Inventor · disambiguated record
Junji Umetsu
Also filed as: UMETSU JUNJI · URANO FUMIO · YAMAMORI EIJI
10 granted patents·105 citations·filing 1976–1991
89Inventor score
Files withASAHI OPTICAL CO LTD10
Top patents by PatentIndex Score
10 records- 0187US4209247AEnvironmentally protected camera with an interchangeable drawing type finderASAHI OPTICAL CO LTD·Filed 1978·Granted Jun 24, 1980·15 cites·11 claims
- 0281US4208118AMoisture and dust proof sealing arrangement for camera body rear coverASAHI OPTICAL CO LTD·Filed 1978·Granted Jun 17, 1980·12 cites·5 claims
- 0373US5253004AControl device for cameraASAHI OPTICAL CO LTD·Filed 1991·Granted Oct 12, 1993·16 cites·24 claims
- 0473US4132472AReplaceable finder system for single-lens reflex cameraASAHI OPTICAL CO LTD·Filed 1977·Granted Jan 2, 1979·8 cites·7 claims
- 0569US4244591ADevice for protecting the operating section of a camera from water drops and dustASAHI OPTICAL CO LTD·Filed 1979·Granted Jan 13, 1981·21 cites·5 claims
- 0664US4067033ACorrecting device for cameras with automatic exposure controlASAHI OPTICAL CO LTD·Filed 1976·Granted Jan 3, 1978·6 cites·4 claims
- 0761US4212525ARelease device in a camera having a motor drive unitASAHI OPTICAL CO LTD·Filed 1978·Granted Jul 15, 1980·5 cites·3 claims
- 0859US4440403ADrop-proof and dust-proof device in rotary operation section of cameraASAHI OPTICAL CO LTD·Filed 1978·Granted Apr 3, 1984·14 cites·2 claims
- 0958US4455723ARemovable coupling device between a photographic camera and an accessoryASAHI OPTICAL CO LTD·Filed 1981·Granted Jun 26, 1984·6 cites·2 claims
- 1045US4202617AShutter release security device in motor drive cameraASAHI OPTICAL CO LTD·Filed 1978·Granted May 13, 1980·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →