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 1672 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 366 100
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 344 2
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 326 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 180 26
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 146 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 116 45
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 99 60
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 98 12
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 80 65
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0204,696 ROTATING FIELD SENSOR AND ANGLE DETERMINATION METHOD USING THE SAME Sep 29, 14 Jul 23, 15 [G01D]
2015/0205,409 TRANSPARENT CONDUCTOR AND TOUCH PANEL Jan 20, 15 Jul 23, 15 [G06F]
2015/0206,661 ELECTRONIC COMPONENT Jan 15, 15 Jul 23, 15 [H01G]
2015/0207,057 THIN FILM PIEZOELECTRIC ELEMENT, THIN FILM PIEZOELECTRIC ACTUATOR, AND THIN FILM PIEZOELECTRIC SENSOR; AND HARD DISK DRIVE, AND INKJET PRINTER Jan 23, 14 Jul 23, 15 [G11B, B41J, H01L]
2015/0208,534 INSULATING COMPONENT AND CONDUCTIVE COMPONENT Jan 20, 15 Jul 23, 15 [H01F, H05K]
2015/0208,546 POWER SUPPLY DEVICE Jan 20, 15 Jul 23, 15 [H05K]
2015/0198,430 MAGNETISM DETECTION ELEMENT AND ROTATION DETECTOR Dec 10, 14 Jul 16, 15 [G01R, G01B]
2015/0200,055 LAMINATE-TYPE CERAMIC ELECTRONIC COMPONENTS Jan 08, 15 Jul 16, 15 [H01G]
2015/0194,169 PERPENDICULAR MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING UNIT Jan 08, 14 Jul 09, 15 [G11B]
2015/0194,328 LOAD PORT APPARATUS Dec 29, 14 Jul 09, 15 [H01L]
2015/0194,592 PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE Nov 28, 12 Jul 09, 15 [H01L]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,086,444 Magnetic field detection device and current sensor Dec 28, 10 Jul 21, 15 [G01R, B82Y]
9,087,529 Manufacturing method of magnet head able to reduce electrode film for plating Mar 18, 13 Jul 21, 15 [G11B]
9,087,623 Voltage nonlinear resistor ceramic composition and electronic component Dec 10, 13 Jul 21, 15 [H01C, H01B, C04B]
9,087,982 Manufacturing method for pattern multilayer body and mask set Nov 18, 13 Jul 21, 15 [G03F, H01L]
9,088,244 Frequency converter Sep 07, 12 Jul 21, 15 [H03D, H01L, H04B]
9,082,432 Thin film magnetic head, head gimbal assembly, and magnetic recording device Aug 25, 14 Jul 14, 15 [G11B]
9,082,537 R-T-B based permanent magnet Apr 25, 14 Jul 14, 15 [H01F]
9,082,544 Bobbin and coil component Jan 23, 14 Jul 14, 15 [H01F]
9,083,013 Electrochemical device Jul 22, 11 Jul 14, 15 [H01M]
9,083,042 Negative electrode active material, electrode containing the same, and lithium ion secondary battery having the electrode Mar 18, 13 Jul 14, 15 [H01M]
9,083,310 Laminated structural type balun Jul 03, 12 Jul 14, 15 [H03H, H01P]
D734257 Transformer Jul 24, 12 Jul 14, 15 [1302]
9,076,469 Head assembly Feb 11, 15 Jul 07, 15 [G11B]
9,076,576 Chip thermistor and thermistor assembly board Oct 18, 11 Jul 07, 15 [H01C]
9,076,599 Laminated ceramic electronic parts Oct 12, 12 Jul 07, 15 [H01G]
9,076,600 Thin film capacitor Mar 12, 13 Jul 07, 15 [H01G]
9,076,968 Piezoelectric element, piezoelectric actuator, piezoelectric sensor, hard disk drive, and inkjet printer device Mar 14, 13 Jul 07, 15 [B41J, H01L, G01L]
9,077,059 Thin film balun Sep 19, 13 Jul 07, 15 [H03H, H01P]
9,077,306 Mixer having frequency selectivity Sep 07, 12 Jul 07, 15 [H03H, H03D, H01L, H04B]

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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]
2013/0242,430 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]
2013/0168,599 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]
2013/0128,387 SUSPENSION WITH HIGH CONDUCTIVITY GROUND LAYER ABAN Nov 22, 11 May 23, 13 [G11B]
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]
2013/0071,554 METHOD OF MANUFACTURING THIN FILM CAPACITOR AND THIN FILM CAPACITOR ABAN Nov 13, 12 Mar 21, 13 [H01G]
2013/0071,555 METHOD OF MANUFACTURING THIN FILM CAPACITOR AND THIN FILM CAPACITOR ABAN Nov 13, 12 Mar 21, 13 [H01G]
2013/0027,273 DIRECTIONAL COUPLER AND WIRELESS COMMUNICATION DEVICE ABAN Jul 20, 12 Jan 31, 13 [H01Q, H01P]
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]
2012/0313,729 LC COMPOSITE COMPONENT AND STRUCTURE FOR MOUNTING LC COMPOSITE COMPONENT ABAN May 24, 12 Dec 13, 12 [H03H, 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]

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