Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5526082 | Automatic visibility regulator for a camera viewfinder | — | 1996-06-11 |
| 4953958 | Variable magnification duplicator lens system | Toshiaki Katsuma | 1990-09-04 |
| 4907865 | Variable magnification duplicator lens system | Aiko Ichiki | 1990-03-13 |
| 4514049 | Zoom lens system for finite conjugate distances | — | 1985-04-30 |