Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8767999 | Slimline speaker | — | 2014-07-01 |
| 7502486 | Plane speaker having coil plate guide device | Byung-Wan Han | 2009-03-10 |
| 7480392 | Plate type speaker using horizontal vibration voice coil | Byung-Wan Han | 2009-01-20 |