TDK CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology MATTERS Rank in Class
 
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 1513 5
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 451 2
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 422 108
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 390 3
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 180 5
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 174 30
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 142 46
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 110 67
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 99 12
 
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 99 34
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0301,455 DIFFERENTIAL MODE FILTER Apr 10, 17 Oct 19, 17 [H03H, H01F]
2017/0301,628 ELECTRONIC CIRCUIT PACKAGE Mar 21, 17 Oct 19, 17 [H01L]
2017/0294,387 ELECTRONIC CIRCUIT PACKAGE Dec 16, 16 Oct 12, 17 [H01L]
2017/0295,643 ELECTRONIC CIRCUIT MODULE AND MANUFACTURING METHOD OF THE SAME Apr 04, 17 Oct 12, 17 [H05K]
2017/0283,328 DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR Mar 22, 17 Oct 05, 17 [C04B, H01G]
2017/0284,827 POSITION DETECTING DEVICE AND STRUCTURE FOR USING POSITION DETECTING DEVICE Apr 13, 16 Oct 05, 17 [G01D]
2017/0287,513 THERMAL ASSISTED MAGNETIC RECORDING HEAD WITH PLASMON GENERATOR Mar 30, 16 Oct 05, 17 [G11B]
2017/0287,604 COMPOSITE MAGNETIC SEALING MATERIAL Nov 15, 16 Oct 05, 17 [H01F, H01L]
2017/0287,622 THIN FILM INDUCTOR Mar 23, 17 Oct 05, 17 [H01F]
2017/0287,635 DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR Mar 22, 17 Oct 05, 17 [C04B, H01G]
2017/0287,636 DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR Mar 22, 17 Oct 05, 17 [C04B, H01G]
2017/0287,645 ELECTRONIC COMPONENT Mar 28, 17 Oct 05, 17 [H01G]
2017/0287,848 ELECTRONIC CIRCUIT PACKAGE USING COMPOSITE MAGNETIC SEALING MATERIAL Nov 16, 16 Oct 05, 17 [B29C, H01L]
2017/0288,127 PIEZOELECTRIC CERAMIC SPUTTERING TARGET, LEAD-FREE PIEZOELECTRIC THIN FILM AND PIEZOELECTRIC THIN FILM ELEMENT USING THE SAME Mar 27, 17 Oct 05, 17 [H01L]
2017/0288,128 PIEZOELECTRIC CERAMIC SPUTTERING TARGET, LEAD-FREE PIEZOELECTRIC THIN FILM AND PIEZOELECTRIC THIN FILM ELEMENT USING THE SAME Mar 22, 17 Oct 05, 17 [C23C, H01J, H01L]
2017/0288,132 MAGNETORESISTIVE ELEMENT AND MAGNETIC SENSOR Mar 16, 17 Oct 05, 17 [G01R, H01L]
2017/0288,133 MAGNETORESISTIVE ELEMENT AND MAGNETIC SENSOR Mar 16, 17 Oct 05, 17 [G01R, H01L]
2017/0288,214 POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING THE SAME Feb 21, 17 Oct 05, 17 [H01M]
2017/0288,464 Power Transmission Device Mar 28, 17 Oct 05, 17 [H01F, H02J]
2017/0288,465 POWER FEEDING COIL UNIT, WIRELESS POWER FEEDING DEVICE AND WIRELESS POWER TRANSMISSION DEVICE Mar 29, 17 Oct 05, 17 [B60L, H01F, H02J]
2017/0288,469 COIL UNIT, WIRELESS POWER FEEDING DEVICE, WIRELESS POWER RECEIVING DEVICE AND WIRELESS POWER TRANSMISSION DEVICE Mar 29, 17 Oct 05, 17 [H01F, B60L, H02J]
2017/0288,626 COMMON MODE FILTER Mar 16, 17 Oct 05, 17 [H03H, H01F]
2017/0290,152 ELECTRONIC COMPONENT MOUNTING BOARD Mar 23, 17 Oct 05, 17 [H05K]
2017/0290,165 THIN FILM COMPONENT SHEET, BOARD WITH BUILT-IN ELECTRONIC COMPONENT, AND METHOD OF MANUFACTURING THE THIN FILM COMPONENT SHEET Mar 23, 17 Oct 05, 17 [H01L, H05K]
2017/0275,174 DIELECTRIC FILM AND ELECTRONIC COMPONENT Mar 15, 17 Sep 28, 17 [C04B, C23C, H01G, C01F]
2017/0276,657 GAS DETECTION SHEET AND ELECTROCHEMICAL ELEMENT WITH GAS DETECTION SHEET Mar 23, 17 Sep 28, 17 [H01G, H01M, G01N]
2017/0276,712 RADIATED EMISSION MEASURING DEVICE Mar 01, 17 Sep 28, 17 [G01R]
2017/0278,530 PLASMON GENERATOR WITH SEPARATING LAYER FOR THERMAL ASSISTED MAGNETIC RECORDING HEAD Mar 25, 16 Sep 28, 17 [G11B]
2017/0278,602 R-T-B BASED PERMANENT MAGNET Feb 23, 17 Sep 28, 17 [H01F, B22F, C21D, C22C]
2017/0278,609 RARE EARTH MAGNET AND MOTOR Feb 23, 17 Sep 28, 17 [H01F, H02K]
2017/0278,632 DIELECTRIC THIN FILM AND ELECTRONIC COMPONENT Mar 15, 17 Sep 28, 17 [H03H, C23C, H01G, H01P]
2017/0278,804 ELECTRONIC CIRCUIT PACKAGE Nov 15, 16 Sep 28, 17 [H01L]
2017/0279,039 MAGNETORESISTIVE EFFECT ELEMENT Mar 23, 17 Sep 28, 17 [H01L]
2017/0279,168 GAS DETECTOR AND ELECTROCHEMICAL ELEMENT WITH GAS DETECTOR Mar 23, 17 Sep 28, 17 [H01G, G01N, H01M]
2017/0279,190 ANTENNA DEVICE AND PORTABLE WIRELESS DEVICE USING THE SAME Mar 16, 17 Sep 28, 17 [H01Q]
2017/0279,310 WIRELESS POWER TRANSMISSION SYSTEM Mar 17, 17 Sep 28, 17 [H02J]
2017/0279,311 Power Feeding Device and Wireless Power Transmission Device Mar 20, 17 Sep 28, 17 [H02J]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9792932 Thin film magnetic head, head gimbals assembly, head arm assembly, and magnetic disk unit Mar 07, 16 Oct 17, 17 [G11B]
9792934 Multi reader head having a varying gap layer laminated between readers Mar 03, 16 Oct 17, 17 [G11B]
9793035 Soft magnetic metal powder and soft magnetic metal powder core using the same May 14, 15 Oct 17, 17 [H01F, C22C]
9793044 Coil device and method for manufacturing the same Mar 21, 16 Oct 17, 17 [H01F]
9793608 Ferrite composition, ferrite plate, member for antenna element, and antenna element Nov 26, 14 Oct 17, 17 [H01Q, C04B, H01F, C02F, G06K]
9793718 Coil unit having plural coils for wireless power transmission Nov 20, 14 Oct 17, 17 [H01F, H04B, H02J]
9795020 ESD protection component Dec 12, 14 Oct 17, 17 [H01T, H05F, H05K]
9786531 Gas purge unit, load port apparatus, and installation stand for purging container Nov 26, 14 Oct 10, 17 [B08B, H01L]
9786973 Tunable filter using variable impedance transmission lines Mar 18, 14 Oct 10, 17 [H01P]
9787197 Switching power supply unit Oct 17, 16 Oct 10, 17 [H02M]
9788410 Printed circuit board and power supply device Aug 12, 14 Oct 10, 17 [H01F, H05K]
9779861 Soft magnetic metal powder and soft magnetic metal powder core using the same May 14, 15 Oct 03, 17 [H01F, B22F, C22C]
9780277 Thermoelectric device Mar 04, 15 Oct 03, 17 [H01L]
9780294 Piezoelectric composition and piezoelectric element Nov 07, 14 Oct 03, 17 [C04B, H01L]
9780408 Garnet-type Li-ion conductive oxide and all-solid Li-ion secondary battery Mar 08, 16 Oct 03, 17 [H01M]
9780559 ESD protection device Mar 06, 14 Oct 03, 17 [H01T, H02H]
9780693 Resonant inverter and resonance power supply apparatus Feb 12, 16 Oct 03, 17 [H02M]
9780752 Assembly with an analog data processing unit and method of using same Jun 01, 11 Oct 03, 17 [H03G, H04R]
9781518 MEMS microphone assembly and method of operating the MEMS microphone assembly May 09, 12 Oct 03, 17 [H04R]
D798814 Coil component Jun 01, 15 Oct 03, 17 [1302]
9773516 Head assembly and magnetic disk device Mar 14, 16 Sep 26, 17 [G11B]
9773599 R-T-B based sintered magnet Feb 13, 13 Sep 26, 17 [H01F]
9773614 Thin film capacitor Jul 20, 15 Sep 26, 17 [H01G]
9774220 Permanent magnet and motor Apr 03, 15 Sep 26, 17 [H01F, C22C, H02K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0226,018 SEMICONDUCTOR CERAMIC COMPOSITION AND PTC THERMISTOR ABAN Feb 01, 17 Aug 10, 17 [H01C, C04B]
2016/0240,761 THERMOELECTRIC DEVICE ABAN Feb 08, 16 Aug 18, 16 [H01L]
9224706 Terminal structure, and semiconductor element and module substrate comprising the same Withdrawn Aug 06, 13 Dec 29, 15 [H01L]
2015/0370,125 LIQUID CRYSTAL LENS ABAN Jun 04, 15 Dec 24, 15 [G02F]
2015/0333,330 LITHIUM ION SECONDARY BATTERY ABAN May 08, 15 Nov 19, 15 [H01M]
2015/0333,362 LITHIUM ION SECONDARY BATTERY ABAN May 08, 15 Nov 19, 15 [H01M]
2015/0249,205 MAGNETIC ELEMENT, AND MAGNETIC HIGH FREQUENCY ELEMENT HAVING THE MAGNETIC ELEMENT ABAN Feb 24, 15 Sep 03, 15 [H01L]
2015/0200,055 LAMINATE-TYPE CERAMIC ELECTRONIC COMPONENTS ABAN Jan 08, 15 Jul 16, 15 [H01G]
2015/0157,278 ELECTRONIC DEVICE, METHOD, AND STORAGE MEDIUM ABAN Dec 09, 14 Jun 11, 15 [G06T, A61B, G08C]
2015/0136,216 COMPOUND SEMICONDUCTOR SOLAR CELL ABAN Feb 19, 13 May 21, 15 [H01L]
2015/0109,063 MAGNETORESISTIVE EFFECT OSCILLATOR ABAN Oct 16, 14 Apr 23, 15 [H03B]
2015/0096,617 COMPOUND SEMICONDUCTOR SOLAR BATTERY ABAN Feb 28, 13 Apr 09, 15 [H01L]
2015/0027,538 COMPOUND SEMICONDUCTOR SOLAR BATTERY AND METHOD OF MANUFACTURING LIGHT ABSORPTION LAYER OF COMPOUND SEMICONDUCTOR SOLAR BATTERY ABAN Feb 28, 13 Jan 29, 15 [H01L]
2015/0001,601 SPIN INJECTION ELECTRODE STRUCTURE AND SPIN TRANSPORT ELEMENT HAVING THE SAME ABAN Feb 12, 13 Jan 01, 15 [H01L]
2015/0006,202 BIOLOGICAL DATA MANAGEMENT METHOD, BIOLOGICAL DATA MANAGEMENT SYSTEM, AND CENTER APPARATUS ABAN Feb 28, 14 Jan 01, 15 [G06F]
2014/0368,963 ELECTRO STATIC DISCHARGE PROTECTION DEVICE ABAN Jan 22, 13 Dec 18, 14 [H05F]
2014/0370,290 IRON NITRIDE BASED MAGNETIC POWDER AND MAGNET USING THE SAME ABAN Jun 10, 14 Dec 18, 14 [H01F, C01B]
2014/0339,458 PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC DEVICE CONTAINING THE SAME ABAN May 14, 13 Nov 20, 14 [H01L]
2014/0311,289 R-T-B BASED SINTERED MAGNET ABAN Apr 22, 14 Oct 23, 14 [H01F]
2014/0296,681 ELECTROCARDIOGRAPH, METHOD FOR MEASURING ELECTROCARDIOGRAM, AND COMPUTER PROGRAM PRODUCT ABAN Mar 04, 14 Oct 02, 14 [A61B]

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