Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D303955 | Pocket computer | Keiichi Koyama | 1989-10-10 |
| D303523 | Portable computer | Ken Kimata, Kouki Fukuda, Kuniyasu Matsumoto, Keiichi Koyama | 1989-09-19 |
| D299464 | Pocket computer | Kazumi Osaka, Ken Kimata | 1989-01-17 |