Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560844 | Key-holding structure of a keyboard with curved operating surface of keys | Toshiro Takamura | 1985-12-24 |
| 4560845 | Keyboard | Toshiro Takamura | 1985-12-24 |
MK
Muneharu Kakumu
Overall (All Time): #2,355,815 of 4,157,543Top 60%
2
Patents All Time