Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9475092 | Electro-acoustic transducer and method of manufacturing the same | Dong-sik Shim, Seog-woo Hong, Chang-jung Kim | 2016-10-25 |
| 9319800 | Electro acoustic transducer | Seog-woo Hong, Hyung-jae Shin, Dong-sik Shim, Byung-gil Jeong | 2016-04-19 |