Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D314005 | Ink ribbon cassette | Seiji Okunomiya, Yoichi Narui, Katsuya Sato, Kohichi Tomatsuri, Naohiro Ozawa +3 more | 1991-01-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D314005 | Ink ribbon cassette | Seiji Okunomiya, Yoichi Narui, Katsuya Sato, Kohichi Tomatsuri, Naohiro Ozawa +3 more | 1991-01-22 |