Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821115 | Color hard copy apparatus having simplified analog-to-digital conversion with adjustable threshold levels | Kenichi Matsushima, Fumihiro Tanaka, Kaneo Yamaguchi, Yoshio Shimada | 1989-04-11 |