Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845008 | Light-sensitive positive working, o-guinone diazide presensitized plate with mixed solvent | Toshimi Hirano, Keiji Akiyama | 1989-07-04 |
| 4822713 | Light-sensitive composition with fluorine containing acrylate or methacrylate copolymer surfactant | Masayuki Kamei, Toshihiko Umaba | 1989-04-18 |
| 4803145 | Light sensitive alkali developable photoresist material with fluorine surfactant containing color layer | Tamotsu Suzuki, Fumiaki Shinozaki, Mikio Totsuka | 1989-02-07 |