Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11112734 | Belt device, belt regulator, roller unit, and image forming apparatus | Naohiro Kumagai, Masanari Fujita, Katsuya Kawagoe, Masaharu Furuya, Yoshiki Hozumi | 2021-09-07 |
| 10955771 | Belt control device and image forming apparatus incorporating same | Naohiro Kumagai, Masanari Fujita, Katsuya Kawagoe, Masaharu Furuya, Yoshiki Hozumi | 2021-03-23 |
| 10281848 | Image forming apparatus and image forming method | Yuuji Wada, Naoto Kochi, Kazuki Yogosawa, Takahiro Suzuki, Shinya Tanaka +8 more | 2019-05-07 |
| 10185255 | Image forming apparatus and image forming method for controlling a secondary transfer bias according to recording sheet type | Naoto Kochi, Hirokazu Ishii, Seiichi Kogure, Naohiro Kumagai, Kenji Sugiura +6 more | 2019-01-22 |
| 9042779 | Transfer belt device and image forming apparatus including the same | Seiichi Kogure, Katsuhito Haruno, Kazuki Yogosawa | 2015-05-26 |
| 8467709 | Image forming apparatus having a movably supported transfer belt detector | Seiichi Kogure, Katsuhito Haruno, Masakazu Imai | 2013-06-18 |
| 8457536 | Transfer device and image forming apparatus including same | Masakazu Imai, Katsuhito Haruno, Seiichi Kogure | 2013-06-04 |
| 8326174 | Cleaning unit for an electrophotographic image forming apparatus having a polarity control member | Osamu Naruse, Hidetoshi Yano, Kenji Sugiura, Naomi Sugimoto | 2012-12-04 |
| 8190077 | Cleaning device and image forming apparatus | Osamu Naruse, Hidetoshi Yano, Kenji Sugiura, Naomi Sugimoto | 2012-05-29 |
| 8019268 | Polarity controlling device, and cleaner and image forming apparatus using the polarity controlling device | Kenji Sugiura, Naomi Sugimoto, Osamu Naruse, Hidetoshi Yano | 2011-09-13 |
| 7903995 | Cleaning device, image forming apparatus, and process cartridge | Kenji Sugiura, Naomi Sugimoto, Osamu Naruse, Hidetoshi Yano | 2011-03-08 |
| 7817954 | Cleaning unit, image carrier unit including same, and image forming apparatus including same | Hidetoshi Yano, Osamu Naruse, Naomi Sugimoto, Kenji Sugiura | 2010-10-19 |