Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11500301 | Electrophotographic photosensitive member, process cartridge, and electrophotographic image forming apparatus | Hideharu Shimozawa, Kenichi Kaku, Tsutomu Nishida, Kazunori Noguchi, Akihiro Maruyama +2 more | 2022-11-15 |
| 11493853 | Electrophotographic photosensitive member, process cartridge and electrophotographic image forming apparatus | Hideharu Shimozawa, Kenichi Kaku, Tsutomu Nishida, Kazunori Noguchi, Akihiro Maruyama +2 more | 2022-11-08 |
| 11061341 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi, Taichi Sato, Atsushi Fujii, Kunihiko Sekido | 2021-07-13 |
| 10948838 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Taichi Sato, Kunihiko Sekido, Masashi Nishi, Atsushi Fujii | 2021-03-16 |
| 10754267 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kunihiko Sekido, Taichi Sato, Masashi Nishi, Atsushi Fujii | 2020-08-25 |
| 10466603 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Taichi Sato, Atsushi Fujii | 2019-11-05 |
| 10303085 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Taichi Sato, Jumpei Kuno, Kenichi Kaku, Atsushi Fujii | 2019-05-28 |
| 10216105 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kenichi Kaku, Taichi Sato, Jumpei Kuno, Atsushi Fujii | 2019-02-26 |
| 10203617 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Jumpei Kuno, Taichi Sato, Kenichi Kaku, Atsushi Fujii | 2019-02-12 |
| 10162278 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Jumpei Kuno, Kenichi Kaku, Taichi Sato, Atsushi Fujii | 2018-12-25 |
| 10152002 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kenichi Kaku, Taichi Sato, Jumpei Kuno, Atsushi Fujii | 2018-12-11 |
| 9864284 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masataka Kawahara, Hirotoshi Uesugi, Akihiro Maruyama, Hirofumi Kumoi, Masato Tanaka +6 more | 2018-01-09 |
| 9857704 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Yota Ito, Hiroyuki Tomono, Daisuke Miura, Harunobu Ogaki | 2018-01-02 |
| 9851646 | Electrophotographic apparatus and process cartridge | Hiroyuki Tomono, Daisuke Miura, Yota Ito, Harunobu Ogaki | 2017-12-26 |
| 9778581 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Yota Ito, Daisuke Miura, Hirofumi Kumoi | 2017-10-03 |
| 9753385 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Yota Ito, Daisuke Miura, Shoma Hinata, Hiroyuki Tomono, Tatsuya Yamaai +6 more | 2017-09-05 |
| 9665020 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Daisuke Miura, Yota Ito, Hirofumi Kumoi | 2017-05-30 |
| 9618861 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Atsushi Fujii, Kazuhisa Shida, Haruyuki Tsuji | 2017-04-11 |
| 9599915 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kazuhisa Shida, Haruyuki Tsuji, Atsushi Fujii, Nobuhiro Nakamura, Hiroyuki Tomono +1 more | 2017-03-21 |
| 9470989 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Hiroyuki Tomono, Haruyuki Tsuji, Atsushi Fujii, Kazuhisa Shida, Nobuhiro Nakamura +1 more | 2016-10-18 |
| 9395687 | Electrophotographic apparatus and process cartridge | Hiroyuki Tomono, Yota Ito, Daisuke Miura, Harunobu Ogaki | 2016-07-19 |
| 9274442 | Electrophotographic image forming apparatus having charge transport layer with matrix-domain structure and charging member having concavity and protrusion | Taichi Sato, Tomohito Taniguchi, Noboru Miyagawa, Takehiko Aoyama, Atsushi Uematsu +6 more | 2016-03-01 |
| 9229342 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kazuhisa Shida, Masashi Nishi, Hirofumi Kumoi, Daisuke Tanaka, Kazumichi Sugiyama | 2016-01-05 |
| 9188888 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus and method of manufacturing the electrophotographic photosensitive member | Atsushi Okuda, Shio Murai, Kazunori Noguchi, Harunobu Ogaki, Kazuhisa Shida | 2015-11-17 |
| 9164406 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Masashi Nishi, Kazuhisa Shida, Hirofumi Kumoi, Daisuke Tanaka, Kazumichi Sugiyama | 2015-10-20 |