Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855818 | Document reading apparatus with color filter | Kenichi Morimoto | 1989-08-08 |
| 4835571 | Corona discharging unit for use in copying machine | Etsuzi Nukushina, Yoshiyuki Nakai | 1989-05-30 |