Issued Patents All Time
Showing 1–25 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429788 | Process cartridge | Kozue Uratani, Takashi Kenmoku, Koki Inoue, Tatsuya Saeki | 2025-09-30 |
| 12429785 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Shuntaro Watanabe, Taichi Sato, Kohei Makisumi, MASATADA HIROTA | 2025-09-30 |
| 12393130 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi | 2025-08-19 |
| 12111612 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Masashi Nishi | 2024-10-08 |
| 11960240 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi | 2024-04-16 |
| 11822286 | Process cartridge and electrophotographic apparatus | Takashi Kenmoku, Kozue Uratani, Koki Inoue, Tatsuya Saeki | 2023-11-21 |
| 11726414 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Masashi Nishi | 2023-08-15 |
| 11061341 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi, Takashi Anezaki, Taichi Sato, Atsushi Fujii | 2021-07-13 |
| 10948838 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Takashi Anezaki, Taichi Sato, Masashi Nishi, Atsushi Fujii | 2021-03-16 |
| 10754267 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Takashi Anezaki, Taichi Sato, Masashi Nishi, Atsushi Fujii | 2020-08-25 |
| 10656542 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method for producing electrophotographic photosensitive member | Masashi Nishi, Yuka Ishiduka, Akihiro Maruyama | 2020-05-19 |
| 10372050 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi, Michiyo Sekiya, Hiroyuki Watanabe | 2019-08-06 |
| 10095136 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Masashi Nishi | 2018-10-09 |
| 10065969 | Method for producing carboxylic acid anhydride, method for producing carboxylic imide, and method for manufacturing electrophotographic photosensitive member | Kei Tagami, Akihito Saitoh, Michiyo Sekiya, Masashi Nishi | 2018-09-04 |
| 9921498 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi, Michiyo Sekiya, Kei Tagami | 2018-03-20 |
| 9864285 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi, Michiyo Sekiya, Kei Tagami, Yuki Yamamoto | 2018-01-09 |
| 9851648 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Masashi Nishi, Michiyo Sekiya, Kei Tagami, Isao Kawata, Yuto Ito +1 more | 2017-12-26 |
| 9811011 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masashi Nishi, Michiyo Sekiya, Kei Tagami, Akihito Saitoh | 2017-11-07 |
| 9772568 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Kei Tagami, Masashi Nishi | 2017-09-26 |
| 9760030 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Kei Tagami, Masashi Nishi | 2017-09-12 |
| 9751880 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compound | Masashi Nishi, Michiyo Sekiya, Kei Tagami | 2017-09-05 |
| 9500967 | Electrophotographic photosensitive member, method for producing the same, process cartridge, and electrophotographic apparatus | Takeshi Murakami, Hiroyuki Tomono, Atsushi Okuda | 2016-11-22 |
| 9494880 | Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kazunori Noguchi, Daisuke Tanaka, Kazumichi Sugiyama, Yota Ito, Michiyo Sekiya +3 more | 2016-11-15 |
| 9477163 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compound | Masashi Nishi, Kei Tagami | 2016-10-25 |
| 9442401 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compound | Masashi Nishi, Kei Tagami | 2016-09-13 |