Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11906910 | Image forming apparatus including developer conveying member and toner concentration sensor | Akihiro Watanabe | 2024-02-20 |
| 11906911 | Developing device and image forming apparatus including developer conveying member and toner concentration sensor | Akihiro Watanabe | 2024-02-20 |
| 11906912 | Toner conveyance device that can execute toner loosening mode, and developing device and image forming apparatus including the same | Akihiro Watanabe | 2024-02-20 |
| 11809096 | Toner conveyance device, and developing device and image forming apparatus including the same | Akihiro Watanabe | 2023-11-07 |
| 10698337 | Image forming apparatus with developer information acquisition unit that acquires information relating to deterioration of developer based on an acquired toner charging amount | Tamotsu Shimizu, Akifumi Yamaguchi, Yasuhiro Tauchi, Yu Sasaki | 2020-06-30 |
| 9829829 | Developing device and image forming apparatus provided with same | Tamotsu Shimizu, Akihiro Watanabe, Norio Kubo, Minoru Wada, Ryo Taniguchi +2 more | 2017-11-28 |
| 9366995 | Developing device and image forming apparatus provided with same | Masaru Hatano, Akifumi Yamaguchi, Yu Sasaki, Ryo Taniguchi, Koji Kuramashi | 2016-06-14 |
| 9229373 | Developing device including a developer feeding member having a rotary shaft, a first transport blade for stirring and transporting developer, a blocking portion for blocking the developer, a paddle extending parallel to the rotary shaft, and a second transport blade for transporting the developer in the opposite direction to the first transport blade, and image forming apparatus therewith | — | 2016-01-05 |
| 9141072 | Image forming apparatus and image deletion reducing method | Jun Nakai, Masahito Ishino | 2015-09-22 |
| 9122199 | Developing device and an image forming apparatus including the same | — | 2015-09-01 |
| 9104168 | Image forming apparatus | Masahito Ishino, Jun Nakai | 2015-08-11 |
| 9042767 | Image forming apparatus having a drum heater | Jun Nakai, Masahito Ishino | 2015-05-26 |
| 8879938 | Developing device and image forming apparatus including same | — | 2014-11-04 |
| 6708016 | Developing device comprising a regulation member having at least one bent part | Yoshihiro Fukuhata, Akihiro Kawasaki, Hiroaki Umemoto, Koji Uno | 2004-03-16 |
| 6343201 | Developing apparatus comprising developing roller that is rotated upward from below in developing area and image forming apparatus using the same | Minoru Wada, Tetsumaru Fujita, Ichiro Demizu, Akihiro Kawasaki, Yoichi Fujieda +1 more | 2002-01-29 |
| 5911098 | Development apparatus and method using selectively applied AC voltages | Tamotsu Shimizu | 1999-06-08 |
| 5828936 | Developing device | Tamotsu Shimizu | 1998-10-27 |