Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4307172 | Imaging light-sensitive material with etchable opaque polyamide underlayer and light-sensitive resist overlayer | Tetsuo Ishihara | 1981-12-22 |
| 4287297 | Liquid composition for treating photosensitive laminates having alcohol-soluble polyamide layer | Tetsuo Ishihara | 1981-09-01 |