TDK-LAMBDA CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 2082
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 9147
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 694
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 5115
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 497
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 282
 
  
 
H03K PULSE TECHNIQUE 2129
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 2109
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9520772 Multi-level voltage regulator systemAug 16, 13Dec 13, 16[H02M, G05F]
9408327 Thermal management system and methodJul 15, 15Aug 02, 16[H01L, H05K]
9143047 Loosely regulated feedback control for high efficiency isolated DC-DC convertersNov 09, 11Sep 22, 15[H02M]
9119327 Thermal management system and methodOct 24, 12Aug 25, 15[H01L, H05K]
8934267 Loosely regulated feedback control for high efficiency isolated DC-DC convertersMar 24, 11Jan 13, 15[H02M]
8929098 DC-DC converterJun 13, 11Jan 06, 15[H02J, H02M]
8766546 LED drive device and LED illuminating deviceJun 06, 11Jul 01, 14[H05B]
8749990 Multiple-board power converterNov 29, 06Jun 10, 14[H02B, H05K]
8604770 Load drive device for expanding range of output powerJun 23, 11Dec 10, 13[G05F]
8604797 Method for determining cell number, cell number determination device, power supply device and programMar 25, 10Dec 10, 13[H02J, G01N]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8842446 DC-DC converterWithdrawnJun 13, 11Sep 23, 14[H02J, H02M]
2011/0309,767 LIGHT-EMITTING ELEMENT DRIVE DEVICEAbandonedJun 16, 11Dec 22, 11[H05B]
2011/0304,275 DISCHARGE LAMP LIGHTING DEVICEAbandonedJun 15, 11Dec 15, 11[H05B]
2011/0305,852 Electronic circuit substrateAbandonedMay 18, 11Dec 15, 11[H05K]
2011/0291,579 DISCHARGE LAMP STARTING CIRCUIT AND DISCHARGE LAMP LIGHTING DEVICEAbandonedJun 01, 11Dec 01, 11[H05B]
2011/0266,043 SUBSTRATEAbandonedJan 07, 11Nov 03, 11[H05K]
2011/0255,315 SWITCHING POWER SUPPLY DEVICEAbandonedApr 15, 11Oct 20, 11[H02M]
7620462 Robust digital controller and its designing deviceExpiredJul 28, 05Nov 17, 09[G05B]
2009/0091,191 ELECTRIC POWER SUPPLY SYSTEMAbandonedOct 09, 07Apr 09, 09[H02J]
2009/0053,585 Battery PackAbandonedOct 03, 06Feb 26, 09[H01M]
2008/0299,445 SECONDARY BATTERY PACKAbandonedMay 31, 07Dec 04, 08[H01M]
2008/0299,452 BATTERY PACKAbandonedMay 31, 07Dec 04, 08[H01M]
7355829 Overvoltage protection circuit, and power source, power supply system and electronic apparatus using the overvoltage protection circuitExpiredSep 08, 04Apr 08, 08[H02H]
5986908 Magnetic-coupling multivibratorExpiredApr 28, 98Nov 16, 99[H02M]
5903134 Inductive battery chargerExpiredMay 19, 98May 11, 99[H02J]
D369778 Noise filterExpiredApr 07, 93May 14, 96[]
D362839 DC stabilizing power supplyExpiredApr 07, 93Oct 03, 95[]
D361310 Noise filterExpiredApr 07, 93Aug 15, 95[]
D356994 DC stabilizing power supplyExpiredApr 07, 93Apr 04, 95[]
D356291 DC stabilizing power supplyExpiredApr 07, 93Mar 14, 95[]

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