Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778805 | Image forming apparatus having a developing device with a magnet brush | Tsukuru Kai, Nobutaka Takeuchi, Hisashi Shoji, Kei Yasutomi, Takeyoshi Sekine | 2004-08-17 |
| 6728504 | Developing device using a magnet brush and image forming apparatus including the same | Takeyoshi Sekine, Nobuo Takami | 2004-04-27 |
| 6721516 | Image forming apparatus | Katsuhiro Aoki, Tsukuru Kai, Hajime Oyama, Hisashi Shoji, Takashi Hodoshima +1 more | 2004-04-13 |