Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8094372 | Telescope and binocular body member | Masanobu Kaneko, Satoshi Arai, Masashi Tanaka | 2012-01-10 |
| 4709997 | Zoom lens | — | 1987-12-01 |
| 4650295 | Wide angle and variable magnification lens system for finite distance | — | 1987-03-17 |
| 4560243 | Projection lens | — | 1985-12-24 |
| 4449791 | Three-group zoom lens | Kiyoshi Hayashi | 1984-05-22 |