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 1701 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 362 100
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 324 2
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 324 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 181 30
 
 
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 116 41
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 97 64
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 97 10
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 79 55
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0096,617 COMPOUND SEMICONDUCTOR SOLAR BATTERY Feb 28, 13 Apr 09, 15 [H01L]
2015/0097,137 FERRITE COMPOSITION AND ELECTRONIC COMPONENT Oct 06, 14 Apr 09, 15 [H01F]
2015/0097,444 POWER RECEIVING DEVICE AND POWER FEEDING DEVICE Oct 06, 14 Apr 09, 15 [H01F, H02J]
2015/0097,650 SEMICONDUCTOR CERAMIC COMPOSITION AND PTC THERMISTOR Sep 30, 14 Apr 09, 15 [H01C]
2015/0093,633 POSITIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING THEREOF Sep 30, 14 Apr 02, 15 [H01M]
2015/0084,731 PULSE TRANSFORMER Sep 22, 14 Mar 26, 15 [H01F]
2015/0070,005 MAGNETIC MEASUREMENT DEVICE Dec 13, 12 Mar 12, 15 [G01R]
2015/0070,845 POWER SUPPLY DEVICE Sep 04, 14 Mar 12, 15 [H05K]
2015/0061,393 VARIABLE VOLTAGE CIRCUIT Aug 28, 14 Mar 05, 15 [G05F]
2015/0061,808 TRANSFORMER Aug 28, 14 Mar 05, 15 [H01F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,997,321 Method of manufacturing a thin film capacitor having separated dielectric films Oct 26, 12 Apr 07, 15 [H01G, H01L]
9,001,492 Electrode sintered body, multilayer electronic device, internal electrode paste, a manufacturing method of electrode sintered body and a manufacturing method of multilayer electronic device Feb 14, 12 Apr 07, 15 [H01G, B22F, C22C]
8,993,171 Active material, electrode containing the active material, lithium secondary battery including the electrode, and method for making active material Jul 12, 11 Mar 31, 15 [C01B, H01M]
8,994,251 Piezoelectric device having first and second non-metal electroconductive intermediate films Aug 03, 12 Mar 31, 15 [H01L]
8,994,384 Powder sensor Oct 23, 12 Mar 31, 15 [G03G, G01N]
8,994,476 Multilayer electronic component and mounted structure of electronic component Jan 20, 12 Mar 31, 15 [H03H, H01F]
8,984,739 Method of manufacturing a thermally-assisted magnetic recording head that suppresses protrusion of a plasmon generator Oct 14, 11 Mar 24, 15 [G02B, G11B, B82Y]
8,986,568 Sintered magnet and method for producing the sintered magnet Mar 31, 11 Mar 24, 15 [C04B, H01F, B22F, C22C]
8,988,180 Multilayer coil component Feb 01, 13 Mar 24, 15 [H01F]
8,988,813 Microwave-assisted magnetic recording and reproducing device May 19, 14 Mar 24, 15 [G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8,692,414 Wireless power feeder and wireless power transmission system Withdrawn Apr 07, 11 Apr 08, 14 [H01F]
2013/0256,848 ELECTRONIC COMPONENT MODULE AND METHOD OF MANUFACTURING THE SAME ABAN Mar 28, 13 Oct 03, 13 [H01L]
2013/0128,410 METHOD OF MANUFACTURING THIN FILM CAPACITOR AND THIN FILM CAPACITOR ABAN Nov 13, 12 May 23, 13 [H01G]
2013/0099,834 RAMP SIGNAL GENERATION CIRCUIT AND RAMP SIGNAL ADJUSTMENT CIRCUIT ABAN Oct 18, 12 Apr 25, 13 [H03K]
2013/0083,484 COMPOSITE ELECTRONIC COMPONENT AND STRUCTURE FOR MOUNTING COMPOSITE ELECTRONIC COMPONENT ABAN Sep 25, 12 Apr 04, 13 [H05K]
2013/0070,364 THIN FILM MAGNETIC HEAD AND MANUFACTURING METHOD THEREOF ABAN Sep 15, 11 Mar 21, 13 [G11B]
2013/0020,913 ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING ELECTRONIC COMPONENT ABAN Jul 11, 12 Jan 24, 13 [H01C, H01R, H01G, H01F, H01L]
2013/0010,428 FIXING SPRING AND HEAT SINK STRUCTURE FOR ELECTRONIC COMPONENT ABAN Jul 05, 12 Jan 10, 13 [H05K]
2012/0313,743 LAMINATED ELECTRONIC COMPONENT EQUIPPED WITH INDUCTOR ABAN Sep 07, 11 Dec 13, 12 [H01F]
2012/0250,123 APPARATUS AND METHOD FOR EVALUATING HOLOGRAM IMAGE RECORDING MEDIUM ABAN Jan 30, 12 Oct 04, 12 [G03H]
2012/0250,189 MAGNETIC HEAD INCLUDING SIDE SHIELD LAYERS ON BOTH SIDES OF A MR ELEMENT ABAN Mar 29, 11 Oct 04, 12 [G11B]
2012/0250,216 SEMICONDUCTOR CERAMIC AND A MULTILAYER SEMICONDUCTOR CERAMIC CAPACITOR ABAN Mar 27, 12 Oct 04, 12 [H01B, H01G]
2012/0235,778 R-T-B RARE EARTH SINTERED MAGNET ABAN Mar 12, 12 Sep 20, 12 [H01F]
2012/0228,683 SPIN DEVICE, AND MAGNETIC SENSOR AND SPIN FET USING THE SAME ABAN Mar 09, 12 Sep 13, 12 [H01L]
2012/0230,174 OPTICAL RECORDING AND READING DEVICE AND OPTICAL RECORDING AND READING METHOD ABAN Mar 08, 12 Sep 13, 12 [G11B]
2012/0218,712 SPRING FIXTURE FOR ELECTRONIC COMPONENT AND HEAT SINK STRUCTURE ABAN Feb 27, 12 Aug 30, 12 [F16D, H05K]
2012/0200,282 CHIP ELECTRONIC COMPONENT, MOUNTED STRUCTURE OF CHIP ELECTRONIC COMPONENT, AND SWITCHING SUPPLY CIRCUIT ABAN Jan 11, 12 Aug 09, 12 [H01L, G05F]
2012/0162,854 MULTILAYER CERAMIC CAPACITOR ABAN Dec 27, 11 Jun 28, 12 [H01G]
2012/0086,993 PHOTOPOLYMER MEDIUM FOR COLOR HOLOGRAM IMAGE RECORDING AND COLOR HOLOGRAM IMAGE RECORDING METHOD ABAN Sep 06, 11 Apr 12, 12 [G03H]
2012/0075,768 DIELECTRIC CERAMIC COMPOSITION AND MANUFACTURING METHOD THEREOF, AND CERAMIC ELECTRONIC DEVICE ABAN Sep 29, 11 Mar 29, 12 [C04B, H01G]

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