Inventor · disambiguated record
Masao Jyojiki
Also filed as: JYOJIKI MASAO · NAKAMURA KAZUO
16 granted patents·206 citations·filing 1977–1996
94Inventor score
Files withASAHI OPTICAL CO LTD16
Top patents by PatentIndex Score
16 records- 0196US4349254ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1980·Granted Sep 14, 1982·46 cites·8 claims
- 0289US4352545ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1980·Granted Oct 5, 1982·26 cites·10 claims
- 0375US4627700AFocus detecting and indicating device for cameraASAHI OPTICAL CO LTD·Filed 1980·Granted Dec 9, 1986·12 cites·6 claims
- 0464US4313657ADisplay device for focus detecting and indicating device for cameraASAHI OPTICAL CO LTD·Filed 1980·Granted Feb 2, 1982·19 cites·2 claims
- 0559US4223988ACamera having a focusing deviceASAHI OPTICAL CO LTD·Filed 1978·Granted Sep 23, 1980·16 cites·13 claims
- 0655US4171155AMethod and apparatus for focusing a photographic apparatusASAHI OPTICAL CO LTD·Filed 1978·Granted Oct 16, 1979·14 cites·14 claims
- 0752US4293206AElectrically operated automatic focalizing cameraASAHI OPTICAL CO LTD·Filed 1980·Granted Oct 6, 1981·12 cites·3 claims
- 0852US4230401ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1978·Granted Oct 28, 1980·12 cites·21 claims
- 0948US4297014ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1980·Granted Oct 27, 1981·10 cites·9 claims
- 1044US4258989AFocus detecting deviceASAHI OPTICAL CO LTD·Filed 1979·Granted Mar 31, 1981·8 cites·11 claims
- 1141US4293205ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1979·Granted Oct 6, 1981·7 cites·14 claims
- 1241US4176928AFocus detecting deviceASAHI OPTICAL CO LTD·Filed 1977·Granted Dec 4, 1979·7 cites·8 claims
- 1339US4265520AFocus detecting device in single lens reflex cameraASAHI OPTICAL CO LTD·Filed 1978·Granted May 5, 1981·6 cites·16 claims
- 1437US4253751ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1979·Granted Mar 3, 1981·5 cites·13 claims
- 1533US5796421APositioning apparatus for an optical element in the form of a thin film and a scanning apparatusASAHI OPTICAL CO LTD·Filed 1996·Granted Aug 18, 1998·3 cites·37 claims
- 1632US4384770AFocus detecting deviceASAHI OPTICAL CO LTD·Filed 1981·Granted May 24, 1983·3 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →