Inventor
TOKUTOMI SEIJIRO
18 patents
Patents
18 patentsUS4083056AApr 4, 1978
Focus detecting device for single-lens reflex cameras
ASAHI OPTICAL CO LTD56 citations96
US4180309ADec 25, 1979
Focal point detecting device for SLR camera
ASAHI OPTICAL CO LTD28 citations82
US4313657AFeb 2, 1982
Display device for focus detecting and indicating device for camera
ASAHI OPTICAL CO LTD19 citations74
US4293206AOct 6, 1981
Electrically operated automatic focalizing camera
ASAHI OPTICAL CO LTD12 citations74
US4600830AJul 15, 1986
Focus detecting device
ASAHI OPTICAL CO LTD6 citations73
US4580042AApr 1, 1986
Focusing position detecting device using a sector shaped mirror
ASAHI OPTICAL CO LTD7 citations73
US4293205AOct 6, 1981
Camera focus detecting device
ASAHI OPTICAL CO LTD7 citations73
US4258989AMar 31, 1981
Focus detecting device
ASAHI OPTICAL CO LTD8 citations73
US4230401AOct 28, 1980
Camera focus detecting device
ASAHI OPTICAL CO LTD12 citations73
US4408853AOct 11, 1983
Focus detecting device
ASAHI OPTICAL CO LTD9 citations68
US4384770AMay 24, 1983
Focus detecting device
ASAHI OPTICAL CO LTD3 citations62
US4265520AMay 5, 1981
Focus detecting device in single lens reflex camera
ASAHI OPTICAL CO LTD6 citations62
US4253751AMar 3, 1981
Camera focus detecting device
ASAHI OPTICAL CO LTD5 citations62
US4244643AJan 13, 1981
Manual setting device in digital type electrical control camera
ASAHI OPTICAL CO LTD4 citations62
US4192589AMar 11, 1980
Abnormal operation warning apparatus for a camera
ASAHI OPTICAL CO LTD2 citations62
US4172645AOct 30, 1979
Dual purpose finder display for single lens reflex camera
ASAHI OPTICAL CO LTD6 citations62
US4171884AOct 23, 1979
Electrically controlled camera device
ASAHI OPTICAL CO LTD4 citations62
US3995286ANov 30, 1976
Electronic strobe with optionally-operable controls
ASAHI OPTICAL CO LTD5 citations62