Issued Patents 2020
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10859942 | Developer cartridge | Yuwen Wang, Kazuaki Ooka, Junichi Hashimoto | 2020-12-08 |
| 10852685 | Drum cartridge and image forming apparatus | Yuwen Wang | 2020-12-01 |
| 10845755 | Drum unit having electrical contact surface positioned at outer surface of frame and image forming apparatus provided with the same | Nao Itabashi, Yohei Hashimoto, Kouji Watanabe, Makoto Souda | 2020-11-24 |
| 10761459 | Drum cartridge and image forming apparatus | — | 2020-09-01 |
| 10754289 | Drawer including photosensitive drum and frame, and image forming apparatus provided with the same | Yuwen Wang, Junichi Hashimoto, Kazuaki Ooka | 2020-08-25 |
| 10725427 | Drum unit | Yuwen Wang, Junichi Hashimoto, Kazuaki Ooka | 2020-07-28 |
| 10649397 | Developing cartridge including shaft and cam having cam surface | Yuwen Wang, Junichi Hashimoto, Kazuaki Ooka | 2020-05-12 |