Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702620 | Ultrafine pattern forming method and ultrafine etching method using calixarene derivative as negative resist | Yoshitake Ohnishi, Jun Fujita, Alessandro Casnati, Andrea Pochini, Rocco Ungaro | 1997-12-30 |