<PAGE>
THE TOTAL NUMBER OF PAGES CONTAINED IN THIS DOCUMENT IS 5
FORM 6-K
--------
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Report of Foreign Issuer
Pursuant to Rule 13a-16 or 15d-16 of the
Securities Exchange Act of 1934
For the month of May 2000
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
(Translation of registrant's name into English)
3-1, OTEMACHI 2-CHOME
CHIYODA-KU, TOKYO 100-8116, JAPAN
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports
under cover of Form 20-F or Form 40-F.
Form 20-F X Form 40-F ___
---
Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.
Yes ____ No X
---
If "Yes" is marked, indicate below the file number assigned to the registrant in
connection with Rule 12g3-2(b):
82-____________.
<PAGE>
2
ANNOUNCEMENT OF NTT'S SALE OF U.S. SUBSIDIARY, PHOTONIC INTEGRATION RESEARCH
INC. (PIRI)
On May 10, 2000, the registrant announced that it, together with three other
companies, sold shares in Photonic Integration Research, Inc. to Spectral Diode
Laboratories Inc. (SDL) in exchange for SDL stock. Attached hereto is a press
release describing the nature of the sale.
<PAGE>
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.
NIPPON TELEGRAPH AND TELEPHONE
CORPORATION
By /s/ KAZUTO TSUBOUCHI
---------------------------------
Name: Kazuto Tsubouchi
Title: Senior Manager
Investor Relations Group
Department IV
Date: May 11, 2000
<PAGE>
5/11/2000
FOR NEWS RELEASE
NTT and MC ANNOUCE THE SALE OF U.S SUBSIDIARY,
PHOTONIC INTEGRATION RESEARCH INC. (PIRI)
Nippon Telegraph and Telephone Corporation (NTT), Mitsubishi Corporation (MC),
Mitsubishi International Corporation (MIC) and Battelle (Memorial Institution),
the sole equity shareholders of Photonic Integration Research, Inc. (PIRI), a
privately owned company, have agreed to the sale of all PIRI shares to SDL Inc.
in exchange for SDL stock. An agreement was signed on May 10, 2000, New York
time.
1. Description of PIRI
(a) Date of Foundation July, 1987
(b) Chief Officer Tadashi Miyashita
(c) Location Columbus, Ohio
(d) Capital US $8.1M
(e) Shareholders Equity
(Paid-in-capital) NTT 49%
MC 31%
MIC 10%
Battelle 10%
(f) Business R&D, manufacturing and sale of optical
waveguide products and related
components/products
(g) Employees 133
2. Total Sales Price US $1.49 billion in SDL stock
3. Closing Date June, 2000
4. Miscellaneous NTT will receive US $310 million in SDL
stock as a royalty fee for technology
license.
Contacts:
Masaki Nakashima, Senior Manager
Naoki Shibutani, Manager
1st Department
Nippon Telegraph and Telephone Corporation
(03)5205-5107
Yasuhito Hirota
Press Relations Office
Corporate Communications Dept.
Mitsubishi Corporation
03-3210-2175
<PAGE>
Attachment
1. About PIRI
PIRI was founded in 1987 by NTT, MC, MIC and Battele for R&D,
manufacturing and sale of optical waveguide products and related
components/products in the US market. With a help of technology transfer
from NTT, PIRI has developed optical waveguide products and has been
selling them in worldwide. By a growing demand for the broadband network
since 1997, demand for PIRI's core product, AWG(Arrayed-Waveguide
Grating), which is used for DWDM(Dense Wavelength Division Multiplexing)
has expanded very rapidly and PIRI has succeeded in clearing its
accumulated debt.
2. Description of SDL
(a) Date of Foundation 1983
(b) Chief Officer Donald R. Scifres
(c) Location California. USA
(d) Capital US $93.2M (Listed on NASDAQ)
(e) Business R&D, manufacturing and sale of laser
equipment and optical network equipment
(f) Results in 1999 Sales: US $187M, Net Income: US $25M
(unaudited)
* * *
