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 1656 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 372 105
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 350 2
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 327 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 178 27
 
 
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 42
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 100 63
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 99 11
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 80 67
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0235,750 R-T-B BASED SINTERED MAGNET Feb 13, 13 Aug 20, 15 [H01F]
2015/0235,758 COIL COMPONENT AND TERMINAL COMPONENT USED THEREIN Feb 17, 15 Aug 20, 15 [H01F]
2015/0235,767 THIN FILM CAPACITOR Dec 19, 14 Aug 20, 15 [H01G]
2015/0235,885 PURGE SYSTEM, POD USED WITH PURGE SYSTEM, AND LOAD PORT APPARATUS Feb 20, 15 Aug 20, 15 [H01L, B65B]
2015/0236,666 DIRECTIONAL COUPLER Feb 13, 15 Aug 20, 15 [H03H, H01P]
2015/0228,394 MAGNETIC ELEMENT Feb 04, 15 Aug 13, 15 [H01F]
2015/0229,238 PIEZOELECTRIC DEVICE, PIEZOELECTRIC ACTUATOR, HARD DISK DRIVE, AND INKJET PRINTER APPARATUS Feb 10, 14 Aug 13, 15 [H02N, H01L]
2015/0221,858 PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC ELEMENT Jan 30, 15 Aug 06, 15 [H01L]
2015/0222,009 ANTENNA DEVICE AND PORTABLE ELECTRONIC DEVICE USING THE SAME Jan 27, 15 Aug 06, 15 [H01Q]
2015/0213,941 REACTOR Jan 22, 15 Jul 30, 15 [H01F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,110,124 Magnetic sensor and magnetic detection apparatus Jul 01, 11 Aug 18, 15 [G01R, G11C, H01L]
9,111,674 R-T-B based permanent magnet Apr 21, 14 Aug 18, 15 [H01F]
9,111,681 Thin film capacitor Jun 21, 13 Aug 18, 15 [H01G, H01L]
9,112,135 Piezoelectric element and method for manufacturing piezoelectric element Jun 29, 12 Aug 18, 15 [G11B, H01L]
9,105,405 Ceramic electronic component with metal terminals Sep 11, 13 Aug 11, 15 [H01G]
9,105,845 Piezoelectric ceramic comprising an oxide and piezoelectric device Dec 12, 12 Aug 11, 15 [C04B, H01L]
9,107,323 Band-pass filter module and module substrate Jul 21, 11 Aug 11, 15 [H03H, H05K, H01P]
9,099,643 Method of etching a magnesium oxide film Feb 26, 13 Aug 04, 15 [G01R, G11B, H01L]
9,099,968 Bias control circuit Jan 17, 12 Aug 04, 15 [H03G, H03F]
9,093,712 Active material, manufacturing method for active material, and lithium ion secondary battery Jul 21, 11 Jul 28, 15 [C01G, H01M]

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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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