Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792234 | Developing device having a developer carrier including main and auxiliary magnetic poles and image forming apparatus using the same | Hiroshi Ikeguchi, Tsukuru Kai, Toshihiko Yamanaka | 2004-09-14 |
| 6778805 | Image forming apparatus having a developing device with a magnet brush | Tsukuru Kai, Nobutaka Takeuchi, Hisashi Shoji, Kei Yasutomi, Osamu Ariizumi | 2004-08-17 |
| 6728504 | Developing device using a magnet brush and image forming apparatus including the same | Osamu Ariizumi, Nobuo Takami | 2004-04-27 |
| 6701114 | Image forming apparatus and image forming process unit with developer carried on a developer carrier | Hiroshi Ikeguchi, Tsukuru Kai | 2004-03-02 |