Issued Patents All Time
Showing 25 most recent of 120 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405566 | Electrophotographic image forming apparatus, cartridge and drum unit | Takeo Kawanami, Yu Fukasawa | 2025-09-02 |
| 12405567 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Shigeo Miyabe, Masato Hisano | 2025-09-02 |
| 12298704 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Shigeo Miyabe, Takahito Ueno | 2025-05-13 |
| 12242222 | Electrophotographic image forming apparatus, cartridge and drum unit | Takeo Kawanami, Yu Fukasawa | 2025-03-04 |
| 12045005 | Cartridge assembly | Isao Koishi, Naoki Hayashi | 2024-07-23 |
| 12038717 | Process unit including first and second resin materials and image forming apparatus | Yuichi Sakakibara, Yosuke Kashiide, Hiroyuki Munetsugu, Yuko Harada, Goshi Ozaki +6 more | 2024-07-16 |
| 12038716 | Cartridge, drum unit and image forming apparatus | Toshiki Fujino, Akinobu Hirayama, Teruhiko Sasaki, Tachio Kawai, Daisuke Abe +2 more | 2024-07-16 |
| 12032330 | Cartridge, drum unit and image forming apparatus | Toshiki Fujino, Akinobu Hirayama, Teruhiko Sasaki, Tachio Kawai, Daisuke Abe +2 more | 2024-07-09 |
| 11906927 | Cartridge, drum unit and image forming apparatus | Toshiki Fujino, Akinobu Hirayama, Teruhiko Sasaki, Tachio Kawai, Daisuke Abe +2 more | 2024-02-20 |
| 11774876 | Developing unit | Yu Fukasawa, SEIYA ISHIKAWA | 2023-10-03 |
| 11720054 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Shigeo Miyabe, Masato Hisano | 2023-08-08 |
| 11675308 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Shigeo Miyabe, Takahito Ueno | 2023-06-13 |
| 11531301 | Cartridge including a member movable relative to a frame of the cartridge and a regulating member for regulating movement of the movable member | Yukio Kubo, Naoki Hayashi | 2022-12-20 |
| 11520286 | Cartridge and image forming apparatus | Yuichi Sakakibara, Yosuke Kashiide, Hiroyuki Munetsugu, Yuko Harada, Goshi Ozaki +6 more | 2022-12-06 |
| 11500327 | Cartridge and electrophotographic image forming apparatus which uses cartridge | Shigeo Miyabe, Takahito Ueno | 2022-11-15 |
| 11237517 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Shigeo Miyabe, Masato Hisano | 2022-02-01 |
| 11204584 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Shigeo Miyabe, Takahito Ueno | 2021-12-21 |
| 11156956 | Rotational force transmitting part | Takahito Ueno, Shigeo Miyabe, Masato Hisano | 2021-10-26 |
| 11067949 | Cartridge and electrophotographic image forming apparatus which uses cartridge | Shigeo Miyabe, Takahito Ueno | 2021-07-20 |
| 11061369 | Cartridge and electrophotographic image forming apparatus which uses cartridge | Shigeo Miyabe, Takahito Ueno | 2021-07-13 |
| 10877433 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit | Takahito Ueno, Shigeo Miyabe, Masato Hisano | 2020-12-29 |
| 10845756 | Rotational force transmitting part | Takahito Ueno, Shigeo Miyabe, Masato Hisano | 2020-11-24 |
| 10816931 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Shiego Miyabe, Takahito Ueno | 2020-10-27 |
| 10795312 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Shiego Miyabe, Takahito Ueno | 2020-10-06 |
| 10788789 | Electrophotographic image forming apparatus, developing apparatus, and coupling member | Shiego Miyabe, Takahito Ueno | 2020-09-29 |