Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888464 | Heat roll for electrophotography | Ryoichi Shibata, Tsutomu Iimura, Yasuo Sawano | 1989-12-19 |
| 4794234 | Electronic apparatus | Seio Kainoh | 1988-12-27 |
| 4733024 | Key switch | Masaji Takeshima | 1988-03-22 |
| 4692740 | Key input device | Isamu Washizuka | 1987-09-08 |