Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754325 | Method and apparatus for producing a color-separation film by recording at least one trimmed color-separation image and a masking region simultaneously | Akira Ishida, Naotada Saito | 1988-06-28 |
| 4646144 | Method and apparatus for reproducing color separation picture image | Akira Ishida, Naotada Saito | 1987-02-24 |