Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162813 | Method of and device for driving thermal head in printer | Toshiharu Yumoto | 1992-11-10 |
| 5006865 | Method of recording gradation image in thermal printer | — | 1991-04-09 |