Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12399451 | Fixing device for image forming apparatus with retention member having groove for retaining lubricant | Yuta Kitabayashi, Ryohei Tokunaga, Hiroki Kawasaki, Shunsaku FUJII, Akihiro Kondo +2 more | 2025-08-26 |
| 12332592 | Fixing device including heater retention member, having slits formed on face opposing inner circumferential surface of fixing belt, and image forming apparatus | Hiroki Kawasaki, Ryohei Tokunaga, Akihiro Kondo, Yuta Kitabayashi, Shunsaku FUJII +1 more | 2025-06-17 |
| 12013654 | Fixing device and image forming apparatus provided therewith | Hiroki Kawasaki, Takashi Eiki, Ryohei Tokunaga, Yuta Kitabayashi, Shunsaku FUJII +1 more | 2024-06-18 |
| 11768455 | Fixing device and image forming apparatus | Takashi Eiki, Akihiro Kondo, Ryohei Tokunaga, Yuta Kitabayashi, Hiroki Kawasaki +2 more | 2023-09-26 |
| 11644772 | Image forming apparatus | Takashi Eiki, Akihiro Kondo, Ryohei Tokunaga, Yuta Kitabayashi, Hiroki Kawasaki +2 more | 2023-05-09 |
| 11614701 | Image forming apparatus | Akihiro Kondo, Takashi Eiki, Ryohei Tokunaga, Yuta Kitabayashi, Hiroki Kawasaki +2 more | 2023-03-28 |
| 10866550 | Fixing device capable of improving heating efficiency of fixing belt, image forming apparatus | Kotatsu Kawaguchi | 2020-12-15 |