Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696543 | Recording head which detects temperature of an element chip and corrects for variations in that detected temperature, and cartridge and apparatus having such a head | Ryoichi Koizumi | 1997-12-09 |
| 5608435 | Method for producing ink jet head having a plated bump-shaped electrode | Yutaka Koizumi | 1997-03-04 |