Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556619 | Negative-type acetalized polyvinyl alcohol resist sensitive to ionizing radiation | Naoya Ogata, Kohei Sanui, Chiaki Azuma, Hozumi Tanaka, Kiyoshi Oguchi +1 more | 1985-12-03 |