Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12332598 | Cartridge including holder for holding electrical contact surface and method of recycling cartridge | Nao Itabashi, Kazuya Kamikawa, Shuhei Hatano | 2025-06-17 |
| 12197168 | Developing cartridge including shaft and cam having cam surface | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2025-01-14 |
| 12174557 | Developer cartridge | Yuwen Wang, Isao Kishi, Junichi Hashimoto | 2024-12-24 |
| 12147171 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Junichi Hashimoto, Shota Iriyama, Keigo Nakajima, Kengo Yada | 2024-11-19 |
| 12032307 | Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridge | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2024-07-09 |
| 12032326 | Cartridge including holder for holding electrical contact surface and method of recycling cartridge | Nao Itabashi, Kazuya Kamikawa, Shuhei Hatano | 2024-07-09 |
| 12032329 | Developing cartridge including shaft and cam having cam surface | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2024-07-09 |
| 11921457 | Drum unit | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2024-03-05 |
| 11714378 | Developing cartridge including shaft and cam having cam surface | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2023-08-01 |
| 11693331 | Developer cartridge | Yuwen Wang, Isao Kishi, Junichi Hashimoto | 2023-07-04 |
| 11693353 | Cartridge including holder for holding electrical contact surface and method of recycling cartridge | Nao Itabashi, Kazuya Kamikawa, Shuhei Hatano | 2023-07-04 |
| D989856 | Toner cartridge | Yuwen Wang, Masayoshi Mita | 2023-06-20 |
| 11573503 | Developing cartridge having electrode contactable with another electrode by pivot motion of the cartridge | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2023-02-07 |
| 11561502 | Image forming apparatus including support frame with ground plate and contact spring | Hikaru Iino | 2023-01-24 |
| 11537062 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Junichi Hashimoto, Shota Iriyama, Keigo Nakajima, Kengo Yada | 2022-12-27 |
| 11454923 | Developing cartridge including cam movable relative to casing between first position and second position | — | 2022-09-27 |
| 11435690 | Cartridge including holder for holding electrical contact surface and method of recycling cartridge | Nao Itabashi, Kazuya Kamikawa, Shuhei Hatano | 2022-09-06 |
| 11415912 | Developing cartridge including agitator configured to contact peripheral surface of supply roller | Hotaka Kakutani, Kengo Yada, Ayaka Komori, Shota Iriyama, Keigo Nakajima +1 more | 2022-08-16 |
| 11385563 | Developing cartridge having first inclined surface movable together with first shaft, and second inclined surface movable together with second shaft | — | 2022-07-12 |
| 11320779 | Drum unit | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2022-05-03 |
| 11256208 | Developing cartridge including shaft and cam having cam surface | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2022-02-22 |
| 11249418 | Developer cartridge | Yuwen Wang, Isao Kishi, Junichi Hashimoto | 2022-02-15 |
| 11204579 | Drawer including photosensitive drum and frame, and image forming apparatus provided with the same | Yuwen Wang, Junichi Hashimoto, Isao Kishi | 2021-12-21 |
| 11143981 | Developing cartridge including casing and first and second agitators for agitating toner accommodated in casing | Junichi Hashimoto, Shota Iriyama, Keigo Nakajima, Kengo Yada | 2021-10-12 |
| 11061357 | Image forming apparatus with rotation-controllable photosensitive drum and movable developing roller | Keigo Nakajima, Masahito Saeki | 2021-07-13 |