Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8948647 | Belt device and image forming apparatus incorporating same having a cleaning device which cleans utilizing different polarities | Kenji Sugiura, Naomi Sugimoto, Hisashi Kikuchi, Yoshiki Hozumi | 2015-02-03 |
| 8731431 | Belt device and image forming apparatus incorporating same having a cleaning device which cleans utilizing different polarities | Kenji Sugiura, Naomi Sugimoto, Hisashi Kikuchi, Yoshiki Hozumi | 2014-05-20 |
| 8600256 | Cleaning device and image forming apparatus including same | Yuu Sakakibara, Kenji Sugiura, Naomi Sugimoto, Hisashi Kikuchi, Yoshiki Hozumi | 2013-12-03 |
| 8548350 | Cleaning device and image forming apparatus | Yoshiki Hozumi, Kenji Sugiura, Naomi Sugimoto, Hisashi Kikuchi, Yuu Sakakibara | 2013-10-01 |
| 8437657 | Cleaning apparatus and image forming apparatus | Hisashi Kikuchi, Kenji Sugiura, Naomi Sugimoto, Yoshiki Hozumi, Yuu Sakakibara | 2013-05-07 |
| 8433213 | Cleaning device and image forming apparatus | Yoshiki Hozumi, Kenji Sugiura, Naomi Sugimoto, Hisashi Kikuchi, Yuu Sakakibara | 2013-04-30 |
| 8326174 | Cleaning unit for an electrophotographic image forming apparatus having a polarity control member | Hidetoshi Yano, Kenji Sugiura, Naomi Sugimoto, Hiroki Nakamatsu | 2012-12-04 |
| 8280295 | Cleaning device, image forming apparatus including the device, and process cartridge including the device | Hidetoshi Yano, Naomi Sugimoto, Kenji Sugiura, Yasuyuki Yamashita | 2012-10-02 |
| 8190077 | Cleaning device and image forming apparatus | Hidetoshi Yano, Kenji Sugiura, Naomi Sugimoto, Hiroki Nakamatsu | 2012-05-29 |
| 8041281 | Cleaning device, image forming apparatus, and process cartridge | Naomi Sugimoto, Hidetoshi Yano, Kenji Sugiura, Yasuyuki Yamashita | 2011-10-18 |
| 8027628 | Cleaning device, process cartridge, and image forming apparatus | Kazuhiko Watanabe, Masahiko Shakuto, Hidetosi Yano | 2011-09-27 |
| 8019268 | Polarity controlling device, and cleaner and image forming apparatus using the polarity controlling device | Hiroki Nakamatsu, Kenji Sugiura, Naomi Sugimoto, Hidetoshi Yano | 2011-09-13 |
| 7929897 | Cleaning unit, process cartridge, and image forming apparatus using the same | Naomi Sugimoto, Hidetoshi Yano, Kenji Sugiura, Yasuyuki Yamashita | 2011-04-19 |
| 7903995 | Cleaning device, image forming apparatus, and process cartridge | Hiroki Nakamatsu, Kenji Sugiura, Naomi Sugimoto, Hidetoshi Yano | 2011-03-08 |
| 7817954 | Cleaning unit, image carrier unit including same, and image forming apparatus including same | Hidetoshi Yano, Naomi Sugimoto, Kenji Sugiura, Hiroki Nakamatsu | 2010-10-19 |
| 7809321 | Cleaning device, process cartridge and image forming apparatus | Hidetoshi Yano, Kenji Sugiura, Naomi Sugimoto, Yasayuki Yamashita | 2010-10-05 |
| 7620357 | Image forming apparatus with obtuse-edge cleaning blade | Masahiko Shakuto, Hidetoshi Yano, Kazuhiko Watanabe | 2009-11-17 |
| 7610008 | Cleaning device, and process unit and image forming apparatus including the cleaning device | Kazuhiko Watanabe, Masahiko Shakuto, Hidetoshi Yano | 2009-10-27 |
| 7415236 | Cleaning unit, process cartridge, and image-forming apparatus | Tohru Nakano, Masanori Horike, Masahiko Katoh, Masahiko Shakuto | 2008-08-19 |
| 7415238 | Cleaning device, process cartridge, and image forming apparatus that include a blade that is pressed against a surface of a rotating member at a surface pressure of 2.0 MPa or more | Kazuhiko Watanabe, Masahiko Shakuto, Hidetosi Yano | 2008-08-19 |
| 7369807 | Cleaner, and process cartridge and image forming apparatus using the cleaner | Hidetoshi Yano, Masahiko Shakuto, Kazuhiko Watanabe | 2008-05-06 |
| 7184699 | Cleaning blade for image formation apparatus | Masahiko Shakuto, Hidetoshi Yano, Kazuhiko Watanabe | 2007-02-27 |
| 7123872 | Cleaning device and method, image forming apparatus, and process cartridge | Masahiko Shakuto, Tohru Nakano, Masanori Horike, Masahiko Katoh | 2006-10-17 |
| 7062212 | Cleaning apparatus, image forming apparatus, and process cartridge | Tohru Nakano, Masanori Horike | 2006-06-13 |
| 6987944 | Cleaning device and image forming apparatus using the cleaning device | Masahiko Shakuto, Yasushi Nakazato, Naomi Sugimoto, Takahiko Tokumasu, Kenji Sugiura +1 more | 2006-01-17 |