| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Taiwan | 3 | |
| #3 | United States | 3 | |
| #4 | Japan | 2 | |
| #5 | Australia | 1 | |
| #6 | China | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yoo Dong Ok | 10 |
| #2 | Kim Kyung Ho | 6 |
| #3 | Yoo Ok Jung | 4 |
| #4 | Yoo Dong-Ok | 3 |
| #5 | Kim Kyung-Ho | 2 |
| #6 | Yoo Ok-Jung | 1 |
| #7 | Okjung Yoo | 1 |
| #8 | Dongok Yoo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU1187800A | Electric-acoustic transducer having moving magnet and transducing method thereof |