Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334737 | Zoom lens capable of macro-photography | Tsutomu Mitsuishi | 1982-06-15 |
| 4334746 | Photographic lens barrel | Hideshi Naito | 1982-06-15 |
| 4332444 | Photographic lens capable of photographing the magnifications | Hideshi Naito | 1982-06-01 |