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 1745 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 364 100
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 327 3
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 318 2
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 183 26
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 147 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 114 42
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 97 10
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 95 62
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 77 62
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0048,917 PRINTED CIRCUIT BOARD AND POWER SUPPLY DEVICE Aug 12, 14 Feb 19, 15 [H01F, H05K]
2015/0042,309 FAR ELECTROMAGNETIC FIELD ESTIMATION METHOD AND APPARATUS, AND NEAR ELECTROMAGNETIC FIELD MEASUREMENT APPARATUS Aug 08, 14 Feb 12, 15 [G01R]
2015/0042,436 COIL COMPONENT Jul 28, 14 Feb 12, 15 [H01F]
2015/0035,524 MAGNETIC SENSOR, MAGNETIC HEAD, AND BIOMAGNETIC SENSOR Jul 25, 14 Feb 05, 15 [G01R]
2015/0035,626 DIELECTRIC LINE AND ELECTRONIC COMPONENT Jul 25, 14 Feb 05, 15 [H01P]
2015/0035,713 ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE USING THE SAME Jul 29, 14 Feb 05, 15 [H01Q]
2015/0036,248 ESD PROTECTION COMPONENT AND METHOD FOR MANUFACTURING ESD PROTECTION COMPONENT Jul 24, 14 Feb 05, 15 [H02H]
2015/0036,262 MULTILAYER CERAMIC ELECTRONIC DEVICE Jul 29, 14 Feb 05, 15 [H01G]
2015/0027,538 COMPOUND SEMICONDUCTOR SOLAR BATTERY AND METHOD OF MANUFACTURING LIGHT ABSORPTION LAYER OF COMPOUND SEMICONDUCTOR SOLAR BATTERY Feb 28, 13 Jan 29, 15 [H01L]
2015/0028,723 PIEZOELECTRIC ACTUATOR Jul 18, 14 Jan 29, 15 [H02N, H01L]
2015/0028,965 DIPLEXER INCLUDING TWO BANDPASS FILTERS Jul 08, 14 Jan 29, 15 [H03H]
2015/0028,992 CHIP THERMISTOR AND METHOD OF MANUFACTURING SAME Oct 15, 14 Jan 29, 15 [H01C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,956,547 Piezoelectric composition and piezoelectric element Jan 31, 13 Feb 17, 15 [C04B, H01L]
8,957,692 Method for performing burn-in test Dec 02, 10 Feb 17, 15 [G01R, H01S, G11B]
8,957,744 Multilayer common mode filter Dec 18, 13 Feb 17, 15 [H03H]
8,952,767 Layered bandpass filter Mar 26, 12 Feb 10, 15 [H03H, H01P]
8,952,778 Laminated coil component Aug 20, 12 Feb 10, 15 [H01F]
8,947,850 Multilayer capacitor Jul 11, 12 Feb 03, 15 [H01G]
8,941,458 Coil unit, substrate unit and power supply device Apr 19, 13 Jan 27, 15 [H01F]
D721651 Coil component Jul 12, 12 Jan 27, 15 [1302]
8,936,871 Active material and positive electrode and lithium-ion second battery using same Sep 28, 09 Jan 20, 15 [C01B, H01M]
8,932,762 Active material and positive electrode and lithium-ion second battery using same Aug 16, 13 Jan 13, 15 [C01B, H01M]

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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]
2013/0128,410 METHOD OF MANUFACTURING THIN FILM CAPACITOR AND THIN FILM CAPACITOR Nov 13, 12 May 23, 13 [H01G]
2013/0099,834 RAMP SIGNAL GENERATION CIRCUIT AND RAMP SIGNAL ADJUSTMENT CIRCUIT Oct 18, 12 Apr 25, 13 [H03K]
2013/0083,484 COMPOSITE ELECTRONIC COMPONENT AND STRUCTURE FOR MOUNTING COMPOSITE ELECTRONIC COMPONENT Sep 25, 12 Apr 04, 13 [H05K]
2013/0070,364 THIN FILM MAGNETIC HEAD AND MANUFACTURING METHOD THEREOF Sep 15, 11 Mar 21, 13 [G11B]
2013/0020,913 ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING ELECTRONIC COMPONENT Jul 11, 12 Jan 24, 13 [H01C, H01R, H01G, H01F, H01L]
2013/0010,428 FIXING SPRING AND HEAT SINK STRUCTURE FOR ELECTRONIC COMPONENT Jul 05, 12 Jan 10, 13 [H05K]
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]
2012/0235,778 R-T-B RARE EARTH SINTERED MAGNET Mar 12, 12 Sep 20, 12 [H01F]
2012/0228,683 SPIN DEVICE, AND MAGNETIC SENSOR AND SPIN FET USING THE SAME Mar 09, 12 Sep 13, 12 [H01L]
2012/0230,174 OPTICAL RECORDING AND READING DEVICE AND OPTICAL RECORDING AND READING METHOD Mar 08, 12 Sep 13, 12 [G11B]
2012/0218,712 SPRING FIXTURE FOR ELECTRONIC COMPONENT AND HEAT SINK STRUCTURE Feb 27, 12 Aug 30, 12 [F16D, H05K]
2012/0200,282 CHIP ELECTRONIC COMPONENT, MOUNTED STRUCTURE OF CHIP ELECTRONIC COMPONENT, AND SWITCHING SUPPLY CIRCUIT Jan 11, 12 Aug 09, 12 [H01L, G05F]
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]

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