TDK CORPORATION

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Technologies

Intl Class Technology # of Patents/ App Rank in Class
 
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 1765 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 355 96
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 324 3
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 290 1
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 187 28
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 141 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 114 42
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 95 10
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 86 66
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 76 61
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0227,608 SULFIDE SOLID ELECTROLYTE MATERIAL AND ELECTROCHEMICAL DEVICE Feb 10, 14 Aug 14, 14 [H01M]
2014/0220,364 DIELECTRIC CERAMIC COMPOSITION, ELECTRONIC ELEMENT, AND COMPOSITE ELECTRIC ELEMENT Jan 28, 14 Aug 07, 14 [H01B, C04B]
2014/0209,664 METHOD OF MANUFACTURING AN ELECTRONIC DEVICE Jan 25, 13 Jul 31, 14 [G11B]
2014/0210,402 CHARGING DEVICE Jan 29, 14 Jul 31, 14 [H02J]
2014/0210,556 HIGH-FREQUENCY AMPLIFIER Jan 08, 14 Jul 31, 14 [H03F]
2014/0211,513 POWER SUPPLY DEVICE AND POWER SUPPLY SYSTEM Jan 29, 14 Jul 31, 14 [H02M]
2014/0211,515 DC-DC CONVERTER AND POWER SUPPLY DEVICE HAVING DC-DC CONVERTER Jan 23, 14 Jul 31, 14 [H02M]
2014/0203,901 REACTOR AND ELECTRICAL DEVICE Aug 27, 12 Jul 24, 14 [H01F]
2014/0204,499 ELECTROSTATIC PROTECTION COMPONENT Mar 24, 14 Jul 24, 14 [H05F]
2014/0204,723 Thermally-assisted magnetic recording head and method of manufacturing the same Jan 22, 13 Jul 24, 14 [G11B]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,810,338 Signal transmission device, filter, and inter-substrate communication device Aug 30, 11 Aug 19, 14 [H01P]
8,811,127 Magnetic head comprising recording part, reading part, heater for expansion of the recording part, and heater for expansion of the reading part Feb 22, 13 Aug 19, 14 [G11B]
8,811,140 Recordable optical disc, recording device, and recording method Jul 01, 10 Aug 19, 14 [G11B]
8,800,738 Wireless power feeder and wireless power receiver Jun 28, 11 Aug 12, 14 [B60L, H04B, H02J]
8,804,439 Power circuit, flash memory system provided with the power circuit, and power supply method May 10, 12 Aug 12, 14 [G11C]
8,790,523 Method for manufacturing magnetic head Jan 07, 09 Jul 29, 14 [B44C, H01L]
8,791,786 Coil device Oct 04, 12 Jul 29, 14 [H01F]
8,782,879 Workpiece transfer apparatus Aug 29, 12 Jul 22, 14 [H01L]
8,785,045 Active material, electrode, battery, and method of manufacturing active material Apr 23, 08 Jul 22, 14 [H01M]
8,785,047 Lithium-ion secondary battery and method of charging lithium-ion secondary battery Feb 25, 05 Jul 22, 14 [H01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
8,692,414 Wireless power feeder and wireless power transmission system Apr 07, 11 Apr 08, 14 [H01F]
2013/0070,364 THIN FILM MAGNETIC HEAD AND MANUFACTURING METHOD THEREOF Sep 15, 11 Mar 21, 13 [G11B]
2012/0313,743 LAMINATED ELECTRONIC COMPONENT EQUIPPED WITH INDUCTOR Sep 07, 11 Dec 13, 12 [H01F]
2012/0250,123 APPARATUS AND METHOD FOR EVALUATING HOLOGRAM IMAGE RECORDING MEDIUM Jan 30, 12 Oct 04, 12 [G03H]
2012/0250,189 MAGNETIC HEAD INCLUDING SIDE SHIELD LAYERS ON BOTH SIDES OF A MR ELEMENT Mar 29, 11 Oct 04, 12 [G11B]
2012/0250,216 SEMICONDUCTOR CERAMIC AND A MULTILAYER SEMICONDUCTOR CERAMIC CAPACITOR Mar 27, 12 Oct 04, 12 [H01B, H01G]
2012/0228,683 SPIN DEVICE, AND MAGNETIC SENSOR AND SPIN FET USING THE SAME Mar 09, 12 Sep 13, 12 [H01L]
2012/0075,768 DIELECTRIC CERAMIC COMPOSITION AND MANUFACTURING METHOD THEREOF, AND CERAMIC ELECTRONIC DEVICE Sep 29, 11 Mar 29, 12 [C04B, H01G]
2012/0067,999 TAPE REEL AND INFORMATION RECORDING MEDIUM Sep 19, 11 Mar 22, 12 [G11B, B65H]
2012/0069,615 BRIDGELESS POWER FACTOR CORRECTION CONVERTER Sep 07, 11 Mar 22, 12 [H02M]
2011/0317,328 CERAMIC ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING THE SAME Jun 23, 11 Dec 29, 11 [H01C, H01G]
2011/0280,116 OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING METHOD May 11, 11 Nov 17, 11 [G11B]
2011/0262,632 Magnetoresistive Effect Element, Thin-Film Magnetic Head, Method for Manufacturing Magnetoresistive Effect Element, and Method for Manufacturing Thin-Film Magnetic Head Mar 07, 11 Oct 27, 11 [B05D]
2011/0235,491 OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING METHOD Mar 24, 11 Sep 29, 11 [G11B, B32B]
2011/0216,432 MAGNETIC HEAD COMPRISING TWO MAGNETIC FIELD SENSING PART Mar 05, 10 Sep 08, 11 [G11B]
2011/0204,744 ROTOR CORE AND ELECTRIC MOTOR Feb 16, 11 Aug 25, 11 [H02K]
2011/0205,882 SERIES OF OPTICAL RECORDING MEDIA Feb 22, 11 Aug 25, 11 [G11B]
2011/0198,115 ELECTRONIC COMPONENT BUILT-IN MODULE AND METHOD OF MANUFACTURING THE SAME Feb 11, 11 Aug 18, 11 [H05K]
2011/0195,178 PRODUCTION METHOD OF DIELECTRIC CERAMIC COMPOSITION AND PRODUCTION METHOD OF ELECTRONIC DEVICE Jan 31, 11 Aug 11, 11 [C04B, B05D]
2011/0195,835 DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE Jan 31, 11 Aug 11, 11 [C04B]

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