Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12282265 | Image forming apparatus | Keiya Nishimura | 2025-04-22 |
| 11249415 | Image forming apparatus using two-component developer including toner and carrier that determines toner charge amount based on a developing current | Tamotsu Shimizu, Takahiro Okubo, Kazuhiro Nakachi | 2022-02-15 |
| 11143979 | Image forming apparatus having simple configuration and capable of measuring toner current included in developing current, and accurately calculating toner charge amount based on measurement result | Tamotsu Shimizu, Mitsuhiro Hashimoto, Takahiro Okubo, Kazuhiro Nakachi | 2021-10-12 |