Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6730769 | Novolak resin, production process thereof and positive photoresist composition using the novolak resin | Akira Katano, Mitsuo Hagihara, Toshiaki Tachi | 2004-05-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6730769 | Novolak resin, production process thereof and positive photoresist composition using the novolak resin | Akira Katano, Mitsuo Hagihara, Toshiaki Tachi | 2004-05-04 |