Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831392 | Image processing apparatus using pulse width modulation with improved sensitivity | — | 1989-05-16 |
| 4805013 | Image data conversion system | Yoshinobu Mita, Tadashi Yoshida, Naoto Kawamura | 1989-02-14 |