Inventor · disambiguated record
Yoshikazu Doi
Also filed as: DOI YOSHIKAZU
16 granted patents·212 citations·filing 1974–1984
94Inventor score
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16 records- 0190US3945713AImage rotating optical systemFUJI PHOTO OPTICAL CO LTD·Filed 1974·Granted Mar 23, 1976·23 cites·7 claims
- 0287US4107621AMicrowave signal amplifierFUJITSU LTD·Filed 1977·Granted Aug 15, 1978·33 cites·7 claims
- 0378US4472740ATelevision camera systemFUJI PHOTO OPTICAL CO LTD·Filed 1982·Granted Sep 18, 1984·27 cites·5 claims
- 0477US4598980AObjective optical system for endoscopeFUJI PHOTO OPTICAL CO LTD·Filed 1984·Granted Jul 8, 1986·34 cites·5 claims
- 0567US4164752AOptical system for color television camerasFUJI PHOTO OPTICAL CO LTD·Filed 1977·Granted Aug 14, 1979·15 cites·10 claims
- 0657US3951524AProjection lens system for motion picture projectorFUJI PHOTO OPTICAL CO LTD·Filed 1975·Granted Apr 20, 1976·16 cites·5 claims
- 0756US4149774AZoom lens systemFUJI PHOTO OPTICAL CO LTD·Filed 1977·Granted Apr 17, 1979·14 cites·5 claims
- 0851US4195912AZoom lens systemFUJI PHOTO OPTICAL CO LTD·Filed 1977·Granted Apr 1, 1980·11 cites·7 claims
- 0945US4560254AZoom lens systemFUJI PHOTO OPTICAL CO LTD·Filed 1984·Granted Dec 24, 1985·9 cites·1 claims
- 1044US3961845AZoom lens systemFUJI PHOTO OPTICAL CO LTD·Filed 1975·Granted Jun 8, 1976·8 cites·11 claims
- 1143US4589723AHolographic endoscopeFUJI PHOTO OPTICAL CO LTD·Filed 1984·Granted May 20, 1986·7 cites·4 claims
- 1242US4484799AWide angle zoom lensFUJI PHOTO OPTICAL CO LTD·Filed 1981·Granted Nov 27, 1984·8 cites·2 claims
- 1332US4245891AZoom lens system with a movable distortion-correcting elementFUJI PHOTO OPTICAL CO LTD·Filed 1978·Granted Jan 20, 1981·3 cites·4 claims
- 1431US4294521ARear stop type zoom lensFUJI PHOTO OPTICAL CO LTD·Filed 1979·Granted Oct 13, 1981·2 cites·2 claims
- 1529US4298252ARear stop type lens systemFUJI PHOTO OPTICAL CO LTD·Filed 1979·Granted Nov 3, 1981·1 cites·5 claims
- 1629US4158482AInverted telephoto type super-wide angle lensFUJI PHOTO OPTICAL CO LTD·Filed 1977·Granted Jun 19, 1979·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →