Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8155337 | Compatible circuit and method for 4- and 5-pole earphones and portable device using the same | Kyu Won Choi, Nam Hyung Kim, Mi Jin Kim | 2012-04-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8155337 | Compatible circuit and method for 4- and 5-pole earphones and portable device using the same | Kyu Won Choi, Nam Hyung Kim, Mi Jin Kim | 2012-04-10 |