Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11647170 | Image projection device | Tomoko Takahashi, Yuuji Wada, Yu YONEDA, Daisuke Tomita, Kunihiko Nishioka +5 more | 2023-05-09 |
| 8999501 | Urethane foam member, seal structure, toner storage container, process cartridge, image forming apparatus | Satoshi Hatori, Kaoru Yoshino, Norio Yamagami, Etsuo Kakizaki | 2015-04-07 |
| 8699898 | Apparatus and method for changing a voltage setting for an image forming apparatus | Hisashi Kikuchi, Kenji Sugiura, Akira Asaoka, Yoshiki Hozumi, Yuu Sakakibara | 2014-04-15 |
| 8699908 | Cleaning device and image forming apparatus including same | Hisashi Kikuchi, Kenji Sugiura, Akira Asaoka, Yoshiki Hozumi, Yuu Sakakibara | 2014-04-15 |
| 8682208 | Cleaning device, image forming apparatus including same, and method for mounting same | Akira Asaoka, Kenji Sugiura, Hisashi Kikuchi, Yoshiki Hozumi, Yuu Sakakibara | 2014-03-25 |
| 8483605 | Cleaning device and image forming apparatus including same | Akira Asaoka, Kenji Sugiura, Hisashi Kikuchi, Yoshiki Hozumi, Yuu Sakakibara | 2013-07-09 |
| 8428488 | Charging device, process cartridge, image forming apparatus, and toner | Haruji Mizuishi, Tokuya Ojimi, Toshio Koike, Takeshi Shintani, Yuji Arai +7 more | 2013-04-23 |
| 8315535 | Cleaning unit, process cartridge incorporating same, and image forming apparatus incorporating the cleaning unit | Takeshi Shintani, Nobuo Kuwabara, Satoshi Hatori, Daisuke Tomita, Akio Kosuge +3 more | 2012-11-20 |
| 8280293 | Image forming apparatus | Takeshi Shintani, Nobuo Kuwabara, Satoshi Hatori, Daisuke Tomita, Akio Kosuge +3 more | 2012-10-02 |
| 8204422 | Image forming apparatus and process cartridge having a charging unit | Satoshi Hatori, Yasushi Akiba, Kaoru Yoshino, Akio Kosuge, Takeshi Shintani | 2012-06-19 |
| 8204423 | Cleaning device with accumulation prevention, process cartridge, and image forming apparatus including same | Satoshi Hatori, Takeshi Shintani, Yasushi Akiba, Akio Kosuge, Kaoru Yoshino +4 more | 2012-06-19 |
| 8095059 | Image forming apparatus with coating mode | Takeshi Shintani, Satoshi Hatori, Yasushi Akiba, Kaoru Yoshino, Akio Kosuge | 2012-01-10 |
| 8000627 | Charging device, process cartridge, image forming apparatus, and toner | Haruji Mizuishi, Tokuya Ojimi, Toshio Koike, Takeshi Shintani, Yuji Arai +7 more | 2011-08-16 |
| 7995947 | Image forming apparatus, and charging device and process cartridge used in the image forming apparatus | Kaoru Yoshino, Akio Kosuge, Takeshi Shintani, Yasushi Akiba, Satoshi Hatori | 2011-08-09 |
| 7949281 | Process cartridge and image forming apparatus for effectively cleaning a charging roller at predetermined intervals | Atsushi Sampe, Takeshi Shintani, Ken Amemiya, Yoshiki Hozumi, Hiroshi Ono | 2011-05-24 |
| 7899383 | Lubricating device, lubricant applicator, and priming agent used therewith | Takeshi Shintani, Satoshi Hatori, Yasushi Akiba, Akio Kosuge, Kaoru Yoshino | 2011-03-01 |
| 7894758 | Image forming apparatus, image forming device charging device and lubricant supplying device constitution | Takeshi Shintani, Hiroshi Ono, Satoshi Hatori, Kaoru Yoshino, Akio Kosuge +3 more | 2011-02-22 |
| 7873291 | Image forming apparatus and process cartridge including charging bias adjustment control | Akio Kosuge, Takeshi Shintani, Yasushi Akiba, Satoshi Hatori, Kaoru Yoshino | 2011-01-18 |
| 7835683 | Cleaning unit, image carrying unit and image forming apparatus using the same | Takeshi Shintani, Yasushi Akiba, Satoshi Hatori, Akio Kosuge, Kaoru Yoshino | 2010-11-16 |
| 7756439 | Image forming apparatus and process cartridge used therein | Akio Kosuge, Takeshi Shintani, Yasushi Akiba, Satoshi Hatori, Kaoru Yoshino | 2010-07-13 |
| 7680446 | Cleaning device, process cartridge and image forming apparatus | Takeshi Shintani, Kaoru Yoshino, Satoshi Hatori, Hiroshi Ono, Akio Kosuge | 2010-03-16 |
| 7263308 | Cleaning member, cleaning device, charging device, transfer device, process cartridge, and image forming apparatus | Hirohmi Harada | 2007-08-28 |
| 6628912 | Charge roller for an image forming apparatus and method of producing the same | Ken Amemiya, Takatsugu Fujishiro | 2003-09-30 |
| 6088551 | Charging device for image forming apparatus | Masumi Satoh | 2000-07-11 |
| 5946529 | Image forming apparatus using a roller type charging system | Masumi Sato, Toshiyuki Uchida, Katsumi Masuda, Masato Yokoyama | 1999-08-31 |