Issued Patents All Time
Showing 25 most recent of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11221584 | Image forming apparatus and cartridge with a coupling member that contacts another coupling member by an electrostatic adsorption force | Seiji Hara, Hiroki Ogino | 2022-01-11 |
| 10739702 | Developer accommodating unit, cartridge and image forming apparatus | Hiroki Ogino | 2020-08-11 |
| 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 |
| 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 |
| 10162289 | Developer accommodating container, developer accommodating unit, process cartridge, electrophotographic image forming apparatus | Hiroomi Matsuzaki, Junichi Matsumura, Kazuki Matsumoto, Tatsuo Fujisaki | 2018-12-25 |
| 10001727 | Developer accommodating container, developer accommodating unit, process cartridge, and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Junichi Matsumura, Kazuki Matsumoto, Tatsuo Fujisaki | 2018-06-19 |
| 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 |
| 9715191 | Powder feeding mechanism, powder feeding method, developer accommodating container, cartridge and image forming apparatus | Hiroki Ogino | 2017-07-25 |
| 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 |
| 9599930 | Developer accommodating container, developer accommodating unit, process cartridge, and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Junichi Matsumura, Kazuki Matsumoto, Tatsuo Fujisaki | 2017-03-21 |
| 9529304 | Developer accommodating unit, process cartridge, and electrophotographic image forming apparatus | Tetsuo Uesugi, Masaaki Matsushita, Masatomi Yoshida, Hiroomi Matsuzaki, Tatsuo Fujisaki +2 more | 2016-12-27 |
| 9383678 | Developer accommodating container, process cartridge and image forming apparatus | Masaki Furutani, Hiroomi Matsuzaki, Koji Yamaguchi | 2016-07-05 |
| 9366994 | Developer container, cartridge, and image forming apparatus | Seiichi Shinohara, Hiroki Ogino | 2016-06-14 |
| 9360831 | Developing unit, process cartridge and image forming apparatus | Hiroomi Matsuzaki, Junichi Matsumura, Masatomi Yoshida | 2016-06-07 |
| 9341983 | Developer accommodating unit, developing device, process cartridge and image forming apparatus | Masatomi Yoshida, Masaaki Matsushita, Koji Yamaguchi | 2016-05-17 |
| 9302801 | Developer accommodating unit, manufacturing method thereof, process cartridge and image forming apparatus | Junichi Matsumura, Masaaki Matsushita, Koji Yamaguchi, Tetsuo Uesugi, Tatsuo Fujisaki +1 more | 2016-04-05 |
| 9304439 | Developer accommodating container, developer accommodating unit, process cartridge, electrophotographic image forming apparatus | Hiroomi Matsuzaki, Junichi Matsumura, Kazuki Matsumoto, Tatsuo Fujisaki | 2016-04-05 |
| 9304440 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Masatomi Yoshida, Masaki Furutani, Tetsuo Uesugi | 2016-04-05 |
| 9291942 | Developer accommodating unit, process cartridge and image forming apparatus | Hiroomi Matsuzaki, Koji Yamaguchi, Masaaki Matsushita | 2016-03-22 |
| 9250565 | Developing device, process cartridge, and image forming apparatus | — | 2016-02-02 |
| 9207581 | Developer accommodating unit, developing device, process cartridge and image forming apparatus | Koji Wada, Takashi Kase, Takayuki Kanazawa, Yusuke Usui, Masaki Furutani +5 more | 2015-12-08 |
| 9152081 | Developer accommodating container, process cartridge, electrophotographic image forming apparatus | Hiroomi Matsuzaki, Koji Yamaguchi, Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani | 2015-10-06 |
| 9146500 | Developer accommodating unit | Tetsuo Uesugi, Masaki Furutani, Hiroomi Matsuzaki | 2015-09-29 |
| 9042769 | Developing device, process cartridge, and image forming apparatus | Hiroki Ogino, Tomonori Mori | 2015-05-26 |
| 8824918 | Developer accommodating unit, process cartridge, electrophotographic image forming apparatus | Yosuke Kashiide, Junichi Matsumura, Masaki Furutani, Masaaki Matsushita, Tetsuo Uesugi +3 more | 2014-09-02 |