CHOE; Joong-Seon

Patent Applications and Registrations

Patent applications and USPTO patent grants for CHOE; Joong-Seon.The latest application filed is for "quantum key distribution system and operation method thereof".

Company Profile

2.20.32

CHOE; Joong-Seon - Daejeon KR
CHOE; Joong-Seon - Daejeon-city KR
Choe; Joong Seon - Seoul KR
Choe; Joong Seon - Seo-gu KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Quantum Key Distribution System And Operation Method Thereof App 20220141008 - LIM; Kyongchun ; et al.	2022-05-05
Light Modulation Device App 20220066245 - KIM; Kap-Joong ; et al.	2022-03-03
Quantum Information Transmitter, Quantum Communication System Including The Same, And Operating Method Of Quantum Information Transmitter App 20210306077 - LIM; Kyongchun ; et al.	2021-09-30
Waveguide Photodetector App 20210255385 - CHOE; Joong-Seon ; et al.	2021-08-19
Polarization Decomposition Device App 20190353918 - KIM; Kap-Joong ; et al.	2019-11-21
Polarization Splitting And Combining Apparatus App 20190162986 - Choe; Joong-Seon ; et al.	2019-05-30
Receiver optical module Grant 9,893,810 - Lee , et al. February 13, 2	2018-02-13
Blend prepared by mixing a prepolymer and a vinyl monomer and a polymer sheet obtained therefrom Grant 9,864,104 - Park , et al. January 9, 2	2018-01-09
Multiple output quantum random number generator Grant 9,710,231 - Youn , et al. July 18, 2	2017-07-18
Multiple Output Quantum Random Number Generator App 20160335054 - YOUN; Chun Ju ; et al.	2016-11-17
Receiver Optical Module App 20160336368 - LEE; Seo Young ; et al.	2016-11-17
Method and apparatus for transmitting and receiving coherent optical OFDM Grant 9,270,381 - Youn , et al. February 23, 2	2016-02-23
Compound Containing Crosslinkable Moieties, Prepolymer, Blend And Polymer Sheet Obtained Therefrom, And Waveguide For Optical Interconnection App 20160041306 - PARK; Seung Koo ; et al.	2016-02-11
Compound containing crosslinkable moieties, prepolymer, blend and polymer sheet obtained therefrom, and waveguide for optical interconnection Grant 9,201,169 - Park , et al. December 1, 2	2015-12-01
Apparatus and method for measuring IQ imbalance for optical receiver Grant 9,166,680 - Youn , et al. October 20, 2	2015-10-20
Measuring device and method of measuring signal transmission time difference thereof Grant 9,031,421 - Choe , et al. May 12, 2	2015-05-12
Apparatus for measuring performance of coherent optical receiver Grant 8,929,731 - Youn , et al. January 6, 2	2015-01-06
Compound containing crosslinkable moieties, prepolymer, blend and polymer sheet obtained therefrom, and waveguide for optical interconnection App 20140219625 - PARK; Seung Koo ; et al.	2014-08-07
Measuring Device And Method Of Measuring Signal Transmission Time Difference Thereof App 20140205280 - CHOE; Joong-Seon ; et al.	2014-07-24
Apparatus And Method For Measuring Iq Imbalance For Optical Receiver App 20140169786 - YOUN; Chun Ju ; et al.	2014-06-19
Prepolymer prepared by a condensation reaction and a polymer sheet obtained therefrom Grant 8,716,403 - Park , et al. May 6, 2	2014-05-06
Polarization division multiplexed optical orthogonal frequency division multiplexing transmitter and receiver Grant 8,693,459 - Youn , et al. April 8, 2	2014-04-08
Optical Orthogonal Frequency Division Multiple Multiplexing Receiver And Optical Signal Receiving Method Thereof App 20130308949 - YOUN; Chun Ju ; et al.	2013-11-21
Optical orthogonal frequency division multiplexing receiver and optical signal receiving method thereof Grant 8,521,040 - Youn , et al. August 27, 2	2013-08-27
Core And Optical Waveguide App 20130156362 - KIM; Duk Jun ; et al.	2013-06-20
Optical Communication Module And Method Of Manufacturing The Same App 20130156394 - CHOE; Joong-Seon ; et al.	2013-06-20
Apparatus For Measuring Performance Of Coherent Optical Receiver App 20130156424 - YOUN; Chun Ju ; et al.	2013-06-20
Adapter assembly and method for compensating optical fibers for length difference Grant 8,272,789 - Choe , et al. September 25, 2	2012-09-25
Light emitting device and optical coupling module Grant 8,244,079 - Kim , et al. August 14, 2	2012-08-14
Method And Apparatus For Transmitting And Receiving Coherent Optical Ofdm App 20120155887 - YOUN; Chun Ju ; et al.	2012-06-21
Optical Module Comprising Optical Hybrid Using Metal Optical Waveguide And Photo Detector App 20120132792 - Choe; Joong-Seon ; et al.	2012-05-31
Optical Waveguide Structure Having Angled Mirror And Lens App 20120114293 - Choe; Joong-Seon ; et al.	2012-05-10
Adapter Assembly And Method For Compensating Optical Fibers For Length Difference App 20110142398 - Choe; Joong-Seon ; et al.	2011-06-16
Optical Orthogonal Frequency Division Multiplexing Receiver And Optical Signal Receiving Method Thereof App 20110135319 - YOUN; Chun Ju ; et al.	2011-06-09
Polarization Division Multiplexed Optical Orthogonal Frequency Division Multiplexing Transmitter And Receiver App 20110096855 - YOUN; Chun Ju ; et al.	2011-04-28
Polarization Splitter, Optical Hybrid And Optical Receiver Including The Same App 20110064422 - Kim; Jong-Hoi ; et al.	2011-03-17
Compound Containing Crosslinkable Moieties, Prepolymer, Blend And Polymer Sheet Obtained Therefrom, And Waveguide For Optical Interconnection App 20100172623 - PARK; Seung Koo ; et al.	2010-07-08
Flexible Waveguide Structure And Optical Interconnection Assembly App 20100158445 - Kim; Min-Su ; et al.	2010-06-24
Light Emitting Device And Optical Coupling Module App 20100158440 - Kim; Jin-Tae ; et al.	2010-06-24
Enhanced coplanar waveguide and optical communication module using the same Grant 7,331,723 - Yoon , et al. February 19, 2	2008-02-19
Semiconductor optical modulator integrated resistor for impedance matching using semiconductor doped layer and method of fabricating the same Grant 7,324,258 - Kwon , et al. January 29, 2	2008-01-29
Enhanced coplanar waveguide and optical communication module using the same App 20070133933 - Yoon; Ho Gyeong ; et al.	2007-06-14
Semiconductor optical modulator integrated resistor for impedance matching using semiconductor doped layer and method of fabricating the same App 20060132884 - Kwon; Yong Hwan ; et al.	2006-06-22
Photodetector Grant 7,005,687 - Choe , et al. February 28, 2	2006-02-28
Photodetector App 20040118992 - Choe, Joong Seon ; et al.	2004-06-24
Spot size converter and method for manufacturing the same, and spot size converter integrated photodetector App 20040120648 - Kwon, Yong Hwan ; et al.	2004-06-24

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