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 1571 5
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 404 2
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 388 113
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 356 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 177 27
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 136 41
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 114 12
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 102 68
 
 
H01P WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE 86 5
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0005,395 ANTENNA DEVICE Jun 23, 16 Jan 05, 17 [H01Q, H04B]
2016/0376,198 DIELECTRIC COMPOSITION AND ELECTRONIC COMPONENT Jun 24, 16 Dec 29, 16 [C04B]
2016/0376,696 SPUTTERING TARGET Jun 29, 16 Dec 29, 16 [C23C, H01J]
2016/0379,732 DIELECTRIC COMPOSITION AND ELECTRONIC COMPONENT Jun 24, 16 Dec 29, 16 [H01B, C01G]
2016/0379,739 VOLTAGE NONLINEAR RESISTOR CERAMIC AND ELECTRONIC COMPONENT Jun 17, 16 Dec 29, 16 [H01C, C04B]
2016/0379,751 PULSE TRANSFORMER Jun 24, 16 Dec 29, 16 [H01F]
2016/0370,438 MAGNETIC FIELD GENERATOR, MAGNETIC SENSOR SYSTEM AND MAGNETIC SENSOR Jun 17, 16 Dec 22, 16 [G01R, H01F]
2016/0365,181 PERMANENT MAGNET AND ROTATING MACHINE INCLUDING THE SAME Apr 21, 16 Dec 15, 16 [H01F, C22C, H02K]
2016/0365,793 SWITCHING POWER SUPPLY UNIT May 25, 16 Dec 15, 16 [H02M]
2016/0351,316 COIL COMPONENT May 27, 16 Dec 01, 16 [H01F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,536,645 Ferrite composition and electronic component Oct 07, 14 Jan 03, 17 [C04B, H01F]
9,536,765 Load port unit and EFEM system May 30, 14 Jan 03, 17 [H01L]
9,537,083 Piezoelectric composition and piezoelectric device Mar 07, 14 Jan 03, 17 [C04B, H01L]
9,530,437 Magnetic head, head gimbal assembly, and magnetic recording and reproducing apparatus Sep 08, 15 Dec 27, 16 [G11B]
9,530,548 Method for manufacturing Sr ferrite particle for sintered magnet, method for using Sr ferrite particle, Sr ferrite sintered magnet and method for manufacturing same, and motor and generator Jun 07, 13 Dec 27, 16 [C04B, C01G, H01F]
9,530,562 Dielectric ceramic composition and dielectric device Feb 04, 14 Dec 27, 16 [H01B, C04B, H01G, G06F]
9,530,563 Dielectric ceramic composition and dielectric element Feb 04, 14 Dec 27, 16 [H01B, C04B, H01G]
9,530,566 Multilayer ceramic electronic component Dec 19, 14 Dec 27, 16 [H01G]
9,531,053 Directional coupler and wireless communication device Feb 22, 16 Dec 27, 16 [H04B, H01P]
9,532,461 Manufacturing apparatus of electronic component and manufacturing method thereof Mar 25, 14 Dec 27, 16 [G03B, H05K]
D774453 Battery charger for a biomedical signal recorder Oct 10, 14 Dec 20, 16 [1302]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9,224,706 Terminal structure, and semiconductor element and module substrate comprising the same Withdrawn Aug 06, 13 Dec 29, 15 [H01L]
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]
2015/0136,216 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]
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]
2014/0233,361 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME ABAN Feb 21, 13 Aug 21, 14 [G11B]
2014/0211,515 DC-DC CONVERTER AND POWER SUPPLY DEVICE HAVING DC-DC CONVERTER ABAN Jan 23, 14 Jul 31, 14 [H02M]
2014/0203,901 REACTOR AND ELECTRICAL DEVICE ABAN Aug 27, 12 Jul 24, 14 [H01F]
8,692,414 Wireless power feeder and wireless power transmission system Withdrawn Apr 07, 11 Apr 08, 14 [H01F]
2014/0084,754 THIN FILM PIEZOELECTRIC DEVICE ABAN Sep 21, 12 Mar 27, 14 [H01L]
2014/0070,891 HIGH FREQUENCY AMPLIFIER ABAN Sep 20, 12 Mar 13, 14 [H03F]
2014/0020,738 SOLAR CELL, AND PROCESS FOR PRODUCING SOLAR CELL ABAN Mar 28, 12 Jan 23, 14 [H01L]
2013/0336,018 CONVERTER ABAN Jun 11, 13 Dec 19, 13 [H02M]

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