Hamanishi; Yoshinari
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hamanishi; Yoshinari.The latest application filed is for "inner focusing type telephoto zoom lens".
- Hamanishi; Yoshinari - Wako JP
- Hamanishi; Yoshinari - Tokyo JP
| Patent | Date |
|---|---|
| Inner focusing type telephoto zoom lens Grant 5,136,430 - Hamanishi August 4, 1 | 1992-08-04 |
| Lens system enabling close distance photographing Grant 5,007,720 - Hamanishi April 16, 1 | 1991-04-16 |
| Automatic focusing device for camera Grant 4,841,325 - Hoshino, deceased , et al. June 20, 1 | 1989-06-20 |
| Auto focusing light device Grant 4,804,991 - Ishizuki , et al. February 14, 1 | 1989-02-14 |
| Four-group telephoto zoom lens Grant 4,641,928 - Hamanishi February 10, 1 | 1987-02-10 |
| Photographic lens of a great aperture ratio Grant 4,621,909 - Hamanishi November 11, 1 | 1986-11-11 |
| Rear focus conversion lens Grant 4,591,234 - Hamanishi May 27, 1 | 1986-05-27 |
| Lens system capable of short distance photography Grant 4,392,724 - Hamanishi July 12, 1 | 1983-07-12 |
| Lens system for photographing objects from infinity to a very short distance Grant 4,260,223 - Hamanishi April 7, 1 | 1981-04-07 |
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