Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D314005 | Ink ribbon cassette | Seiji Okunomiya, Yoichi Narui, Katsuya Sato, Masahi Yoshida, Naohiro Ozawa +3 more | 1991-01-22 |
| 4422109 | Magnetic recording and reproducing apparatus automatically adjustable to each individual magnetic tape | Tohru Sampei, Naoya Fujita, Shigemitsu Higuchi, Masamichi Yamada | 1983-12-20 |