Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12306573 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Kazuhiko Kanno | 2025-05-20 |
| 12287601 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2025-04-29 |
| 12222673 | Image forming apparatus and process cartridge including protrusion to receive a force for moving developing roller | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2025-02-11 |
| 12050432 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2024-07-30 |
| 11960237 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Kazuhiko Kanno | 2024-04-16 |
| 11754970 | Process cartridge having a protrusion with a surface configured to receive a force to move a frame of the process cartridge | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2023-09-12 |
| 11614710 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2023-03-28 |
| 11599058 | Image forming apparatus and process cartridge | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2023-03-07 |
| 11520284 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Kazuhiko Kanno | 2022-12-06 |
| 11385593 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2022-07-12 |
| 11156954 | Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2021-10-26 |
| 11112751 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2021-09-07 |
| 10996623 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Kazuhiko Kanno | 2021-05-04 |
| 10901365 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2021-01-26 |
| 10712708 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Kazuhiko Kanno | 2020-07-14 |
| 10705480 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2020-07-07 |
| 10591868 | Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2020-03-17 |
| 10401788 | Image forming apparatus including a movable engageable spacing member and process cartridge including a force receiving portion | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2019-09-03 |
| 10228652 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Kazuhiko Kanno | 2019-03-12 |
| 10168664 | Process cartridge including protrusion to receive a force for moving a developer roller | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2019-01-01 |
| 10139777 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Kazuhiko Kanno, Masatoshi Yamashita | 2018-11-27 |
| 10067444 | Remanufacturing method of developer accommodating unit | Yuta Isobe, Takashi Kase, Kouki Yano, Takahiro Ikeda, Yusuke Usui +5 more | 2018-09-04 |
| 9910387 | Remanufacturing method of developer accommodating unit | Yuta Isobe, Takashi Kase, Kouki Yano, Takahiro Ikeda, Yusuke Usui +5 more | 2018-03-06 |
| 9891583 | Remanufacturing method of developer accommodating unit | Noritomo Yamaguchi, Yuichi Fukui, Jun Miura | 2018-02-13 |
| 9836020 | Process cartridge with force receiving portion configured to receive a force to move a developing roller | Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Yosuke Kashiide | 2017-12-05 |