Issued Patents 2004
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823163 | Image forming apparatus including an electric field having an oscillation component between an image carrier and a developer carrier | Naomi Sugimoto, Hisashi Shoji, Nobutaka Takeuchi | 2004-11-23 |
| 6819901 | Developing method and a developing device for image forming apparatus | Kei Yasutomi, Hisashi Shoji, Nobutaka Takeuchi | 2004-11-16 |
| 6819892 | Electrophotographic image forming apparatus including air conditioning means for removing harmful substances | Yasushi Nakazato, Yusuke Takeda, Satoshi Muramatsu, Masanori Suzuki, Yasuo Suzuki +1 more | 2004-11-16 |
| 6792234 | Developing device having a developer carrier including main and auxiliary magnetic poles and image forming apparatus using the same | Hiroshi Ikeguchi, Takeyoshi Sekine, Toshihiko Yamanaka | 2004-09-14 |
| 6782225 | Image forming apparatus having plurality of developing sections with particular magnetic flux density | Hisashi Shoji | 2004-08-24 |
| 6778805 | Image forming apparatus having a developing device with a magnet brush | Nobutaka Takeuchi, Hisashi Shoji, Kei Yasutomi, Takeyoshi Sekine, Osamu Ariizumi | 2004-08-17 |
| 6757511 | Image forming apparatus and method using a magnetic toner brush | Naomi Sugimoto | 2004-06-29 |
| 6757509 | Image forming apparatus | Hisashi Shoji, Kei Yasutomi, Nekka Matsuura, Nobutaka Takeuchi, Hirokatsu Suzuki | 2004-06-29 |
| 6721516 | Image forming apparatus | Katsuhiro Aoki, Hajime Oyama, Osamu Ariizumi, Hisashi Shoji, Takashi Hodoshima +1 more | 2004-04-13 |
| 6701114 | Image forming apparatus and image forming process unit with developer carried on a developer carrier | Takeyoshi Sekine, Hiroshi Ikeguchi | 2004-03-02 |