Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431478 | Etching agent for polyimide type resins and process for etching polyimide type resins with the same | Shigenori Yamaoka, Kenmatsu Isozaki, Kyotaro Nishi, Yukihiro Okabe, Masuo Mizuno | 1984-02-14 |