Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819892 | Electrophotographic image forming apparatus including air conditioning means for removing harmful substances | Yusuke Takeda, Tsukuru Kai, Satoshi Muramatsu, Masanori Suzuki, Yasuo Suzuki +1 more | 2004-11-16 |
| 6799012 | Cleaning device and image forming apparatus using the same | Masahiko Shakuto, Osamu Naruse, Naomi Sugimoto | 2004-09-28 |
| 6768886 | Image forming apparatus | Kazuyuki Shimada, Tomohiro Nakajima | 2004-07-27 |
| 6760557 | Image forming apparatus | Kazuyuki Shimada, Tomohiro Nakajima | 2004-07-06 |
| 6721523 | Charging device, image forming unit and image forming device | Kenji Sugiura, Takahiko Tokumasu, Tohru Nakano | 2004-04-13 |
| 6697588 | Image forming apparatus | Kazuyuki Shimada, Tomohiro Nakajima | 2004-02-24 |
| 6681096 | Image formation apparatus, printer, copying machine, and facsimile device | Takashi Seto, Masakazu Muranaka | 2004-01-20 |