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Jubei City, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Light emitting device current regulator circuit and control method...
Patent number
10,187,941
Issue date
Jan 22, 2019
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Adaptive buck converter with monitor circuit and charging cable usi...
Patent number
10,170,923
Issue date
Jan 1, 2019
Richtek Technology Corporation
Ta-Yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Adaptive buck converter and charging cable using the same
Patent number
9,979,214
Issue date
May 22, 2018
Richtek Technology Corporation
Ta-Yung Yang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High efficiency charging system and charging circuit therein
Patent number
9,800,078
Issue date
Oct 24, 2017
Richtek Technology Corporation
Jing-Meng Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Light emitting device current regulator circuit and control method...
Patent number
9,686,829
Issue date
Jun 20, 2017
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Backlight control circuit with flexible configuration
Patent number
9,629,214
Issue date
Apr 18, 2017
Richtek Technology Corporation
Chiawei Liao
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Power supply circuit with PFC function, and automatic gain control...
Patent number
9,337,716
Issue date
May 10, 2016
Richtek Technology Corporation, R.O.C.
Chia-Wei Liao
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Analog photovoltaic power circuit with auto zero calibration
Patent number
9,306,443
Issue date
Apr 5, 2016
Richtek Technology Corporation, R.O.C.
Jing-Meng Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Isolated power converter circuit and control method thereof
Patent number
9,287,796
Issue date
Mar 15, 2016
Richtek Technology Corporation, R.O.C.
Chia-Wei Liao
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Backlight control circuit with under current detection and start-up...
Patent number
9,179,517
Issue date
Nov 3, 2015
Richtek Technology Corporation
Chiawei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Boundary conduction mode switching regulator and driver circuit and...
Patent number
9,106,132
Issue date
Aug 11, 2015
Richtek Technology Corporation
Jing-Meng Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching regulator and control circuit and control method thereof
Patent number
9,081,401
Issue date
Jul 14, 2015
Richtek Technology Corporation
Chia-Wei Liao
G05 - CONTROLLING REGULATING
Information
Patent Grant
Backlight control circuit with flexible configuration
Patent number
9,072,137
Issue date
Jun 30, 2015
Richtek Technology Corporation
Chiawei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Light emitting device driver circuit and control method thereof
Patent number
9,055,646
Issue date
Jun 9, 2015
Richtek Technology Corporation, R.O.C.
Chia-Wei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Light emitting device array driver circuit and current splitter cir...
Patent number
8,941,325
Issue date
Jan 27, 2015
Richtek Technologies Corporation, R.O.C.
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Active bleeder circuit triggering TRIAC in all phase and light emit...
Patent number
8,884,537
Issue date
Nov 11, 2014
Richtek Technology Corporation
Chia-Wei Liao
G05 - CONTROLLING REGULATING
Information
Patent Grant
Analog photovoltaic power circuit
Patent number
8,853,994
Issue date
Oct 7, 2014
Richtek Technology Corporation, R.O.C.
Jing-Meng Liu
G05 - CONTROLLING REGULATING
Information
Patent Grant
Cross-interference reduction of a buck power converter
Patent number
8,803,492
Issue date
Aug 12, 2014
Richtek Technology Corp.
Jing-Meng Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching regulator and control circuit and control method thereof
Patent number
8,780,587
Issue date
Jul 15, 2014
Richtek Technology Corporation, R.O.C.
Chia-Wei Liao
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Light emitting device power supply circuit, and light emitting devi...
Patent number
8,710,755
Issue date
Apr 29, 2014
Richtek Technology Corporation
Pei-Yuan Chen
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Protection to avoid abnormal operation caused by a shorted paramete...
Patent number
8,687,331
Issue date
Apr 1, 2014
Richtek Technology Corp.
Shao-Hung Lu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Circuit and method for providing absolute information for floating...
Patent number
8,659,239
Issue date
Feb 25, 2014
Richtek Technology Corporation
Chia-Wei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Flat panel display, light emitting module for use in flat panel dis...
Patent number
8,643,290
Issue date
Feb 4, 2014
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Boundary conduction mode switching regulator and driver circuit and...
Patent number
8,604,767
Issue date
Dec 10, 2013
Richtek Technology Corporation, R.O.C.
Jing-Meng Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control circuit for an organic light emitting diode panel
Patent number
8,531,491
Issue date
Sep 10, 2013
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
LED bulb, light emitting device control method, and light emitting...
Patent number
8,513,894
Issue date
Aug 20, 2013
Richtek Technology Corporation, R.O.C.
Pei-Cheng Huang
F21 - LIGHTING
Information
Patent Grant
Backlight control circuit capable of distinguishing under current c...
Patent number
8,508,464
Issue date
Aug 13, 2013
Richtek Technology Corporation
Chiawei Liao
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Backlight control circuit
Patent number
8,508,463
Issue date
Aug 13, 2013
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Thermal foldback control for a light-emitting diode
Patent number
8,450,948
Issue date
May 28, 2013
Richtek Technology Corp.
Pei-Cheng Huang
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Multi-color light emitting device circuit
Patent number
8,441,196
Issue date
May 14, 2013
Richtek Technology Corporation, R.O.C.
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
PROACTIVE SOUND DETECTION WITH NOISE CANCELLATION COMPONENT WITHIN...
Publication number
20200357375
Publication date
Nov 12, 2020
MEDIATEK INC.
Kuan-Ta Chen
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
CHARGING CONTROL METHOD, CHARGRING APPARATUS AND CHARGER CIRCUIT TH...
Publication number
20190190278
Publication date
Jun 20, 2019
RICHTEK TECHNOLOGY CORPORATION
Wei-Hsu Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ADAPTIVE BUCK CONVERTER WITH MONITOR CIRCUIT AND CHARGING CABLE USI...
Publication number
20180233937
Publication date
Aug 16, 2018
Richtek Technology Corporation
Ta-Yung YANG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
LIGHT EMITTING DEVICE CURRENT REGULATOR CIRCUIT AND CONTROL METHOD...
Publication number
20170257920
Publication date
Sep 7, 2017
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
MOBILE DEVICE CHARGER FOR CHARGING MOBILE DEVICE AND RELATED ADAPTI...
Publication number
20170201101
Publication date
Jul 13, 2017
Richtek Technology Corporation
Ta-Yung YANG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
ADAPTIVE BUCK CONVERTER AND CHARGING CABLE USING THE SAME
Publication number
20170201107
Publication date
Jul 13, 2017
Richtek Technology Corporation
Ta-Yung YANG
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER SUPPLY CIRCUIT WITH PFC FUNCTION, AND AUTOMATIC GAIN CONTROL...
Publication number
20160218617
Publication date
Jul 28, 2016
Richtek Technology Corporation
Chia-Wei Liao
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
HIGH EFFICIENCY CHARGING SYSTEM AND CHARGING CIRCUIT THEREIN
Publication number
20160134135
Publication date
May 12, 2016
Richtek Technology Corporation
Jing-Meng Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Backlight Control Circuit with Flexible Configuration
Publication number
20150257228
Publication date
Sep 10, 2015
Richtek Technology Corporation
Chiawei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ANALOG PHOTOVOLTAIC POWER CIRCUIT WITH AUTO ZERO CALIBRATION
Publication number
20140077757
Publication date
Mar 20, 2014
Richtek Technology Corporation
Jing-Meng Liu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
BOUNDARY CONDUCTION MODE SWITCHING REGULATOR AND DRIVER CIRCUIT AND...
Publication number
20140062444
Publication date
Mar 6, 2014
RICHTEK TECHNOLOGY CORPORATION, R.O.C.
Jing-Meng LIU
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Backlight Control Circuit with Under Current Detection and Start-up...
Publication number
20140009075
Publication date
Jan 9, 2014
Richtek Technology Corporation
Chiawei Liao
G02 - OPTICS
Information
Patent Application
POWER SUPPLY CIRCUIT WITH PFC FUNCTION, AND AUTOMATIC GAIN CONTROL...
Publication number
20130250631
Publication date
Sep 26, 2013
Richtek Technology Corporation
Chia-Wei Liao
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
LIGHT EMITTING DEVICE DRIVER CIRCUIT AND CONTROL METHOD THEREOF
Publication number
20130221875
Publication date
Aug 29, 2013
Richtek Technology Corporation
Chia-Wei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Isolated Power Converter Circuit and Control Method Thereof
Publication number
20130215651
Publication date
Aug 22, 2013
RICHTEK TECHNOLOGY CORPORATION, R.O.C.
Chia-Wei Liao
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Active Bleeder Circuit Triggering TRIAC in All Phase and Light Emit...
Publication number
20130169177
Publication date
Jul 4, 2013
Richtek Technology Corporation
Chia-Wei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Switching Regulator and Control Circuit and Control Method Thereof
Publication number
20130169252
Publication date
Jul 4, 2013
Richtek Technology Corporation
Chia-Wei Liao
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Switching Regulator and Control Circuit and Control Method Thereof
Publication number
20130114308
Publication date
May 9, 2013
Richtek Technology Corporation
Chia-Wei Liao
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Multi-Color Light Emitting Device Circuit
Publication number
20130002153
Publication date
Jan 3, 2013
Richtek Technology Corporation, R.O.C.
Jing-Meng LIU
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
LIGHT EMITTING DEVICE ARRAY DRIVER CIRCUIT AND CURRENT SPLITTER CIR...
Publication number
20120326613
Publication date
Dec 27, 2012
Richtek Technology Corporation, R.O.C.
Jing-Meng LIU
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
LIGHT EMITTING DEVICE CURRENT REGULATOR CIRCUIT AND CONTROL METHOD...
Publication number
20120286679
Publication date
Nov 15, 2012
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Light Emitting Device Power Supply Circuit, and Light Emitting Devi...
Publication number
20120242238
Publication date
Sep 27, 2012
Richtek Technology Corporation
Pei-Yuan Chen
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
CIRCUIT AND METHOD FOR PROVIDING ABSOLUTE INFORMATION FOR FLOATING...
Publication number
20120187997
Publication date
Jul 26, 2012
Richtek Technology Corporation, R.O.C.
Chia-Wei Liao
G01 - MEASURING TESTING
Information
Patent Application
Analog photovoltaic power circuit
Publication number
20120080950
Publication date
Apr 5, 2012
Richtek Technology Corporation, R.O.C.
Jing-Meng Liu
G05 - CONTROLLING REGULATING
Information
Patent Application
BACKLIGHT CONTROL CIRCUIT
Publication number
20110316424
Publication date
Dec 29, 2011
Richtek Technology Corporation, R.O.C.
CHIAWEI LIAO
G02 - OPTICS
Information
Patent Application
FLAT PANEL DISPLAY, LIGHT EMITTING MODULE FOR USE IN FLAT PANEL DIS...
Publication number
20110273101
Publication date
Nov 10, 2011
Richtek Technology Corporation, R.O.C.
Jing-Meng LIU
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
PROTECTION TO AVOID ABNORMAL OPERATION CAUSED BY A SHORTED PARAMETE...
Publication number
20110261492
Publication date
Oct 27, 2011
RICHTEK TECHNOLOGY CORP.
SHAO-HUNG LU
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Wireless Remote Control Lighting Unit and Wireless Remote Control L...
Publication number
20110248643
Publication date
Oct 13, 2011
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
THERMAL FOLDBACK CONTROL FOR A LIGHT-EMITTING DIODE
Publication number
20110163696
Publication date
Jul 7, 2011
RICHTEK TECHNOLOGY CORP.
PEI-CHENG HUANG
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Multi-Color Backlight Control Circuit and Multi-Color Backlight Con...
Publication number
20110109234
Publication date
May 12, 2011
Richtek Technology Corporation
Jing-Meng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR