Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7072602 | Image forming apparatus and image forming unit | Satoshi Hatori, Naoto Watanabe, Takeo Suda, Yuji Arai, Tomoji Ishikawa +1 more | 2006-07-04 |
| 7062207 | Powder transport apparatus and image forming apparatus that can stabilize replenishment of powder | Atsushi Sampe, Satoshi Hatori, Yuji Arai, Takeo Suda, Tomoji Ishikawa +1 more | 2006-06-13 |
| 7024133 | Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itself | Hiroyuki Nagashima, Atsushi Sampe, Yoshiyuki Kimura, Nobuo Kuwabara, Hiroshi Hosokawa +7 more | 2006-04-04 |
| 7003255 | Image forming apparatus and process cartridge | Masanori Kawasumi, Kazuhiko Umemura, Satoshi Narumi, Hiroshi Hosokawa, Takeichi Ryuta +1 more | 2006-02-21 |
| 6522855 | Image forming apparatus and developing apparatus preventing uneven image density | Shunji Katoh, Hideo Yoshizawa, Shinji Tamaki, Junichi Terai, Tsuyoshi Imamura +3 more | 2003-02-18 |
| 6337957 | Image forming apparatus and developing device with improved self toner density control | Shinji Tamaki, Tsuyoshi Imamura, Hideo Yoshizawa, Junichi Terai, Masayuki Yamane +5 more | 2002-01-08 |
| 6198895 | Developing device with improved developer circulation and toner density control | Tsuyoshi Imamura, Shunji Katoh, Hideo Yoshizawa, Shinji Tamaki, Masayuki Yamane | 2001-03-06 |
| 6125243 | Toner replenishing and developer replacing device for a developing unit of an image forming apparatus | Hisashi Shoji, Kiyotaka Ohta, Tsukuru Kai, Nobuto Yokokawa, Satoshi Hatori | 2000-09-26 |
| D419182 | Toner cartridge | Nobuki Matsumoto | 2000-01-18 |
| 5999772 | Image forming apparatus with support member | Youtaro Kakitani, Kentaro Matsumoto, Hiroyuki Nagashima, Yong-Seog Lee | 1999-12-07 |
| 5915155 | Toner replenishing and developer replacing device for a developing unit of an image forming apparatus | Hisashi Shoji, Kiyotaka Ohta, Tsukuru Kai, Nobuto Yokokawa, Satoshi Hatori | 1999-06-22 |
| 5822664 | Developing machine which uses a developing agent including a toner and magnetic particles | Seiji Oka, Hajime Oyama, Yasushi Akiba | 1998-10-13 |
| 5805965 | Developing device for an image forming apparatus having developer distribution features | Seiji Oka, Hajime Oyama, Yasushi Akiba | 1998-09-08 |
| 5771426 | Developing device using a toner and carrier mixture | Seiji Oka, Hajime Oyama, Fumihiro Sasaki, Satoshi Mochizuki, Takahisa Kato | 1998-06-23 |
| 5771429 | Developing device capable of automatic toner content control | Hajime Oyama, Seiji Oka, Yasushi Akiba | 1998-06-23 |
| 5758241 | Developing device for an image forming apparatus | Hajime Oyama, Seiji Oka, Yasushi Akiba | 1998-05-26 |
| 5659860 | Developing device for an image forming apparatus and toner cartridge | Fumihiro Sasaki, Satoshi Mochizuki, Hidefumi Gohhara, Megumi Sakakura, Seiji Oka +2 more | 1997-08-19 |