Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D303523 | Portable computer | Hajime Shiozawa, Kouki Fukuda, Kuniyasu Matsumoto, Keiichi Koyama | 1989-09-19 |
| D299464 | Pocket computer | Hajime Shiozawa, Kazumi Osaka | 1989-01-17 |
| D298624 | Computer | Hajime Shiozawa, Kazumi Osaka | 1988-11-22 |
| D297937 | Printer interface for computer | Hajime Shiozawa, Kazumi Osaka | 1988-10-04 |
| D296554 | Floppy disc drive | Hajime Shiozawa, Kazumi Osaka | 1988-07-05 |