Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702862 | Positive photoresist coating solution comprising a mixed solvent of propylene glycol monopropyl ether and 2-heptanone | Hayato Ohno, Taku Nakao, Shinichi Hidesaka, Hidekatsu Kohara, Toshimasa Nakayama | 1997-12-30 |