Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11150578 | Developing device having air discharge duct and image forming apparatus including the developing device | Yuji Kamiyama, Ikuo Makie, Yu Sasaki, Yukari Ota, Ryo Yamada | 2021-10-19 |
| 11039029 | Control system, and image forming apparatus that protect image forming apparatus installed in area where abnormality has occurred, from secondary disaster | Nobuhiro Maezawa | 2021-06-15 |
| 10979589 | Control system, management apparatus, and image forming apparatus that perform control when abnormality occurs in image forming apparatus | — | 2021-04-13 |