Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9832564 | Multi-pole earphone plug and adjustable multi-pole audio connector including the same | Juhee CHANG, Sangju Lee, Cheol Yong Park, Ho-Chul Hwang | 2017-11-28 |
| 9741334 | Active noise cancellation in audio output device | Cheol Yong Park, Ju-Hee CHANG, Se Jeong Na, Sung-Kyu Park, In Seok SHIM +1 more | 2017-08-22 |