Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11858209 | Fabricating apparatus and method for altering the kinetic energy of liquid droplets | Kenichiroh Hashimoto, Hisataka Takagi, Takuei NISHIO | 2024-01-02 |
| 10036976 | Developing device, and image forming apparatus and process unit incorporating same | Tetsumaru Fujita, Masato Tsuji, Yutaro Kaku | 2018-07-31 |
| 9958806 | Developing device and image forming apparatus incorporating same | Masato Tsuji, Tetsumaru Fujita, Mitsutoshi Kichise, Yutaro Kaku, Kazuki Matsumoto | 2018-05-01 |
| 9551956 | Image forming apparatus that utilizes toner roller bias voltages for image density adjustments | Kyoko Abe, Shintaro Yamada, Shinji Aoki | 2017-01-24 |
| 9335663 | Seal, cleaning unit with seal, transfer unit with seal, developing unit with seal, process cartridge with seal, image forming apparatus with seal, and image forming method | Kyoko Abe, Tomohiro Kubota, Takahiro Sanada | 2016-05-10 |
| 9116460 | Reducing toner adhesion to a development device of an image forming apparatus | Yasuhide Matsuno, Naoki Nakatake, Takahiro Sanada | 2015-08-25 |
| 8983323 | Color image forming apparatus with a line velocity difference set between image carriers | Takeshi Yamashita, Naoki Nakatake, Yasuhiro Fujiwara, Takafumi Miyazaki, Yasuhide Matsuno +5 more | 2015-03-17 |
| 8977150 | Image forming apparatus including a controller configured to regulate a potential difference between a photoconductor and a developing member | Shin Yamamoto, Shin Murayama, Yoshio Sakagawa | 2015-03-10 |
| 8971743 | Image forming apparatus and image forming method | Takafumi Miyazaki, Naoki Nakatake, Yasuhide Matsuno, Takahiro Sanada, Yasuhiro Fujiwara +3 more | 2015-03-03 |
| 8867971 | Developer regulator, development device, and image forming apparatus incorporating same | Ryuji Inoue, Yasuhide Matsuno | 2014-10-21 |
| 8805222 | Image developing device, process cartridge including image developing device, and image forming device including image developing device | Naoki Nakatake, Tomohiro Kubota, Shoh Tsuritani, Yasuhide Matsuno, Hiroaki Katoh +7 more | 2014-08-12 |
| 8406664 | Image forming apparatus, image forming method, and developing device | Tetsumaru Fujita | 2013-03-26 |
| 8354164 | Semiconductive member, and developing roll, charging roll, transfer belt, and image forming apparatus using same | Chiyoshi Nozaki, Tetsumaru Fujita, Shintaro Yamada, Shin Murayama, Manabu Hamada +1 more | 2013-01-15 |
| 7907871 | Image forming apparatus | Yoshio Sakagawa, Tetsumaru Fujita | 2011-03-15 |
| 7903993 | Image forming apparatus | Yoshio Sakagawa, Tetsumaru Fujita | 2011-03-08 |
| 7822356 | Image forming apparatus | Yoshio Sakagawa, Tetsumaru Fujita | 2010-10-26 |
| 7796912 | Image forming method and apparatus which uses alternating voltage to form an electric field for moving toner | Yoshio Sakagawa, Tetsumaru Fujita | 2010-09-14 |
| 7796935 | Process cartridge and image forming apparatus including same | Tetsumaru Fujita | 2010-09-14 |
| 7792463 | Image forming apparatus including a brush member to temporarily capture toner | Yoshio Sakagawa, Tetsumaru Fujita | 2010-09-07 |
| 7751753 | Cleanerless image forming apparatus | Yoshio Sakagawa, Tetsumaru Fujita | 2010-07-06 |
| 7738803 | Image forming method and apparatus for effectively charging an image carrier | Tetsumaru Fujita, Yoshio Sakagawa | 2010-06-15 |
| 7734227 | Developing device and image-forming apparatus using multiple-component developer | Shigeo Uetake, Junya Hirayama, Takeshi Maeyama, Masahiko Matsuura, Toshiya Natsuhara | 2010-06-08 |
| 7725054 | Electrifying apparatus, a processing unit, and an image formation apparatus | Tetsumaru Fujita, Yoshio Sakagawa | 2010-05-25 |
| 7693459 | Charging device for charging a surface of a latent image bearing member and an image forming apparatus including the charging device | Tetsumaru Fujita, Yoshio Sakagawa | 2010-04-06 |
| 7684732 | Process unit and image forming apparatus including the same | Tetsumaru Fujita, Yoshio Sakagawa | 2010-03-23 |