Issued Patents All Time
Showing 25 most recent of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416886 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Ken Nakagawa, Tsuguhiro Yoshida, Yutaka Sato, Kohei Wakatsu | 2025-09-16 |
| 12326679 | Image forming apparatus that forms images on a recording material | Atsushi Nakamoto | 2025-06-10 |
| 12321114 | Fixing apparatus having a nip area, and image forming apparatus | Tsuguhiro Yoshida, Kohei Wakatsu | 2025-06-03 |
| 12140892 | Image forming apparatus | — | 2024-11-12 |
| 12038703 | Fixing unit and image forming apparatus | Kohei Wakatsu | 2024-07-16 |
| 11947290 | Image forming apparatus that forms images on a recording material | Atsushi Nakamoto | 2024-04-02 |
| 11774889 | Fixing apparatus including heat generating element, and image forming apparatus | Tsuguhiro Yoshida, Atsushi Nakamoto, Shoichiro Ikegami | 2023-10-03 |
| 11774891 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Ken Nakagawa, Tsuguhiro Yoshida, Yutaka Sato, Kohei Wakatsu | 2023-10-03 |
| 11740576 | Image forming apparatus | — | 2023-08-29 |
| 11709446 | Fixing unit and image forming apparatus | Kohei Wakatsu | 2023-07-25 |
| 11669032 | Fixing apparatus having a nip area, and image forming apparatus | Tsuguhiro Yoshida, Kohei Wakatsu | 2023-06-06 |
| 11531294 | Image forming apparatus including a plurality of heat generating elements | Tsuguhiro Yoshida, Kohei Wakatsu, Yutaka Sato, Ken Nakagawa | 2022-12-20 |
| 11507001 | Image forming apparatus including a plurality of heat generating elements | Tsuguhiro Yoshida, Kohei Wakatsu | 2022-11-22 |
| 11442385 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Ken Nakagawa, Tsuguhiro Yoshida, Yutaka Sato, Kohei Wakatsu | 2022-09-13 |
| 11281139 | Fixing apparatus including heat generating element, and image forming apparatus | Tsuguhiro Yoshida, Atsushi Nakamoto, Shoichiro Ikegami | 2022-03-22 |
| 11281135 | Fixing apparatus switching heat generation members and image forming apparatus | Yutaka Sato, Kohei Wakatsu, Tsuguhiro Yoshida | 2022-03-22 |
| 11221575 | Image forming apparatus including a plurality of heat generating elements | Tsuguhiro Yoshida, Kohei Wakatsu, 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, Tsuguhiro Yoshida | 2021-12-21 |
| 11194272 | Fixing apparatus having a nip area, and image forming apparatus | Tsuguhiro Yoshida, Kohei Wakatsu | 2021-12-07 |
| 11092916 | Image forming apparatus including a plurality of heat generating elements | Tsuguhiro Yoshida, Kohei Wakatsu | 2021-08-17 |
| 11073778 | Heater including a plurality of heat generation members, fixing apparatus, and image forming apparatus | Ken Nakagawa, Tsuguhiro Yoshida, Yutaka Sato, Kohei Wakatsu | 2021-07-27 |
| 11048198 | Image forming apparatus | Tsuguhiro Yoshida, Yutaka Sato, Kohei Wakatsu | 2021-06-29 |
| 11003118 | Fixing apparatus and image forming apparatus that control heat generation of heat generation members | Tsuguhiro Yoshida, Hiroto Endo | 2021-05-11 |
| 10921737 | Fixing apparatus switching heat generation members and image forming apparatus | Yutaka Sato, Kohei Wakatsu, Tsuguhiro Yoshida | 2021-02-16 |
| 10884361 | Image forming apparatus that switches power supply to plurality of heating elements | Kohei Wakatsu, Tsuguhiro Yoshida, Yutaka Sato, Ken Oi | 2021-01-05 |