Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335407 | Sharpness emphasizing method and machine used in a picture reproducing machine | Masuo Kunisawa, Atsuro Hirata, Yasuaki Araki | 1982-06-15 |
| 4321620 | Color scanner for plate making | Riyo Shimooka, Takeshi Yamazaki, Masuo Kunisawa | 1982-03-23 |
| 4314274 | Digital color correction method | Mitsuhiko Yamada | 1982-02-02 |