Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9151711 | Optoelectronic shutter, method of operating the same and optical apparatus including the optoelectronic shutter | Yong-chul Cho, Jae Hyung Jang, Yong-hwa Park, Chang-Soo Park | 2015-10-06 |
| 8675272 | Optical modulator, methods of manufacturing and operating the same and optical apparatus including the optical modulator | Yong-chul Cho, Jae Hyung Jang, Yong-hwa Park, Chang-Soo Park | 2014-03-18 |
| 8581166 | Optoelectronic shutter, method of operating the same and optical apparatus including the optoelectronic shutter | Yong-chul Cho, Jae Hyung Jang, Yong-hwa Park, Chang-Soo Park | 2013-11-12 |
| 8027589 | All-optical frequency upconverter and all-optical frequency upconversion method in radio-over-fiber system | Hyoung Jun Kim | 2011-09-27 |
| 6670652 | Monolithically integrated E/D mode HEMT and method for fabricating the same | — | 2003-12-30 |
| 6586272 | Method for manufacturing MSM photodetector or using a HEMT structure incorporating a low-temperature grown semiconductor | — | 2003-07-01 |
| 6410944 | Epitaxial structure for low ohmic contact resistance in p-type GaN-based semiconductors | — | 2002-06-25 |
| 5541443 | Active optical logic device incorporating a surface-emitting laser | Yong Hee Lee | 1996-07-30 |