Inventor
WATANABE SAKUJI
JP33 patents
Patents
33 patentsUS3992104ANov 16, 1976
Automatic polarization analyzer device
NIPPON KOGAKU KK22 citations82
US4634851AJan 6, 1987
Control device for automatic focusing
NIPPON KOGAKU KK15 citations74
US4473286ASep 25, 1984
Automatic focusing device of a camera
NIPPON KOGAKU KK14 citations74
US4275953AJun 30, 1981
Exposure parameter information generating circuit in a single lens reflex camera
NIPPON KOGAKU KK9 citations74
US4204755AMay 27, 1980
Display device in an automatic exposure control camera
NIPPON KOGAKU KK8 citations74
US4099115AJul 4, 1978
Constant-voltage regulated power supply
NIPPON KOGAKU KK19 citations74
US4497564AFeb 5, 1985
Exposure mode setting device in an exposure control apparatus of a camera
NIPPON KOGAKU KK7 citations73
US4269496AMay 26, 1981
Power supply circuit for camera
NIPPON KOGAKU KK17 citations73
US4189219AFeb 19, 1980
Control system for flash photographing apparatus
NIPPON KOGAKU KK8 citations73
US4160160AJul 3, 1979
Circuit for integrating a quantity of light in an automatic control type flash unit
NIPPON KOGAKU KK9 citations73
US4122465AOct 24, 1978
Device for indicating condition of exposure in an automatic control type electronic flash unit for flash photography
NIPPON KOGAKU KK12 citations73
US4307948ADec 29, 1981
Diaphragm control apparatus for camera
NIPPON KOGAKU KK7 citations72
US4238146ADec 9, 1980
Sound alarm device in a camera
NIPPON KOGAKU KK14 citations72
US4477169AOct 16, 1984
Automatic focusing camera system and photographing lens structure therefor
NIPPON KOGAKU KK2 citations63
US4422739ADec 27, 1983
Auto focus camera
NIPPON KOGAKU KK4 citations63
US4385819AMay 31, 1983
Display device in automatic exposure control camera
NIPPON KOGAKU KK2 citations63
US4340284AJul 20, 1982
Temperature-compensated signal transmitting device
NIPPON KOGAKU KK2 citations63
US4196989AApr 8, 1980
TTL Metering system automatic exposure control camera
NIPPON KOGAKU KK3 citations63
US4187017AFeb 5, 1980
Motor drive device in a camera
NIPPON KOGAKU KK5 citations63
US4176933ADec 4, 1979
Indicating apparatus for camera
NIPPON KOGAKU KK3 citations63
US4129366ADec 12, 1978
Photometric device for a camera
NIPPON KOGAKU KK5 citations63
US4104666AAug 1, 1978
Exposure control circuit for camera
NIPPON KOGAKU KK4 citations63
US4045142AAug 30, 1977
Metering device for cameras
NIPPON KOGAKU KK3 citations63
US4389108AJun 21, 1983
Power supply control circuit in a camera
NIPPON KOGAKU KK3 citations62
US4264164AApr 28, 1981
Memory holding device in a single lens reflex camera
NIPPON KOGAKU KK2 citations62
US4564281AJan 14, 1986
Signal selector for automatic exposure apparatus of camera
NIPPON KOGAKU KK3 citations61
US4239358ADec 16, 1980
Alarm device control system in a camera
NIPPON KOGAKU KK3 citations61
US3988067AOct 26, 1976
Automatic polarization analyzing device
NIPPON KOGAKU KK4 citations57
US4316660AFeb 23, 1982
Alarm device in an automatic exposure camera
NIPPON KOGAKU KK6 citations54
US4408854AOct 11, 1983
Automatic focus detecting apparatus of a camera
NIPPON KOGAKU KK1 citations52
US4396269AAug 2, 1983
Shutter release locking device
NIPPON KOGAKU KK1 citations52
US4457606AJul 3, 1984
Motor drive unit for camera
NIPPON KOGAKU KK1 citations51
US4089013AMay 9, 1978
Flashlight information signal generating device for a camera
NIPPON KOGAKU KK1 citations51