Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7138994 | Energy recovering circuit with boosting voltage-up and energy efficient method using the same | Jang Hwan Cho, Nam Kyu Lee, Feel-Soon Kang, Eung Kwan Lee, Jae Hwa Ryu +1 more | 2006-11-21 |
| 7009823 | Energy recovery circuit and energy recovery method using the same | Won Sik YOON, Feel-Soon Kang, Han Woong Park | 2006-03-07 |