Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5747216 | Presensitized plate comprising two photosensitive layers wherein the layer adjacent to the support has a lower concentration of dye than the other layer | Takuo Watanabe, Yasuhito Naruse | 1998-05-05 |
| 4497888 | Light-sensitive o-quinonediazide printing plate with oxonol dye | Akira Nishioka, Yoshimasa Aotani | 1985-02-05 |
| 4259434 | Method for developing positive acting light-sensitive planographic printing plate | Hiroshi Takahashi, Hirokazu Sakaki, Akira Nishioka | 1981-03-31 |