Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6970305 | Lens barrel | Noriyasu Kotani | 2005-11-29 |
| 6819503 | Lens barrel | Noriyasu Kotani | 2004-11-16 |
| 5572373 | Photographing lens switchable between manual-focus and auto-focus modes | Hitoshi Imanari, Hideo Kanno, Tsuneo Watanabe, Shinichi Ushio | 1996-11-05 |
| 5227829 | Photographing lens switchable between manual focus and auto focus modes | Hitoshi Imanari, Hideo Kanno, Tsuneo Watanabe, Shinichi Ushio | 1993-07-13 |
| 5172154 | System camera | Yoshiharu Shiokama, Yoshinari Hamanishi | 1992-12-15 |