Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653870 | Compact vari-focal photographic lens system | Masaki Imaizumi, Toru Fujii | 1987-03-31 |
| 4533220 | Indicating device for indicating data within the visual field of microscope | Hiroyuki Kurita, Yuko Kobayashi, Shinichi Dosaka, Juro Kikuchi, Kenichi Harada | 1985-08-06 |
| 4452512 | Wide angle zoom lens system | — | 1984-06-05 |
| 4303313 | Photographic lens system | Toshihiro Imai | 1981-12-01 |
| 4291952 | Gauss type lens system | Toru Fujii | 1981-09-29 |
| 4234243 | Reducing lens system | — | 1980-11-18 |