Joong Ho CHOI

Person

Seongnam-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Wireless power transmitter
- Patent number 9,923,554
- Issue date Mar 20, 2018
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Byung Joo Hong
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Start-up circuit and power device using the same
- Patent number 9,755,502
- Issue date Sep 5, 2017
- University of Seoul Industry Cooperation Foundation
- Sang Hyun Cha
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Phase shift circuit and power factor correction circuit including t...
- Patent number 9,270,165
- Issue date Feb 23, 2016
- Samsung Electro-Mechanics Co., Ltd.
- Yu Jin Jang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Phase shift circuit and power factor correction circuit including t...
- Patent number 9,252,655
- Issue date Feb 2, 2016
- Samsung Electro-Mechanics Co., Ltd.
- Jeong Mo Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power factor correction circuit
- Patent number 9,225,235
- Issue date Dec 29, 2015
- Samsung Electro-Mechanics Co., Ltd.
- Yu Jin Jang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device and control circuit thereof
- Patent number 9,066,395
- Issue date Jun 23, 2015
- Samsung Electro-Mechanics Co., Ltd.
- Dae Hoon Han
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Illumination driving apparatus for light emitting diode and method...
- Patent number 9,066,399
- Issue date Jun 23, 2015
- Samsung Electro-Mechanics Co., Ltd.
- Deuk Hee Park
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Logic device and method of operating the same
- Patent number 8,963,580
- Issue date Feb 24, 2015
- Samsung Electronics Co., Ltd.
- Hyun-sik Choi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
IC circuit
- Patent number 8,907,719
- Issue date Dec 9, 2014
- Samsung Electro-Mechanics Co., Ltd.
- Joon Youp Sung
- G05 - CONTROLLING REGULATING
Information Patent Grant
Multi-valued logic device having nonvolatile memory device
- Patent number 8,861,268
- Issue date Oct 14, 2014
- Samsung Electronics Co., Ltd.
- Ho-jung Kim
- G11 - INFORMATION STORAGE
Information Patent Grant
Cooperative filtering algorithm-based personal preference program r...
- Patent number 8,799,936
- Issue date Aug 5, 2014
- Byuck San Power, Ltd.
- Joong-in Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power factor correction circuit for correcting power factor
- Patent number 8,791,677
- Issue date Jul 29, 2014
- Samsung Electro-Mechanics Co., Ltd.
- Jeong Mo Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Illumination driving apparatus
- Patent number 8,779,682
- Issue date Jul 15, 2014
- Samsung Electro-Mechanics Co., Ltd.
- Joong Ho Choi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Relaxation oscillator
- Patent number 8,289,091
- Issue date Oct 16, 2012
- Samsung Electro-Mechanics Co., Ltd.
- Jeong Mo Yang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor devices having a trench in a side portion of a conduc...
- Patent number 7,811,921
- Issue date Oct 12, 2010
- Samsung Electronics Co., Ltd.
- Chang-Hyeon Nam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ballast control system for HID lamp using Zigbee
- Patent number 7,656,097
- Issue date Feb 2, 2010
- GRS Consulting, Inc.
- Joong-Kwen Choi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Enhanced bluetooth communication system
- Patent number 7,596,353
- Issue date Sep 29, 2009
- Samsung Electronics Co., Ltd.
- Woo-Suk Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor devices having a trench in a side portion of a conduc...
- Patent number 7,545,046
- Issue date Jun 9, 2009
- Samsung Electronics Co., Ltd.
- Chang-Hyeon Nam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid toner for electrophotography and method of preparing the same
- Patent number 7,371,496
- Issue date May 13, 2008
- Samsung Electronics Co., Ltd.
- Nam-Jeong Lee
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Liquid ink composition and method of producing a liquid ink composi...
- Patent number 7,259,193
- Issue date Aug 21, 2007
- Samsung Electronics Co., Ltd.
- Kyung-yol Yon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Oxidation catalyst unit and a wet-type electrophotographic image fo...
- Patent number 7,245,846
- Issue date Jul 17, 2007
- Samsung Electronics Co., Ltd.
- Kwoang-joe Seorl
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Liquid electrophotography printer having exhaust system with oxidat...
- Patent number 7,149,454
- Issue date Dec 12, 2006
- Samsung Electronics Co., Ltd.
- Kyung-yol Yon
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Database synchronization apparatus in element management system and...
- Patent number 7,124,151
- Issue date Oct 17, 2006
- LG-Nortel Co., Ltd.
- Joong-Kyu Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wet-type electrophotographic printer with photocatalystic filter
- Patent number 7,027,752
- Issue date Apr 11, 2006
- Samsung Electronics Co., Ltd.
- Kyung-yol Yon
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Gas exhausting apparatus for wet electrophotographic image forming...
- Patent number 6,996,352
- Issue date Feb 7, 2006
- Samsung Electronics Co., Ltd.
- Joong-hwan Choi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Liquid developer for developing latent electrostatic image and meth...
- Patent number 6,951,703
- Issue date Oct 4, 2005
- Samsung Electronics Co., Ltd.
- Seong-joon Chae
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus and method for measuring the bit error ratio of a transmi...
- Patent number 6,879,628
- Issue date Apr 12, 2005
- LG Information & Communications, Ltd.
- Joong-Kyu Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Organic anti-reflective coating material and preparation thereof
- Patent number 6,803,172
- Issue date Oct 12, 2004
- Hynix Semiconductor Inc.
- Min-ho Jung
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Scent diffusion apparatus and method
- Patent number 6,371,451
- Issue date Apr 16, 2002
- Korea Institute of Science and Technology
- Joong Ho Choi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Delay time compensation circuit for clock buffer
- Patent number 6,198,326
- Issue date Mar 6, 2001
- Hyundai Electronics Industries Co., Ltd.
- Joong-Ho Choi
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
WIRELESS POWER TRANSMITTER
- Publication number 20170118722
- Publication date Apr 27, 2017
- Samsung Electro-Mechanics Co., Ltd.
- Byung Joo HONG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RECTIFIER AND METHOD OF CONTROLLING THE SAME
- Publication number 20160373023
- Publication date Dec 22, 2016
- Samsung Electro-Mechanics Co., Ltd.
- Byung Joo HONG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
START-UP CIRCUIT AND POWER DEVICE USING THE SAME
- Publication number 20150318779
- Publication date Nov 5, 2015
- Samsung Electro-Mechanics Co., Ltd.
- Sang Hyun CHA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
GATE DRIVER INCLUDING LEVEL SHIFTER AND METHOD FOR DRIVING THE SAME
- Publication number 20150214929
- Publication date Jul 30, 2015
- Samsung Electro-Mechanics Co., Ltd.
- Soo Woong LEE
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
GATE DRIVING CIRCUIT, AND SWITCHING APPARATUS AND POWER SUPPLY APPA...
- Publication number 20150117065
- Publication date Apr 30, 2015
- Samsung Electro-Mechanics Co., Ltd.
- Sang Hyun CHA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PFC CONTROL CIRCUIT, ACTIVE PFC CIRCUIT AND PFC CONTROL METHOD
- Publication number 20150102786
- Publication date Apr 16, 2015
- Samsung Electro-Mechanics Co., Ltd.
- Byung Hoon KIM
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER SUPPLY APPARATUS AND CONTROL CIRCUIT THEREOF
- Publication number 20150002043
- Publication date Jan 1, 2015
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Dae Hoon HAN
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
POWER SUPPLY DEVICE AND CONTROL CIRCUIT THEREOF
- Publication number 20150002044
- Publication date Jan 1, 2015
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Dae Hoon HAN
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
POWER FACTOR CORRECTION CIRCUIT
- Publication number 20140185339
- Publication date Jul 3, 2014
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Yu Jin JANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PHASE SHIFT CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT INCLUDING T...
- Publication number 20140177295
- Publication date Jun 26, 2014
- Samsung Electro-Mechanics Co., Ltd.
- Yu Jin JANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PHASE SHIFT CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT INCLUDING T...
- Publication number 20140176089
- Publication date Jun 26, 2014
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Jeong Mo YANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ILLUMINATION DRIVING APPARATUS FOR LIGHT EMITTING DIODE AND METHOD...
- Publication number 20140035473
- Publication date Feb 6, 2014
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Deuk Hee PARK
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Cooperative Filtering Algorithm-Based Personal Preference Program R...
- Publication number 20130263168
- Publication date Oct 3, 2013
- Joong-in Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CONVERTER DRIVING CIRCUIT, DUAL-MODE LLC RESONANT CONVERTER SYSTEM,...
- Publication number 20130194832
- Publication date Aug 1, 2013
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Dae Hoon Han
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
IC CIRCUIT
- Publication number 20130127525
- Publication date May 23, 2013
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Joon Youp Sung
- G05 - CONTROLLING REGULATING
Information Patent Application
MULTI-VALUED LOGIC DEVICE HAVING NONVOLATILE MEMORY DEVICE
- Publication number 20130121059
- Publication date May 16, 2013
- University of Seoul Foundation of Industry- Academic Cooperation
- Ho-jung Kim
- G11 - INFORMATION STORAGE
Information Patent Application
LOGIC DEVICE AND METHOD OF OPERATING THE SAME
- Publication number 20130049802
- Publication date Feb 28, 2013
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Hyun-sik CHOI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
LIGHT EMITTING DIODE DRIVING DEVICE AND METHOD THEREOF
- Publication number 20130033191
- Publication date Feb 7, 2013
- SAMSUNG ELECTRO-MECHANICS CO., LTD./University of Seoul Industry Cooperation...
- Joong Ho CHOI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LIGHT EMITTING DIODE DRIVER HAVING OFFSET VOLTAGE COMPENSATING FUNC...
- Publication number 20120319609
- Publication date Dec 20, 2012
- SAMSUNG ELECTRO-MECHANICS CO., LTD./University of Seoul Industry Cooperation...
- Joong Ho CHOI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
ILLUMINATION DRIVING APPARATUS
- Publication number 20120319605
- Publication date Dec 20, 2012
- SAMSUNG ELECTRO-MECHANICS CO., LTD./University of Seoul Industry Cooperation...
- Joong Ho CHOI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
RELAXATION OSCILLATOR
- Publication number 20120086515
- Publication date Apr 12, 2012
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Jeong Mo YANG
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
POWER FACTOR CORRECTION CIRCUIT
- Publication number 20120087160
- Publication date Apr 12, 2012
- UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
- Jeong Mo YANG
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
SEMICONDUCTOR DEVICES HAVING A TRENCH IN A SIDE PORTION OF A CONDUC...
- Publication number 20090215257
- Publication date Aug 27, 2009
- Samsung Electronics Co., Ltd.
- Chang-Hyeon Nam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BALLAST CONTROL SYSTEM FOR HID LAMP USING ZIGBEE
- Publication number 20080218317
- Publication date Sep 11, 2008
- Joong-Kwen Choi
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Semiconductor devices having a trench in a side portion of a conduc...
- Publication number 20060097390
- Publication date May 11, 2006
- Chang-Hyeon Nam
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Enhanced bluetooth communication system
- Publication number 20060025075
- Publication date Feb 2, 2006
- Woo-Suk Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Oxidation catalyst unit and a wet-type electrophotographic image fo...
- Publication number 20050244183
- Publication date Nov 3, 2005
- Kwoang-joe Seorl
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Liquid toner for electrophotography and method of preparing the same
- Publication number 20050153226
- Publication date Jul 14, 2005
- SAMSUNG ELECTRONICS CO., LTD.
- Nam-Jeong Lee
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Liquid ink composition and method of producing a liquid ink composi...
- Publication number 20050075417
- Publication date Apr 7, 2005
- Kyung-yol Yon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Liquid ink composition and preparation of the same
- Publication number 20040225030
- Publication date Nov 11, 2004
- Samsung Electronics Co., Ltd.
- Kyung-yol Yon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Joong Ho CHOI

Person

Patents Grantslast 30 patents

Wireless power transmitter

Start-up circuit and power device using the same

Phase shift circuit and power factor correction circuit including t...

Phase shift circuit and power factor correction circuit including t...

Power factor correction circuit

Power supply device and control circuit thereof

Illumination driving apparatus for light emitting diode and method...

Logic device and method of operating the same

IC circuit

Multi-valued logic device having nonvolatile memory device

Cooperative filtering algorithm-based personal preference program r...

Power factor correction circuit for correcting power factor

Illumination driving apparatus

Relaxation oscillator

Semiconductor devices having a trench in a side portion of a conduc...

Ballast control system for HID lamp using Zigbee

Enhanced bluetooth communication system

Semiconductor devices having a trench in a side portion of a conduc...

Liquid toner for electrophotography and method of preparing the same

Liquid ink composition and method of producing a liquid ink composi...

Oxidation catalyst unit and a wet-type electrophotographic image fo...

Liquid electrophotography printer having exhaust system with oxidat...

Database synchronization apparatus in element management system and...

Wet-type electrophotographic printer with photocatalystic filter

Gas exhausting apparatus for wet electrophotographic image forming...

Liquid developer for developing latent electrostatic image and meth...

Apparatus and method for measuring the bit error ratio of a transmi...

Organic anti-reflective coating material and preparation thereof

Scent diffusion apparatus and method

Delay time compensation circuit for clock buffer

Patents Applicationslast 30 patents

WIRELESS POWER TRANSMITTER

RECTIFIER AND METHOD OF CONTROLLING THE SAME

START-UP CIRCUIT AND POWER DEVICE USING THE SAME

GATE DRIVER INCLUDING LEVEL SHIFTER AND METHOD FOR DRIVING THE SAME

GATE DRIVING CIRCUIT, AND SWITCHING APPARATUS AND POWER SUPPLY APPA...

PFC CONTROL CIRCUIT, ACTIVE PFC CIRCUIT AND PFC CONTROL METHOD

POWER SUPPLY APPARATUS AND CONTROL CIRCUIT THEREOF

POWER SUPPLY DEVICE AND CONTROL CIRCUIT THEREOF

POWER FACTOR CORRECTION CIRCUIT

PHASE SHIFT CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT INCLUDING T...

PHASE SHIFT CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT INCLUDING T...

ILLUMINATION DRIVING APPARATUS FOR LIGHT EMITTING DIODE AND METHOD...

Cooperative Filtering Algorithm-Based Personal Preference Program R...

CONVERTER DRIVING CIRCUIT, DUAL-MODE LLC RESONANT CONVERTER SYSTEM,...

IC CIRCUIT

MULTI-VALUED LOGIC DEVICE HAVING NONVOLATILE MEMORY DEVICE

LOGIC DEVICE AND METHOD OF OPERATING THE SAME

LIGHT EMITTING DIODE DRIVING DEVICE AND METHOD THEREOF

LIGHT EMITTING DIODE DRIVER HAVING OFFSET VOLTAGE COMPENSATING FUNC...

ILLUMINATION DRIVING APPARATUS

RELAXATION OSCILLATOR

POWER FACTOR CORRECTION CIRCUIT

SEMICONDUCTOR DEVICES HAVING A TRENCH IN A SIDE PORTION OF A CONDUC...

BALLAST CONTROL SYSTEM FOR HID LAMP USING ZIGBEE

Semiconductor devices having a trench in a side portion of a conduc...

Enhanced bluetooth communication system

Oxidation catalyst unit and a wet-type electrophotographic image fo...

Liquid toner for electrophotography and method of preparing the same

Liquid ink composition and method of producing a liquid ink composi...

Liquid ink composition and preparation of the same