Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11209752 | Developing device and image forming apparatus therewith | Akira Matayoshi, Norio Kubo, Koji Suenami, Yuji Toyota, Tamotsu Shimizu +2 more | 2021-12-28 |
| 11163243 | Image forming apparatus | Tamotsu Shimizu, Norio Kubo, Yasuhiro Tauchi, Yuji Toyota | 2021-11-02 |
| 11112722 | Image forming apparatus | Tamotsu Shimizu, Norio Kubo, Yasuhiro Tauchi, Yuji Toyota | 2021-09-07 |