Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10030716 | Clutch mechanism with guide portion | Tooru OOKUMA, Motohiko Ueda, Yousuke Yamagami | 2018-07-24 |
| 9707830 | Dimming control device | Takehiro Miyoshi, Takashi Kondo, Masaki Kawamura | 2017-07-18 |
| 9709105 | Clutch mechanism | Tooru OOKUMA, Motohiko Ueda, Yousuke Yamagami | 2017-07-18 |
| 9586461 | Light-adjusting-panel structure | — | 2017-03-07 |
| 8469170 | Clutch mechanism and clutch system having the same | Yoshiharu Katano, Yousuke Yamagami, Motohiko Ueda, Yasuhiro Takeuchi, Haruo Kamiya | 2013-06-25 |