RICHTEK TECHNOLOGY CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 14519
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 11525
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 76286
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 6353
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 4575
 
  
 
H03K PULSE TECHNIQUE 3299
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1859
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 13434
 
  
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 12139
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 8151

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0004,233 FLUID DISPENSER, FLUID DISPENSATION CONTROL DEVICE, AND FLUID DISPENSATION ABNORMAL STATUS MONITORAug 26, 16Jan 04, 18[F16K, B05B, G05D, B67D]
2017/0343,610 METHOD OF ESTIMATING THE STATE OF CHARGE OF A BATTERY AND SYSTEM THEREOFAug 15, 17Nov 30, 17[H02J, G01R]
2017/0328,800 COMBO MICRO-ELECTRO-MECHANICAL SYSTEM DEVICE AND MANUFACTURING METHOD THEREOFJul 13, 17Nov 16, 17[G01L, B81B]
2017/0201,101 MOBILE DEVICE CHARGER FOR CHARGING MOBILE DEVICE AND RELATED ADAPTIVE CHARGING VOLTAGE GENERATORFeb 02, 16Jul 13, 17[H02J]
2017/0196,055 LIGHT EMITTING DEVICE DRIVER CIRCUIT AND DRIVING METHOD OF LIGHT EMITTING DEVICE CIRCUITJul 22, 16Jul 06, 17[H05B]
2017/0085,131 RESONANT WIRELESS POWER TRANSMITTER CIRCUIT AND CONTROL CIRCUIT AND CONTROL METHOD THEREOFApr 10, 16Mar 23, 17[H02J, H03H]
2016/0352,232 POWER CONVERTER AND CONTROL CIRCUIT AND STANDBY POWER SAVING METHOD THEREOFMay 12, 16Dec 01, 16[H02M]
2016/0336,808 RESONANT WIRELESS POWER RECEIVER CIRCUIT AND CONTROL CIRCUIT AND WIRELESS POWER CONVERSION METHOD THEREOFMay 02, 16Nov 17, 16[H02J, H02M]
2016/0336,811 RESONANT WIRELESS POWER RECEIVER CIRCUIT AND CONTROL CIRCUIT AND WIRELESS POWER CONVERSION METHOD THEREOFMay 13, 16Nov 17, 16[H02J, H02M]
2016/0329,730 MOBILE DEVICE CHARGING SYSTEM AND RELATED ADAPTIVE POWER CONVERTER AND CHARGING CONTROL CIRCUITMay 05, 16Nov 10, 16[H02J]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9912224 Power supply system and short circuit and/or bad connection detection method thereof, and power converter thereofJun 10, 15Mar 06, 18[H02M, H02H]
9907128 Driving circuit for driving a LED arrayMar 09, 17Feb 27, 18[H05B]
9899883 Wireless power transfer system having positioning function and positioning device and method thereforJan 09, 15Feb 20, 18[H02J, H01F]
9871453 Control circuit and method of a power converterSep 16, 16Jan 16, 18[H02M, H02H]
9858225 USB type-C cable and method for reading/writing a chip in a USB type-C cableDec 22, 15Jan 02, 18[G06F, G06K]
9859783 Voltage converter controller and voltage converter circuitNov 08, 13Jan 02, 18[H02M, G05F]
9853099 Double diffused metal oxide semiconductor device and manufacturing method thereofApr 18, 17Dec 26, 17[H01L]
9853100 High voltage device and manufacturing method thereofApr 18, 17Dec 26, 17[H01L]
9853486 Resonant wireless power receiver circuit and control method thereofFeb 10, 16Dec 26, 17[H02J]
9853505 Resonant wireless power receiver circuit and control circuit and wireless power conversion method thereofMay 02, 16Dec 26, 17[H02J, H02M, H01F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0237,353 METHOD FOR CONROLLING ON TIME OF POWER SWITCH IN POWER CONVERTERAbandonedMay 04, 17Aug 17, 17[H02M]
2017/0179,834 POWER CONVERTER AND SWITCH CONTROL MODULE THEREINAbandonedJun 01, 16Jun 22, 17[H02M]
2017/0030,741 MICRO-ELECTRO-MECHANICAL SYSTEM DEVICE WITH ELECTRICAL COMPENSATION AND READOUT CIRCUIT THEREOFAbandonedMar 01, 16Feb 02, 17[G01D]
2016/0365,994 FREQUENCY-MODULATED CARRIER RECEIVER USING INJECTION-LOCKED OSCILLATORAbandonedJun 10, 15Dec 15, 16[H04L]
2016/0353,534 LED LUMINANCE DEVICE AND RELATED DRIVER CIRCUITAbandonedMay 16, 16Dec 01, 16[H05B]
2016/0096,728 MEMS Chip and Manufacturing Method ThereofAbandonedDec 11, 15Apr 07, 16[B81C]
2016/0079,443 JUNCTION BARRIER SCHOTTKY DIODEAbandonedOct 29, 14Mar 17, 16[H01L]
2016/0025,779 METHOD AND CIRCUIT FOR CONFIRMING CORRECTNESS OF SIGNAL AND CHARGING SYSTEM USING SAMEAbandonedJul 07, 15Jan 28, 16[H02J, G01R]
2016/0018,468 METHOD OF ESTIMATING THE STATE OF CHARGE OF A BATTERY AND SYSTEM THEREOFAbandonedFeb 10, 15Jan 21, 16[G01R]
2016/0018,469 METHOD OF ESTIMATING THE STATE OF CHARGE OF A BATTERY AND SYSTEM THEREOFAbandonedJul 14, 15Jan 21, 16[G01R]
2016/0005,674 INTEGRATED CIRCUIT ASSEMBLY AND INTEGRATED CIRCUIT PACKAGING STRUCTUREAbandonedOct 22, 14Jan 07, 16[H01L]
2015/0366,032 RETAINING CIRCUIT AND LIGHT EMITTING DEVICE DRIVER CIRCUIT WITH RETAINING CIRCUITAbandonedSep 10, 14Dec 17, 15[H05B]
2015/0349,690 Driving Signal Generator and Method of Generating Driving SignalAbandonedJul 19, 14Dec 03, 15[H02P]
2015/0340,944 LIGHT EMITTING DEVICE DRIVER CIRCUIT, CURRENT RIPPLE REJECTER THEREIN, AND CURRENT RIPPLE REJECTION METHOD THEREFORAbandonedMay 07, 15Nov 26, 15[H02M, H05B]
2015/0270,780 CONSTANT CURRENT REGULATORAbandonedJun 03, 15Sep 24, 15[H02M]
2015/0260,593 MIRCO-ELECTRO-MECHANICAL SYSTEM PRESSURE SENSOR AND MANUFACTURING METHOD THEREOFAbandonedJul 11, 14Sep 17, 15[G01L, B81C, B81B]
2015/0210,541 MEMS Chip and Manufacturing Method ThereofAbandonedOct 02, 14Jul 30, 15[B81C, B81B]
2015/0214,736 CONTROL METHOD FOR SUPPLYING POWERAbandonedJan 28, 14Jul 30, 15[H02J, H02M, H05B]
2015/0189,427 DEVICE AND METHOD FOR GENERATING DRIVING SIGNAL OF LOUDSPEAKERAbandonedJun 13, 14Jul 02, 15[H04R]
2015/0154,904 LIGHT EMITTING DEVICE CONTROL CIRCUIT AND CONTROL METHOD THEREOFAbandonedNov 27, 14Jun 04, 15[H05B, G09G]

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