Inventor

UMEZAWA KIYOSHI

JP3 patents

Patents

3 patents

US4626838ADec 2, 1986

Filled shaped generating apparatus

HITACHI LTD36 citations90

US4158883AJun 19, 1979

Refresh control system

HITACHI LTD21 citations79

US4580236AApr 1, 1986

Graphic display apparatus with a vector generating circuit

HITACHI LTD15 citations71