Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199789 | Image forming unit and image forming apparatus | Hiroki Shimizu, Toshiaki Takeuchi, Hideki Kakuta | 2021-12-14 |
| 11199808 | Image forming unit and image forming apparatus | Hiroki Shimizu, Naoya Asanuma | 2021-12-14 |
| 10895825 | Developer accommodating container, developing device and process cartridge | Takatoshi Hamada, Naoya Asanuma, Hideki Kakuta | 2021-01-19 |