[ARTICLE] 5
<TABLE>
<S> <C> <C>
[PERIOD-TYPE] 3-MOS 3-MOS
[FISCAL-YEAR-END] MAR-31-1999 MAR-31-1998
[PERIOD-END] JUN-30-1998 JUN-30-1997
[CASH] 3,993,408 4,557,952
[SECURITIES] 2,016,307 0
[RECEIVABLES] 1,586,742 1,376,711
[ALLOWANCES] (35,516) (40,048)
[INVENTORY] 1,957,432 2,049,281
[CURRENT-ASSETS] 9,639,111 8,054,055
[PP&E] 2,743,410 2,546,220
[DEPRECIATION] (1,084,030) (978,291)
[TOTAL-ASSETS] 12,150,833 10,583,998
[CURRENT-LIABILITIES] 614,833 569,790
[BONDS] 0 0
[PREFERRED-MANDATORY] 0 0
[PREFERRED] 0 0
[COMMON] 3,306,338 3,413,063
[OTHER-SE] 8,154,662 6,538,345
[TOTAL-LIABILITY-AND-EQUITY] 12,150,833 10,583,998
[SALES] 1,783,895 1,846,058
[TOTAL-REVENUES] 1,783,895 1,846,058
[CGS] 577,164 633,864
[TOTAL-COSTS] 590,900 575,855
[OTHER-EXPENSES] (76,068) (45,544)
[LOSS-PROVISION] 0 0
[INTEREST-EXPENSE] 0 0
[INCOME-PRETAX] 691,899 681,883
[INCOME-TAX] 242,000 247,500
[INCOME-CONTINUING] 449,899 434,383
[DISCONTINUED] 0 0
[EXTRAORDINARY] 0 0
[CHANGES] 0 0
[NET-INCOME] 449,899 434,383
[EPS-PRIMARY] .11 .10
[EPS-DILUTED] .10 .10
</TABLE>
