Issued Patents All Time
Showing 1–25 of 247 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416896 | Developing cartridge provided with cover | Nao Itabashi, Ryuya Yamazaki, Hideshi Nishiyama | 2025-09-16 |
| 12379680 | Developing cartridge having coupling and developing roller | Nao Itabashi | 2025-08-05 |
| 12366821 | Drum cartridge including electrical contact surface movable relative to drum frame | Nao Itabashi | 2025-07-22 |
| 12321110 | Developing cartridge having coupling and developing roller | Nao Itabashi | 2025-06-03 |
| 12314002 | Drum cartridge including electrical contact surface positioned at outer surface of drum frame | Koji Abe | 2025-05-27 |
| 12282270 | Developer cartridge provided with gear having engagement portions | Keita Shimizu, Takashi Shimizu, Hideshi Nishiyama, Tomonori Watanabe | 2025-04-22 |
| 12210300 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Tomitake Aratachi, Yasuo Fukamachi, Junichi Hashimoto, Saya Minoshima, Nao Itabashi +4 more | 2025-01-28 |
| 12204274 | Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade | Atsushi Fukaya, Tomoya Ichikawa, Koji Abe | 2025-01-21 |
| 12174559 | Toner cartridge having electrical contact surface that can contact electrical contact surface of drum cartridge in accordance with pivotal movement of casing | Hideshi Nishiyama, Masaaki Furukawa | 2024-12-24 |
| RE50236 | Electronic device | — | 2024-12-10 |
| 12117745 | Developing cartridge having coupling and developing roller | Nao Itabashi | 2024-10-15 |
| 12085891 | Process cartridge having drum cartridge and developing cartridge including first and second electrical contact surfaces | Koji Abe | 2024-09-10 |
| 12066784 | Image forming apparatus | Nao Itabashi, Misato Osuka, Keita Shimizu, Go Iwasa, Kazutoshi Nakamura +6 more | 2024-08-20 |
| 12061425 | Process cartridge including frame having photosensitive drum, drum coupling and flanged fixed to photosensitive drum | Atsuhisa Nakashima | 2024-08-13 |
| 12025948 | Drum cartridge including electrical contact surface movable relative to drum frame | Nao Itabashi | 2024-07-02 |
| 11886129 | Image forming apparatus to which solvent cartridge that can accommodate therein solvent is detachably attachable independently of developing cartridge | Yutaka Kakigahara, Satoshi Murata, Masataka Kamiya, Masaaki Furukawa, Yasuo Fukamachi +9 more | 2024-01-30 |
| 11762312 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Tomitake Aratachi, Yasuo Fukamachi, Junichi Hashimoto, Saya Minoshima, Nao Itabashi +4 more | 2023-09-19 |
| 11762331 | Drum cartridge including electrical contact surface movable relative to drum frame | Nao Itabashi | 2023-09-19 |
| 11733646 | Developing cartridge provided with cover | Nao Itabashi, Ryuya Yamazaki, Hideshi Nishiyama | 2023-08-22 |
| 11733643 | Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade | Atsushi Fukaya, Tomoya Ichikawa, Koji Abe | 2023-08-22 |
| 11720049 | Developing cartridge including first cam rotatable with first gear and second cam rotatable with second gear to separate developing roller from photosensitive drum | Nao Itabashi, Atsushi Fukaya, Daisuke Maeta, Keigo Nakajima | 2023-08-08 |
| 11693334 | Developing cartridge having coupling and developing roller | Nao Itabashi | 2023-07-04 |
| 11687030 | Drum cartridge including electrical contact surface positioned at outer surface of drum frame | Koji Abe | 2023-06-27 |
| 11687016 | Developing cartridge having coupling and developing roller | Nao Itabashi | 2023-06-27 |
| 11669043 | Developing cartridge provided with cover | Nao Itabashi, Ryuya Yamazaki, Hideshi Nishiyama | 2023-06-06 |