Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11320756 | Electrophotographic apparatus, process cartridge, and cartridge set | Shohei Kototani, Noriyoshi Umeda, Tsuneyoshi Tominaga, Shohei Tsuda, Kazuhiro Yamauchi | 2022-05-03 |
| 10585370 | Charging member, process cartridge, and electrophotographic image forming apparatus | Hidekazu Matsuda | 2020-03-10 |
| 10025216 | Charging member with electro-conductive elastic layer having exposed bowl-shaped resin particles, process cartridge and electrophotographic apparatus | Atsushi Uematsu, Tomohito Taniguchi, Masahiro Watanabe, Taichi Sato, Takehiko Aoyama | 2018-07-17 |
| 9678452 | Roller for electrophotography, process cartridge, and image-forming apparatus | Masahiro Watanabe, Tomohito Taniguchi, Taichi Sato, Takehiko Aoyama, Takeshi Yoshidome +1 more | 2017-06-13 |
| 9632446 | Charging member, process cartridge, and electrophotographic image forming apparatus | Hidekazu Matsuda | 2017-04-25 |
| 9599914 | Electrophotographic member having bow-shaped resin particles defining concavity and protrusion at surface thereof | Atsushi Uematsu, Tomohito Taniguchi, Masahiro Watanabe, Taichi Sato, Takehiko Aoyama +1 more | 2017-03-21 |
| 9335650 | Image forming apparatus and process cartridge utilizing a porous charging member | Takehiko Aoyama, Tomohito Taniguchi, Taichi Sato, Atsushi Uematsu, Masahiro Watanabe +1 more | 2016-05-10 |
| 9304429 | Charging member, process cartridge, and electrophotographic apparatus | Tomohito Taniguchi, Masahiro Watanabe, Taichi Sato, Takehiko Aoyama, Atsushi Uematsu | 2016-04-05 |
| 9291936 | Image-forming apparatus with electro-conductive resin layer having resin particles and process cartridge | Tomohito Taniguchi, Takehiko Aoyama, Taichi Sato, Masahiro Watanabe, Atsushi Uematsu +1 more | 2016-03-22 |
| 9274442 | Electrophotographic image forming apparatus having charge transport layer with matrix-domain structure and charging member having concavity and protrusion | Taichi Sato, Tomohito Taniguchi, Takehiko Aoyama, Atsushi Uematsu, Masahiro Watanabe +6 more | 2016-03-01 |
| 9274496 | Electrophotographic process cartridge and electrophotographic apparatus | Satoshi Koide, Takehiko Aoyama, Daisuke Tanaka | 2016-03-01 |
| 9158213 | Charging member, process cartridge and electrophotographic apparatus | Tomohito Taniguchi, Takehiko Aoyama, Taichi Sato, Satoshi Koide, Daisuke Tanaka | 2015-10-13 |
| 9098006 | Roller member for electrophotography, process cartridge and electrophotographic apparatus | Atsushi Uematsu, Taichi Sato | 2015-08-04 |