Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11442389 | Image forming apparatus including transfer unit and capable of determining lifetime of transfer unit | Tadao Kyotani, Keita Suzuki | 2022-09-13 |
| 11378895 | Image forming apparatus with developing roller separation processing | Toshiyuki Sano, Yusuke Ikegami, Junya Sumida, Shintaro Sakaguchi | 2022-07-05 |
| 11378913 | Image forming apparatus capable of controlling extension of use of drum cartridge | Tadao Kyotani | 2022-07-05 |
| 11256211 | Image forming apparatus capable of controlling extension of use of drum cartridge | Tadao Kyotani | 2022-02-22 |