Inventor
MATSUO HIROFUMI
JP22 patents
⚠️ This page may combine multiple inventors who share the name “MATSUO HIROFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
17 patentsUS4944030AJul 24, 1990
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD124 citations99
US5379105AJan 3, 1995
Roof surface measuring apparatus
ASAHI OPTICAL CO LTD38 citations92
US5162945ANov 10, 1992
Ocular lens system
ASAHI OPTICAL CO LTD33 citations92
US5157429AOct 20, 1992
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD25 citations92
US5673099ASep 30, 1997
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD9 citations82
US5142315AAug 25, 1992
Lens shutter type of camera including zoom lens
ASAHI OPTICAL CO LTD17 citations82
US5625487AApr 29, 1997
Device for adjusting the diopter setting of a finder assembly
ASAHI OPTICAL CO LTD13 citations74
US5621568AApr 15, 1997
Device for adjusting the diopter setting of a finder assembly
ASAHI OPTICAL CO LTD11 citations74
US5589976ADec 31, 1996
Telescope with rear converter and rear conversion lens and telescope
ASAHI OPTICAL CO LTD10 citations74
US5583596ADec 10, 1996
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD3 citations74
US5465131ANov 7, 1995
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD5 citations74
US5276475AJan 4, 1994
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD9 citations74
US5150145ASep 22, 1992
Lens shutter camera including zoom lens
ASAHI OPTICAL CO LTD14 citations74
US4923292AMay 8, 1990
Macro lens system
ASAHI OPTICAL CO LTD13 citations74
US4871241AOct 3, 1989
Compact zoom lens system
ASAHI OPTICAL CO LTD7 citations74
US4740063AApr 26, 1988
Telephoto zoom lens system
ASAHI OPTICAL CO LTD11 citations74
US5353158AOct 4, 1994
Albada type zoom finder
ASAHI OPTICAL CO LTD3 citations63