Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851876 | Paper discharge control method in an image forming apparatus having an intermediate tray | Haruo Yamamoto, Masamitsu Yamane | 1989-07-25 |
| 4839695 | Device for controlling charge area of photoreceptor | Haruo Yamamoto | 1989-06-13 |