Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881831 | Printer | Yoshikazu Tsuru, Toshiharu Kitagawa, Yoshikazu Nomura | 1989-11-21 |
| 4797690 | Ribbon feed mechanism | Yoshikazu Tsuru, Masaharu Ushihara, Taichi Itoh, Masumi Tanaka | 1989-01-10 |