Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5199803 | Method of compressing and expanding dot-matrix character | Tadao Shimizu | 1993-04-06 |
| 5073861 | Method of and apparatus for preventing overheating of heating element | Toshiroh Suemune | 1991-12-17 |
| 4810113 | Print head driving system | Satoru Tsuchiya | 1989-03-07 |