Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D503944 | Video magnifier | Tetsuro Kato | 2005-04-12 |
| D499125 | Surveillance television camera | Tetsuro Kato | 2004-11-30 |
| D497914 | Image scanner | Tetsuro Kato | 2004-11-02 |
| D488828 | Image pickup apparatus | Tetsuro Kato | 2004-04-20 |
| D487764 | Surveillance television camera | Tetsuro Kato | 2004-03-23 |
| D476658 | Image scanner | Tetsuro Kato | 2003-07-01 |
| D476008 | Image scanner | Tetsuro Kato | 2003-06-17 |
| D454570 | Image scanner | Tetsuro Kato | 2002-03-19 |
| D454351 | Image scanner | Tetsuro Kato | 2002-03-12 |
| D446801 | Surveillance camera body | Tetsuro Kato | 2001-08-21 |
| D442982 | Surveillance camera body | Tetsuro Kato | 2001-05-29 |
| D438849 | Monitor television | Tetsuro Kato | 2001-03-13 |
| D435578 | Overhead projector | Kazuhiro Sukenari | 2000-12-26 |
| D433683 | Image pickup apparatus | Tetsuro Kato | 2000-11-14 |
| D430888 | Surveillance camera | Tetsuro Kato | 2000-09-12 |
| D426239 | Image scanner | — | 2000-06-06 |
| D423472 | Image input equipment | — | 2000-04-25 |
| D420691 | Projector | — | 2000-02-15 |
| D416272 | Surveillance television camera | — | 1999-11-09 |
| D415147 | Small sized monitor television | — | 1999-10-12 |
| D410020 | Projector | — | 1999-05-18 |
| 5718405 | Cup holder | — | 1998-02-17 |
| 5107949 | Motorcycle | Teishiroh Gotoh, Ikuo Hara, Makoto Kitagawa, Hiroyuki Takeuchi | 1992-04-28 |