Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10854692 | Display device using semiconductor light emitting device | Younghak Chang | 2020-12-01 |
| 9184340 | Non-polar nitride-based light emitting device and method for fabricating the same | Younghak Chang, Hyunggu Kim, Kyuhyun Bang | 2015-11-10 |
| 9136119 | Non-polar substrate having hetero-structure and method for manufacturing the same, and nitride-based light emitting device using the same | Younghak Chang, Hyunggu Kim, Kyuhyun Bang | 2015-09-15 |