Inventor
YOSHIZAKI ISAO
US11 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIZAKI ISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
10 patentsUS5513037AApr 30, 1996
Rear-projection screen and a rear projection image display employing the rear-projection screen
HITACHI LTD47 citations96
US5066099ANov 19, 1991
Rear projection screen and method of producing the same
HITACHI LTD136 citations95
US5500747AMar 19, 1996
Ultra-wide angle liquid crystal projector system
HITACHI LTD43 citations92
US5400114AMar 21, 1995
Rear-projection screen and a rear projection image display employing the rear-projection screen
HITACHI LTD36 citations92
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
US4948237AAug 14, 1990
Projection lens system
HITACHI LTD28 citations92
US4729031AMar 1, 1988
Coupling system for image projection
HITACHI LTD9 citations69
US5255122AOct 19, 1993
Projection lens system for projection type television
HITACHI LTD2 citations62