Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8237842 | Wide-angle lens and imaging apparatus equipped therewith | — | 2012-08-07 |
| 7554753 | Fish-eye lens and imaging device | — | 2009-06-30 |
| 5082360 | Compound zoom lens | Susumu Sato, Koichi Ohshita | 1992-01-21 |
| 5050971 | Variable focal length photo-taking optical system | Susumu Sato, Koichi Ohshita | 1991-09-24 |
| 4871242 | Soft-focus optical element | Toshio Sousa, Hiroshi Wakabayashi, Hachiro Kanai, Hidenori Miyamoto | 1989-10-03 |
| 4836665 | Objective lens | — | 1989-06-06 |
| 4832470 | Inverted galilean telescope type viewfinder system capable of changing over the magnification | — | 1989-05-23 |
| 4768868 | Rear conversion lens | Daijiro Fujie | 1988-09-06 |
| 4707098 | Albada finder | — | 1987-11-17 |
| 4705364 | Wide angle lens | — | 1987-11-10 |
| 4697901 | Parallax correcting device in the finder of a camera | Hiroshi Wakabayashi | 1987-10-06 |
| 4676607 | Behind stop lens | — | 1987-06-30 |
| 4653887 | Changeable magnification inverted galilean finder | — | 1987-03-31 |
| 4606615 | Behind stop lens | — | 1986-08-19 |
| 4457596 | Behind diaphragm lens | — | 1984-07-03 |
| 4448497 | Great aperture ratio lens | — | 1984-05-15 |
| 4394073 | Compact wide angle lens | — | 1983-07-19 |