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 1757 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 357 96
 
 
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 297 2
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 186 28
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 145 4
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 113 40
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 95 10
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 88 64
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 75 62
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0299,016 BLACK MARKER COMPOSITION AND AN ELECTRONIC COMPONENT USING THESE Mar 20, 14 Oct 09, 14 [C09D]
2014/0302,320 DIELECTRIC CERAMIC COMPOSITION, DIELECTRIC CERAMIC, ELECTRONIC DEVICE, AND COMMUNICATION DEVICE Apr 01, 14 Oct 09, 14 [C04B]
2014/0283,649 R-T-B BASED SINTERED MAGNET Oct 04, 12 Sep 25, 14 [H01F]
2014/0285,919 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD Mar 25, 13 Sep 25, 14 [G11B]
2014/0286,147 PLASMON GENERATOR HAVING FLARE SHAPED SECTION Mar 25, 13 Sep 25, 14 [G11B, G21K]
2014/0286,815 R-T-B BASED ALLOY STRIP, AND R-T-B BASED SINTERED MAGNET AND METHOD FOR PRODUCING SAME Oct 11, 12 Sep 25, 14 [H01F]
2014/0286,816 R-T-B BASED SINTERED MAGNET AND PRODUCTION METHOD FOR SAME, AND ROTARY MACHINE Oct 11, 12 Sep 25, 14 [H01F]
2014/0265,723 PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE Mar 14, 13 Sep 18, 14 [B41J, H01L, G01L]
2014/0265,724 PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE Mar 14, 13 Sep 18, 14 [B41J, H01L, G01L]
2014/0266,547 ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF Mar 06, 14 Sep 18, 14 [H01F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,861,135 Thermally-assisted magnetic write head, head gimbal assembly, head arm assembly, and magnetic disk unit Oct 04, 12 Oct 14, 14 [G11B]
8,861,136 Spin conduction element and magnetic sensor and magnetic head using spin conduction Mar 13, 13 Oct 14, 14 [G01R, G11B, H01L]
8,861,318 Thermally assisted magnetic write head, and method of manufacturing the same Dec 05, 13 Oct 14, 14 [G11B]
8,853,115 Dielectric ceramic composition and electronic device Feb 21, 13 Oct 07, 14 [C04B, H01G, C01G]
8,853,920 Piezoelectric ceramic composition consisting of a perovskite-type oxide and piezoelectric element May 21, 10 Oct 07, 14 [H03H, C04B, H01L]
8,854,931 Polarization converter including a jagged diagonal line in plane orthogonal to propagation direction of electromagnetic wave Mar 08, 13 Oct 07, 14 [G11B, H01P]
8,845,867 Method for manufacturing magnetoresistance effect element using simultaneous sputtering of Zn and ZnO Dec 09, 08 Sep 30, 14 [G01R, G11B, C23C, B82Y]
8,846,210 Ceramic electronic component and method of manufacturing ceramic electronic component Feb 04, 11 Sep 30, 14 [C04B, H01G, B32B]
8,841,224 Dielectric ceramic composition and electronic device Feb 21, 13 Sep 23, 14 [C04B, H01G]
8,841,226 Dielectric ceramic composition Nov 15, 12 Sep 23, 14 [C04B]

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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]
2013/0256,848 ELECTRONIC COMPONENT MODULE AND METHOD OF MANUFACTURING THE SAME Mar 28, 13 Oct 03, 13 [H01L]
2013/0099,834 RAMP SIGNAL GENERATION CIRCUIT AND RAMP SIGNAL ADJUSTMENT CIRCUIT Oct 18, 12 Apr 25, 13 [H03K]
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]
2012/0218,712 SPRING FIXTURE FOR ELECTRONIC COMPONENT AND HEAT SINK STRUCTURE Feb 27, 12 Aug 30, 12 [F16D, H05K]
2012/0162,854 MULTILAYER CERAMIC CAPACITOR Dec 27, 11 Jun 28, 12 [H01G]
2012/0086,993 PHOTOPOLYMER MEDIUM FOR COLOR HOLOGRAM IMAGE RECORDING AND COLOR HOLOGRAM IMAGE RECORDING METHOD Sep 06, 11 Apr 12, 12 [G03H]
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]

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