Issued Patents All Time
Showing 25 most recent of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292711 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2025-05-06 |
| 12174582 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2024-12-24 |
| 12130581 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2024-10-29 |
| 11687029 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2023-06-27 |
| 11392079 | Process cartridge and image forming apparatus | Masato Tanabe, Keisuke Nomura, Hiroki Shimizu | 2022-07-19 |
| 11320782 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2022-05-03 |
| 11314201 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2022-04-26 |
| 11073787 | Process cartridge with a coupling member having a movable force receiving portion | Masato Tanabe, Keisuke Nomura, Hiroki Shimizu | 2021-07-27 |
| 10838356 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuki, Yoshihiro Mitsui | 2020-11-17 |
| 10712707 | Process cartridge having a positioning portion capable of positioning a driving force receiving portion of a coupling member | Masato Tanabe, Keisuke Nomura, Hiroki Shimizu | 2020-07-14 |
| 10698361 | Process cartridge having a coupling member and a coupling member supporting portion | Masato Tanabe, Keisuke Nomura, Hiroki Shimizu | 2020-06-30 |
| 10691063 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2020-06-23 |
| 10670986 | Developing apparatus and image forming apparatus | Shuichi Gofuku, Soichi Ishii | 2020-06-02 |
| 10372062 | Developing apparatus and process cartridge | Shuichi Gofuku, Soichi Ishii | 2019-08-06 |
| 10101688 | Gear unit, developing device, and manufacturing method therefor | Shuichi Gofuku, Hiroki Shimizu | 2018-10-16 |
| 10025266 | Process cartridge including a coupling member and a sheet that contacts the coupling member | Masato Tanabe, Keisuke Nomura, Hiroki Shimizu | 2018-07-17 |
| 9964921 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2018-05-08 |
| 9933725 | Developing device, process cartridge, and electrophotographic image forming apparatus | Yu Fukasawa, Kuniaki Hirukawa | 2018-04-03 |
| 9880517 | Process cartridge and image forming apparatus | Masato Tanabe, Keisuke Nomura, Hiroki Shimizu | 2018-01-30 |
| 9785086 | Developer container, developing device, process cartridge, and image forming apparatus | Shuichi Gofuku | 2017-10-10 |
| 9785087 | Developer container, developing apparatus, process cartridge, and image forming apparatus | Shuichi Gofuku | 2017-10-10 |
| 9696684 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2017-07-04 |
| D790005 | Process cartridge for image forming apparatus | Masato Tanabe, Shuichi Gofuku, Hiroki Shimizu, Kuniaki Hirukawa | 2017-06-20 |
| D790004 | Process cartridge for image forming apparatus | Masato Tanabe, Shuichi Gofuku, Hiroki Shimizu, Kuniaki Hirukawa | 2017-06-20 |
| D789446 | Process cartridge for image forming apparatus | Masato Tanabe, Shuichi Gofuku, Hiroki Shimizu, Kuniaki Hirukawa | 2017-06-13 |