Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416889 | Fixing device including discharge guide guiding sheet passed through pressurized region and image forming apparatus | Masakazu Uehara | 2025-09-16 |
| 12399451 | Fixing device for image forming apparatus with retention member having groove for retaining lubricant | Yuta Kitabayashi, Ryohei Tokunaga, Hiroki Kawasaki, Shunsaku FUJII, Rina Kikugawa +2 more | 2025-08-26 |
| 12282286 | Image forming apparatus including fixing device having shutter and lock member for holding shutter position | Masakazu Uehara, Takuya Kawasumi | 2025-04-22 |
| 12181821 | Fixing device and image forming apparatus | Yuhiro Sakai, Masakazu Uehara, Hironori Takahashi, Shota Onishi | 2024-12-31 |
| 12158717 | Fixing device and image forming apparatus | Masakazu Uehara, Takuya Kawasumi | 2024-12-03 |
| 12050422 | Fixing device and image forming apparatus | Masakazu Uehara, Hironori Takahashi, Shota Onishi, Yuhiro Sakai | 2024-07-30 |
| 12044990 | Fixing device and image forming apparatus capable of suppressing deformation of fixing belt and excessive adhesion of lubricant | Masakazu Uehara, Hironori Takahashi, Shota Onishi, Yuhiro Sakai, Takuya Kawasumi | 2024-07-23 |
| 11966182 | Fixing device and image forming apparatus | Hironori Takahashi, Masakazu Uehara, Shota Onishi, Yuhiro Sakai | 2024-04-23 |
| 11886137 | Fixing device and image forming apparatus including thermistor and thermostat aligned in a sheet conveyance direction | Fumito Nakamoto, Masakazu Uehara, Hironori Takahashi, Yuhiro Sakai | 2024-01-30 |
| 11796945 | Fixing device and image forming apparatus | Yuhiro Sakai | 2023-10-24 |
| 11720050 | Fixing device in which transmission protrusion of follower gear abuts against one of protruding plate portions of heat roller main body, and image forming apparatus including fixing device | Yoshiharu Kanematsu | 2023-08-08 |
| 11507004 | Fixing device and image forming apparatus | Masakazu Uehara, Yuhiro Sakai, Fumito Nakamoto | 2022-11-22 |
| 11500316 | Fixing device and image forming apparatus | Masakazu Uehara, Yuhiro Sakai, Fumito Nakamoto | 2022-11-15 |
| 11474463 | Fixing device and image forming apparatus capable of promoting circulation of lubricant | Fumito Nakamoto, Masakazu Uehara, Yuhiro Sakai | 2022-10-18 |
| 11422494 | Fixing device having heater holding member restricting movement of belt holding member, and image forming apparatus including same | Yuhiro Sakai, Masakazu Uehara, Fumito Nakamoto | 2022-08-23 |
| 11126119 | Fixing device including heater holding member that holds heater for heating belt | Hironori Takahashi, Masakazu Uehara, Yuhiro Sakai, Fumito Nakamoto | 2021-09-21 |
| 11126120 | Fixing device and image forming apparatus | Hironori Takahashi, Masakazu Uehara, Yuhiro Sakai, Fumito Nakamoto | 2021-09-21 |
| 10990046 | Fixing device having heater holding member with inclined slits | Masakazu Uehara, Hironori Takahashi, Yuhiro Sakai, Fumito Nakamoto | 2021-04-27 |
| 10969718 | Fixing device including rotor facing inner circumferential surface of fixing belt and image forming apparatus | Masakazu Uehara, Hironori Takahashi, Yuhiro Sakai, Fumito Nakamoto | 2021-04-06 |
| 10877409 | Fixing device and image forming apparatus | Masakazu Uehara, Hironori Takahashi, Yuhiro Sakai | 2020-12-29 |
| 10838334 | Fixing device and image forming apparatus | Yuhiro Sakai, Masakazu Uehara, Hironori Takahashi | 2020-11-17 |
| 10747155 | Fixing device and image forming apparatus | Masakazu Uehara, Hironori Takahashi, Yuhiro Sakai | 2020-08-18 |
| 10551778 | Fixing device enhancing heat insulation performance and image forming apparatus including the same | — | 2020-02-04 |
| 10061265 | Image forming apparatus including a fixing unit which fixes a toner image on a recording medium | — | 2018-08-28 |
| 10042287 | Image forming apparatus and toner case | Daisuke Mimura | 2018-08-07 |