Inventor
NUMATA TOORU
US4 patents
Patents
4 patentsUS5436639AJul 25, 1995
Information processing system
HITACHI LTD243 citations98
US5272540ADec 21, 1993
Temperature compensating lens system for projection television
HITACHI LTD37 citations92
US5200814AApr 6, 1993
Video projector with optical color balance
HITACHI LTD21 citations92
US5103302AApr 7, 1992
Optical system for projection type image display device
HITACHI LTD39 citations92