Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814817 | Image forming device with separable units | Masaru Nishijima, Toshio Yamagishi | 1989-03-21 |
| 4796063 | Multiple-unit type copying apparatus | Akira Mitsuyama, Toshio Yamagishi | 1989-01-03 |