Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11531285 | Charging roller with polyrotaxane | — | 2022-12-20 |
| 11448996 | Imaging system including image carrier and coating roller to lubricate image carrier | Yoichi Yoshida, Koichiro Takashima | 2022-09-20 |
| 10761448 | Charging roller with curved roller surface | — | 2020-09-01 |
| 10599062 | Charging member | — | 2020-03-24 |
| 10520845 | Charging member for electrophotographic imaging apparatus | — | 2019-12-31 |
| 10488778 | Charging roller with curved roller surface | — | 2019-11-26 |
| 9703226 | Charging member | — | 2017-07-11 |
| 9556359 | Method of producing member for electrophotography | Noriko Suzumura, Noriyuki Doi, Hiroki Masu, Masataka Kodama, Masahiro Kurachi | 2017-01-31 |
| 9372428 | Charging member and method for manufacturing the same | Noriko Nagamine, Yuya Tomomizu | 2016-06-21 |
| 9081321 | Charging member and electrophotographic apparatus | Masataka Kodama, Taichi Sato, Noriko Suzumura, Noriyuki Doi, Masahiro Kurachi +1 more | 2015-07-14 |
| 8870728 | Charging member, process cartridge, and electrophotographic apparatus | Yoko Kuruma, Noriko Nagamine | 2014-10-28 |
| 8755714 | Charging member, process cartridge and electrophotographic apparatus | Noriko Nagamine, Yuya Tomomizu | 2014-06-17 |
| 8523748 | Charging member and process for its production | Noriko Nagamine | 2013-09-03 |
| 8526857 | Charging member, process for its production, process cartridge and electrophotographic apparatus | Yuya Tomomizu, Masataka Kodama, Noriko Suzumura, Hiroki Masu | 2013-09-03 |
| 8501325 | Charging member, process cartridge, and electrophotographic apparatus | Yuya Tomomizu, Noriko Nagamine | 2013-08-06 |
| 8503911 | Charging member and method of producing the member, process cartridge, and electrophotographic image-forming apparatus | Noriko Suzumura, Masataka Kodama, Yuya Tomomizu, Hiroki Masu | 2013-08-06 |
| 8469867 | Charging member, process cartridge, and electrophotographic apparatus | Noriko Nagamine, Yuya Tomomizu | 2013-06-25 |
| 8447214 | Charging member and process for its production | Yuya Tomomizu, Noriko Nagamine | 2013-05-21 |
| 8401425 | Charging member, process cartridge, and electrophotographic apparatus | Noriko Nagamine | 2013-03-19 |
| 8277947 | Charging member, process cartridge, and electrophotographic apparatus | Hiroshi Mayuzumi | 2012-10-02 |
| 8227087 | Charging member, process cartridge, and electrophotographic apparatus | Hiroshi Mayuzumi | 2012-07-24 |
| 8092358 | Charging member, process cartridge and electrophotographic apparatus | Yoko Kuruma, Noriko Nagamine | 2012-01-10 |
| 8064803 | Charging member, process cartridge, and electrophotographic apparatus | Yoko Kuruma, Hisao Kato, Toshiro Suzuki, Jun Murata | 2011-11-22 |
| 7962068 | Charging member, process cartridge and electrophotographic apparatus | Hisao Kato, Toshinari Miura, Toshiro Suzuki, Takumi Furukawa, Michitaka Kitahara +5 more | 2011-06-14 |
| 7693457 | Charging member, process cartridge, and electrophotographic apparatus | Yoko Kuruma, Hisao Kato, Toshinari Miura, Toshiro Suzuki, Takumi Furukawa +5 more | 2010-04-06 |