<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> MAR-31-1995 <PERIOD-END> DEC-31-1994 <CASH> 150,601,000 <SECURITIES> 889,000 <RECEIVABLES> 55,253,000 <ALLOWANCES> 0 <INVENTORY> 70,880,000 <CURRENT-ASSETS> 285,807,000 <PP&E> 127,162,000 <DEPRECIATION> 38,076,000 <TOTAL-ASSETS> 508,227,000 <CURRENT-LIABILITIES> 51,841,000 <BONDS> 0 <COMMON> 39,915,000 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 410,198,000 <TOTAL-LIABILITY-AND-EQUITY> 508,227,000 <SALES> 285,430,000 <TOTAL-REVENUES> 285,430,000 <CGS> 119,920,000 <TOTAL-COSTS> 119,920,000 <OTHER-EXPENSES> 65,457,000 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 21,000 <INCOME-PRETAX> 124,885,000 <INCOME-TAX> 37,258,000 <INCOME-CONTINUING> 87,627,000 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 87,627,000 <EPS-PRIMARY> 1.10 <EPS-DILUTED> 1.10