Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8185032 | Used toner collection device and image forming apparatus | Hiroshi Ono, Tokuya Ojimi, Shuji Tanaka, Ken Amemiya, Toshio Koike +4 more | 2012-05-22 |
| 8090293 | Process cartridge and image forming apparatus employing same | Yuji Arai, Hiroyuki Nagashima, Fumihito Itoh, Hiroshi Ono, Ken Amemiya +8 more | 2012-01-03 |
| 8041280 | Lubricant applying device, process cartridge, and image forming apparatus | Toshio Koike, Hiroyuki Nagashima, Fumihito Itoh, Masahiko Shakuto, Ken Amemiya +3 more | 2011-10-18 |
| 7953362 | Image forming apparatus, process cartridge, and lubricant applicator | Yuji Arai, Hiroyuki Nagashima, Hirotaka Hatta, Hiroshi Hosokawa | 2011-05-31 |
| 7953363 | Lubricant applicator and image forming apparatus including same | Kenji Honjoh, Toshiya Satoh, Hiroyuki Nagashima, Fumihito Itoh, Hiroshi Ono +5 more | 2011-05-31 |
| 7844198 | Electrophotographic photoreceptor, photoreceptor supporting device, imaging device and process cartridge | Hiroyuki Nagashima, Shuji Tanaka, Hiroshi Ono, Ken Amemiya, Masahiko Shakuto +3 more | 2010-11-30 |
| 7603053 | Image forming apparatus | Hiroshi Hosokawa, Hiroyuki Nagashima, Hirotaka Hatta | 2009-10-13 |
| 7483648 | Process cartridge and image forming apparatus using the same | Hiroshi Hosokawa, Atushi Sampe, Hiroyuki Nagashima, Yoshiyuki Kimura, Wakako Murakami | 2009-01-27 |
| 7460810 | Image forming apparatus having a cleaning roller for a charging roller of the apparatus | Atsushi Sampe, Yoshiyuki Kimura, Hiroyuki Nagashima, Hiroshi Hosokawa, Wakako Murakami | 2008-12-02 |
| 7343132 | Image forming apparatus and process cartridge including sealable lubricating device | Yoshiyuki Kimura, Atsushi Sampe, Hiroyuki Nagashima, Hiroshi Hosokawa, Wakako Murakami | 2008-03-11 |
| 7305203 | Image forming apparatus including a process cartridge formed with a hole | Atsushi Sampe, Hiroyuki Nagashima, Yoshiyuki Kimura, Hiroshi Hosokawa, Hideki Zemba +1 more | 2007-12-04 |
| 7136610 | Image forming apparatus using installable process cartridge, method of positioning process cartridge, and process cartridge itself | Yuji Arai, Atsushi Sampe, Kiyonori Tsuda, Takeo Suda, Satoshi Hatori +11 more | 2006-11-14 |
| 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, Hiroshi Hosokawa, Hideki Zemba +7 more | 2006-04-04 |
| 6377765 | Means for independently changing a latent image carrier unit and a developing unit in an image forming unit | Hisao SHISHIDO, Tomohiro Hikita | 2002-04-23 |
| 6128463 | Image forming device | Yoshiya Matsumoto, Shigeo Nonoyama, Tetsuya Takei, Hiroshi Kera, Takefumi Takahashi +2 more | 2000-10-03 |
| 6091921 | Developing device including developer leveling member | Kunihiko Sato, Takefumi Takahashi, Sachio Sasaki | 2000-07-18 |
| 6088556 | Image forming apparatus having a toner cartridge | Yoshiki Nagasaki, Michio Shimura, Tetsuya Takei, Kiyoshi Taninaka, Morihisa Kawahara +4 more | 2000-07-11 |
| 5852757 | Electrophotographic image forming apparatus having a device for recovering residual toner | Toshio Tooda, Yoshio Yamaguchi, Mituru Sato, Haruyasu Watanabe, Akira Nagahara +5 more | 1998-12-22 |
| 5845184 | Developing unit having improved toner density control | Akira Nagahara, Yoshio Yamaguchi, Shigenobu Utaka, Toshio Tooda, Haruyasu Watanabe +4 more | 1998-12-01 |
| 5835822 | Image-forming apparatus comprising a process unit | Yoshiki Nagasaki, Michio Shimura, Tetsuya Takei, Kiyoshi Taninaka, Morihisa Kawahara +4 more | 1998-11-10 |
| 5778285 | Image forming apparatus for collecting residual toner from a drum using an AC voltage | Akira Nagahara, Sachio Sasaki, Mitsuhito Furukawa, Shigenobu Utaka, Yoshio Yamaguchi +3 more | 1998-07-07 |
| 5678143 | Image forming apparatus for collecting residual toner from a drum using an AC voltage | Akira Nagahara, Sachio Sasaki, Mitsuhito Furukawa, Shigenobu Utaka, Yoshio Yamaguchi +3 more | 1997-10-14 |