Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10727556 | Multimode microwave filter | Changsoo Kwak, In-Bok Yom, Hongyeol LEE | 2020-07-28 |
| 9774384 | Multi-beam antenna system and method for controlling output power thereof | Man Seok UHM, 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, Man Seok UHM, Hong Yeol Lee, In-Bok Yom | 2017-04-04 |
| 9419345 | Dual reflector antenna with hybrid subreflector | Chang Soo KWAK, Man Seok UHM, In-Bok Yom, Hong Yeol Lee | 2016-08-16 |
| 8970441 | Antenna apparatus | Hong Yeol Lee, Chang Soo KWAK, Man Seok UHM, Jang Sup CHOI, In-Bok Yom | 2015-03-03 |
| 8903684 | Determination method and apparatus for the number of multi-feed elements in multi-beam antenna | — | 2014-12-02 |
| 8797122 | Butler matrix | Hongyeol LEE, Man Seok UHM, Changsoo Kwak, Jang Sup CHOI, In-Bok Yom | 2014-08-05 |
| 8766863 | Antenna simply manufactured according to frequency characteristic | — | 2014-07-01 |
| 8766851 | Butler matrix and multi-port amplifier having the same | Hong Yeol Lee, Man Seok UHM, In-Bok Yom | 2014-07-01 |
| 8422232 | System for controlling temperature of antenna module | Changsoo Kwak, In-Bok Yom, Donghwan Shin, Ho-Jin Lee | 2013-04-16 |
| 8339330 | Frequency selective surface structure for multi frequency bands | In-Bok Yom, Ho-Jin Lee, Ji-Whan Ko | 2012-12-25 |
| 8314667 | Coupled line filter and arraying method thereof | Man Seok UHM, Youn Sub Noh, Changsoo Kwak, Kiburm Ahn, In-Bok Yom | 2012-11-20 |
| 7796000 | Filter coupled by conductive plates having curved surface | Man Seok UHM, Ju-Seop Lee, In-Bok Yom | 2010-09-14 |
| 7332982 | Waveguide diplexer of electric plane T-junction structure with resonant iris | Man Seok UHM, In-Bok Yom, Jong Heung Park | 2008-02-19 |
| 7216566 | Screwdriver-and-nut wrench-combined tuning tool for radio frequency filter | Chang Soo KWAK, Man Seok UHM, In-Bok Yom, Ju-Seop Lee | 2007-05-15 |