Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782234 | Image forming apparatus | — | 2004-08-24 |
| 6728504 | Developing device using a magnet brush and image forming apparatus including the same | Osamu Ariizumi, Takeyoshi Sekine | 2004-04-27 |