Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12044995 | Image forming apparatus capable of determining failure timing of a gear used therein, and determining method of the failure timing | Koji Suenami, Masashi Fujishima | 2024-07-23 |
| 11714366 | Image forming apparatus | Masashi Fujishima | 2023-08-01 |
| 11314183 | Developing device and image forming apparatus therewith | Masashi Fujishima, Asami Sasaki, Yasuhiro Tauchi, Tamotsu Shimizu, Akira Matayoshi +3 more | 2022-04-26 |
| 11209752 | Developing device and image forming apparatus therewith | Asami Sasaki, Akira Matayoshi, Koji Suenami, Yuji Toyota, Tamotsu Shimizu +2 more | 2021-12-28 |
| 11163243 | Image forming apparatus | Tamotsu Shimizu, Asami Sasaki, Yasuhiro Tauchi, Yuji Toyota | 2021-11-02 |
| 11112722 | Image forming apparatus | Tamotsu Shimizu, Asami Sasaki, Yasuhiro Tauchi, Yuji Toyota | 2021-09-07 |
| 11048192 | Image forming apparatus capable of suppressing occurrence of image defects in response to difference in carrier resistance and obtaining high image quality | Yuji Toyota, Yasuhiro Tauchi, Masashi Fujishima, Akira Matayoshi | 2021-06-29 |
| 10345741 | Developing device and image forming apparatus including same | Masashi Fujishima, Junichi Nakagawa, Asami Sasaki | 2019-07-09 |
| 9829829 | Developing device and image forming apparatus provided with same | Tamotsu Shimizu, Eiji Gyotoku, Akihiro Watanabe, Minoru Wada, Ryo Taniguchi +2 more | 2017-11-28 |
| 9535356 | Image forming apparatus having a function to apply charge removal light to photosensitive member | Shinji Otani, Masashi Fujishima, Koji Suenami, Yoshimi Shimizu, Kenichi Tamaki | 2017-01-03 |
| 9372443 | Developing device and image forming apparatus including same | Asami Sasaki, Masaru Hatano | 2016-06-21 |
| 9207583 | Developing device and image forming apparatus provided with same | Tamotsu Shimizu, Masaru Hatano, Asami Sasaki | 2015-12-08 |
| 8892006 | Developing device and image forming apparatus including the same | — | 2014-11-18 |
| 8781371 | Stir-transport member, development device provided therewith, and image forming apparatus | Akihiro Watanabe, Yukihiro Mori | 2014-07-15 |
| 8744318 | Developing device and image forming apparatus including the same | Yukihiro Mori, Asami Sasaki | 2014-06-03 |
| 8649708 | Developing apparatus and image forming apparatus including the same | Akihiro Watanabe, Yukihiro Mori | 2014-02-11 |
| 8559854 | Developing device and image forming apparatus including the same | Asami Sasaki | 2013-10-15 |
| 8346137 | Developing device and image-forming apparatus provided therewith | Eiji Gyoutoku, Koju Yamamoto | 2013-01-01 |
| 7917046 | Development device and image forming apparatus provided therewith | — | 2011-03-29 |
| 7455946 | Two component developing agent | Naruo Yabe, Kouzou Teramoto, Takeo Mizobe | 2008-11-25 |
| 5750301 | Toner for a two-component type developer | Masatomi Funato, Yoshitake Shimizu, Seijiro Ishimaru, Kazuya Nagao, Terumichi Asano | 1998-05-12 |
| 5580691 | Toner for a two-component type developer | Masatomi Funato, Yoshitake Shimizu, Seijiro Ishimaru, Kazuya Nagao, Terumichi Asano | 1996-12-03 |