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 1568 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 382 110
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 378 2
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 341 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 174 26
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 156 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 128 42
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 113 10
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 94 72
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 85 68
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0178,445 THERMISTOR Nov 16, 15 Jun 23, 16 [G01K]
2016/0179,124 APPARATUS AND METHODS FOR TEMPERATURE COMPENSATION OF VARIABLE CAPACITORS Dec 15, 15 Jun 23, 16 [G05F]
2016/0180,993 R-T-B BASED SINTERED MAGNET AND MOTOR Aug 08, 14 Jun 23, 16 [H01F, C22C]
2016/0181,698 ANTENNA ELEMENT, ANTENNA DEVICE, AND WIRELESS COMMUNICATION EQUIPMENT USING THE SAME Dec 08, 15 Jun 23, 16 [H01Q]
2016/0169,707 ROTATING FIELD SENSOR Feb 23, 16 Jun 16, 16 [G01D]
2016/0161,970 APPARATUS AND METHODS FOR VARIABLE CAPACITOR ARRAYS Nov 25, 15 Jun 09, 16 [G05F]
2016/0163,434 R-T-B BASED SINTERED MAGNET AND MOTOR Aug 08, 14 Jun 09, 16 [H01F, B22F, C22C, H02K]
2016/0163,435 R-T-B BASED SINTERED MAGNET AND ROTATING MACHINE Aug 08, 14 Jun 09, 16 [H01F]
2016/0163,454 MULTILAYER CERAMIC CAPACITOR Dec 04, 15 Jun 09, 16 [H01G]
2016/0163,455 MULTILAYER CERAMIC CAPACITOR Dec 04, 15 Jun 09, 16 [H01G]
2016/0163,463 THIN FILM CAPACITOR Nov 30, 15 Jun 09, 16 [H01G]
2016/0163,464 APPARATUS AND METHODS FOR HIGH VOLTAGE VARIABLE CAPACITOR ARRAYS WITH BODY BIASING RESISTORS May 06, 15 Jun 09, 16 [H01G]
2016/0163,697 APPARATUS AND METHODS FOR HIGH VOLTAGE VARIABLE CAPACITOR ARRAYS WITH BODY-TO-GATE DIODES May 06, 15 Jun 09, 16 [H03H]
2016/0164,178 ANTENNA DEVICE AND PORTABLE ELECTRONIC DEVICE USING THE SAME Dec 04, 15 Jun 09, 16 [H01Q]
2016/0164,481 APPARATUS AND METHODS FOR TUNABLE FILTERS Dec 03, 14 Jun 09, 16 [H03H]
2016/0164,482 APPARATUS AND METHODS FOR HIGH VOLTAGE VARIABLE CAPACITOR ARRAYS WITH DRIFT PROTECTION RESISTORS May 06, 15 Jun 09, 16 [H03H]
2016/0164,484 APPARATUS AND METHODS FOR HIGH VOLTAGE VARIABLE CAPACITORS Dec 03, 14 Jun 09, 16 [H03H]
2016/0164,492 APPARATUS AND METHODS FOR HIGH VOLTAGE VARIABLE CAPACITOR ARRAYS WITH FEED-FORWARD CAPACITORS May 06, 15 Jun 09, 16 [H03H, H01L]
2016/0154,071 MAGNETIC SENSOR, MAGNETIC HEAD, AND BIOMAGNETIC SENSOR Nov 13, 15 Jun 02, 16 [G01R, G11B, A61B]
2016/0155,550 COIL COMPONENT Nov 25, 15 Jun 02, 16 [H01F]
2016/0155,556 COIL COMPONENT AND METHOD FOR MANUFACTURING THE SAME Nov 24, 15 Jun 02, 16 [H01F]
2016/0155,561 PULSE TRANSFORMER Nov 20, 15 Jun 02, 16 [H01F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,372,243 Magnetic sensor Jul 18, 14 Jun 21, 16 [G01R]
9,374,936 Workpiece mounting apparatus Jun 17, 14 Jun 21, 16 [H01L, H05K]
9,361,912 High moment side shield design for area density improvement of perpendicular magnetic recording (PMR) writer Apr 20, 15 Jun 07, 16 [G11B]
9,362,031 Semiconductor ceramic composition and PTC thermistor Sep 30, 14 Jun 07, 16 [H01C]
9,362,038 Magnetic element Feb 04, 15 Jun 07, 16 [G11B, G11C, H01F, H01L]
9,362,041 Common mode filter Oct 03, 13 Jun 07, 16 [H01F]
9,362,882 Apparatus and methods for segmented variable capacitor arrays Jan 23, 15 Jun 07, 16 [H03H, H01L]
9,362,883 Passive radio frequency signal handler Mar 03, 14 Jun 07, 16 [H03H, H03F, H01P]
9,354,285 Magnetic measurement device Dec 13, 12 May 31, 16 [G01R]
9,355,878 Substrate processing apparatus Oct 11, 13 May 31, 16 [H01L]
9,356,449 Wireless power receiver, wireless power transmission system, and power controller Oct 10, 11 May 31, 16 [H03H, H01F, H02J]
9,356,474 Wireless power feeder and wireless power transmission system Sep 27, 12 May 31, 16 [H02J]

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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]
2015/0200,055 LAMINATE-TYPE CERAMIC ELECTRONIC COMPONENTS ABAN Jan 08, 15 Jul 16, 15 [H01G]
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]
2014/0339,458 PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC DEVICE CONTAINING THE SAME ABAN May 14, 13 Nov 20, 14 [H01L]
2014/0233,361 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME ABAN Feb 21, 13 Aug 21, 14 [G11B]
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]
2013/0336,018 CONVERTER ABAN Jun 11, 13 Dec 19, 13 [H02M]
2013/0316,490 SOLAR CELL AND SOLAR CELL PRODUCTION METHOD ABAN Dec 28, 11 Nov 28, 13 [H01L]
2013/0256,848 ELECTRONIC COMPONENT MODULE AND METHOD OF MANUFACTURING THE SAME ABAN Mar 28, 13 Oct 03, 13 [H01L]
2013/0242,430 MAGNETIC RECORDING MEDIUM, METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING OR REPRODUCING APPARATUS ABAN Mar 08, 13 Sep 19, 13 [G11B]
2013/0208,401 ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING ELECTRONIC COMPONENT ABAN Feb 01, 13 Aug 15, 13 [H01G]
2013/0192,873 STRUCTURE BODY AND ELECTRONIC COMPONENT AND PRINTED WIRING BOARD INCLUDING THE SAME ABAN Nov 15, 12 Aug 01, 13 [H01B]
2013/0190,163 DIELECTRIC CERAMIC AND ELECTRONIC COMPONENT USING THE SAME ABAN Dec 14, 12 Jul 25, 13 [H01B]
2013/0168,599 PRECURSOR, PROCESS FOR PRODUCTION OF PRECURSOR, PROCESS FOR PRODUCTION OF ACTIVE MATERIAL, AND LITHIUM ION SECONDARY BATTERY ABAN Jul 19, 11 Jul 04, 13 [H01M]
2013/0169,267 CURRENT SENSOR ABAN Dec 20, 12 Jul 04, 13 [G01R]
2013/0139,378 METHOD OF MANUFACTURING THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND ALIGNMENT APPARATUS ABAN Dec 01, 11 Jun 06, 13 [B23P, G11B]

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