Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9851635 | Photoresist composition and method of manufacturing substrate for display device by using the same | Chadong Kim, Hoon Kang, Wooyong Sung, Hikuk Lee, Changhoon Kim +6 more | 2017-12-26 |
| 7880547 | Systems and methods for power amplifiers with voltage boosting multi-primary transformers | Chang-Ho Lee, Kyu Hwan An, Ki Seok Yang, Jaejoon Chang, Wangmyong Woo +5 more | 2011-02-01 |
| 7768353 | Systems and methods for switching mode power amplifier control | Jaejoon Chang, Ki Seok Yang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee +3 more | 2010-08-03 |
| 7746174 | Systems and methods for power amplifier with integrated passive device | Ki Seok Yang, Jaejoon Chang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee +3 more | 2010-06-29 |
| 7675365 | Systems and methods for power amplifiers with voltage boosting multi-primary transformers | Chang-Ho Lee, Kyu Hwan An, Ki Seok Yang, Jaejoon Chang, Wangmyong Woo +5 more | 2010-03-09 |
| 7548134 | Transmission line transformer | Changkun Park, Songcheol Hong | 2009-06-16 |
| 7397305 | High output power amplifier with adjustable voltage transformation ratio of transformer | Songcheol Hong | 2008-07-08 |