Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9190545 | Optical device including three-coupled quantum well structure having multi-energy level | Yong-chul Cho, Yong-Tak Lee, Chang-young PARK, Yong-hwa Park, Gun-wu Ju | 2015-11-17 |
| 9082909 | Optical device including three coupled quantum well structure | Yong-chul Cho, Yong-Tak Lee, Chang-young PARK, Yong-hwa Park, Gun-wu Ju +1 more | 2015-07-14 |
| 9051178 | Transmissive image modulator including stacked diode structure having multi absorption modes | Yong-chul Cho, Yong-Tak Lee, Jang-woo YOU, Yong-hwa Park, Chang-young PARK +2 more | 2015-06-09 |
| 8492863 | Optical modulator | Yong-chul Cho, Yong-Tak Lee, Yong-hwa Park, Kwang-Mo PARK, Chang-Soo Park | 2013-07-23 |
| 8432599 | Optical image modulator and method of manufacturing the same | Yong-chul Cho, Yong-Tak Lee, Yong-hwa Park, Bong-Kyu Jeong | 2013-04-30 |