Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12119889 | Calibration circuit for calibrating phases and gains between channels in multi-channel beamforming system, multi-channel beamforming system including the same and channel calibration method using the same | Jinseok Park | 2024-10-15 |
| 11277118 | Variable gain phase shifter | Jin Seok Park, SEUNG HUN WANG, Seung H. Kang | 2022-03-15 |
| 11189919 | Beam-forming circuit for 5G mobile communication and radar | Jinseok Park | 2021-11-30 |
| 10848130 | Variable gain phase shifter | Jin Seok Park, SEUNG HUN WANG, Seung H. Kang | 2020-11-24 |
| 10425049 | Wireless electric power transmitter | Sung-Ku Yeo, Duk Ju Ahn, Gwang-Hyeon Jeong, Se-Ho Park, Min-Cheol Ha | 2019-09-24 |
| 10218314 | Common gate amplifier circuit and power amplifier using the same | Yun Jin, Gyu Suck KIM | 2019-02-26 |
| 10171048 | Power amplifier | Seung H. Kang, Gyu Suck KIM | 2019-01-01 |
| 9979362 | Power amplifier | Seung H. Kang, Gyu Suck KIM | 2018-05-22 |
| 9712123 | Reconfigurable power amplifier capable of selecting wide band frequency and method for selecting wide band frequency | Min Sik Park, Baek Hyun Kim, Cheon-Soo Kim, Dong Woo Kang, Jang Hong Choi | 2017-07-18 |
| 9337778 | Adaptive bias circuit and power amplifier | Chan Yong JEONG, Gyu Suck KIM, Tae Hwan Joo | 2016-05-10 |
| 9065396 | Apparatus for compensating for distortion of transmitter array in radio communication system and method for controlling the same | Mi-hyun Son, Yong Hoon Kim, Byung-tae Yoon, Jong-Wook Zeong, Dong Geun Lee +1 more | 2015-06-23 |
| 8803607 | Power amplifier | Ki Yong Son, Gyu Suck KIM, Yoo Sam Na, Bon Hoon KOO | 2014-08-12 |
| 8633771 | Power amplifier | Bon Hoon KOO, Byeong Hak Jo, Ki Yong Son, Yoo Sam Na | 2014-01-21 |
| 8542773 | Digital RF converter, digital RF modulator and transmitter including the same | Hyun-Kyu Yu, Jang Hong Choi, Hyun Ho Boo, Pil Jae Park, Mun Yang Park +2 more | 2013-09-24 |
| 8378744 | Multi-mode power amplifier | Bon Hoon KOO, Byeong Hak Jo, Ki Yong Son, Yoo Sam Na | 2013-02-19 |
| 8354883 | Power amplifier | Bon Hoon KOO, Ki Yong Son, Gyu Suck KIM, Yoo Sam Na | 2013-01-15 |
| 8344824 | Asymmetric power divider | Yu Sin Kim, Sang-Hyun Baek, Youn Suk Kim | 2013-01-01 |
| 7656347 | Quadrature radar apparatus | Choul-Young Kim | 2010-02-02 |
| 7515099 | Radar system having single circularly polarized antenna | Sang Wook Kwon, In-sang Song, Dong-Kyun Kim, Jeong Geun Kim | 2009-04-07 |
| 7372336 | Small-sized on-chip CMOS power amplifier having improved efficiency | Jae Sup Lee, Hyun-Il Kang, Seong-soo Lee, Holger Lothar, Ju-Hyun Ko +1 more | 2008-05-13 |
| 7071869 | Radar system using quadrature signal | In-sang Song, Sang Soo Ko, Jeong Geun Kim, Hong Chan Kim | 2006-07-04 |
| 6458668 | Method for manufacturing hetero junction bipolar transistor | Tae Ho Yoon, Sang Hoon Cheon, Heung Seob Koo, Sea Houng Cho | 2002-10-01 |
| 6222412 | Circuit for controlling waveform distortion at a control terminal of a radio frequency transistor | Kye-Ik Jeon, Jae-Myoung Baek, Dong Wook Kim | 2001-04-24 |
| 5796886 | Optical coupler 2.times.2 optical switch and method for optical switching therewith | Doo-Young Ha | 1998-08-18 |
| 5787212 | Optical coupler sensor with movable optical waveguide | Doo-Young Ha | 1998-07-28 |