Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885466 | Corona wire cleaning device utilizing a position detection system | Haruzi Mizuishi, Mutuko Funaki, Tetsuya Fujioka | 1989-12-05 |
| 4885612 | Cleaning device for an image forming apparatus | Tsumori Satoh | 1989-12-05 |