Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9782861 | Metal sheet holding device for manufacturing pattern mask | Choong-Ho Lee, Sung Sik Yun, Doh-Hyoung Lee | 2017-10-10 |
| 9656291 | Method of manufacturing a metal mask | Choong-Ho Lee, Doh-Hyoung Lee, Sung Sik Yun, Da-Hee Jeong, Jun Ho Jo | 2017-05-23 |
| 9643280 | Laser processing apparatus | Doh-Hyoung Lee, Choong-Ho Lee, Sung Sik Yun, Arnold Gillner, Nelli Hambach +4 more | 2017-05-09 |
| 9592570 | Laser processing apparatus | Doh-Hyoung Lee, Choong-Ho Lee, Sung Sik Yun, Arnold Gillner, Nelli Hambach +4 more | 2017-03-14 |
| 9502478 | Organic matter vapor deposition device and organic light emitting display manufactured thereby | Joo-Hwa Lee | 2016-11-22 |
| 9399305 | Sheet cutting apparatus and sheet cutting method using the same | Sung Sik Yun, Choong-Ho Lee, Doh-Hyoung Lee | 2016-07-26 |