Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292072 | Management system using a sensing washer for detecting attachment state of attachment object | Shinji Murata, Ryu Arasawa | 2025-05-06 |
| 12153361 | Transfer roller, transfer device, and image forming apparatus | Taisuke Minagawa | 2024-11-26 |
| 11650523 | Image forming apparatus including a transfer member with a rotatable conductive shaft having a void and having an elastic portion which covers a periphery of the shaft | Taisuke Minagawa | 2023-05-16 |
| 10852693 | Image forming apparatus | — | 2020-12-01 |
| 10481552 | Fixing device having a perforated duct | Taisuke Minagawa, Satoru Izawa, Takahiro Uchiyama, Toshiya Kaino, Wataru Uchida +4 more | 2019-11-19 |
| 10317832 | Image forming apparatus to suppress toner adhering to guiding members | Toshiya Kaino, Ryuichi Umehara | 2019-06-11 |
| 10261462 | Image forming apparatus | Toshiya Kaino, Ryuichi Umehara | 2019-04-16 |
| 10061254 | Image forming system with information on conveying speed transferred between control units | Ryuichi Umehara, Toshiya Kaino, Atsushi Kawarago | 2018-08-28 |
| 10031476 | Image forming apparatus having fixing device and blower for the fixing device | Taisuke Minagawa, Satoru Izawa, Takahiro Uchiyama, Toshiya Kaino, Wataru Uchida +4 more | 2018-07-24 |
| 9869953 | Image forming apparatus | Toshiya Kaino, Ryuichi Umehara | 2018-01-16 |
| 9459569 | Image forming apparatus counting cumulative number of startups of fixing unit | Masaki Hirose, Satoru Taniguchi, Takashi Honke, Hirohiko Aiba | 2016-10-04 |
| 9442437 | Image forming apparatus changing target temperature of heating member or interval between preceding and subsequent recording material in accordance with ratio of toner image area in predetermined region to predetermined region area | Takashi Honke, Satoru Taniguchi, Hirohiko Aiba, Masaki Hirose | 2016-09-13 |
| 9429886 | Image forming apparatus having fixing device and blower for the fixing device | Taisuke Minagawa, Satoru Izawa, Takahiro Uchiyama, Toshiya Kaino, Wataru Uchida +4 more | 2016-08-30 |
| 9417606 | Image forming apparatus having control means to reduce an amount of the water vapor produced in a main assembly thereof or detecting unit configured to detect a value relating to an amount of water vapor in the main assembly | Hirohiko Aiba, Masaki Hirose | 2016-08-16 |
| 9223290 | Image forming apparatus | Hirohiko Aiba, Satoru Taniguchi, Takashi Honke, Masaki Hirose, Shinkichi Yamamoto +1 more | 2015-12-29 |
| 9081345 | Image forming apparatus | Wataru Uchida, Tomoyuki Araki, Toshiaki Miyashiro, Mitsuhiro Ito, Taro Ishifune +4 more | 2015-07-14 |
| 9058019 | Image forming apparatus | — | 2015-06-16 |
| 8965239 | Heat fixing device having cooling fan and pressing roller with heat conductive filler | Toshiya Kaino, Satoru Izawa, Koji Nihonyanagi, Kuniaki Kasuga, Taisuke Minagawa +1 more | 2015-02-24 |
| 8942589 | Fixing apparatus | Toshiya Kaino, Taisuke Minagawa, Koji Nihonyanagi | 2015-01-27 |
| 8755706 | Image forming apparatus | Taisuke Minagawa, Koji Nihonyanagi, Toshiya Kaino, Kuniaki Kasuga, Hayato Negishi | 2014-06-17 |
| 8731429 | Image forming apparatus | — | 2014-05-20 |
| 8646776 | Image forming apparatus with reversely-rotatable roller of differential velocities | Jun Agata, Kenji Matsuzaka, Kouichi Yamada, Masatoshi Takiguchi, Ryukichi Inoue +2 more | 2014-02-11 |
| 8600259 | Image forming apparatus fixing a toner image on recording material with a fixing portion having a fixing sleeve and pressing roller, at least one of which is grounded | Ken Oi | 2013-12-03 |
| 8509663 | Image forming apparatus or transfer roller used in image forming apparatus | Eiji Uekawa | 2013-08-13 |
| 8509645 | Image forming system and apparatus with different printing modes for different numbers of printing sheets | Shoichiro Ikegami, Tohru Saito, Shinji Hashiguchi, Masato Sako, Takehiko Suzuki | 2013-08-13 |