performed by CT scanners are covered if the contractor who  administers
the local  Medicare  program finds that medical and  scientific  literature  and
opinion support the effective use of a scan for the particular condition.

     The Federal  government  and certain  states have enacted  cost-containment
measures  such as the  establishment  of maximum fee  standards in an attempt to
limit the extent and cost of  governmental  reimbursement  of allowable  medical
expenses under Medicare, Medicaid and similar governmental programs. A number of
states have adopted or are  considering the adoption of similar  measures.  Such
limitations  have led to a reduction in, and may further  limit funds  available
for the purchase of diagnostic  equipment  such as the Company's  scanner and in
the number of  diagnostic  imaging  procedures  performed in hospitals and other
medical institutions such as imaging clinics.

     Federal  legislation also requires states  participating in Federal medical
expense  reimbursement and funding programs to adopt requirements that hospitals
and other health care facilities,  such as imaging clinics, obtain a Certificate
of Need  ("CON") for major  capital  expenditures,  in the absence of which they
will be denied  reimbursement  for services and funding relating to such capital
expenditures.  A number of states have enacted CON  legislation  beyond  Federal
requirements,  such as requiring  private  physicians to obtain a CON for any CT
scanner,  regardless of cost. There can be no assurance that Imatron's potential
customers  will be able to  secure  CON's  or will  be  willing  to  pursue  the
application procedure.

     The health care industry is highly regulated. The implementation of certain
health care reforms  currently being  considered by the executive  branch of the
federal government may directly affect the Company's business. Both existing and
future  governmental  regulations  could  adversely  impact  the  market for the
Company's  ULTRAFAST  CT  scanner  and the  Company's  business.  The  Company's
operations  are also subject to  regulation  by other  federal,  state and local
governmental  entities  empowered to enforce pertinent statutes and regulations,
such as those  enforced  by the  Occupational  Safety and Health  Agency and the
Environmental Protection Agency. In some cases state or local regulations may be
stricter than  regulations  imposed by the federal  government.  The Company was
most recently  inspected by the State of California  Department of  Occupational
Safety and Health  Administration  in  November,  1993.  Minor  violations  were
identified by Cal/OSHA and were immediately corrected by the Company.  Follow up
inspection by Cal/OSHA yielded  satisfactory results without issuance of further
notice of violation.  The Company believes it is in substantial  compliance with
California regulations.

<PAGE>

     COMPETITION. The Company competes with a number of other diagnostic imaging
equipment  manufacturers.  The Company's  principal  competition is from current
manufacturers of conventional CT scanners,  including  General Electric Company,
Siemens Corporation,  Elscint, Picker International,  Inc., Philips Electronics,
B.V., and Toshiba Corporation.  Non-invasive  diagnostic imaging techniques such
as  ultrasound,   radioisotope  imaging,  digital  subtraction  angiography  and
magnetic  resonance  imaging are also partially  competitive  with the Company's
scanners,  particularly  in the cardiac  imaging  market.  Each of the companies
named above, as well as Diasonics, Inc. and ADAC Laboratories, markets equipment
using  one or more of these  techniques.  All of these  companies  have  greater
financial  resources  and larger and more  established  staffs than those of the
Company and their products are in most cases  substantially  less expensive than
the ULTRAFAST CT scanner.

     The  Company   believes   that  to  compete   successfully   against  these
competitors,  it must  demonstrate  that the  ULTRAFAST  CT  scanner  is both an
acceptable substitute for conventional CT scanners in scanning areas of the body
where motion is not a limitation and a valuable cardiac  diagnostic tool capable
of producing useful images of the heart.  Although the Company believes that the
ULTRAFAST  CT can  produce  images of a  quality  and  resolution  as good as or
superior to images  produced by state of the art  conventional  CT scanners,  it
lacks certain features that many competing premium scanners offer. These include
lack of a high-resolution  mode for imaging the temporal bones and inner ear and
lower functionality in software used for automatically  positioning the patient.
There is no certainty  that potential  purchasers of the Company's  scanner will
accept it without such features.

     Also, the Company believes that customers and potential  customers expect a
continuing  development  effort to improve the functionality and features of the
scanner.  The Company  continually  seeks to develop  product  enhancements  and
improve product reliability.  Imatron's future success may depend on its ability
to  complete  certain  product  enhancement  and  product  reliability  projects
currently  in  progress,  as well as on its  continued  ability to  develop  new
products  or  product  enhancements  in  response  to new  products  that may be
introduced by other  companies.  There can be no assurance  that Imatron will be
able to continue to improve product  reliability or introduce new product models
or product enhancements as required to remain competitive.

     Other  factors,  in addition  to those  described  above,  that a potential
purchaser  would consider in the decision to replace a  conventional  CT scanner
with  an  ULTRAFAST  CT  scanner  include  purchase  price,  patient  throughput
capacity,  anticipated  operating expenses,  estimated useful life and post-sale
customer  service and support.  The Company believes that its scanner and/or the
Company is competitive with respect to each of these factors.

     AGREEMENTS  WITH SIEMENS  CORPORATION.  In March 1991, the Company  entered
into several related  agreements  with Siemens  Corporation  ("Siemens").  These
agreements  and the  Company's  relationship  with  Siemens  were  substantially
restructured in March 1995. The Company  transferred all of its interest in five
patents subject to a  royalty-bearing  license back in exchange for cancellation
of a loan. The parties also substituted for the existing Development Agreement a
collaborative  research  agreement  pursuant to which they will jointly  conduct
research and development over a three-year period to improve the Company's C-150
product. Siemens was appointed the Company's exclusive distributor for the C-150
scanner in the United  States,  Canada,  Europe and India.  The Company  retains
exclusive  distribution rights in the rest of the world. The Company and Siemens
also granted reciprocal licenses to each other covering electron beam technology
relating to the design and manufacture of electron beam products.

<PAGE>

     RELIANCE ON DISTRIBUTORS.  A substantial  portion of the Company's sales of
its  scanners  is done  through  distributors.  There is no  assurance  that the
Company's distributors will actually meet their contractual minimums on a timely
basis.  Failure by the  distributors to meet their  obligations  could adversely
affect the Company.

     NO DIVIDENDS ON PREFERRED  AND COMMON  STOCK.  The Company has not paid any
dividends on its Preferred or Common Stock since  inception.  Even if its future
operations result in revenues and/or profitability,  as to which there can be no
assurance, there is no present anticipation that dividends will be paid. Rather,
the Company  expects that any future earnings will be applied toward the further
development of the Company's business.

                                USE OF PROCEEDS

     The Company will not receive any part of the proceeds  from the sale of the
Shares by the Selling Shareholders. As described under "Selling Shareholders", a
portion of the Shares will be acquired by the Selling Shareholders upon exercise
of options  and/or  warrants  previously  sold to them.  Upon the exercise of an
option or a warrant,  the Company will receive the applicable exercise price per
share from the Selling Shareholder.  The Company will use such proceeds, if any,
to increase working capital.

                                 OFFERING PRICE

     This  Prospectus may be used from time to time by the Selling  Shareholders
who offer the Common Stock  registered  hereby for sale.  The offering  price of
such Common Stock will be determined by the Selling Shareholder and may be based
on market  price  prevailing  at the time of sale,  at prices  relating  to such
prevailing  market  prices,  or at  negotiated  prices.  The market price of the
Company's Common Stock on the date of any proposed sale, as listed on the Nasdaq
National Market System, symbol "IMAT", is the most significant but not the only,
factor used to determine the offering price of the Shares.

                              SELLING SHAREHOLDERS

     The following provides certain information with respect to the Common Stock
beneficially  owned by the  Selling  Shareholders  who are  entitled to use this
Prospectus.  The information in the table is as of the date of this  Prospectus.
No Selling  Shareholder has had a material  relationship  with the Company other
than as a result of the ownership of Capital Stock.  The Common Stock offered by
this  Prospectus  may be offered  from time to time by the Selling  Shareholders
named below or their nominees:

<PAGE>

                  Shares                    Shares Available   Percent Owned
Name of Selling   Beneficially              for Sale Under     After Completion
Security holder   Owned          Warrants   this Prospectus    of the Offering
(1)               (2)            (3)                           (4)
- ---------------   ------------   --------   ----------------   ----------------


Sachio Okamura      126,488         -0-         126,488              *

Belmont Invest-     170,000       40,000         40,000              *
ments Ltd.(5)

First Marathon         -0-        40,000         40,000              *
Capital Corp.

Robert Friedland       -0-        40,000         40,000              *

Daniel Gillespie     50,000      100,000        100,000              *

Global Health          -0-       400,000        400,000              *
Sciences Fund

Jon and Linda          -0-        10,000         10,000              *
Gruber(6)

Malik M. Hasan         -0-       100,000        100,000              *

Lagunitas              -0-        65,000         65,000              *
Partners(7)

Chung H. Lew           -0-        95,000         95,000              *

Old Canada             -0-        40,000         40,000              *
Investments

Peripatetic            -0-       125,000        125,000              *
Investments Ltd.

Rosemary Reilly     160,000       40,000         40,000              *

Dr. Jarvis Ryals       -0-        80,000         80,000              *

John Tognetti          -0-        40,000         40,000              *

Paul Tutsch            -0-        70,000         70,000              *

Hermine                -0-        40,000         40,000              *
Wekerle(8)

Wall Street         100,000(9)      -0-         100,000              *
Consultants

All Selling         506,488    1,325,000      1,551,488              *
Shareholders as
a Group

<PAGE>

- --------------
* Less than 1%

(1)  None of the Selling  Shareholders has had any position,  office or material
     relationship with the Company within the last three years.

(2)  Includes  shares  owned  prior to this  offering  and the shares  which are
     issuable  upon the exercise of the options and Warrants held by the Selling
     Shareholders.  The number of shares  being  offered  hereby is shown in the
     "Shares Available for Sale Under this Prospectus"  column. See footnote (3)
     below.

(3)  Warrants for the purchase of the individual and aggregate  number of shares
     of Common Stock shown below.

(4)  Percentages are based upon the assumption that, upon the completion of this
     offering,  the respective Selling Security holder has sold the Common Stock
     listed  as  "Shares  Available  for Sale  Under  this  Prospectus"  and are
     computed  on the basis of full  dilution  and  55,170,465  shares of Common
     Stock issued and outstanding as of September 11, 1995.

(5)  Ricardo  Salomon  shares  power to dispose  of the  Shares  held by Belmont
     Investments Ltd.

(6)  Includes shares  beneficially owned  individually,  by spouse, by Lagunitas
     Partners and by clients of Gruber & McBaine,  a money  management  firm. J.
     Patterson McBaine,  President of Gruber & McBaine Capital Management shares
     power to vote and  dispose of 559,100 of the shares  beneficially  owned by
     Jon and Linda Gruber. Charles C. McGettigan and Myron A. Wick, III, general
     partners of Proactive Partners own 195,000 of the shares beneficially owned
     by Jon and Linda Gruber.

(7)  Lagunitas  Partners general partners Jon Gruber,  J. Patterson  McBaine and
     Gruber & McBaine Capital Management (Jon Gruber,  Chairman and J. Patterson
     McBaine,  President)  share the  power to vote and  dispose  of the  shares
     beneficially owned by Lagunitas Partners.

(8)  Michael  Wekerle  shares  power to dispose  of the  Shares  held by Hermine
     Wekerle.

(9)  Consists of options to purchase shares of common stock.

     The  Outstanding  Shares  were  acquired by Selling  Shareholders  from the
Company in partial payment of professional fees for certain consulting  services
provided in 1993  relating to the  negotiation  of  distribution  agreements  on
behalf of the Company. The Option Shares, issuable upon the exercise of options,
were acquired by Selling Shareholders from the Company in partial  consideration
of  professional  services  provided.  The  Warrant  Shares,  issuable  upon the
exercise of the  Warrants,  were acquired by the Selling  Shareholders  from the
Company in a private  placement  transaction.  The  Company  conducted a private
offering  of  Units  under  the  exemption  available  pursuant  to Rule  505 of
Regulation D and Section 4(2) (the "Private  Offering").  The offering commenced
in December, 1991 and concluded September 15, 1992. Each Unit consisted of three
shares of Imatron Common Stock,  one Imatron  Common Stock Purchase  Warrant and

<PAGE>

one share of InVision Technologies,  Inc. ("InVision") Series A Preferred Stock.
The Company currently holds approximately a 3% interest in InVision. None of the
Company's common shares or the InVision shares are included in this registration
statement.  Proceeds  from the  Private  Offering  were used to reduce  accounts
payable and notes payable and to purchase manufacturing  inventory necessary for
the  production  of an  advanced  version  of a  proprietary  scanner  which was
announced  for sale in April,  1992,  and to the  extent  not so used,  then for
general corporate purposes.

                              PLAN OF DISTRIBUTION

     The Company has been advised by the Selling  Shareholders  that the Selling
Shareholders  intend to sell their Shares from time to time in  transactions  on
the NASDAQ  National  Market System,  in private  negotiated  sales, or by other
appropriate  methods.  Such  sales  may be made to  purchasers  directly  by the
Selling Shareholders or through underwriters, dealers or agents, who may receive
compensation in the form of underwriting  discounts,  concessions or commissions
from the Selling  Shareholders and/or the purchasers of shares for whom they may
act as agents,  although the Selling Shareholders have not expressed any present
intention of using any underwriters in connection with the sale of the shares of
Common Stock covered by this Prospectus.

     The Company  will pay  substantially  all of the  expenses  incident to the
registration  of the Shares.  The Company will not pay any expenses  incident to
the  offering  and sale of the Common  Stock to the public,  including,  but not
limited to commissions and discounts of underwriters, dealers or agents.

                                    EXPERTS

     The financial statements of Imatron Inc. appearing in Imatron Inc.'s Annual
Report (Form 10-K) for the year ended  December  31, 1994,  have been audited by
Ernst & Young LLP,  independent  auditors,  as set forth in their report thereon
included therein and incorporated herein by reference. Such financial statements
are incorporated herein by reference in reliance upon such report given upon the
authority of such firm as experts in accounting and auditing.

                                 LEGAL OPINION

     The legality of the shares of Common Stock  offered will be passed upon for
the Company by  Severson & Werson,  One  Embarcadero  Center,  26th  Floor,  San
Francisco, CA 94111.

<PAGE>

     No  dealer,  salesman  or  any
other person has been authorized to
give any information or to make any
representation   not  contained  in               1,551,488 Shares
this  Prospectus in connection with
the offer made hereby.  If given or
made,    such     information    or
representation  must not be  relied
upon as having been  authorized  by
the Imatron  Inc.  This  Prospectus
does  not  constitute  an  offer to                 IMATRON INC.
sell or a solicitation  of an offer
to buy any  securities  other  than             No Par Common Stock
those  specifically  offered hereby
or an offer to buy to any person in
any  jurisdiction  in which such an
offer  or  solicitation   would  be
unlawful.  Neither the  delivery of
this  Prospectus  nor any sale made
hereunder     shall    under    any                 PROSPECTUS
circumstances       create      any
implication  that  the  information
contained  herein is  correct as of
any  time  subsequent  to the  date
hereof.



                                                 October 2,1995


<PAGE>

                PART II. INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.   OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     The  following  table sets  forth all  expenses  payable by the  Company in
connection  with  the  issuance  and  distribution  of the  Common  Stock  being
registered.(1)  All the amounts shown are estimates  except for the registration
fee.

          Registration fee.......................................$822

          Printing and engraving expenses........................$500

          Legal fees and expenses(2)...........................$5,000

          Accounting fees and expenses........................$ 2,500

                Total..........................................$8,822

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

     Article  IX of the  Bylaws of the  Company  sets  forth the extent to which
officers or directors of the Company may be indemnified  against any liabilities
which they may incur.  The general  effect of such Bylaw  provision  is that any
person made a party to an action,  suit or proceeding by reason of the fact that
he is or was a  director,  officer,  employee  or  agent of the  Company,  or of
another  corporation or other  enterprise which he served as such at the request
of the Company,  shall be indemnified by the Company against expenses (including
attorneys' fees),  judgments,  fines and amounts paid in settlement actually and
reasonably incurred by it in connection with such action, suit or proceeding, to
the full extent permitted under the laws of the State of New Jersey.

     The general effect of the indemnification  provisions  contained in Section
14A: 3-5 of the New Jersey General  Corporation Law is as follows: A director or
officer who, by reason of such  directorship or officership,  is involved in any
action,  suit or  preceding  (other  than an  action  by or in the  right of the
Company)  may  be  indemnified  by  the  Company  against  expenses   (including
attorneys' fees),  judgments,  fines and amounts paid in settlement actually and
reasonably incurred by him in connection with such action, suit or proceeding if
he acted in good faith and in a manner he  reasonably  believed  to be in or not
opposed to the best  interest of the Company,  and, with respect to any criminal
action or  proceeding,  had no reasonable  cause to believe that his conduct was
unlawful.  A  director  or  officer  who,  by  reason  of such  directorship  or
officership, is involved in any action or suit by or in the right of Company may
be indemnified  by the Company  against  expenses  (including  attorneys'  fees)
actually  and  reasonably  incurred  by him in  connection  with the  defense or
settlement  of such  action or suit if he acted in good faith and in a manner he
reasonably  believed  to be in or not  opposed  to  the  best  interests  of the
Company,  except  that no  indemnification  may be made in respect of any claim,
issue or  matter  as to which he shall  have  been  adjudged  to be  liable  for
negligence or misconduct in the  performance  of his duty to the Company  unless
and only to the extent that a court of  appropriate  jurisdiction  shall approve
such indemnification.
- ----------
     1 Including legal expenses associated with Blue Sky filings.

     2 Including legal expenses associated with Blue Sky filings.

<PAGE>

ITEM 16.  EXHIBITS

Exhibit   Description
No.

3.1       Certificate of Incorporation of the Company as amended as of March 31,
          1983.(3)

3.2       Certificate of Amendment of Certificate  of  Incorporation  filed with
          the New Jersey Secretary of State on June 7, 1988.(4)

3.3       Certificate of Amendment of Certificate  of  Incorporation  filed with
          the New Jersey Secretary of State on June 17, 1988.(5)

3.4       Certificate of Amendment of Certificate  of  Incorporation  filed with
          the New Jersey Secretary of State on July 26, 1988.(6)


3.5       Certificate  of Correction of  Certificate of Amendment of Certificate
          of  Incorporation  filed  with the New  Jersey  Secretary  of State on
          February 7, 1989.(7)

3.6       Certificate of Amendment of Certificate  of  Incorporation  filed with
          the New Jersey Secretary of State on March 29, 1990.(8)

3.7       Certificate of Amendment of Certificate  of  Incorporation  filed with
          the New Jersey Secretary of State on December 7, 1990.(9)
- ----------
     3 Filed as an exhibit to the Company's  Registration  Statement on Form S-1
       filed  with  the  Commission  on June 1,  1983  (File  No.  2-84146)  and
       incorporated herein by reference.

     4 Filed as an exhibit to the Company's  Registration  Statement on Form S-8
       filed with the  Commission  on February 3, 1989 (File No.  33-26833)  and
       incorporated herein by reference.

     5 Filed as an exhibit to the Company's Form 8 amending the Company's Annual
       Report on Form 10-K for the fiscal  year ended  December  31,  1988 filed
       with the Commission on May 2, 1989 and incorporated hereby by reference.

     6 Filed as an exhibit to the Company's  Registration  Statement on Form S-8
       filed with the  Commission  on February 3, 1989 (File No.  33-26833)  and
       incorporated herein by reference.

     7 Filed as an exhibit to the Company's Form 8 amending the Company's Annual
       Report on Form 10-K for the fiscal  year ended  December  31,  1988 filed
       with the Commission on Mary 2, 1989 and incorporated hereby by reference.

     8 Filed as an exhibit to the  Company's  Annual Report on Form 10-K for the
       fiscal year ended December 31, 1989 and incorporated herein by reference.

     9 Filed as an exhibit to the Company's  Registration  Statement on Form S-8
       filed  with  the  Commission  on May 6,  1991  (File  No.  33-40391)  and
       incorporated herein by reference.

<PAGE>

3.8       Bylaws, as amended as of April 30, 1992.(10)

4.1       Stock Option  Agreement  dated as of November  15, 1994,  entered into
          between Company and Wall Street Consultants  pursuant to which Options
          were issued to Selling Shareholders in partial payment for services.

4.2       Form of Warrant which expires  December 31, 1996,  issued to investors
          in connection with the Private Offering which concluded  September 15,
          1992.(11)

5.1       Opinion of Counsel as to the legality of securities being registered.

10.1      Form  of  Registration   Rights  Agreement  between  the  Company  and
          investors  in the  Private  Offering  which  concluded  September  15,
          1991.(12)

24.1      Consent of independent auditors.

24.2      Consent of Counsel. Reference is made to Exhibit 5.1.

25.1      Power of Attorney (contained in signature pages).
- ----------
    10 Filed as an exhibit to  Post-Effective  Amendment  No. 1 to the Company's
       Registration  Statement on Form S-3 filed with the  Commission  on May 5,
       1992 (File No. 33-32218) and incorporated herein by reference.

    11 Filed as an exhibit to the  Company's  Annual Report on Form 10-K for the
       fiscal year ended December 31, 1992 and incorporated herein by reference.

    12 Filed as an exhibit to the  Company's  Annual Report on Form 10-K for the
       fiscal year ended December 31, 1992 and incorporated herein by reference.


ITEM 17.  UNDERTAKINGS

     A. RULE 415 OFFERING

     The undersigned registrant hereby undertakes:

     (1) To file,  during any period in which  offers or sales are being made, a
post-effective amendment to this registration statement:

          (i) To include  any  prospectus  required  by Section  10(a)(3) of the
Securities Act of 1933;

          (ii) To reflect in the  prospectus  any facts or events  arising after
the  effective  date  of  the   registration   statement  (or  the  most  recent
post-effective  amendment  thereof)  which,  individually  or in the  aggregate,
represent a fundamental  change in the information st forth in the  registration
statement;

          (iii) To include any material  information with respect to the plan of
distribution  not  previously  disclosed in this  registration  statement or any
material change to such information in the registration statement;

<PAGE>

     Provided, however, that paragraphs (A)(1)(i) and (A)(1)(ii) do not apply if
the  registration  statement  is on Form S-3, or Form S-8,  and the  information
required or to be included in a post-effective  amendment by those paragraphs is
contained in periodic reports filed by the registrant  pursuant to Section 13 or
Section 15(d) of the Securities  Exchange Act of 1934 that are  incorporated  by
reference in this registration statement.

     (2) That, for the purpose of determining any liability under the Securities
Act of 1933,  each  such  post-effective  amendment  shall be deemed to be a new
registration  statement  relating to the  securities  offered  therein,  and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

     (3) To remove from registration by means of a post-effective  amendment any
of the securities being registered which remain unsold at the termination of the
offering.

     (4) To deliver or cause to be delivered with the prospectus, to each person
to whom the  prospectus  is sent or given,  the latest annual report to security
holders  that is  incorporated  by  reference in the  prospectus  and  furnished
pursuant to and meeting the  requirements  of Rule 14a-3 or Rule 14c-3 under the
Securities  Exchange  Act of 1934;  and,  where  interim  financial  information
required to be presented by Article 3 of Regulation S-X are not set forth in the
prospectus,  to  deliver,  or cause to be  delivered  to each person to whom the
Prospectus is sent or given,  the latest  quarterly  report that is specifically
incorporated  by reference in the  prospectus to provide such interim  financial
information.

     B. FILINGS INCORPORATING SUBSEQUENT EXCHANGE ACT DOCUMENTS BY REFERENCE

     The  undersigned   registrant  hereby  undertakes  that,  for  purposes  of
determining  any liability  under the Securities Act of 1933, each filing of the
registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Securities  Exchange  Act of  1934  that is  incorporated  by  reference  in the
registration  statement  shall  be  deemed  to be a new  registration  statement
relating to the securities offering therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     C. ACCELERATION OF EFFECTIVENESS

     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors,  officers and controlling  persons of the
Company pursuant to the foregoing provisions, or otherwise, the Company has been
advised  that in the opinion of the  Securities  and  Exchange  Commission  such
indemnification is against public policy as expressed in the Securities Act, and
is,  therefore,  unenforceable.  In the event  that a claim for  indemnification
against  such  liabilities  (other  than the  payment by the Company of expenses
incurred or paid by a director,  officer or controlling person of the Company in
the  successful  defense of any action,  suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered,  the Company  will,  unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as  expressed  in the  Securities  Act and will be  governed by the final
adjudication of such issue.

<PAGE>

                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-3 and has  duly  caused  this  registration
statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the  City of  South  San  Francisco,  State  of  California,  on
October 2, 1995.


                                    IMATRON INC.


                                    By:  /s/ S. LEWIS MEYER
                                         -----------------------
                                         S. Lewis Meyer
                                         President and Chief Executive Officer

<PAGE>

                               POWER OF ATTORNEY

     KNOW ALL  PERSONS  BY THESE  PRESENTS,  that each  person  whose  signature
appears below  constitutes  and appoints  Douglas P. Boyd and S. Lewis Meyer, or
either of them,  his true and lawful  attorney-in-fact,  each with full power of
substitution  for him in any and all capacities,  to sign any and all amendments
(including  post-effective  amendments) to this registration  statement,  and to
file the same,  with all exhibits  thereto,  and other  documents in  connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming all that each of said  attorneys-in-fact  or their or his substitutes
or substitute, may do or cause to be done by virtue hereof.

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
registration  statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.

  Signature                   Title                                Date

/s/ S. LEWIS MEYER      President, Chief Executive Officer    October 2, 1995
- --------------------    and Director
S. Lewis Meyer

/s/ DOUGLAS P. BOYD     Chairman of the Board                 October 2, 1995
- --------------------
Douglas P. Boyd

/s/ GARY H. BROOKS      Vice President Finance                October 2, 1995
- --------------------    and Chief Financial Officer
Gary H. Brooks

/s/ UGO BUSATTI         Director                              October 2, 1995
- --------------------
Ugo Busatti

/s/ JOHN L. COUCH       Director                              October 2, 1995
- --------------------
John L. Couch

/s/ GIOVANNI LANZARA    Director                              October 2, 1995
- --------------------
Giovanni Lanzara

/s/ TERRY ROSS          Director                              October 2, 1995
- --------------------
Terry Ross

/s/ ALDO TEST           Director                              October 2, 1995
- --------------------
Aldo Test

<PAGE>

                                  IMATRON INC.

                          INDEX TO EXHIBITS FILED WITH
                        FORM S-3 REGISTRATION STATEMENT

                        1,551,488 Shares of Common Stock


Sequential
Exhibit No.    Description


5.1            Opinion of Counsel as to legality of securities being registered.

24.1           Consent of independent auditors.

24.2           Consent of counsel.

               Reference is made to Exhibit 5.1.

25.1           Power of Attorney (contained in signature pages)

<PAGE>

                                  EXHIBIT 4.1
                                  -----------

                             STOCK OPTION AGREEMENT

     Option  granted as of  November  15,  1994 (the "Date of Grant") by Imatron
Inc. (the "Corporation") to Wall Street  Consultants,  Inc. (which together with
its assigns is sometimes hereinafter referred to as the "Grantee"):

     1. THE OPTION.  In further  consideration of the services to be provided to
the  Corporation  by the  Grantee  pursuant to the  certain  retainer  agreement
between the  Corporation  and the Grantee dated November 15, 1994 (the "Retainer
Agreement"),  the  Corporation  grants to the Grantee,  effective on the Date of
Grant,  a stock option (the  "Option") to purchase,  on the term and  conditions
herein set forth, up to the number of shares (the "Shares") of the Corporation's
fully  paid,  nonassessable  share of common  stock,  ("Common  Stock"),  at the
purchase  price  for the  Shares  set forth in  Section  2 below,  such that the
aggregate  purchase price shall equal $100,000,  provided,  however,  that in no
event shall the  Corporation  be required to sell a  fractional  Share,  and the
number of Shares purchasable hereunder shall be limited accordingly.

     2. THE PURCHASE PRICE.  The purchase price of the Shares shall be $1.00 per
share (the "Option  Price"),  which price is the fair market value of the Shares
as of the Date of the Grant, as such Option Price shall be adjusted from time to
time pursuant to paragraph 10.

     3. EXERCISE OF OPTION.

        (a) The Option is  exercisable  over a period ending five years from the
Date of Grant (the "Option  Price").  The Option may be  exercised  from time to
time during the Option  Period as to the total number of Shares  subject to this
Option as  determined  under Section 1, or any lesser  amount  thereof,  and the
Option shall continue as to any unexercised Shares.

        (b) In the event the Grantee  elects to  exercise  all or any portion of
the option,  the Grantee shall deliver to the  Corporation  written  notice (the
"Notice") of such  election,  which Notice shall specify the number of Shares in
respect of which the Option to be  exercised,  along with  payment of the Option
Price of the Share in respect of which the Option is exercised. The Option Price
shall  be paid in  full  in  United  States  dollars  at the  time of  exercise;
provided,  however,  that if any fees are owed or expenses unreimbursed pursuant
to the Retainer  Agreement,  then the exercise  price may be paid by the Grantee
agreeing to credit the  corporation  therefore.  If the Option is  exercised  in
accordance with the provisions of this Agreement,  the Corporation shall deliver
as soon as practicable to the Grantee a certificate or certificates representing
the number of Shares in respect  of which the Option is being  exercised,  which
Shares shall be registered in the holder's name.

     4. RESTRICTIONS ON TRANSFER; INVESTMENT REPRESENTATIONS.

        (a) The Grantee  understands that: (a) The offer and the issuance of the
Option and the Shares  issuable upon exercise of the Option  (collectively,  the
"Securities")  has not been  registered  under the  Securities  Act of 1933 (the
"Securities Act"), in reliance on an exemption from such registration  available
under the 1933 Act and rules adopted thereunder for

<PAGE>

non-public  offerings;  (b) The  Securities  have not been  qualified  under the
securities  laws of any state,  in reliance on one or more  exemptions from such
qualification  available for this offering and issuance of the Securities  under
applicable  state  securities  laws;  and (c) Grantee  must hold the  Securities
indefinitely  unless  they are  subsequently  registered  under the 1933 Act and
qualified under  applicable  state  securities laws, or unless an exemption from
such registration and qualification is available.

        (b) The Grantee  agrees  that:  (i) Grantee will not attempt to transfer
the Securities in violation of the above restrictions; (ii) the Company may note
such  restrictions  on  transfer  in their  respective  records  and  refuse  to
recognize any transfer  which  violates this  Agreement or for which the Company
has not received an  acceptable  opinion of counsel  stating that such  transfer
will not violate such  restrictions;  and (iii) One or more legends indicating a
lack of registration under the Securities Act and a lack of qualification  under
state securities laws will be imprinted on the Securities. One such legend shall
read substantially as follows:

        THE SHARES  HAVE NOT BEEN  REGISTERED  WITH THE  SECURITIES  AND
        EXCHANGE  COMMISSION  UNDER  THE  SECURITIES  ACT  OF  1933,  AS
        AMENDED,  AND ANY SALE,  TRANSFER,  PLEDGE OR OTHER  DISPOSITION
        THEREOF MAY BE MADE ONLY (i) IN A REGISTRATION UNDER SAID ACT OR
        (ii)  IF AN  EXEMPTION  FROM  REGISTRATION  UNDER  SAID  ACT  IS
        AVAILABLE  AND THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL TO
        THAT EFFECT REASONABLY SATISFACTORY TO IT.


        (c)  Grantee  hereby  represents  and  warrants  to the  Corporation  as
follows: (i) Grantee is acquiring the Securities for his or her own account, for
investment,  and not with a view to any  sale or  distribution  of any  interest
therein;  (ii) The Grantee has such  knowledge  and  experience in financial and
business  matters  as to be  capable  of  evaluating  the merits and risks of an
investment in the Securities, and the Grantee is able to bear the economic risks
of such an investment; and (iii) all statements made, and information furnished,
by the Grantee in this  certificate and all other  information  furnished by the
Grantee to the Corporation,  are true and complete, to the best of the Grantee's
knowledge.

        (d) The Grantee agrees that the above representations and warranties are
binding on the Grantee's  successors and assigns and are made for the benefit of
the  Corporation  and any other persons who may become liable for  violations of
federal  or state  securities  laws as a  result  of the  falsity  of any of the
Grantee's  representations  or  warranties.  The  Grantee  agrees to  indemnify,
defend,  and hold  harmless  such  persons from any  liability  arising from the
falsity of any of the Grantee's representations or warranties.

     5. REGISTRATION  RIGHTS.  The  Corporation  agrees that, for so long as the
Option remains  exercisable and for a period of two years  thereafter,  whenever
the Corporation  proposes to file with the Securities and Exchange  Commission a
registration  statement (other than as to securities issued pursuant to employee
benefit plan or as to a merger,  acquisition or similar  transaction  subject to
Rule 145 promulgated under the Securities Act), the Corporation  shall, at least
30 days prior to such filing, give written notice of such proposed filing to the
Grantee setting forth the facts with respects to such proposed filing, and shall
make its best efforts to include in any such filing

<PAGE>

the Shares  subject  to the  Option  provided  that the  Corporation  receives a
request  therefor at least 10 days prior to the proposed  filing date. All fees,
disbursements  and  out-of-pocket  expenses in connection with the filing of any
registration  statement and in complying with applicable securities and blue sky
laws be borne by the Corporation.  Should Corporation not be able to include the
option shares in an  registration  statement that relates to the public offering
of shares,  (due to opposition from  underwriter),  Corporation agrees to file a
separate registration statement as soon as possible for the option shares.

     The  Corporation  will  indemnify  and hold  harmless  the Grantee and each
person who controls  the Grantee  within the meaning of Section 15 of the Act or
Section 20 of the  Securities  Exchange Act of 1934,  as amended (the  "Exchange
Act") form and  against  any and all  losses,  claims,  damages,  expenses,  and
liabilities,  joint or several  (including  any  investigation,  legal and other
expenses  incurred in  connection  with,  and any amount paid in any  settlement
effected with the  Corporation's  consent (not to be unreasonably  withheld) of,
any action,  suit or proceeding or any claim asserted,  to which they, or any of
them,  may become  subject  under the Act, the Exchange Act or other  federal or
state law or  regulation,  at common law or  otherwise,  insofar as such losses,
claims,  damages  or  liabilities  arise out of or are  based on (A) any  untrue
statement  or alleged  untrue  statement  of a material  fact  contained  in the
registration  statement filed with respect to the Shares  (including any related
preliminary  or  definitive  prospectus,  or any amendment or supplement to such
registration  statement or prospectus),  (B) any omission or alleged omission to
state in such  document a material fact required to be stated in it or necessary
to  make  the  statements  in it not  misleading,  or (C) any  violation  by the
Corporation  of the  Act,  the  Exchange  Act,  any blue sky laws or any rule or
regulation  thereunder in connection with such  registration;  provided however,
that the  Corporation  will not be liable to the extent  that such loss,  claim,
damage,  expense  or  liability  arises  form and is based  solely on a material
untrue  statement or omission or alleged  material untrue  statement or omission
made in such registration statement and in conformity with information furnished
in  writing  to the  Corporation  by  the  Grantee  expressly  for  use in  such
registration statement. With respect to the matter referred to in the proviso of
the  foregoing  sentence,  the Grantee  will  indemnify  and hold  harmless  the
Corporation from and against any and all losses, claims, damages,  expenses, and
liabilities, joint or several, to which it may become subject under the Act, the
Exchange Act or other federal or state  statutory law or  regulation,  at common
law or  otherwise  to the same  extent  provided  in the  immediately  preceding
sentence.

     Promptly  after  receipt  by  an   indemnified   party  of  notice  of  the
commencement  of any  action  involving  matters  referred  to in the  foregoing
paragraph,  such indemnified  party will, if a claim in respect thereof is to be
made against any indemnifying  party,  thereof and the indemnifying  party shall
have the right to participate in, and, to the extent the  indemnifying  party so
desires, jointly with any other indemnifying party similarly notified, to assume
the defense thereof at its own expense with counsel  reasonably  satisfactory to
the indemnified  party or parties,  and in such case, if the  indemnified  party
desires to retain its own counsel, the expense of such counsel shall be borne by
the indemnified party.

<PAGE>

     6. TERMINATION OF RETAINER  AGREEMENT.  In the event the  engagement of the
Wall Street Group,  Inc.  under the Retainer  Agreement  ceases by reason of the
termination of the Retainer Agreement by either party on ninety (90) days notice
pursuant to the provisions  thereof,  the maximum  number of Shares  exercisable
hereunder shall be multiplied by a fraction, the numerator of which shall be the
number of days which shall have expired from the Date of Grant to the earlier of
the next subsequent  anniversary  date of the Retainer  Agreement or ninety (90)
days after receipt by the Wall Street Group,  Inc. of the notice of  termination
sent  pursuant  thereto,  and the  denominator  of which shall be 365,  and such
product shall thereupon be the maximum number of Shares  purchasable  hereunder;
provided,  however, that in no event shall the Corporation be required to sell a
fractional  Share,  and the  number of  Shares  purchasable  hereunder  shall be
limited accordingly.

     7. SUCCESSORS AND ASSIGNS.  This agreement  shall be binding upon and shall
inure to the benefit of the parties' respective successors and assigns.

     8. EXPIRATION  OF  OPTION.  This   Option  is  not  exercisable  after  the
expiration of five years from the Date of Grant.

     9. RIGHTS.

        (a) The  granting of this  Option  shall not confer upon the Grantee any
right to continue to be retained by the Corporation or any of its  subsidiaries,
subject, however, to the terms of the Retainer Agreement between the Grantee and
the Corporation.

        (b) The  Grantee  shall  not,  by  reason of the  granting  to it of the
Option,  have or thereby  acquire any rights of a stockholder of the Corporation
with respect to any Shares  unless and until it has tendered full payment of the
Option Price for such Shares.

     10.  ADJUSTMENT OF NUMBER OF SHARES AND OPTION  PRICE.  In the event that a
dividend  shall be declared  upon the Shares  payable in shares of Common Stock,
the number of Shares  then  subject to the Option and the Option  Price shall be
adjusted by adding to each of such  Shares the number of shares of Common  Stock
which would be  distributable  thereon if such Share had been outstanding on the
date fixed for  determining  the  stockholders  entitled  to receive  such stock
dividend and reducing  the Option  Price  proportionally.  In the event that the
outstanding  Shares shall be changed into or exchanged for a different number or
kind of shares of stock or other  securities  of the  Corporation  or of another
corporation, whether through reorganization,  recapitalization,  stock split-up,
combination of shares, merger or consolidation,  then there shall be substituted
for each  Share  subject to the Option the number and kind of shares of stock or
other securities into which each  outstanding  share of Common Stock shall be so
changed or for which each such share be exchanged;  provided,  however,  that in
the event that such change or exchange  results from a merger or  consolidation,
and  in the  judgement  of the  Board  of  Directors  of  the  Corporation  such
substitution cannot be effected or would be inappropriate, or if the Corporation
shall sell all or  substantially  all of its assets,  the Corporation  shall use
reasonable efforts to effect some other adjustment of the Option which the Board
of Directors,  in its sole discretion,  shall deem equitable.  In the event that
there shall be any change, other than as specified above in the Paragraph 10, in
the  number or kind of  outstanding  Shares or of any stock or other  securities

<PAGE>

into which such Shares shall have been changed or for which they shall have been
exchanged,  then,  if the Board of Directors  shall  determine  that such change
equitably  requires and adjustment in the number or kinds of Shares then subject
to the Option, such adjustment shall be made by the Board of Directors and shall
be effective  and binding for all  purposes of this  Option.  In the case of any
such  substitution or adjustment as provided for in this  paragraph,  the Option
Price will be the option price for all shares of stock or other securities which
shall have been  substituted  for each  Share or to which such Share  shall have
been adjusted  pursuant to this  paragraph  10. No  adjustment  or  substitution
provided  for in this  paragraph  10 shall  require  the  Corporation  to sell a
fractional  Share,  and the total  substitution  or adjustment  shall be limited
accordingly.

     11. RESERVE OF SHARES.  The Corporation will reserve and set about and have
at all times, free from preemptive  rights, a number of shares or authorized but
unissued Common Stock deliverable upon exercise of the Option,  and it will have
at all times any other rights or privileges  provided for therein  sufficient to
enable it at any time to fulfill all of its obligations in this Agreement.

     12. GOVERNING LAW. This  Agreement  shall be governed by, and construed and
enforced in accordance with, the laws of the State of New York.

     If the foregoing is in  accordance  with the  Grantee's  understanding  and
approved by it, it may so confirm by signing and returning the duplicate of this
Agreement delivered for that purpose.

     DATED: November 15, 1994

                             IMATRON INC.


                             By:  /s/ S. LEWIS MEYER
                                  -----------------------


     The foregoing is in accordance with the undersigned's  understanding and is
hereby confirmed and agreed to as of the Date of Grant.

     DATED: April 9 , 1995

                             WALL STREET CONSULTANTS, INC.


                             By:  /s/ DONALD KIRSCH
                             -----------------------

<PAGE>

                                  Exhibit 5.1
                                  -----------


                                                              September 28, 1995


Imatron Inc.
389 Oyster Point Blvd.
South San Francisco, CA 94080

Gentlemen:

     You  have  requested  our  opinion  with  respect  to  certain  matters  in
connection  with the filing by Imatron Inc. (the "Company") of a Registration on
Form  S-3  (the  "Registration  Statement")  with the  Securities  and  Exchange
Commission on behalf of certain Selling Shareholders covering the offering of up
to shares of the Company's Common Stock.  1,325,000 shares are issuable upon the
exercise of Warrants  issued in a private  offering which concluded on September
15, 1993 (the "Private  Offering  Warrant  Shares").  126,888 shares were issued
March 1994 in a private transaction as partial payment for professional services
rendered (the "Outstanding Shares").  100,000 shares are issuable upon excercise
of options granted in November 1994 as partial payment for professional services
rendered ("Option Shares"). The Private Offering Warrant Shares, the Outstanding
Shares  and the  Option  Shares  are  collectively  referred  to  herein  as the
"Shares."

     In  connection  with this  opinion,  we have  examined  and relied upon the
Registration  Statement and related  Prospectus,  the Company's  Certificate  of
Incorporation  and  Bylaws,  as  amended,  and such  other  records,  documents,
certificates,  memoranda and other  instruments as in our judgment are necessary
or  appropriate  to enable us to render the  opinion  expressed  below.  We have
assumed the  genuineness and  authenticity  of all documents  submitted to us as
originals,  the  conformity  to  originals of all  documents  submitted to us as
copies  thereof,  and the due execution  and delivery of all documents  were due
execution and delivery are a prerequisite to the effectiveness thereof.

     We do not hold  ourselves  out as  experts  in the laws of the State of New
Jersey and our  opinion is based  solely on a review of the New Jersey  Business
Corporation Act, as reported in unofficial compilations.

     On the  basis of the  foregoing,  and in  reliance  thereon,  we are of the
opinion that:

     The Outstanding  Shares are validly issued,  fully paid and  non-assessable
shares of the Common Stock of the Company.

     The Private  Offering  Warrant  Shares,  when sold and issued in accordance
with the  Warrants,  the Warrant  Agreements,  the  Registration  Statement  and
related Prospectus, will be validly issued, fully paid, and nonassessable.

     The Option Shares, when sold and issued in accordance with the Options, the
Option Agreement,  the Registration  Statement and related  Prospectus,  will be
validly issued, fully paid, and nonassessable.

     This  opinion is  intended  solely for your  benefit  and is not to be made
available to or be relied upon by any other person,  firm or entity  without our
prior written consent.

     We consent to the filing of this opinion as an exhibit to the  Registration
Statement.


                             SEVERSON & WERSON
                             A Professional Corporation


                             By:  /s/ ROGER S. MERTZ
                                  -----------------------
                                  Roger S. Mertz

<PAGE>

                                  EXHIBIT 24.1
                                  ------------


                        Consent of Independent Auditors


     We consent to the reference to our firm under the caption  "Experts" in the
Registration  Statement on Form S-3 (No.  33-00000)  and related  Prospectus  of
Imatron Inc. for the registration of 1,551,448 shares of its common stock and to
the  incorporation  by reference  therein of our report dated February 17, 1995,
except  for Note 11 as to which the date is April 4, 1995  with  respect  to the
consolidated  financial statements and schedules of Imatron Inc. included in its
Annual Report on Form 10-K for the year ended December 31, 1994,  filed with the
Securities and Exchange Commission.


                             By:  /s/ Ernst & Young
                                  -----------------------
                                  Ernst & Young LLP



San Francisco, California
September 28, 1995



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission