Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862193 | Thermal recording head | Toshihiko Gotoh, Kohtarou Tanno | 1989-08-29 |
| 4851097 | Apparatus for repairing a pattern film | Anton Yasaka, Yoshitomo Nakagawa, Mitsuyoshi Sato, Sumio Sasaki | 1989-07-25 |