Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416889 | Fixing device including discharge guide guiding sheet passed through pressurized region and image forming apparatus | Tomohiro Watatani | 2025-09-16 |
| 12282286 | Image forming apparatus including fixing device having shutter and lock member for holding shutter position | Tomohiro Watatani, Takuya Kawasumi | 2025-04-22 |
| 12181821 | Fixing device and image forming apparatus | Yuhiro Sakai, Hironori Takahashi, Tomohiro Watatani, Shota Onishi | 2024-12-31 |
| 12158717 | Fixing device and image forming apparatus | Tomohiro Watatani, Takuya Kawasumi | 2024-12-03 |
| 12050422 | Fixing device and image forming apparatus | Hironori Takahashi, Tomohiro Watatani, 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 | Tomohiro Watatani, Hironori Takahashi, Shota Onishi, Yuhiro Sakai, Takuya Kawasumi | 2024-07-23 |
| 11966182 | Fixing device and image forming apparatus | Hironori Takahashi, Tomohiro Watatani, 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, Hironori Takahashi, Tomohiro Watatani, Yuhiro Sakai | 2024-01-30 |
| 11693337 | Developing device including development container, developer carrier, and restricting blade, and image forming apparatus including the same | Seia FUJII, Rei Yamagishi, Hiroaki Kitagawa, Takuya Kawasumi | 2023-07-04 |
| 11567425 | Developing device, and image forming apparatus including the same | Takuya Kawasumi, Rei Yamagishi, Hiroaki Kitagawa | 2023-01-31 |
| 11526095 | Image forming apparatus including detachable development device | — | 2022-12-13 |
| 11507004 | Fixing device and image forming apparatus | Tomohiro Watatani, Yuhiro Sakai, Fumito Nakamoto | 2022-11-22 |
| 11500316 | Fixing device and image forming apparatus | Tomohiro Watatani, Yuhiro Sakai, Fumito Nakamoto | 2022-11-15 |
| 11487220 | Developing device and image forming apparatus including ihe same | Takuya Kawasumi, Rei Yamagishi, Hiroaki Kitagawa, Seia FUJII | 2022-11-01 |
| 11474463 | Fixing device and image forming apparatus capable of promoting circulation of lubricant | Fumito Nakamoto, Tomohiro Watatani, Yuhiro Sakai | 2022-10-18 |
| 11435678 | Developing device and image forming apparatus including the same | Takuya Kawasumi, Rei Yamagishi, Hiroaki Kitagawa, Seia FUJII | 2022-09-06 |
| 11422494 | Fixing device having heater holding member restricting movement of belt holding member, and image forming apparatus including same | Yuhiro Sakai, Tomohiro Watatani, Fumito Nakamoto | 2022-08-23 |
| 11126119 | Fixing device including heater holding member that holds heater for heating belt | Hironori Takahashi, Tomohiro Watatani, Yuhiro Sakai, Fumito Nakamoto | 2021-09-21 |
| 11126120 | Fixing device and image forming apparatus | Hironori Takahashi, Tomohiro Watatani, Yuhiro Sakai, Fumito Nakamoto | 2021-09-21 |
| 10990046 | Fixing device having heater holding member with inclined slits | Tomohiro Watatani, 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 | Tomohiro Watatani, Hironori Takahashi, Yuhiro Sakai, Fumito Nakamoto | 2021-04-06 |
| 10877409 | Fixing device and image forming apparatus | Tomohiro Watatani, Hironori Takahashi, Yuhiro Sakai | 2020-12-29 |
| 10838334 | Fixing device and image forming apparatus | Yuhiro Sakai, Hironori Takahashi, Tomohiro Watatani | 2020-11-17 |
| 10747155 | Fixing device and image forming apparatus | Hironori Takahashi, Tomohiro Watatani, Yuhiro Sakai | 2020-08-18 |
| 10067460 | Image forming apparatus in which relative positional relationship between apparatus main body frame and feed device is determined through fitting between positioning portion of apparatus main body frame and position target portion of feed device | — | 2018-09-04 |