Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12265344 | Image forming apparatus to suppress scattering of toner | Shinji Katagiri, Koji An | 2025-04-01 |
| 12259677 | Image forming apparatus | Shingo Ito, Toshihiko Takayama, Shuichi Tetsuno | 2025-03-25 |
| 12197160 | Image forming apparatus | Toshihiko Takayama, Shuichi Tetsuno, Shinsuke Kobayashi, Mikihiko Hamada | 2025-01-14 |
| 11994823 | Image forming apparatus | Shingo Ito, Toshihiko Takayama, Shuichi Tetsuno | 2024-05-28 |
| 11971666 | Image forming apparatus and control method, that control charging voltage according to positions of developing roller | Shinji Katagiri, Koji An, Takashi Mukai | 2024-04-30 |
| 11841649 | Image forming apparatus providing variable transfer voltage based on transfer mode | Shinji Katagiri, Koji An | 2023-12-12 |