Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840380 | Set of gold clubs | Ryota Kajita, Hirato Shimazaki | 1989-06-20 |
| 4826717 | Thermal transfer sheet | Tadao Kohashi, Hiroshi Onishi | 1989-05-02 |
| 4819010 | Thermal printer using a thermally transferable ink sheet | Tadao Kohashi, Hiroshi Onishi | 1989-04-04 |