Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11086267 | Image forming apparatus and developing cartridge | Masato Tanabe, Masakazu Tatsumi | 2021-08-10 |
| 10983475 | Image forming apparatus and image forming unit | Kazutaka Sueshige, Takayuki Yada, Akinobu Hirayama | 2021-04-20 |
| 10969730 | Image forming apparatus and image forming unit | Kazutaka Sueshige, Takayuki Yada, Tetsuo Uesugi, Toru Oguma | 2021-04-06 |