Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6252223 | Rotary encoder having a disk with a conductive pattern | — | 2001-06-26 |
| 6021006 | Optical system having composite prism | Etsuro Nishio, Isamu Hirai | 2000-02-01 |
| 5969869 | Prism | Isamu Hirai, Etsuro Nishio | 1999-10-19 |
| 5915134 | Switching device with DX contacts for a camera | Akihiro Arai | 1999-06-22 |
| 5839010 | Switch with locking resilient tabs | Akihiro Arai | 1998-11-17 |
| 5678107 | Switching device for a camera | Akihiro Arai | 1997-10-14 |