Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11493878 | Cartridge including photosensitive drum and developing roller that can be easily separated | Koichi Ooishi, Hiroki Shimizu | 2022-11-08 |
| 11353821 | Cartridge | Akinobu Hirayama, Takahito Ueno | 2022-06-07 |