Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10976662 | Positive working photosensitive material | Weihong Liu, PingHung Lu, Chunwei Chen, Yoshiharu Sakurai, Aritaka Hishida | 2021-04-13 |
| 9012126 | Positive photosensitive material | Weihong Liu, PingHung Lu, Chunwei Chen, Stephen Meyer, Medhat A. Toukhy | 2015-04-21 |
| 8906594 | Negative-working thick film photoresist | Chunwei Chen, PingHung Lu, Weihong Liu, Medhat A. Toukhy, Sangchul Kim | 2014-12-09 |
| 8841062 | Positive working photosensitive material | Weihong Liu, Ping-Hung Lu, Medhat A. Toukhy, Yoshiharu Sakurai, Aritaka Hishida | 2014-09-23 |