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 1567 5
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 390 2
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 385 111
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 353 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 176 26
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 159 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 134 40
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 112 12
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 98 68
 
 
H01P WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE 87 5
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0275,975 MAGNETIC HEAD DEVICE Mar 16, 16 Sep 22, 16 [G11B]
2016/0275,976 MAGNETIC HEAD DEVICE Mar 16, 16 Sep 22, 16 [G11B]
2016/0276,073 MAGNETIC MATERIAL Jan 16, 14 Sep 22, 16 [C23C, H01F]
2016/0276,075 PERMANENT MAGNET Mar 18, 16 Sep 22, 16 [H01F]
2016/0276,189 GAS PURGE APPARATUS, LOAD PORT APPARATUS, AND GAS PURGE METHOD Mar 18, 16 Sep 22, 16 [H01L]
2016/0276,749 BENT-SHAPED ANTENNA DEVICE Mar 14, 16 Sep 22, 16 [H01Q]
2016/0276,941 SERIES COMPENSATING ELECTRIC POWER TRANSMISSION SYSTEM Mar 18, 16 Sep 22, 16 [H02M]
2016/0277,000 MAGNETORESISTIVE EFFECT DEVICE Mar 10, 16 Sep 22, 16 [H03H, H01P]
2016/0264,474 DIELECTRIC CERAMIC COMPOSITION AND CERAMIC ELECTRONIC DEVICE Mar 08, 16 Sep 15, 16 [C04B, H01G]
2016/0266,216 MAGNETIC SENSOR Mar 14, 16 Sep 15, 16 [G01R]
2016/0266,218 MAGNETIC SENSOR Mar 14, 16 Sep 15, 16 [G01R]
2016/0266,219 MAGNETIC SENSOR Mar 14, 16 Sep 15, 16 [G01R]
2016/0267,928 HEAD ASSEMBLY AND MAGNETIC DISK DEVICE Mar 14, 16 Sep 15, 16 [G11B]
2016/0267,929 HEAD ASSEMBLY AND MAGNETIC DISK DEVICE Mar 14, 16 Sep 15, 16 [G11B]
2016/0268,045 DIELECTRIC CERAMIC COMPOSITION AND CERAMIC ELECTRONIC DEVICE Mar 08, 16 Sep 15, 16 [C04B, H01G]
2016/0268,628 GARNET-TYPE LI-ION CONDUCTIVE OXIDE AND ALL-SOLID LI-ION SECONDARY BATTERY Mar 08, 16 Sep 15, 16 [H01M]
2016/0268,629 GARNET-TYPE LI-ION CONDUCTIVE OXIDE Mar 08, 16 Sep 15, 16 [H01M]
2016/0268,630 Li-Ion Conductive Oxide Ceramic Material Including Garnet-Type or Similar Crystal Structure Mar 08, 16 Sep 15, 16 [H01M]
2016/0268,668 DIRECTIONAL COUPLER AND WIRELESS COMMUNICATION DEVICE Feb 12, 16 Sep 15, 16 [H04B, H01P]
2016/0258,938 METHOD OF DETECTING AN ANALYTE IN A SAMPLE Mar 04, 16 Sep 08, 16 [G01N]
2016/0260,546 ELECTRONIC DEVICE Mar 02, 16 Sep 08, 16 [H01G]
2016/0261,146 COIL UNIT, WIRELESS POWER FEEDING DEVICE, WIRELESS POWER RECEIVING DEVICE, AND WIRELESS POWER TRANSMISSION DEVICE Feb 22, 16 Sep 08, 16 [H01F, H02J]
2016/0261,585 AUTHENTICATION INFORMATION MANAGEMENT SYSTEM, AUTHENTICATION INFORMATION MANAGEMENT APPARATUS, RECORDING MEDIUM, AND AUTHENTICATION INFORMATION MANAGEMENT METHOD May 12, 16 Sep 08, 16 [H04L, G06F]
2016/0254,580 NON-RECIPROCAL CIRCUIT DEVICE AND COMMUNICATION APPARATUS USING THE SAME Feb 19, 16 Sep 01, 16 [H01P]
2016/0254,581 NON-RECIPROCAL CIRCUIT DEVICE AND COMMUNICATION APPARATUS USING THE SAME Feb 19, 16 Sep 01, 16 [H01P]
2016/0254,706 COIL UNIT, WIRELESS POWER FEEDING DEVICE, WIRELESS POWER RECEIVING DEVICE, AND WIRELESS POWER TRANSMISSION DEVICE Feb 22, 16 Sep 01, 16 [B60L, H02J]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,449,749 Signal handling apparatus for radio frequency circuits Sep 12, 13 Sep 20, 16 [H03H, H01G, H01F, H01L, H01P]
9,450,168 Multilayer piezoelectric device May 22, 15 Sep 20, 16 [H01L]
9,450,230 Lithium-ion secondary battery including polybenzimidazole and method of manufacturing lithium-ion secondary battery Feb 09, 10 Sep 20, 16 [H01M]
9,450,497 Current resonance DC-DC converter Sep 29, 14 Sep 20, 16 [H02M]
9,440,885 Dielectric ceramic composition and electronic component Mar 19, 15 Sep 13, 16 [C04B, H01G]
9,443,657 Piezo controlled variable capacitor Dec 10, 13 Sep 13, 16 [H01G]
9,445,525 Power supply device Sep 04, 14 Sep 13, 16 [H05K]
9,437,807 Piezoelectric composition and piezoelectric element Mar 31, 15 Sep 06, 16 [C04B, H01L]
9,437,865 Active material for lithium ion secondary battery, and lithium ion secondary battery Mar 26, 13 Sep 06, 16 [H01M]
9,438,124 Power supply circuit May 05, 14 Sep 06, 16 [H02M]
9,439,288 Mounting structure of chip component and electronic module using the same Nov 26, 13 Sep 06, 16 [H05K]
9,431,174 Multilayer capacitor Oct 10, 13 Aug 30, 16 [H01G]

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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]
2015/0109,063 MAGNETORESISTIVE EFFECT OSCILLATOR ABAN Oct 16, 14 Apr 23, 15 [H03B]
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]
2014/0233,361 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]
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]

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