Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12360712 | Image processing system for specifying countermeasures against errors, image forming system, information processing apparatus, inspection method, countermeasure specifying program, countermeasure specifying system, learning apparatus, and learning method | Motoki Hironaka, Yutaka Miyasaka, Kei Okamura, Kei Yuasa, Tomohiro Mikami | 2025-07-15 |
| 11500330 | Image forming apparatus having developing device with air suction device | Shota Sakurai, Kei Yuasa, Tetsuya Ishikawa | 2022-11-15 |
| 11488295 | Evaluation device and evaluation method | Natsuko Minegishi, Yoshiki Nakane, Hiroshi Morimoto, Kei Okamura, Takashi Akazawa | 2022-11-01 |
| 11402791 | Image forming apparatus and lubricant supply control method | Kei Yuasa, Takashi Akazawa, Kei Okamura | 2022-08-02 |
| 10795306 | Cleaning member for image forming apparatus including a protrusion | Yoshiki Nakane, Kei Okamura, Hiroshi Morimoto, Natsuko Minegishi | 2020-10-06 |
| 10649365 | Developing device and image forming device | Wataru Watanabe, Shota Sakurai, Tomohiro Kawasaki, Ryoei Ikari | 2020-05-12 |
| 10459392 | Image forming apparatus, method of discharging toner, and program for discharging toner | Shota Sakurai, Tomohiro Kawasaki, Wataru Watanabe, Ryoei Ikari | 2019-10-29 |
| 10401761 | Developing device and image forming apparatus | Shota Sakurai, Tomohiro Kawasaki, Wataru Watanabe, Ryoei Ikari | 2019-09-03 |
| 10129436 | Image forming system and image forming method | — | 2018-11-13 |
| 9989908 | Image formation system, image density correction method, and image formation apparatus | — | 2018-06-05 |
| 9268255 | Image formation system and density controlling method | — | 2016-02-23 |
| 8334794 | Input device and keyboard device having illumination function | Kazutoshi Watanabe, Hideaki Nagakubo, Koichi Yamamoto, Katsuyuki Katayama, Naomi Sato +6 more | 2012-12-18 |
| 8135302 | Image forming apparatus having cleaning device of pre-secondary transfer discharge unit | Yotaro Sato, Hajime Kawakami | 2012-03-13 |
| 7945202 | Cleaning apparatus and image forming apparatus | Yotaro Sato, Hajime Kawakami | 2011-05-17 |
| 7761042 | Color image forming apparatus | Yotaro Sato | 2010-07-20 |
| 7639974 | Color image forming apparatus with pre-secondary transfer charge eliminating section | Yotaro Sato | 2009-12-29 |
| 7593675 | Color image forming apparatus having a discharging unit to discharge an electrical charge of a toner image transferred on an intermediate transfer member | Yotaro Sato | 2009-09-22 |
| 7593665 | Image forming apparatus with cleaning unit | Shuta Hamada, Yotaro Sato | 2009-09-22 |
| 7489894 | Image forming apparatus with belt surface regulating member | Yotaro Sato | 2009-02-10 |
| 7486901 | Image forming apparatus and image forming method | Yotaro Sato, Shuta Hamada | 2009-02-03 |
| 7444098 | Image forming apparatus with cleaning unit | Yotaro Sato, Shuta Hamada | 2008-10-28 |
| 7440719 | Color image forming apparatus having pre-transfer discharger | Satoshi Hamaya, Yotaro Sato | 2008-10-21 |
| 7373100 | Color image forming apparatus having pre-transfer discharge electrode | Yotaro Sato, Shuta Hamada | 2008-05-13 |
| 7346302 | Color image forming apparatus and electric charge eliminating device | Yotaro Sato | 2008-03-18 |
| 7327976 | Color image forming apparatus | Shuta Hamada, Yotaro Sato | 2008-02-05 |