Issued Patents All Time
Showing 1–25 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12045006 | Electrophotographic photosensitive member | Shuhei Iwasaki, Tomohito Ishida, Nobuhiro Nakamura, Hiroyuki Watanabe, Tatsuya Yamaai +2 more | 2024-07-23 |
| 11782353 | Method for producing electrophotographic photosensitive member | Nobuhiro Nakamura, Tomohito Ishida, Shuhei Iwasaki, Hiroyuki Watanabe, Tatsuya Yamaai +2 more | 2023-10-10 |
| 11703773 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Tatsuya Ohsawa | 2023-07-18 |
| 11619888 | Electrophotographic image forming apparatus and process cartridge | Tsutomu Nishida, Tatsuya Ohsawa | 2023-04-04 |
| 11392074 | Electrophotographic photosensitive member having outer surface with first and second structure groups, the first structure group having a smaller appearance period and a lower height than the second structure group | Tomohito Ishida, Nobuhiro Nakamura, Shuhei Iwasaki, Hiroyuki Watanabe, Tatsuya Yamaai +2 more | 2022-07-19 |
| 11392050 | Process cartridge and electrophotographic apparatus | Tsutomu Nishida, Kenichi Kaku, Nobuhiro Nakamura, Hiroyuki Watanabe, Hideharu Shimozawa +3 more | 2022-07-19 |
| 11366402 | Process cartridge and electrophotographic apparatus using the same | Tsutomu Nishida, Hideharu Shimozawa, Nobuhiro Nakamura, Hiroyuki Watanabe, Kenichi Kaku +4 more | 2022-06-21 |
| 11256186 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Hideharu Shimozawa, Tsutomu Nishida, Atsushi Okuda, Kenichi Kaku, Nobuhiro Nakamura +1 more | 2022-02-22 |
| 11003102 | Electrophotographic image forming apparatus and process cartridge | Tsutomu Nishida, Hideharu Shimozawa, Nobuhiro Nakamura, Hiroyuki Watanabe | 2021-05-11 |
| 10838315 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Hideharu Shimozawa, Tsutomu Nishida, Atsushi Okuda, Nobuhiro Nakamura, Hiroyuki Watanabe | 2020-11-17 |
| 10831118 | Electrophotographic photosensitive member and method for producing electrophotographic photosensitive member | Hiroyuki Watanabe, Tsutomu Nishida, Atsushi Okuda, Hideharu Shimozawa, Nobuhiro Nakamura +3 more | 2020-11-10 |
| 10747130 | Process cartridge and electrophotographic apparatus | Atsushi Okuda, Tsutomu Nishida, Nobuhiro Nakamura, Hiroyuki Watanabe, Hideharu Shimozawa +3 more | 2020-08-18 |
| 10747131 | Electrophotographic photosensitive member and method for manufacturing the same as well as process cartridge and electrophotographic image-forming apparatus | Hiroyuki Watanabe, Tsutomu Nishida, Atsushi Okuda, Hideharu Shimozawa, Nobuhiro Nakamura +1 more | 2020-08-18 |
| 10691033 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Atsushi Okuda, Nobuhiro Nakamura, Hiroyuki Watanabe, Hideharu Shimozawa | 2020-06-23 |
| 10656542 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method for producing electrophotographic photosensitive member | Masashi Nishi, Kunihiko Sekido, Akihiro Maruyama | 2020-05-19 |
| 10642177 | Process cartridge and image-forming apparatus | Nobuhiro Nakamura, Tsutomu Nishida, Atsushi Okuda, Hiroyuki Watanabe, Hideharu Shimozawa | 2020-05-05 |
| 10558133 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Nobuhiro Nakamura, Tsutomu Nishida, Atsushi Okuda, Hiroyuki Watanabe, Hideharu Shimozawa +3 more | 2020-02-11 |
| 10558132 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Atsushi Okuda, Hiroyuki Watanabe, Hideharu Shimozawa, Nobuhiro Nakamura +6 more | 2020-02-11 |
| 10539892 | Electrophotographic photosensitive member, process cartridge, and electrophotographic image-forming apparatus | Tsutomu Nishida, Kenichi Kaku, Nobuhiro Nakamura, Hiroyuki Watanabe, Hideharu Shimozawa +1 more | 2020-01-21 |
| 10114301 | Electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus | Atsushi Okuda, Atsushi Fujii, Akihiro Maruyama, Kazunori Noguchi, Nobuhiro Nakamura +3 more | 2018-10-30 |
| 9817326 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Yuki Yamamoto, Atsushi Fujii, Atsushi Okuda, Kazunori Noguchi, Akihiro Maruyama +2 more | 2017-11-14 |
| 9811008 | Image forming method, process cartridge, and electrophotographic apparatus | Kazunori Noguchi, Yuki Yamamoto, Atsushi Okuda, Akihiro Maruyama, Atsushi Fujii +2 more | 2017-11-07 |
| 9804512 | Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Ryoichi Tokimitsu, Wataru Kitamura, Mai Murakami, Kan Tanabe | 2017-10-31 |
| 9778582 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus incorporating an improved undercoat layer | Wataru Kitamura, Ryoichi Tokimitsu, Mai Murakami, Kenichi Kaku | 2017-10-03 |
| 9726992 | Electrophotographic photosensitive member, manufacturing method of electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kazuko Sakuma, Atsushi Okuda, Kazunori Noguchi, Yuki Yamamoto, Atsushi Fujii +2 more | 2017-08-08 |