Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888619 | Multi-color image forming apparatus for forming a latent image pattern by use of residual toner remaining in a developing device | — | 1989-12-19 |
| 4884096 | Multiple color image forming apparatus | Yasuhiro Kusuda | 1989-11-28 |