Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8345912 | Earphone having under hanger | Jung Hun Kwak | 2013-01-01 |
| 8320832 | Wireless audio output device, wireless audio output system including the same and control method thereof | Il Dong Kang, Oguro Masaki, Young-gyoo Choi, Jung Hun Kwak, Sang-Geun Kim | 2012-11-27 |