Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677103 | Positive photoresist composition | Seong Ju Kim, Ji-Hong Kim, Sun-Yi Park | 1997-10-14 |
| 5665841 | Acetal group-containing alkoxy-styrene polymers, method of preparing the same and chemical amplified photoresist composition mainly comprising the same | Ji-Hong Kim, Sun-Yi Park, Seong Ju Kim | 1997-09-09 |