Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11595750 | Multi-range speaker containing multiple diaphragms | Leeg Hyun Cho, Youngil Cho | 2023-02-28 |
| 11134333 | Multi-range speaker containing multiple diaphragms | Leeg Hyun Cho, Youngil Cho | 2021-09-28 |
| 10999673 | Thin speaker with curved or angled structure | Leeg Hyun Cho, Youngil Cho | 2021-05-04 |
| 10743097 | Bidirectional speaker using bar magnets | Leeg Hyun Cho, Youngil Cho | 2020-08-11 |