Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759617 | Zoom lens system | Shuji Ogino | 1988-07-26 |
| 4636040 | Zoom lens system | — | 1987-01-13 |
| 4591235 | Zoom lens system | Shuji Ogino | 1986-05-27 |
| 4516839 | Zoom lens system | — | 1985-05-14 |
| 4474459 | Optical projection system | — | 1984-10-02 |
| 4449793 | Inverted telephoto type wide angle lens system | Akiyoshi Nakamura | 1984-05-22 |
| 4448499 | Image transmitter for copying apparatus of slit exposure scanning type | — | 1984-05-15 |
| 4382662 | Inverted telephoto type wide angle lens system | Akiyoshi Nakamura | 1983-05-10 |
| 4286847 | Lightweight inverted telephoto type wide angle lens system | Akiyoshi Nakamura | 1981-09-01 |
| 4234894 | Reflecting optical system for projection television | Mitsuo Yasukuni | 1980-11-18 |