Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638159 | Developing unit for an image forming apparatus and method of collecting bicomponent developer therefrom | Tsukuru Kai, Nobuo Iwata, Hidetoshi Yano, Yasushi Nakazato, Yoshiko Ishii +2 more | 1997-06-10 |