Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855740 | Keyboard | Kenzaburou Iijima, Yoshinori Hayashi | 1989-08-08 |
TM
Toshihiro Muramatsu
Overall (All Time): #3,934,848 of 4,157,543Top 95%
1
Patents All Time