Inventor
OSAWA ATSUO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “OSAWA ATSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS6130786AOct 10, 2000
Projection lens and image display device
HITACHI LTD125 citations99
US6396506B1May 28, 2002
Display operation method to change the number of images to be displayed and to independently change image direction and rotation of each image
HITACHI LTD83 citations97
US5926153AJul 20, 1999
Multi-display apparatus
HITACHI LTD93 citations97
US5590943AJan 7, 1997
Rear projection type image display apparatus and transmission type screen used therein
HITACHI LTD49 citations96
US5513037AApr 30, 1996
Rear-projection screen and a rear projection image display employing the rear-projection screen
HITACHI LTD47 citations96
US5485308AJan 16, 1996
Rear-projection type image display apparatus and rear-projection type screen
HITACHI LTD70 citations94
US5892492AApr 6, 1999
Plasma display panel with optical filters
HITACHI LTD24 citations92
US5659424AAug 19, 1997
Projecting lens and image display device
HITACHI LTD29 citations92
US5400114AMar 21, 1995
Rear-projection screen and a rear projection image display employing the rear-projection screen
HITACHI LTD36 citations92
US5933280AAug 3, 1999
Projection lens and image display device
HITACHI LTD7 citations74
US4780783AOct 25, 1988
Locking device for a cover of magnetic tape cartridge
HITACHI LTD13 citations74
US4862300AAug 29, 1989
Tape guide moving mechanism for magnetic record reproducing apparatus
HITACHI LTD7 citations73
US4748521AMay 31, 1988
Magnetic recording/reproducing apparatus for recording onto or reproducing from a magnetic tape
HITACHI LTD11 citations72
US4725910AFeb 16, 1988
Rotary magnetic head assembly
HITACHI LTD7 citations71