Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10419847 | Microspeaker enclosure with porous materials in resonance space | Kyu Dong Choi, Jong Heon Ha | 2019-09-17 |
| 9185477 | Suspension for sound transducer | Ji Hoon Kim, Joong Hak Kwon, Jung Hyung Lee | 2015-11-10 |
| 9027700 | Bonding structure of diaphragm for microspeaker | Ji Hoon Kim, Joong Hak Kwon, Jung Hyung Lee | 2015-05-12 |