Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9457426 | Method of manufacturing mask | Doh-Hyoung Lee | 2016-10-04 |
| 9377681 | Mask manufacturing apparatus and method of manufacturing mask using laser beam | Doh-Hyoung Lee | 2016-06-28 |