Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819020 | Fixing roller and its manufacturing process | Moriyoshi Matsushiro | 1989-04-04 |
| 4812873 | Heat fixing unit in an electrophotographic copying apparatus | Sanji Inagaki, Hiroshi Fukao, Tetsuya Yamada, Yoshihiro Hattori | 1989-03-14 |