Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11465383 | Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatus | Sosuke Yamaguchi, Kazuaki Nagaoka, Ryo Sugiyama, Minoru Nakamura | 2022-10-11 |
| 11029622 | Developer carrying member, process cartridge, and electrophotographic apparatus | Sosuke Yamaguchi, Minoru Ito, Takashi Koyanagi, Takahiro Miyazawa, Kentarou Nakamura | 2021-06-08 |
| 10831125 | Developer carrying member, process cartridge, and electrophotographic apparatus | Minoru Ito, Sosuke Yamaguchi, Takashi Koyanagi, Takahiro Miyazawa, Kentarou Nakamura | 2020-11-10 |
| 10571825 | Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatus | Kazuaki Nagaoka, Sosuke Yamaguchi, Ryo Sugiyama, Minoru Nakamura | 2020-02-25 |
| 10379460 | Electrophotographic member, process cartridge, and electrophotographic apparatus | Hideya Arimura, Masaki Yamada | 2019-08-13 |
| 10331054 | Electrophotographic member, process cartridge and electrophotographic image forming apparatus | Masaki Yamada, Takashi Koyanagi, Hideya Arimura | 2019-06-25 |
| 10067430 | Member for electrophotography, process cartridge, and electrophotographic apparatus | Hideya Arimura, Masaki Yamada | 2018-09-04 |
| 9977359 | Electrophotographic member, method of producing the same, process cartridge, and electrophotographic apparatus | Takashi Koyanagi, Masaki Yamada, Hideya Arimura | 2018-05-22 |
| 9939746 | Electrophotographic member, process cartridge, and electrophotographic apparatus | Hideya Arimura | 2018-04-10 |
| 8874007 | Developing unit and electrophotographic image forming apparatus | Kunimasa Kawamura, Minoru Nakamura, Masaki Yamada, Yasushi Katsuta | 2014-10-28 |
| 8798508 | Developing member, process cartridge, and electrophotographic apparatus | Masaki Yamada, Takashi Koyanagi, Kunimasa Kawamura, Minoru Nakamura, Yuji Sakurai | 2014-08-05 |
| 8768227 | Developing member including elastic member containing cured product of addition-curing silicone rubber mixture, processing cartridge including the developing member, and electrophotographic apparatus including the developing member | Minoru Nakamura, Kunimasa Kawamura, Masaki Yamada, Takashi Kusaba | 2014-07-01 |
| 8655238 | Developing member | Masashi Uno, Takashi Kusaba, Ryo Sugiyama | 2014-02-18 |
| 8655222 | Developing member, process cartridge, and electrophotographic image forming apparatus | Minoru Nakamura, Takashi Koyanagi, Kunimasa Kawamura, Masaki Yamada | 2014-02-18 |
| 8529806 | Process for producing regenerated elastic roller | Kunimasa Kawamura, Takashi Kusaba | 2013-09-10 |
| 8323751 | Process for producing roller for electrophotography | Kunimasa Kawamura, Yuji Sakurai | 2012-12-04 |