Issued Patents All Time
Showing 1–25 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12105466 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2024-10-01 |
| 11841673 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2023-12-12 |
| 11579563 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2023-02-14 |
| 11460802 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2022-10-04 |
| 11215949 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2022-01-04 |
| 10976696 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2021-04-13 |
| 10761478 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2020-09-01 |
| 10642218 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2020-05-05 |
| 10234820 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2019-03-19 |
| 10162304 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2018-12-25 |
| 9857763 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2018-01-02 |
| 9829856 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2017-11-28 |
| 9519260 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2016-12-13 |
| 9507318 | Process cartridge and electrophotographic image forming apparatus | Hideki Maeshima, Akira Yoshimura | 2016-11-29 |
| 9501034 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2016-11-22 |
| 9494916 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2016-11-15 |
| 9141083 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2015-09-22 |
| 9122237 | Process cartridge and electrophotographic image forming apparatus | Hideki Maeshima, Akira Yoshimura | 2015-09-01 |
| 8971760 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2015-03-03 |
| 8688003 | Process cartridge and electrophotographic image forming apparatus | Hideki Maeshima, Akira Yoshimura | 2014-04-01 |
| 8588646 | Process cartridge and image forming apparatus | Akira Yoshimura, Susumu Nittani, Atsushi Numagami | 2013-11-19 |
| 8583006 | Electrophotographic image forming apparatus and process cartridge with electrical contacts that urge developer roller to photosensitive drum | Masaki Kakitani, Hideki Maeshima, Akinori Takayama | 2013-11-12 |
| 8565639 | Process cartridge and image forming apparatus | Susumu Nittani, Hideki Maeshima, Yukio Kubo | 2013-10-22 |
| 8369743 | Process cartridge and electrophotographic image forming apparatus | Hideki Maeshima, Akira Yoshimura | 2013-02-05 |
| 8213828 | Electrophotographic image forming apparatus and process cartridge mounted thereto having contacts electrically connecting with an electrical contact | Masaki Kakitani, Hideki Maeshima, Akinori Takayama | 2012-07-03 |