| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 3 | |
| #2 | Republic of Korea | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Semiconductors | |
| #3 | Machines | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Semiconductor devices | |
| #3 | Sound-producing devices | |
| #4 | Generating mechanical vibrations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Youn Ju Seon | 10 |
| #2 | Ra Chang Ju | 7 |
| #3 | Na Chang Joo | 3 |
| #4 | Ju Youn Ju Seon Ra Chang | 2 |
| #5 | Chang-Ju Youn Ju-Seon Ra | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR100642913B1 | Thin speaker with piezo-film | |
| KR100634488B1 | Contacts of film speaker | |
| KR20070006328A | Film speaker |