Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10976680 | Image forming apparatus in which AC-type biasing is adopted for charging or development | Norio Tomiie | 2021-04-13 |
| 10901339 | Image forming apparatus which suppresses image defects due to interference between a charging alternating-current frequency and a developing alternating-current frequency | Norio Tomiie | 2021-01-26 |