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 1583 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 384 105
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 369 2
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 335 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 174 29
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 155 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 127 39
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 105 11
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 94 69
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 83 68
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0105,947 ESD PROTECTION DEVICE Sep 30, 15 Apr 14, 16 [H05F]
2016/0099,465 STABILIZED LITHIUM POWDER, AND NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING THE SAME Oct 05, 15 Apr 07, 16 [H01M]
2016/0099,467 STABILIZED LITHIUM POWDER Oct 05, 15 Apr 07, 16 [H01M]
2016/0093,318 MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS Sep 08, 15 Mar 31, 16 [G11B]
2016/0093,793 PIEZOELECTRIC COMPOSITION, PIEZOELECTRIC ELEMENT AND SPUTTERING TARGET Sep 21, 15 Mar 31, 16 [C04B, C23C, H01L]
2016/0093,858 SEPARATOR AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME Sep 29, 15 Mar 31, 16 [H01M]
2016/0086,701 R-T-B BASED SINTERED MAGNET Jul 03, 14 Mar 24, 16 [H01F, H02K]
2016/0086,703 R-T-B BASED PERMANENT MAGNET Feb 12, 14 Mar 24, 16 [H01F, H02K]
2016/0079,002 DIELECTRIC FILM AND DIELECTRIC ELEMENT Aug 24, 15 Mar 17, 16 [H01G]
2016/0079,866 DC-TO-DC CONVERTER Sep 17, 15 Mar 17, 16 [H02M]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,318,132 Magnetic head, magnetic head assembly, and magnetic recording and reproducing apparatus Mar 16, 15 Apr 19, 16 [G11B]
9,318,244 Soft magnetic powder core Feb 04, 13 Apr 19, 16 [H01F, B22F, C22C]
9,320,146 Electronic circuit module component Aug 05, 13 Apr 19, 16 [H01G, H05K]
9,312,061 Pulse transformer Sep 22, 14 Apr 12, 16 [H01F]
9,304,177 Movable coil scanner systems and methods Mar 22, 13 Apr 05, 16 [G01R, G01N]
9,305,573 Thermally assisted recording head utilizing laser light with limited wavelength range Mar 14, 13 Apr 05, 16 [G11B, B01J]
9,305,689 Injection molding composition and producing method thereof May 11, 12 Apr 05, 16 [C04B, H01F, B28B]
9,305,690 Composite ferrite composition and electronic device Apr 30, 14 Apr 05, 16 [H01F]
9,305,698 Coil component Sep 02, 14 Apr 05, 16 [H01F]
9,305,708 Multilayer ceramic electronic device Jul 29, 14 Apr 05, 16 [H01G]
9,306,111 Semiconductor material and method of production Nov 18, 11 Apr 05, 16 [C23C, H01L, C25D]

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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]
2015/0027,538 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]
2013/0256,848 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]
2013/0128,387 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]

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