Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6306538 | Portable information device | Asao Saitoh, Yuichi Kato, Yoshikazu Koganei | 2001-10-23 |
| 6060789 | Power supply switching circuit for portable equipment | — | 2000-05-09 |
| 5289209 | Printing head for ink-jet printer | Naomichi Suzuki, Toyoji Asahina, Hiroshi Ogawa, Hisato Hiraishi, Yoshihiko Yanagawa +1 more | 1994-02-22 |