Inventor
TOKUDA RYUJI
JP26 patents
Patents
26 patentsUS4350418ASep 21, 1982
Camera provided with automatic focus adjusting device
CANON KK75 citations96
US6858983B2Feb 22, 2005
Display device having conical transparent members covering electroluminescent elements
CANON KK22 citations92
US4547770AOct 15, 1985
Battery voltage checking apparatus
CANON KK23 citations82
US4720723AJan 19, 1988
Distance measuring device
CANON KK23 citations79
US4550992ANov 5, 1985
Motor drive control circuit
CANON KK11 citations74
US4544254AOct 1, 1985
Camera with a display device for displaying both object distance informations and coupling range informations
CANON KK9 citations74
US4542970ASep 24, 1985
Shutter release device
CANON KK12 citations74
US4512643AApr 23, 1985
Exposure control device for camera
CANON KK7 citations74
US4502774AMar 5, 1985
Battery check device for camera
CANON KK12 citations74
US4479708AOct 30, 1984
Temperature compensation system of light measuring circuit
CANON KK8 citations74
US4453812AJun 12, 1984
Auto-focus device for camera
CANON KK10 citations74
US4429967AFeb 7, 1984
Distance measuring system
CANON KK18 citations74
US4425031AJan 10, 1984
Automatic focus adjusting apparatus for camera
CANON KK13 citations74
US4300824ANov 17, 1981
Signal processing circuitry for a distance measuring system
CANON KK11 citations74
US4701048AOct 20, 1987
Input circuit for distance measuring apparatus
CANON KK14 citations71
US4482238ANov 13, 1984
Brightness warning device for camera
CANON KK2 citations63
US4459574AJul 10, 1984
Driving circuit for a coil
CANON KK5 citations63
US4365878ADec 28, 1982
Signal processing circuitry for a distance measuring system
CANON KK4 citations63
US4317070AFeb 23, 1982
Circuits for flash equipment
CANON KK3 citations63
US4206987AJun 10, 1980
Exposure adjusting device for camera system
CANON KK6 citations62
US4482236ANov 13, 1984
Electrically operated camera and disabling device therefor
CANON KK4 citations60
US4415249ANov 15, 1983
Motor drive circuit for camera
CANON KK4 citations59
US4537489AAug 27, 1985
Automatic focusing device
CANON KK1 citations52
US4500193AFeb 19, 1985
Indicating apparatus for camera
CANON KK1 citations52
US4375321AMar 1, 1983
Exposure amount control device
CANON KK1 citations52
US4425032AJan 10, 1984
Cameras and circuits for sensing the action of camera shutters
CANON KK0 citations42