Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7035850 | Access control system | Masato Arai | 2006-04-25 |
| 7003179 | Sheet-recognizing machine | Akihiro Kawaoka, Tetsuo Machida, Tetsuro Kiyomatsu | 2006-02-21 |
| 5559932 | Printer and computer system with detachable built-in printer | Tetsuo Machida, Toshihiko Matsuda, Akihiro Kawaoka | 1996-09-24 |
| 4709231 | Shading apparatus for displaying three dimensional objects | Toru Sakaibara, Shigeo Tsujioka, Toshihisa Aoshima, Motonobu Tonomura | 1987-11-24 |