Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8058558 | Printed circuit board and manufacturing method thereof | Jee-Soo Mok, Dong-Jin Park, Jun Heyoung Park, Sung Young Kim | 2011-11-15 |
| 8051559 | Method of manufacturing a multi-layer board | Jong-Kuk Hong, Jin Yong An | 2011-11-08 |
| 7977595 | Automatic discharging apparatus for closing spring in air circuit breaker and air circuit breaker having the same | Sang Chul Lee, Hong Ik Yang, Kil Young Ahn | 2011-07-12 |