Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416886 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Kazuhiro Doda, Ken Nakagawa, Yutaka Sato, Kohei Wakatsu | 2025-09-16 |
| 12405558 | Fixing device provided with heater and image forming apparatus | Kohei Wakatsu | 2025-09-02 |
| 12321114 | Fixing apparatus having a nip area, and image forming apparatus | Kazuhiro Doda, Kohei Wakatsu | 2025-06-03 |
| 12181820 | Fixing device and image forming apparatus | Akinori Yokota, Osamu Sasaoka | 2024-12-31 |
| 12001157 | Fixing device provided with heater and image forming apparatus | Kohei Wakatsu | 2024-06-04 |
| 11994815 | Heating apparatus and image forming apparatus | Atsushi Nakamoto, Toshiyuki Watanabe | 2024-05-28 |
| 11835896 | Fixing device provided with heater and image forming apparatus | Kohei Wakatsu | 2023-12-05 |
| 11774889 | Fixing apparatus including heat generating element, and image forming apparatus | Kazuhiro Doda, Atsushi Nakamoto, Shoichiro Ikegami | 2023-10-03 |
| 11774891 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Kazuhiro Doda, Ken Nakagawa, Yutaka Sato, Kohei Wakatsu | 2023-10-03 |
| 11669032 | Fixing apparatus having a nip area, and image forming apparatus | Kazuhiro Doda, Kohei Wakatsu | 2023-06-06 |
| 11579550 | Fixing device including heat equalizing member and image forming apparatus | Atsushi Nakamoto | 2023-02-14 |
| 11537066 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Shinji Katagiri, Takayuki Tanaka, Shuichi Tetsuno | 2022-12-27 |
| 11531294 | Image forming apparatus including a plurality of heat generating elements | Kohei Wakatsu, Kazuhiro Doda, Yutaka Sato, Ken Nakagawa | 2022-12-20 |
| 11507001 | Image forming apparatus including a plurality of heat generating elements | Kazuhiro Doda, Kohei Wakatsu | 2022-11-22 |
| 11442385 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Kazuhiro Doda, Ken Nakagawa, Yutaka Sato, Kohei Wakatsu | 2022-09-13 |
| 11281139 | Fixing apparatus including heat generating element, and image forming apparatus | Kazuhiro Doda, Atsushi Nakamoto, Shoichiro Ikegami | 2022-03-22 |
| 11281135 | Fixing apparatus switching heat generation members and image forming apparatus | Yutaka Sato, Kazuhiro Doda, Kohei Wakatsu | 2022-03-22 |
| 11262673 | Image forming apparatus | Keisuke Ishizumi, Shohei Ishio, Shinji Katagiri, Takayuki Tanaka, Shuichi Tetsuno | 2022-03-01 |
| 11221575 | Image forming apparatus including a plurality of heat generating elements | Kohei Wakatsu, Kazuhiro Doda, Yutaka Sato, Ken Nakagawa | 2022-01-11 |
| 11204571 | Heating apparatus including a plurality of heat generating elements, fixing apparatus, and image forming apparatus | Kohei Wakatsu, Kazuhiro Doda | 2021-12-21 |
| 11194272 | Fixing apparatus having a nip area, and image forming apparatus | Kazuhiro Doda, Kohei Wakatsu | 2021-12-07 |
| 11143987 | Imaging forming apparatus with enhanced primary transferability where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer belt | Masaru Shimura, Shinji Katagiri, Eiichi Hamana, Takahiro Ikeda, Takayuki Tanaka +1 more | 2021-10-12 |
| 11092916 | Image forming apparatus including a plurality of heat generating elements | Kazuhiro Doda, Kohei Wakatsu | 2021-08-17 |
| 11073778 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Kazuhiro Doda, Ken Nakagawa, Yutaka Sato, Kohei Wakatsu | 2021-07-27 |
| 11048198 | Image forming apparatus | Kazuhiro Doda, Yutaka Sato, Kohei Wakatsu | 2021-06-29 |