Issued Patents 2020
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10831126 | Developing roller having crown-shaped electro-conductive layer with outer surface providing electrically insulating first regions adjacent to second regions having higher conductivity | Kenta Matsunaga, Minoru Nakamura, Ryo Sugiyama, Masashi Uno, Fumihiko Utsuno | 2020-11-10 |
| 10831127 | Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatus | Fumihiko Utsuno, Minoru Nakamura, Ryo Sugiyama | 2020-11-10 |
| 10712684 | Developing roller, electrophotographic process cartridge and electrophotographic image forming apparatus | Kazuhito Wakabayashi, Ryo Sugiyama, Kunimasa Kawamura, Minoru Nakamura | 2020-07-14 |
| 10705449 | Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatus | Kazutoshi Ishida, Minoru Nakamura, Ryo Sugiyama | 2020-07-07 |
| 10678161 | Electrophotographic member having elastic layer with elastic modulus of 0.5 to 3.0 MPA and coating layer with elastic modulus of 5.0 to 100 MPA | Seiji Tsuru, Noriyuki Doi, Ryo Sugiyama, Minoru Nakamura | 2020-06-09 |
| 10571825 | Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatus | Shohei Urushihara, Sosuke Yamaguchi, Ryo Sugiyama, Minoru Nakamura | 2020-02-25 |