Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861396 | Aluminum alloy material plate for printing | Mamoru Matsuo, Yutaka Okuda, Kazushige Takizawa | 1989-08-29 |
| 4833065 | Process for producing support for presensitized lithographic printing plate using alkaline electrolyte | Haruo Nakanishi | 1989-05-23 |
| 4824757 | Process for preparing positive-acting photosensitive lithographic aluminum printing plate precursor using nitric acid electrokyte for graining | Koichiro Aono | 1989-04-25 |
| 4822715 | Aluminum alloy supporter for lithographic printing plate | Ryo Shoji, Chozo Fujikura, Kazushige Takizawa | 1989-04-18 |
| 4801527 | Presensitized O-quinone diazide plate having an anodized aluminum base with an amine compound containing hydrophilic layer | Shuiti Takamiya | 1989-01-31 |