<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> MAR-31-2001 <PERIOD-START> APR-01-2000 <PERIOD-END> SEP-30-2000 <CASH> 4,470,288 <SECURITIES> 11,839,067 <RECEIVABLES> 388,033 <ALLOWANCES> 20,871 <INVENTORY> 745,333 <CURRENT-ASSETS> 15,063,957 <PP&E> 4,731,952 <DEPRECIATION> 3,589,228 <TOTAL-ASSETS> 19,310,685 <CURRENT-LIABILITIES> 1,244,417 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 15,268,469 <COMMON> 66,381,232 <OTHER-SE> (63,583,433) <TOTAL-LIABILITY-AND-EQUITY> 19,310,685 <SALES> 637,319 <TOTAL-REVENUES> 1,014,309 <CGS> 1,156,728 <TOTAL-COSTS> 3,380,396 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (1,962,990) <INCOME-TAX> 0 <INCOME-CONTINUING> (2,525,926) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (2,525,926) <EPS-BASIC> (0.37) <EPS-DILUTED> (0.37)