Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978109 | Image forming apparatus | Hisashi Shoji, Tsukuru Kai, Nekka Matsuura, Nobutaka Takeuchi, Hirokatsu Suzuki | 2005-12-20 |
| 6819901 | Developing method and a developing device for image forming apparatus | Tsukuru Kai, Hisashi Shoji, Nobutaka Takeuchi | 2004-11-16 |
| 6800410 | Image forming apparatus | Yasuo Suzuki, Nozomu Tamoto | 2004-10-05 |
| 6778805 | Image forming apparatus having a developing device with a magnet brush | Tsukuru Kai, Nobutaka Takeuchi, Hisashi Shoji, Takeyoshi Sekine, Osamu Ariizumi | 2004-08-17 |
| 6757509 | Image forming apparatus | Hisashi Shoji, Tsukuru Kai, Nekka Matsuura, Nobutaka Takeuchi, Hirokatsu Suzuki | 2004-06-29 |
| 6654579 | Image forming apparatus including diamond-like or amorphous structure containing hydrogen surface protection layer | Masahiko Shakuto, Hirokatsu Suzuki, Nobutaka Takeuchi, Toshihiko Baba | 2003-11-25 |
| 6625409 | Image forming apparatus having a diamond-like structure surface protection layer on a photoconductive layer | Masahiko Shakuto, Hirokatsu Suzuki, Nobutaka Takeuchi, Toshihiko Baba | 2003-09-23 |
| 6597885 | Image forming apparatus having a developing device with a magnet brush | Tsukuru Kai, Nobutaka Takeuchi, Hisashi Shoji, Takeyoshi Sekine, Osamu Ariizumi | 2003-07-22 |
| 6366751 | Image forming apparatus including preselected range between charge injection layer and voltage potential | Masahiko Shakuto, Tsukuru Kai, Hidetoshi Yano, Takahiko Tokumasu, Hiroshi Ikuno +3 more | 2002-04-02 |
| 5999773 | Image forming apparatus and cleaning method for contact-charging member | Hidetoshi Yano, Masako Yoshii, Nobuto Yokokawa | 1999-12-07 |
| 5740494 | Configured to enhance toner collecting efficiency and toner redepositing efficiency | Hisashi Shoji, Osamu Endo, Masako Yoshii, Hidetoshi Yano, Yasushi Nakazato +1 more | 1998-04-14 |