Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9905903 | Resonator filter having a rotatable rod that presses a dielectric material into an elastic spring material | Changsoo Kwak | 2018-02-27 |
| 9774384 | Multi-beam antenna system and method for controlling output power thereof | So Hyeun YUN, Hong Yeol Lee, Chang Soo KWAK, In-Bok Yom | 2017-09-26 |
| 9614265 | Variable high frequency filter device and assembly | Chang Soo KWAK, Youn Sub Noh, So Hyeun YUN, Hong Yeol Lee, In-Bok Yom | 2017-04-04 |
| 9419345 | Dual reflector antenna with hybrid subreflector | So Hyeun YUN, Chang Soo KWAK, In-Bok Yom, Hong Yeol Lee | 2016-08-16 |
| 8970441 | Antenna apparatus | So Hyeun YUN, Hong Yeol Lee, Chang Soo KWAK, Jang Sup CHOI, In-Bok Yom | 2015-03-03 |
| 8797122 | Butler matrix | Hongyeol LEE, So Hyeun YUN, Changsoo Kwak, Jang Sup CHOI, In-Bok Yom | 2014-08-05 |
| 8766851 | Butler matrix and multi-port amplifier having the same | Hong Yeol Lee, So Hyeun YUN, In-Bok Yom | 2014-07-01 |
| 8410872 | Line filter formed on dielectric layers | Changsoo Kwak, Youn Sub Noh, In-Bok Yom | 2013-04-02 |
| 8314667 | Coupled line filter and arraying method thereof | Youn Sub Noh, Changsoo Kwak, So Hyeun YUN, Kiburm Ahn, In-Bok Yom | 2012-11-20 |
| 8294247 | High-power device having thermocouple embedded therein and method for manufacturing the same | Chang Soo KWAK, In-Bok Yom | 2012-10-23 |
| 8066445 | Apparatus for adjusting length of tension tie for cable network antenna | Changsoo Kwak, Dong Hwan Shin, In-Bok Yom | 2011-11-29 |
| 7796000 | Filter coupled by conductive plates having curved surface | Ju-Seop Lee, So Hyeun YUN, In-Bok Yom | 2010-09-14 |
| 7558814 | Realization method of self-equalized multiple passband filter | Ju-Seop Lee, In-Bok Yom, Jong Heung Park | 2009-07-07 |
| 7332982 | Waveguide diplexer of electric plane T-junction structure with resonant iris | So Hyeun YUN, In-Bok Yom, Jong Heung Park | 2008-02-19 |
| 7216566 | Screwdriver-and-nut wrench-combined tuning tool for radio frequency filter | Chang Soo KWAK, In-Bok Yom, Ju-Seop Lee, So Hyeun YUN | 2007-05-15 |