Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D303955 | Pocket computer | Hajime Shiozawa | 1989-10-10 |
| D303523 | Portable computer | Hajime Shiozawa, Ken Kimata, Kouki Fukuda, Kuniyasu Matsumoto | 1989-09-19 |
KK
Keiichi Koyama
Overall (1989): #22,412 of 140,708Top 20%
2
Patents 1989