Inventor · disambiguated record
Yoo Sam Na
Also filed as: NA YOO S · NA YOO SAM
58 granted patents·14 pending applications·199 citations·filing 2003–2021
98Inventor score
Top patents by PatentIndex Score
72 records- 0189US10505579B2Radio frequency switching device for fast switching operationSAMSUNG ELECTRO MECH·Filed 2019·Granted Dec 10, 2019·6 cites·14 claims
- 0289US7525395B2Step attenuatorSAMSUNG ELECTRO MECH·Filed 2008·Granted Apr 28, 2009·20 cites·6 claims
- 0388US10778175B2Coupler circuit with phase compensation functionSAMSUNG ELECTRO MECH·Filed 2018·Granted Sep 15, 2020·5 cites·13 claims
- 0488US9628070B2Radio frequency switch circuit and control method thereofSAMSUNG ELECTRO MECH·Filed 2015·Granted Apr 18, 2017·7 cites·18 claims
- 0587US11335991B2Electronic device with radio-frequency moduleSAMSUNG ELECTRO MECH·Filed 2020·Granted May 17, 2022·2 cites·26 claims
- 0687US10979007B2Amplification device with isolation characteristicsSAMSUNG ELECTRO MECH·Filed 2019·Granted Apr 13, 2021·6 cites·12 claims
- 0787US10886058B2Inductor and low-noise amplifier including the sameSAMSUNG ELECTRO MECH·Filed 2019·Granted Jan 5, 2021·4 cites·10 claims
- 0886US9197280B1Radio frequency switchSAMSUNG ELECTRO MECH·Filed 2015·Granted Nov 24, 2015·6 cites·11 claims
- 0985US10044341B2Radio frequency switch circuit and apparatus having built-in couplerSAMSUNG ELECTRO MECH·Filed 2016·Granted Aug 7, 2018·4 cites·31 claims
- 1084US10050609B2Antenna switch circuit with improved harmonic suppression characteristicSAMSUNG ELECTRO MECH·Filed 2017·Granted Aug 14, 2018·4 cites·18 claims
- 1184US9209854B2Radio frequency switching circuit with advanced isolation characteristicsSAMSUNG ELECTRO MECH·Filed 2014·Granted Dec 8, 2015·6 cites·18 claims
- 1282US11228337B2Apparatus with transmission route switching of radio frequency signals and radio frequency moduleSAMSUNG ELECTRO MECH·Filed 2020·Granted Jan 18, 2022·2 cites·17 claims
- 1381US9876496B2Radio frequency switch circuitSAMSUNG ELECTRO MECH·Filed 2015·Granted Jan 23, 2018·4 cites·12 claims
- 1480US10903799B2Variable gain low noise amplifying apparatus with phase distortion compensationSAMSUNG ELECTRO MECH·Filed 2018·Granted Jan 26, 2021·3 cites·19 claims
- 1580US8830000B2Multi-band amplifier and method of amplifying multi-bandJEONG MOON SUK·Filed 2012·Granted Sep 9, 2014·12 cites·13 claims
- 1680US8183928B2CMOS power amplifier and temperature compensation circuit thereofKIM YOO HWAN·Filed 2011·Granted May 22, 2012·8 cites·9 claims
- 1780US8031002B2Buffer amplifierSAMSUNG ELECTRO MECH·Filed 2009·Granted Oct 4, 2011·10 cites·9 claims
- 1879US10826442B2Variable gain low noise amplifier with phase compensationSAMSUNG ELECTRO MECH·Filed 2018·Granted Nov 3, 2020·3 cites·22 claims
- 1979US7973606B2Fractional-N frequency synthesizer and method thereofSAMSUNG ELECTRO MECH·Filed 2009·Granted Jul 5, 2011·10 cites·8 claims
- 2076US7636009B2Bias current generating apparatus with adjustable temperature coefficientSAMSUNG ELECTRO MECH·Filed 2008·Granted Dec 22, 2009·9 cites·14 claims
- 2173US8055228B2Received signal strength indicator self-calibrating gain of limiterSAMSUNG ELECTRO MECH·Filed 2008·Granted Nov 8, 2011·5 cites·11 claims
- 2271US8493169B2Transformer and method of manufacturing the sameSAMSUNG ELECTRO MECH·Filed 2012·Granted Jul 23, 2013·2 cites·19 claims
- 2370USRE49317ETransformer and method of manufacturing the sameSAMSUNG ELECTRO MECH·Filed 2019·Granted Nov 29, 2022·0 cites·28 claims
- 2469US9531375B2Radio frequency switch circuitSAMSUNG ELECTRO MECH·Filed 2015·Granted Dec 27, 2016·2 cites·15 claims
- 2569US8143950B2Power amplifier break down characteristicHWANG HYEON SEOK·Filed 2010·Granted Mar 27, 2012·5 cites·6 claims
- 2669US8093948B2Power amplifierKIM YOO HWAN·Filed 2010·Granted Jan 10, 2012·3 cites·6 claims
- 2769US7956692B2Wide-band amplifier circuit with improved gain flatnessSAMSUNG ELECTRO MECH·Filed 2009·Granted Jun 7, 2011·6 cites·10 claims
- 2868US8018285B2Step variable gain amplifierSAMSUNG ELECTRO MECH·Filed 2009·Granted Sep 13, 2011·6 cites·4 claims
- 2966US9231780B2Radio frequency switching circuit and electronic deviceSAMSUNG ELECTRO MECH·Filed 2014·Granted Jan 5, 2016·2 cites·20 claims
- 3065US11658393B2Electronic device with radio-frequency moduleSAMSUNG ELECTRO MECH·Filed 2021·Granted May 23, 2023·0 cites·21 claims
- 3164US10686413B2Low noise amplifier circuit with multiple-input multiple-output (MIMO) structureSAMSUNG ELECTRO MECH·Filed 2018·Granted Jun 16, 2020·1 cites·18 claims
- 3263US8482355B2Power amplifierJO BYEONG HAK·Filed 2011·Granted Jul 9, 2013·3 cites·3 claims
- 3362US7953383B2Dual band receiverSAMSUNG ELECTRO MECH·Filed 2008·Granted May 31, 2011·5 cites·12 claims
- 3460US8618972B1Analog-to-digital signal conversion method and apparatus thereforNA YOO SAM·Filed 2012·Granted Dec 31, 2013·3 cites·18 claims
- 3560US7177895B2Linear channel select filterSAMSUNG ELECTRO MECH·Filed 2003·Granted Feb 13, 2007·8 cites·18 claims
- 3659US9847781B2Radio frequency switch including filter circuitSAMSUNG ELECTRO MECH·Filed 2015·Granted Dec 19, 2017·1 cites·13 claims
- 3756US10505517B2Radio frequency switch circuit and apparatus having built-in couplerSAMSUNG ELECTRO MECH·Filed 2018·Granted Dec 10, 2019·0 cites·22 claims
- 3855US8952755B2Power amplifierSAMSUNG ELECTRO MECH·Filed 2012·Granted Feb 10, 2015·1 cites·15 claims
- 3955US8354883B2Power amplifierSAMSUNG ELECTRO MECH·Filed 2011·Granted Jan 15, 2013·2 cites·9 claims
- 4055US7206565B2Device for generating wide tunable frequency using frequency dividerSAMSUNG ELECTRO MECH·Filed 2003·Granted Apr 17, 2007·4 cites·5 claims
- 4153US10826151B2Directional coupler circuit and power amplifying device with phase compensation functionSAMSUNG ELECTRO MECH·Filed 2019·Granted Nov 3, 2020·0 cites·16 claims
- 4253US7570935B2Derivative superposition circuit for linearizationSAMSUNG ELECTRO MECH·Filed 2006·Granted Aug 4, 2009·2 cites·19 claims
- 4352US10274981B2Voltage dropping apparatus, voltage switching apparatus, and internal voltage supply apparatus using the sameSAMSUNG ELECTRO MECH·Filed 2017·Granted Apr 30, 2019·0 cites·8 claims
- 4452US8736376B2Power amplifier module having bias circuitKIM GYU SUCK·Filed 2012·Granted May 27, 2014·2 cites·3 claims
- 4552US8378744B2Multi-mode power amplifierSAMSUNG ELECTRO MECH·Filed 2011·Granted Feb 19, 2013·1 cites·10 claims
- 4651US8031004B2Active balun with stacked structureSAMSUNG ELECTRO MECH·Filed 2009·Granted Oct 4, 2011·1 cites·6 claims
- 4749US9197253B2RF switchSAMSUNG ELECTRO MECH·Filed 2014·Granted Nov 24, 2015·0 cites·17 claims
- 4848US11502710B2Front-end moduleSAMSUNG ELECTRO MECH·Filed 2020·Granted Nov 15, 2022·0 cites·16 claims
- 4948US10903836B2Radio-frequency switch with voltage equalizationSAMSUNG ELECTRO MECH·Filed 2020·Granted Jan 26, 2021·0 cites·25 claims
- 5048US8531243B2Bias controlling apparatusYOO HYUN HWAN·Filed 2012·Granted Sep 10, 2013·1 cites·15 claims
Showing the top 50 of 72 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yoo Sam Na files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →