Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9851653 | Charging device and image forming apparatus including movable member to which cleaning member is attached | Yusuke Kitagawa, Yasuo Takayama, Sadao Okano | 2017-12-26 |
| 9817329 | Charging device including cleaning member and image forming apparatus | Sadao Okano, Yasuo Takayama, Yusuke Kitagawa | 2017-11-14 |
| 9791800 | Charging device and image forming apparatus having a rotation member with a spiral protrusion | Yasuo Takayama, Sadao Okano, Yusuke Kitagawa | 2017-10-17 |