Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9257715 | Cylindrical secondary battery | Seok-Joon Yoon, Kwang-Sik Jeon, Dae Kyu KIM | 2016-02-09 |
| 6967599 | Method of reproducing audio signals without causing tone variation in fast or slow playback mode and reproducing apparatus for the same | Won-yong CHOI, Byoung-Chul Lee, Won Sik CHOI | 2005-11-22 |