Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876577 | Multi-component photoreceptor cartridge unit | Kimihide Tsukamoto | 1989-10-24 |
| 4803512 | Image forming cartridge for providing uniform corona charging | Takeshi Yoshida, Shoichiro Yoshiura | 1989-02-07 |