Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4396703 | Retouching agent for lithographic printing plate | Hiroshi Matsumoto | 1983-08-02 |
| 4294905 | Light-sensitive lithographic printing plate and compositions therefore with multiple resins | Yoshio Okishi, Akinobu Koike | 1981-10-13 |