Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10642150 | Photomask and method for manufacturing column spacer for color filter using the same | Dae Han Seo, Dong Chang Choi, Sang Choll Han, Jae Jin Kim, Eun Joo Choi +1 more | 2020-05-05 |