Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8022784 | Planar transmission line-to-waveguide transition apparatus having an embedded bent stub | Jae Jin Lee, Dong Yun Jung, Ki-Chan Eun | 2011-09-20 |
| 7792215 | Direct-conversion receiver and sub-harmonic frequency mixer thereof | Byoung Gun Choi, NoGil Myoung | 2010-09-07 |
| 7692490 | Power amplifying device having linearizer | Yun Hee Cho, Ji Hoon Kim, Yun Hwi Park | 2010-04-06 |
| 7542521 | Direct-conversion frequency mixer | Byoung Gun Choi, Seok Bong Hyun, Geum-Young Tak, Hee Tae Lee, Seong Su Park | 2009-06-02 |
| 7420418 | Circuit for improving amplification and noise characteristics for MOSFET, and frequency mixer, amplifier and oscillator using the circuit | Ho-suk Kang | 2008-09-02 |
| 7109800 | Bias circuit for providing a constant bias current to a power amplifier | Youn Sub Noh | 2006-09-19 |
| 7030701 | Transimpedance amplification apparatus with source follower structure | Dong Yun Jung, Sang Hyun Park | 2006-04-18 |
| 7026881 | Wideband variable frequency voltage controlled oscillator | Yong Hak Kim | 2006-04-11 |
| 7005923 | Adaptive bias circuit for a power amplifier | Youn Sub Noh | 2006-02-28 |
| 6914488 | Broadband amplification apparatus for bandwidth expansion | Sang Hyun Park, Dong Yun Jung | 2005-07-05 |
| 6803822 | Power amplifier having a bias current control circuit | Ji Hoon Kim, Youn Sub Noh, Joon-Hyung Kim | 2004-10-12 |
| 6744321 | Bias control circuit for power amplifier | Youn Sub Noh, Ji Hoon Kim, Joon-Hyung Kim | 2004-06-01 |
| 6406932 | Fabrication of high power semiconductor lasers with ridge waveguide structure | Jung-Kee Lee, Kyung Hyun Park, Dong-Hoon Jang | 2002-06-18 |
| 6278720 | High power semiconductor lasers with ridge waveguide structure | Jung-Kee Lee, Kyung Hyun Park, Dong-Hoon Jang | 2001-08-21 |
| 6221783 | Method of manufacturing a heterojunction bipolar transistor | Sung Ho Park, Tae-Woo Lee, Moon Pyung Park | 2001-04-24 |
| 6204102 | Method of fabricating compound semiconductor devices using lift-off of insulating film | Hyung Sup Yoon, Jin Hee Lee, Byung-Sun Park, Kwang Eui Pyun | 2001-03-20 |
| 6028876 | High power semiconductor laser device and method for fabricating the same | Jung-Kee Lee, Kyung Hyun Park, Ho Sung Cho, Dong-Hoon Jang | 2000-02-22 |
| 5895930 | Infrared photodetector with doping superlattice structure | Eung Oh, Jeon Yang, Kwang Eui Pyun | 1999-04-20 |
| 5693548 | Method for making T-gate of field effect transistor | Jin Hee Lee, Sang Soo Choi, Hyung-Sup Youn, Hyung Jun Yoo, Hyung-Moo Park | 1997-12-02 |
| 5580803 | Production method for ion-implanted MESFET having self-aligned lightly doped drain structure and T-type gate | Eung Oh, Jeon Yang | 1996-12-03 |
| 5405490 | Flat display device and method for manufacturing the same | Gyeong-Lyong Park, Sin-Chong Park, Dong-Goo Kim, Hyung Jin Yoon, Min-Kyu Song | 1995-04-11 |