Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10999610 | Service method and system for providing multi-track video contents | Sung Tak Cho, Kyung-Ryul Sun, Sungho Kim, Yoosub Song, Joon-kee Chang +3 more | 2021-05-04 |
| 10270080 | Battery pack | Jechul Yeoun | 2019-04-23 |
| 10045072 | Content reproducing apparatus and method, and content providing apparatus and method | Sung Tak Cho, Kyung-Ryul Sun, Sung Ho Kim, Yoo Sub Song, Joon-kee Chang +3 more | 2018-08-07 |
| 9398339 | Image display apparatus and method for operating the same | Kwangsoo Choi, Jihe Suk, Hyojung Oh, Jimin Heo, Myongwon Suh | 2016-07-19 |
| 8474030 | User authentication system using IP address and method thereof | Inhyuk CHOI, Youngsik Jung, Minchol Song, Jongwon Paek, Jungyun Son +3 more | 2013-06-25 |