Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11480850 | Optical unit | Koji Sawanobori, Kazuo Shikama, Kenzo Imai, Nobuaki Watanabe | 2022-10-25 |
| 10921688 | Imaging optical apparatus | Kazuo Shikama, Kenzo Imai, Nobuaki Watanabe, Koji Sawanobori | 2021-02-16 |
| 10816875 | Blade drive device | Kenzo Imai, Kazuo Shikama, Longji Bai, Nobuaki Watanabe | 2020-10-27 |
| 10788731 | Blade drive device | Kazuo Shikama, Kenzo Imai, Longji Bai, Nobuaki Watanabe | 2020-09-29 |
| 10754226 | Blade drive device | Koji Sawanobori, Kazuo Shikama, Kenzo Imai, Nobuaki Watanabe | 2020-08-25 |