Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826717 | Thermal transfer sheet | Tadao Kohashi, Hiroshi Esaki | 1989-05-02 |
| 4819010 | Thermal printer using a thermally transferable ink sheet | Tadao Kohashi, Hiroshi Esaki | 1989-04-04 |