Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10620567 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Tetsuo Uesugi, Kojiro Yasui +1 more | 2020-04-14 |
| 10175609 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Tetsuo Uesugi, Kojiro Yasui +1 more | 2019-01-08 |
| 9885978 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Tetsuo Uesugi, Kojiro Yasui +1 more | 2018-02-06 |
| 9665040 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Tetsuo Uesugi, Kojiro Yasui +1 more | 2017-05-30 |
| 9405224 | Developer accommodating container with flexible members forming injection opening | Junichi Matsumura | 2016-08-02 |
| 9383678 | Developer accommodating container, process cartridge and image forming apparatus | Kojiro Yasui, Hiroomi Matsuzaki, Koji Yamaguchi | 2016-07-05 |
| 9354553 | Developer accommodating container, process cartridge and electrophotographic image forming apparatus | Masatomi Yoshida, Masaaki Matsushita, Tetsuo Uesugi, Seiichi Shinohara | 2016-05-31 |
| 9304440 | Developer accommodating unit, process cartridge and electrophotographic image forming apparatus | Masatomi Yoshida, Kojiro Yasui, Tetsuo Uesugi | 2016-04-05 |
| 9213263 | Flexible developer accommodating container with unsealable openings | Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki | 2015-12-15 |
| 9207581 | Developer accommodating unit, developing device, process cartridge and image forming apparatus | Koji Wada, Takashi Kase, Takayuki Kanazawa, Yusuke Usui, Kojiro Yasui +5 more | 2015-12-08 |
| 9152081 | Developer accommodating container, process cartridge, electrophotographic image forming apparatus | Kojiro Yasui, Hiroomi Matsuzaki, Koji Yamaguchi, Masaaki Matsushita, Tatsuo Fujisaki | 2015-10-06 |
| 9146500 | Developer accommodating unit | Tetsuo Uesugi, Kojiro Yasui, Hiroomi Matsuzaki | 2015-09-29 |
| 9063464 | Developer containing unit, process cartridge, and electrophotographic image forming apparatus | Koji Yamaguchi, Tetsuo Uesugi, Junichi Matsumura, Tomonori Matsunaga | 2015-06-23 |
| 8824918 | Developer accommodating unit, process cartridge, electrophotographic image forming apparatus | Yosuke Kashiide, Junichi Matsumura, Masaaki Matsushita, Tetsuo Uesugi, Hiroomi Matsuzaki +3 more | 2014-09-02 |