Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681493 | Multi-level energy saving temperature controller for image forming fixing unit | Ken Yoshizuka, Yoshiaki Tabata | 1997-10-28 |
| 5669037 | Toner concentration contoller | — | 1997-09-16 |
| 5655207 | Image forming apparatus provided with a tab sheet inserting function | Ken Yoshizuka | 1997-08-05 |
| 5602628 | Image forming apparatus with automatic voltage control | Yoshiaki Tabata | 1997-02-11 |