Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D556231 | Surveillance television camera | Tetsuro Kato | 2007-11-27 |
| D555691 | Surveillance television camera | Tetsuro Kato | 2007-11-20 |
| D499126 | Surveillance television camera | Tetsuro Kato | 2004-11-30 |
| 6788891 | Back focus adjusting mechanism for imaging camera | — | 2004-09-07 |
| 6783286 | Monitoring camera with detachable lens housing | Haruo Maeda, Kenichi Maruyama | 2004-08-31 |