Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8378749 | Systems and methods for adaptive bias circuits for a power amplifier | Woonyun Kim, Jeonghu Han, Jae Joon Chang, Chang-Ho Lee | 2013-02-19 |
| 8044759 | Overlapping compact multiple transformers | Jeonghu Han, Jaejoon Chang, Woonyun Kim, Chang-Ho Lee | 2011-10-25 |
| 7936215 | Multi-segment primary and multi-turn secondary transformer for power amplifier systems | Chang-Ho Lee, Ockgoo Lee, Jeonghu Han, Kyu Hwan An, Hyungwook Kim +3 more | 2011-05-03 |
| 7880547 | Systems and methods for power amplifiers with voltage boosting multi-primary transformers | Chang-Ho Lee, Kyu Hwan An, Jaejoon Chang, Wangmyong Woo, Younsuk Kim +5 more | 2011-02-01 |
| 7812701 | Compact multiple transformers | Dong-Ho Lee, Chang-Ho Lee, Haksun Kim, Joy Laskar | 2010-10-12 |
| 7768353 | Systems and methods for switching mode power amplifier control | Jaejoon Chang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim +3 more | 2010-08-03 |
| 7746174 | Systems and methods for power amplifier with integrated passive device | Jaejoon Chang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim +3 more | 2010-06-29 |
| 7675365 | Systems and methods for power amplifiers with voltage boosting multi-primary transformers | Chang-Ho Lee, Kyu Hwan An, Jaejoon Chang, Wangmyong Woo, Younsuk Kim +5 more | 2010-03-09 |
| 7642858 | Active baluns | Dong-Ho Lee, Yunseok Kim, Sanghee Kim, Hyogeun Bae, Kijoong Kim +5 more | 2010-01-05 |
| 7576607 | Multi-segment primary and multi-turn secondary transformer for power amplifier systems | Chang-Ho Lee, Ockgoo Lee, Jeonghu Han, Kyu Hwan An, Hyungwook Kim +3 more | 2009-08-18 |
| 7560994 | Systems and methods for cascode switching power amplifiers | Ockgoo Lee, Jeonghu Han, Kyu Hwan An, Hyungwook Kim, Dong-Ho Lee +3 more | 2009-07-14 |