Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8441270 | AC detection circuit for power supply | Sung Uk Lee, Dong Kyun Ryu, Nam Su KOO, Kyung-Hyun Kim, Seung Heun Yang +4 more | 2013-05-14 |
| 8362790 | AC detection circuit for power supply | Sung Uk Lee, Dong Kyun Ryu, Kyung-Hyun Kim, Seung Heun Yang, Jae Han Yoon +3 more | 2013-01-29 |
| 5877737 | Wide viewing angle driving circuit and method for liquid crystal display | Sang-Soo Kim | 1999-03-02 |