Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845002 | Toner for development of electrostatically charged image | Shinichiro Yasuda, Yukinaga Yokota, Kazuhiko Okabe | 1989-07-04 |
| 4845005 | Dry developer composition comprising polymer binder resin and colorant | Zenbei Meiwa | 1989-07-04 |