Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677103 | Positive photoresist composition | Seong Ju Kim, Joo-Hyeon Park, Sun-Yi Park | 1997-10-14 |
| 5667931 | Positive photoresist composition containing quinone diazide 5-triazine esterification compound | Dae-Youp Lee, Ki Dae KIM, Seong Ju Kim | 1997-09-16 |
| 5665841 | Acetal group-containing alkoxy-styrene polymers, method of preparing the same and chemical amplified photoresist composition mainly comprising the same | Sun-Yi Park, Seong Ju Kim, Joo-Hyeon Park | 1997-09-09 |