Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11067942 | Drum unit, cartridge, electrophotographic image forming apparatus and coupling member | Tetsuo Uesugi, Masato Tanabe, Tomonori Mori, Daisuke Abe, Tadayuki Tsuda | 2021-07-20 |
| 10948872 | Process cartridge and image forming apparatus having an electrical contact portion mounted on a projection and electrically connected to a storing portion | Tsuyoshi Ogawa, Tomonori Mori, Daisuke Abe, Noriyuki Komatsu, Tadayuki Tsuda | 2021-03-16 |