Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4661421 | Method for preparing a magnetic recording medium | Tadashi Ishikuro, Kunihiko Honda, Ryuji Shirahata | 1987-04-28 |
| 4446789 | Dot matrix printer | Michio Matsumoto, Masao Kitamura, Takeshi Ohshima | 1984-05-08 |