Issued Patents 2004
Showing 1–4 of 4 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, Tsukuru Kai, Hisashi Shoji | 2004-11-23 |
| 6819901 | Developing method and a developing device for image forming apparatus | Kei Yasutomi, Tsukuru Kai, Hisashi Shoji | 2004-11-16 |
| 6778805 | Image forming apparatus having a developing device with a magnet brush | Tsukuru Kai, Hisashi Shoji, Kei Yasutomi, Takeyoshi Sekine, Osamu Ariizumi | 2004-08-17 |
| 6757509 | Image forming apparatus | Hisashi Shoji, Tsukuru Kai, Kei Yasutomi, Nekka Matsuura, Hirokatsu Suzuki | 2004-06-29 |