Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845550 | Method and apparatus for processing picture image signals | Tadashi Miyakawa, Osamu Shimazaki, Hisashi Kudo, Hideaki Kimura | 1989-07-04 |
| 4841362 | Apparatus for generating positive or negative image output signals from either positive or negative originals | Takao Shigaki, Osamu Shimazaki | 1989-06-20 |