Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837122 | Deleting fluid for printing plates and method for deletion | Toshiro Kondo, Hiroshi Nishinoiri | 1989-06-06 |
| 4824760 | Lithographic printing plate with benzotriazoles improved in printing endurance | Kazuyoshi Yamamoto, Masahiko Saikawa | 1989-04-25 |