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 1792 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 359 94
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 326 3
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 287 1
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 198 28
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 144 4
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 107 41
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 92 10
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 83 62
 
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 76 30
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0191,824 MULTILAYER COMMON MODE FILTER Dec 18, 13 Jul 10, 14 [H03H]
2014/0184,370 SINTERED RARE EARTH MAGNET, METHOD OF PRODUCING THE SAME, AND ROTATING MACHINE May 25, 12 Jul 03, 14 [H01F]
2014/0177,104 PERPENDICULAR MAGNETIC WRITE HEAD AND MAGNETIC RECORDING DEVICE Dec 26, 12 Jun 26, 14 [G11B]
2014/0177,307 POWER FACTOR IMPROVEMENT CIRCUIT Dec 18, 13 Jun 26, 14 [H02M]
2014/0167,523 POWER TRANSMISSION DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM USING THE POWER TRANSMISSION DEVICE Dec 13, 13 Jun 19, 14 [H01F]
2014/0167,909 CHIP VARISTOR Dec 11, 13 Jun 19, 14 [H01C]
2014/0171,289 VOLTAGE NONLINEAR RESISTOR CERAMIC COMPOSITION AND ELECTRONIC COMPONENT Dec 10, 13 Jun 19, 14 [H01B]
2014/0157,722 LID OPENING/CLOSING SYSTEM FOR CLOSED CONTAINER, AND SUBSTRATE PROCESSING METHOD USING THE SAME Dec 03, 13 Jun 12, 14 [B65B]
2014/0160,597 MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING HAVING A WRITE SHIELD Dec 07, 12 Jun 12, 14 [G11B]
2014/0153,196 MOUNTING STRUCTURE OF CHIP COMPONENT AND ELECTRONIC MODULE USING THE SAME Nov 26, 13 Jun 05, 14 [H05K]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
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]
8,786,214 Light emitting element drive device and lighting device Dec 06, 12 Jul 22, 14 [H05B]
8,786,278 Three-dimensional magnetic field sensor and method of producing same Jun 11, 12 Jul 22, 14 [G01R]
8,786,280 Magneto-resistance effect element and sensor Jul 29, 10 Jul 22, 14 [G01R]
8,786,379 Common mode noise filter May 16, 11 Jul 22, 14 [H03H, H02H, H04B]
8,787,028 Terminal structure, printed circuit board, module board, electronic device, and method for manufacturing terminal structure Nov 15, 12 Jul 22, 14 [H01R, H05K]
8,779,299 Electronic component-embeded board and method for manufacturing the same Mar 23, 12 Jul 15, 14 [H01L, H05K]
8,779,692 Light emitting element drive device Apr 12, 12 Jul 15, 14 [H05B]
8,779,883 Coil device Jul 06, 12 Jul 15, 14 [H01F]
8,780,500 Microwave-assisted magnetic recording head, method of manufacturing the same, magnetic head assembly using the same, and magnetic recording/reproduction apparatus Jan 29, 13 Jul 15, 14 [G11B]
8,780,501 Head support mechanism with counter balance and centroid adjustment pads Apr 26, 12 Jul 15, 14 [G11B]
8,771,898 Arrangement of components in a solid oxide fuel cell and manufacturing method thereof Apr 01, 10 Jul 08, 14 [H01M]
8,772,977 Wireless power feeder, wireless power transmission system, and table and table lamp using the same Apr 28, 11 Jul 08, 14 [H01F]
8,773,234 Transformer Nov 30, 12 Jul 08, 14 [H01F]
8,773,958 Estimation method of Curie temperature distribution width Aug 07, 12 Jul 08, 14 [G11B]
8,765,860 Injection molding composition and producing method thereof Aug 27, 12 Jul 01, 14 [H01F, C08K, C08L]
8,767,348 Thermally-assisted magnetic recording head including first and second cladding sections having different characteristics Mar 07, 13 Jul 01, 14 [G11B]
8,767,356 Magnetoresistive sensor with funnel-shaped free layer, magnetic head, head gimbal assembly, and disk drive unit with the same Jun 11, 10 Jul 01, 14 [G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
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]
2011/0187,485 TRANSFORMER HAVING SECTIONED BOBBIN Jan 28, 11 Aug 04, 11 [H01F]

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