Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12210303 | Sheet conveyor and image forming apparatus incorporating the sheet conveyor | Yasunori Ishigaya | 2025-01-28 |
| 12174565 | Heating device, fixing device, and image forming apparatus with a single sheet sensor | Yuma MATSUMOTO, Yasunori Ishigaya, Yuusuke Furuichi | 2024-12-24 |
| 12085877 | Conveyance device and image forming apparatus | Yasunori Ishigaya, Daisuke Hirano | 2024-09-10 |
| 12025935 | Heating device, fixing device, and image forming apparatus | Yasunori Ishigaya | 2024-07-02 |
| 11934126 | Heating device, fixing device, and image forming apparatus | Yasunori Ishigaya, Tomoya Adachi, Daisuke Hirano | 2024-03-19 |
| 11500314 | Image forming apparatus and cleaning method | Yoshio Hattori, Yoshikuni Sasaki, Takahiro Imada, Hiromasa Takagi, Yasunori Ishigaya +1 more | 2022-11-15 |
| 10678170 | Fixing device and image forming apparatus | Yasunori Ishigaya, Kazuya Saito, Toshihiko Shimokawa, Hiromasa Takagi | 2020-06-09 |
| 10156818 | Fixing device and image forming apparatus | Yasunori Ishigaya, Kazuya Saito, Toshihiko Shimokawa, Hiromasa Takagi | 2018-12-18 |
| 10152006 | Fixing device and image forming apparatus | Yasunori Ishigaya, Yutaka Ikebuchi, Kazuya Saito, Ryohei Matsuda, Hiromasa Takagi +2 more | 2018-12-11 |
| 10067449 | Fixing device and image forming apparatus | Ryohei Matsuda, Yutaka Ikebuchi, Yasunori Ishigaya, Kazuya Saito | 2018-09-04 |
| 10061235 | Fixing device and image forming apparatus | Yasunori Ishigaya, Kazuya Saito, Ryohei Matsuda, Hiromasa Takagi, Ryuuichi Mimbu +1 more | 2018-08-28 |
| 10012932 | Image forming apparatus incorporating fixing device | Yasunori Ishigaya, Ryuuichi Mimbu, Hiromasa Takagi, Toshihiko Shimokawa, Kazuya Saito | 2018-07-03 |
| 9904220 | Fixing device and image forming apparatus | Kazuya Saito, Yasunori Ishigaya, Hiromasa Takagi, Toshihiko Shimokawa | 2018-02-27 |
| 9804546 | Fixing device and image forming apparatus | Kazuya Saito, Yasunori Ishigaya, Yutaka Ikebuchi, Ryohei Matsuda | 2017-10-31 |
| 9753417 | Fixing device including outlet guide member and image forming apparatus thereof | Yoshiki Yamaguchi, Yoshio Hattori, Haruyuki Honda, Ryuuichi Mimbu, Toshihiko Shimokawa +4 more | 2017-09-05 |
| 9618888 | Fixing device and image forming apparatus | Kenji Ishii, Hiromasa Takagi, Takayuki Seki | 2017-04-11 |
| 9599940 | Fixing device with nip forming member having a high thermal-conductive layer with a low thermal conductive portion | Motoyoshi Yamano, Kohichi Utsunomiya, Hiromasa Takagi, Kenji Ishii, Takayuki Seki +6 more | 2017-03-21 |
| 9581948 | Fixing device and image forming apparatus | Hiromasa Takagi, Kenji Ishii, Takayuki Seki | 2017-02-28 |
| 9575447 | Fixing device and image forming apparatus | Yutaka Ikebuchi, Yasunori Ishigaya, Takuya Seshita, Kazuya Saito, Motoyoshi Yamano | 2017-02-21 |
| 9557697 | Recording media smoothness detector and image forming apparatus incorporating same | Takumi Waida, Shuji Hirai, Terumichi Ochi, Shinji Kato, Ryota Yamashina | 2017-01-31 |
| 9529308 | Image forming apparatus and image forming method | Yutaka Ikebuchi, Yoshio Hattori, Ryuuichi Mimbu, Yasunori Ishigaya, Yoshiki Yamaguchi +2 more | 2016-12-27 |
| 9529309 | Fixing device and image forming apparatus including a multi-layer nip formation pad | Kenji Ishii, Hiromasa Takagi, Takayuki Seki | 2016-12-27 |
| 9494901 | Fixing device and image forming apparatus with a rotatable light shield | Kazuya Saito, Ryuuichi Mimbu, Toshihiko Shimokawa, Haruyuki Honda, Yoshiki Yamaguchi +3 more | 2016-11-15 |
| 9329545 | Fixing device and image forming apparatus | — | 2016-05-03 |
| 9298146 | Fixing device and image forming apparatus | Arinobu Yoshiura, Hideo Nagafuji, Yuji Arai, Kohichi Utsunomiya, Shohei Saito +5 more | 2016-03-29 |