Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4588266 | Filter device for reflex optical system zoom lens | — | 1986-05-13 |
| 4564264 | Floating lens extending mechanism | — | 1986-01-14 |
| 4511221 | Reflex zoom lens having aperture scale | — | 1985-04-16 |
| 4445756 | Reflex zoom lens barrel | — | 1984-05-01 |
| 4440484 | Camera lens barrel having retractable movable contacts | Yasuyuki Haneishi | 1984-04-03 |
| 4420239 | Exchange mount with data transmitting electrical contacts | Haneishi Yasuyuki | 1983-12-13 |
| 4346967 | Zoom lens barrel for macrophotographing | Tetsuo Sekiguchi | 1982-08-31 |
| 4314749 | Lens mount barrel for photographing with flash lamp | — | 1982-02-09 |
| 4284330 | Advance mechanism for close-up lens | — | 1981-08-18 |
| 4227791 | Lens barrel for flash photography | — | 1980-10-14 |