Inventor
YUASA YOSHIO
JP36 patents
⚠️ This page may combine multiple inventors who share the name “YUASA YOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINOLTA CAMERA KK
32 patentsUS4465370AAug 14, 1984
Light measuring device
MINOLTA CAMERA KK154 citations99
US4485336ANov 27, 1984
Electronic flash device
MINOLTA CAMERA KK78 citations95
US4367932AJan 11, 1983
Exposure control system
MINOLTA CAMERA KK28 citations93
US4291979ASep 29, 1981
Device for measuring light under ambient light and/or flash light and a method therefor
MINOLTA CAMERA KK29 citations93
US4389118AJun 21, 1983
Color meter
MINOLTA CAMERA KK46 citations90
US4717861AJan 5, 1988
Electronic flash device
MINOLTA CAMERA KK18 citations82
US4608522AAug 26, 1986
Electronic flash device
MINOLTA CAMERA KK16 citations82
US4402611ASep 6, 1983
Colorimeter
MINOLTA CAMERA KK23 citations82
US4397533AAug 9, 1983
Photographic light measuring device
MINOLTA CAMERA KK23 citations82
US4576470AMar 18, 1986
Enlarger for use in photography
MINOLTA CAMERA KK20 citations81
US4575225AMar 11, 1986
Color enlarger
MINOLTA CAMERA KK17 citations81
US4994845AFeb 19, 1991
Light measuring device
MINOLTA CAMERA KK9 citations74
US4449822AMay 22, 1984
Exposure indicator
MINOLTA CAMERA KK7 citations74
US4401386AAug 30, 1983
Light measuring device
MINOLTA CAMERA KK15 citations74
US4373793AFeb 15, 1983
Light measuring device for flash photography
MINOLTA CAMERA KK15 citations74
US4227808AOct 14, 1980
Digital light measuring device
MINOLTA CAMERA KK18 citations74
US4704025ANov 3, 1987
Enlarger for use in photography
MINOLTA CAMERA KK8 citations73
US4655576AApr 7, 1987
Light measuring device
MINOLTA CAMERA KK17 citations73
US4551011ANov 5, 1985
Light source for exposure
MINOLTA CAMERA KK19 citations73
US4469437ASep 4, 1984
Light measurement and light control data calculation device for a photographic enlarger
MINOLTA CAMERA KK16 citations73
US4364662ADec 21, 1982
Dual mode camera exposure meters
MINOLTA CAMERA KK11 citations68
US4637721AJan 20, 1987
Light measuring device
MINOLTA CAMERA KK4 citations63
US4601571AJul 22, 1986
Exposure determining device for an enlarger
MINOLTA CAMERA KK5 citations63
US4465354AAug 14, 1984
System and method for calculating a light information value
MINOLTA CAMERA KK3 citations63
US4440489AApr 3, 1984
Exposure aiding device for an enlarger
MINOLTA CAMERA KK3 citations63
US4397553AAug 9, 1983
Photographic spot measuring apparatus
MINOLTA CAMERA KK6 citations63
US4262997AApr 21, 1981
Exposure information indicating device
MINOLTA CAMERA KK6 citations63
US4229088AOct 21, 1980
Exposure time controlling system
MINOLTA CAMERA KK2 citations63
US4531830AJul 30, 1985
Automatic focusing device for an enlarger
MINOLTA CAMERA KK2 citations62
US4518250AMay 21, 1985
Exposure control device for a photographic enlarger
MINOLTA CAMERA KK0 citations52
US4482978ANov 13, 1984
Key switch input control circuit
MINOLTA CAMERA KK1 citations52
US4353629AOct 12, 1982
System and method for calculating a light information value
MINOLTA CAMERA KK0 citations52