Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645970 | Weak base developable positive photoresist composition containing quinonediazide compound | Hua-Chi Cheng, Chao H. Tseng | 1997-07-08 |
| 5641595 | Manufacture of color filters by incremental exposure method | Hsien-Kuang Lin, Jim-Chyuan Shieh, Chao Niu, Chao H. Tseng, Hwa Cheng | 1997-06-24 |
| 5631111 | Method for producing color filters | Chao Niu, Hsien-Kuang Lin, Hua-Chi Cheng | 1997-05-20 |