Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9676063 | Method of manufacturing a metal mask by laser cutting | Doh-Hyoung Lee | 2017-06-13 |
| 9656291 | Method of manufacturing a metal mask | Choong-Ho Lee, Tong-Jin Park, Doh-Hyoung Lee, Sung Sik Yun, Jun Ho Jo | 2017-05-23 |