Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812022 | Zoom lens | — | 1989-03-14 |
| 4792215 | Zoom lens | — | 1988-12-20 |
| 4660940 | Small-sized wide-angle lens | Ryota Ogawa | 1987-04-28 |
| 4545654 | Bright telephoto lens | — | 1985-10-08 |
| 4490017 | High-speed zoom lens | Sadao Okudaira | 1984-12-25 |
| 4451125 | Behind aperture lens system | — | 1984-05-29 |