Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872946 | Method of manufacturing supports for lithographic printing plate | Tsutomu Kakei, Shinichiro Minato | 1989-10-10 |
| 4851091 | Process for producing support for lithographic printing plate | Kazutaka Oda, Tsutomu Kakei | 1989-07-25 |