| 1 | BEAM-FORMING CIRCUIT FOR 5G MOBILE COMMUNICATION AND RADAR Park, Jinseok; Hong, Songcheol |
| 2 | COMMON GATE AMPLIFIER CIRCUIT AND POWER AMPLIFIER USING SAME Jin, Yun Su; Kim, Gyu Suck; Hong, Songcheol |
| 3 | Differential amplifier using body-source cross coupling Hong, Songcheol; Lee, Dong-ho |
| 4 | Integrated device of cantilever and light source Hong, Songcheol; Jeon, Sookun |
| 5 | Non-volatile memory device using AFM and method for operating the device Sohn, Hee Soo; Hong, Songcheol |
| 6 | Optical coupler 2.times.2 optical switch and method for optical switching therewith Hong, Songcheol; Ha, Doo-Young |
| 7 | Optical coupler sensor with movable optical waveguide Hong, Songcheol; Ha, Doo-Young |
| 8 | Photo detect device using quantum dots and materialization method thereof Cho, Taehee; Hong, Songcheol, 2002-07-18 |
| 9 | Power amplifier Kang, Seung Hoon; Kim, Gyu Suck; Hong, Songcheol, 2019-01-01 |
| 10 | Power amplifier Kang, Seung Hoon; Kim, Gyu Suck; Hong, Songcheol, 2018-05-22 |
| 11 | Power amplifier using transmission line transformer Hong, Songcheol; Park, Changkun |
| 12 | Power generating circuit and switching circuit Hong, Songcheol; Baek, Dong Hyun; Yun, Sun Woo; Park, Sung Hwan; Kim, Yu Sin, 2019-01-09 |
| 13 | Quadrature radar apparatus Hong, Songcheol; Kim, Choul-Young, 2010-02-02 |
| 14 | Variable gain phase shifter Hong, Songcheol; Park, Jin-seok; Wang, Seung-hun; Kang, Seung-hoon |
| 15 | VARIABLE GAIN PHASE SHIFTER Hong, Songcheol; Park, Jin-seok; Wang, Seung-hun; Kang, Seung-hoon |
| 16 | Vector sum circuit and phase controller using the same Yeo, Sungku; Jeong, Gwanghyeon; Hong, Songcheol; Park, Jaeseok; Wang, Seunghun; Ryu, Youngho; Lim, Junhan |
| 17 | WIRELESS ELECTRIC POWER TRANSMITTER Yeo, Sung-Ku; Hong, Songcheol; Ahn, Duk-Ju; Jeong, Gwang-Hyeon; Park, Se-Ho; Ha, Min-Cheol, 2019-09-24 |
| 18 | WIRELESS POWER RECEIVING APPARATUS CAPABLE OF IMPROVING EFFICIENCY AND POWER DELIVERY USING MODULATION OF EFFECTIVE LOAD RESISTANCE OF RECEIVING END Hong, Songcheol; Ahn, Duk Ju, 2018-03-30 |
