Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11809113 | Drum cartridge for use with a toner cartridge in an image forming apparatus | Tadao Kyotani | 2023-11-07 |
| 11809128 | Image forming apparatus capable of controlling extension of use of drum cartridge | Tadao Kyotani | 2023-11-07 |
| 11640133 | Image forming apparatus capable of calculating deterioration quantity of photosensitive drum based on the number of rotations in contact and separation states | Yusuke Ikegami, Shintaro Sakaguchi | 2023-05-02 |