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 1673 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 365 105
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 341 2
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 325 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 180 27
 
 
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 42
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 98 62
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 97 12
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 77 67
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0187,476 SOFT MAGNETIC POWDER CORE Dec 19, 14 Jul 02, 15 [H01F, C22C]
2015/0187,495 ELECTRONIC DEVICE Nov 14, 14 Jul 02, 15 [H01G]
2015/0189,727 ESD PROTECTION COMPONENT Dec 12, 14 Jul 02, 15 [H01B, H05F]
2015/0189,798 ESD PROTECTION COMPONENT Dec 16, 14 Jul 02, 15 [H05K]
2015/0179,317 RARE EARTH BASED MAGNET Dec 22, 14 Jun 25, 15 [H01F]
2015/0179,318 RARE EARTH BASED MAGNET Dec 22, 14 Jun 25, 15 [H01F, C22C]
2015/0179,319 RARE EARTH BASED MAGNET Dec 22, 14 Jun 25, 15 [H01F]
2015/0180,034 LITHIUM ION SECONDARY BATTERY Jul 25, 13 Jun 25, 15 [H01M]
2015/0180,112 DIRECTIONAL COUPLER AND WIRELESS COMMUNICATION DEVICE Mar 04, 15 Jun 25, 15 [H03H, H04B, H01P]
2015/0180,128 FERRITE COMPOSITION, FERRITE PLATE, MEMBER FOR ANTENNA ELEMENT, AND ANTENNA ELEMENT Nov 26, 14 Jun 25, 15 [H01Q, H01F]
2015/0180,419 HIGH-FREQUENCY AMPLIFIER Dec 16, 14 Jun 25, 15 [H03F]
2015/0170,675 THERMALLY-ASSISTED MAGNETIC RECORDING METHOD Dec 12, 13 Jun 18, 15 [G11B]
2015/0170,677 MAGNETIC RECORDING AND REPRODUCING APPARATUS Dec 10, 14 Jun 18, 15 [G11B]
2015/0170,810 SINTERED MAGNET Jun 21, 13 Jun 18, 15 [H01F, B22F, C22C]
2015/0170,811 FERRITE MAGNETIC MATERIAL, FERRITE SINTERED MAGNET, AND MOTOR Aug 01, 13 Jun 18, 15 [C04B, H01F, C22C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,070,500 R-T-B based permanent magnet Apr 21, 14 Jun 30, 15 [H01F]
9,070,505 Coil apparatus and non-contact power transmission apparatus Aug 19, 11 Jun 30, 15 [H01F, H02J]
9,070,606 Terminal structure and semiconductor device Aug 06, 13 Jun 30, 15 [H01L]
9,070,857 Piezoelectric element Jun 27, 12 Jun 30, 15 [H01L]
9,071,005 Terminal block and electronic device comprising same Jan 23, 14 Jun 30, 15 [H01R]
9,064,623 Electronic component Aug 31, 12 Jun 23, 15 [H01C, H01G]
9,065,049 Thin film piezoelectric device Sep 21, 12 Jun 23, 15 [G01C, H01L]
9,058,928 Wireless power feeder and wireless power transmission system Dec 28, 10 Jun 16, 15 [H04M, H01F, H02J]
9,053,864 Multilayer capacitor and method for manufacturing the same May 21, 12 Jun 09, 15 [H01G]
9,054,428 Antenna and wireless communication unit Dec 21, 11 Jun 09, 15 [H01Q]
9,055,373 Piezoelectric sounder Sep 19, 13 Jun 09, 15 [H04R]

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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]
2013/0027,273 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]
2012/0241,883 SPIN TRANSPORT DEVICE AND MAGNETIC HEAD ABAN Mar 01, 12 Sep 27, 12 [H01L]
2012/0235,778 R-T-B RARE EARTH SINTERED MAGNET ABAN Mar 12, 12 Sep 20, 12 [H01F]

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