Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416881 | Image forming apparatus | Shuichi Tetsuno, Shinji Katagiri, Koji An, Hiroko Yokoyama, Wataru Takahashi +2 more | 2025-09-16 |
| 11846899 | Image forming apparatus | Shuichi Tetsuno, Shinji Katagiri, Koji An, Hiroko Yokoyama, Wataru Takahashi +2 more | 2023-12-19 |
| 11294296 | Toner | Hidekazu Fumita, Noriyoshi Umeda, Satoshi Otsuji | 2022-04-05 |
| 11112712 | Toner | Hidekazu Fumita, Noriyoshi Umeda, Shohei Tsuda | 2021-09-07 |
| 11022933 | Process cartridge, image forming apparatus and cleaning apparatus | Kazunori Hashimoto, Katsuhiro Kojima, Toshiaki Takeuchi, Yasukazu Ikami, Kosuke Ikada +8 more | 2021-06-01 |
| 10976678 | Toner | Kentaro Yamawaki, Shohei Kototani, Noriyoshi Umeda, Shohei Tsuda, Satoshi Otsuji | 2021-04-13 |
| 10942465 | Toner | Shohei Kototani, Kentaro Yamawaki, Koji Abe, Masamichi Sato | 2021-03-09 |
| 10747133 | Image-forming apparatus | Yasutaka Yagi, Yuhei Terui, Noriyoshi Umeda, Shohei Kototani, Masamichi Sato | 2020-08-18 |
| 10678155 | Toner comprising a surface layer of an organosilicon polymer protrusion | Yuhei Terui, Noriyoshi Umeda, Shohei Kototani, Masamichi Sato | 2020-06-09 |
| 10620567 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi +1 more | 2020-04-14 |
| 10564594 | Image forming apparatus | Hiroki Ogino | 2020-02-18 |
| 10545422 | Toner | Kentaro Yamawaki, Akane Masumoto, Kunihiko Nakamura, Sara Yoshida, Shinsuke Mochizuki +5 more | 2020-01-28 |
| 10503090 | Toner | Tsuneyoshi Tominaga, Akane Masumoto, Toshihiko Katakura, Shiro Kuroki, Kenta Kamikura +5 more | 2019-12-10 |
| 10429757 | Toner | Sara Yoshida, Shinsuke Mochizuki, Tsuneyoshi Tominaga, Kenta Kamikura, Tsutomu Shimano +5 more | 2019-10-01 |
| 10303074 | Toner | Kentaro Yamawaki, Akane Masumoto, Kunihiko Nakamura, Sara Yoshida, Shinsuke Mochizuki +5 more | 2019-05-28 |
| 10175609 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi +1 more | 2019-01-08 |
| 10095178 | Image forming apparatus | Hiroki Ogino | 2018-10-09 |
| 9885978 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi +1 more | 2018-02-06 |
| 9772581 | Developer container configured to reduce dead space in the path of the developer | Hiroki Ogino | 2017-09-26 |
| 9665040 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani, Tetsuo Uesugi +1 more | 2017-05-30 |
| 9310717 | Developer accommodating container, developing device, process cartridge and image forming apparatus | Tetsuo Uesugi, Junichi Matsumura | 2016-04-12 |
| 9304484 | Image forming apparatus with moving light exposure units | Hiroki Ogino | 2016-04-05 |
| 9091963 | Developing device, cartridge and electrophotographic image forming apparatus | Masaaki Matsushita, Shunsuke Mizukoshi, Kohei Matsuda, Jun Miura, Takayuki Kanazawa +1 more | 2015-07-28 |
| 9063464 | Developer containing unit, process cartridge, and electrophotographic image forming apparatus | Masaki Furutani, Koji Yamaguchi, Tetsuo Uesugi, Junichi Matsumura | 2015-06-23 |
| 8958726 | Developer accommodating container, process cartridge and electrophotographic image forming apparatus | Go Shindo | 2015-02-17 |