Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10448141 | Earphone | Yonghyuk Na, Jungyoun Kang, Jaeyoung Lee, Shin Han | 2019-10-15 |
| 10433061 | Ear unit and portable sound device | Yonghyuk Na, Jungyoun Kang, Jaeyoung Lee, Shin Han | 2019-10-01 |