Inventor
JYOJIKI MASAO
16 patents
Patents
16 patentsUS4349254ASep 14, 1982
Camera focus detecting device
ASAHI OPTICAL CO LTD46 citations92
US4352545AOct 5, 1982
Camera focus detecting device
ASAHI OPTICAL CO LTD26 citations81
US4627700ADec 9, 1986
Focus detecting and indicating device for camera
ASAHI OPTICAL CO LTD12 citations74
US4313657AFeb 2, 1982
Display device for focus detecting and indicating device for camera
ASAHI OPTICAL CO LTD19 citations74
US4297014AOct 27, 1981
Camera focus detecting device
ASAHI OPTICAL CO LTD10 citations74
US4293206AOct 6, 1981
Electrically operated automatic focalizing camera
ASAHI OPTICAL CO LTD12 citations74
US4223988ASep 23, 1980
Camera having a focusing device
ASAHI OPTICAL CO LTD16 citations74
US4176928ADec 4, 1979
Focus detecting device
ASAHI OPTICAL CO LTD7 citations74
US4171155AOct 16, 1979
Method and apparatus for focusing a photographic apparatus
ASAHI OPTICAL CO LTD14 citations74
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
US5796421AAug 18, 1998
Positioning apparatus for an optical element in the form of a thin film and a scanning apparatus
ASAHI OPTICAL CO LTD3 citations62
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