TDK CORPORATION

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Technologies

Intl Class Technology # of Patents/ App Rank in Class
 
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 1754 5
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 359 97
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 327 3
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 308 1
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 186 28
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 145 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 113 43
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 96 10
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 91 58
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 78 63
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0333,183 PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING SAME Apr 09, 14 Nov 13, 14 [H01L]
2014/0333,274 COMPLEX POWER MANAGEMENT DEVICE AND COMMUNICATION DEVICE May 08, 14 Nov 13, 14 [H02M]
2014/0333,405 COMPOSITE FERRITE COMPOSITION AND ELECTRONIC DEVICE Apr 30, 14 Nov 13, 14 [H01F]
2014/0328,088 POWER SUPPLY CIRCUIT May 05, 14 Nov 06, 14 [H02M]
2014/0311,287 R-T-B BASED SINTERED MAGNET Apr 16, 14 Oct 23, 14 [H01F]
2014/0311,288 R-T-B BASED SINTERED MAGNET Apr 22, 14 Oct 23, 14 [H01F]
2014/0311,289 R-T-B BASED SINTERED MAGNET Apr 22, 14 Oct 23, 14 [H01F]
2014/0311,290 R-T-B BASED SINTERED MAGNET Apr 22, 14 Oct 23, 14 [H01F]
2014/0311,291 R-T-B BASED SINTERED MAGNET Apr 22, 14 Oct 23, 14 [H01F]
2014/0312,972 HIGH-FREQUENCY AMPLIFIER CIRCUIT, SEMICONDUCTOR DEVICE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE Apr 10, 14 Oct 23, 14 [H03F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,885,370 Current-fed isolation converter Jul 26, 12 Nov 11, 14 [H02H, H02M]
8,876,173 Substrate storage pod and lid opening/closing system for the same Mar 07, 11 Nov 04, 14 [E05C, E05F, B65D]
8,878,641 Electronic component Nov 11, 11 Nov 04, 14 [H01F]
8,872,514 Magnetic sensor, magnetic detector, and magnetic head Jan 31, 11 Oct 28, 14 [G01R, G11B, B82Y]
8,873,185 Thermally-assisted magnetic recording head Mar 25, 13 Oct 28, 14 [G11B]
8,873,351 Thermally-assisted magnetic recording head, head gimbal assembly, and magnetic recording device Aug 28, 13 Oct 28, 14 [G11B]
8,864,925 Method for producing laminated electronic component, and laminated electronic component Jul 21, 11 Oct 21, 14 [H03H, H01G, B29C, B32B, C03B]
8,866,041 Apparatus and method of manufacturing laser diode unit utilizing submount bar Apr 12, 12 Oct 21, 14 [H01S, B23K]
8,866,568 Signal transmission device, filter, and inter-substrate communication device Aug 30, 11 Oct 21, 14 [H01P]
8,866,577 Coil component May 09, 12 Oct 21, 14 [H01F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
8,692,414 Wireless power feeder and wireless power transmission system Apr 07, 11 Apr 08, 14 [H01F]
2013/0256,848 ELECTRONIC COMPONENT MODULE AND METHOD OF MANUFACTURING THE SAME Mar 28, 13 Oct 03, 13 [H01L]
2013/0099,834 RAMP SIGNAL GENERATION CIRCUIT AND RAMP SIGNAL ADJUSTMENT CIRCUIT Oct 18, 12 Apr 25, 13 [H03K]
2013/0070,364 THIN FILM MAGNETIC HEAD AND MANUFACTURING METHOD THEREOF Sep 15, 11 Mar 21, 13 [G11B]
2012/0313,743 LAMINATED ELECTRONIC COMPONENT EQUIPPED WITH INDUCTOR Sep 07, 11 Dec 13, 12 [H01F]
2012/0250,123 APPARATUS AND METHOD FOR EVALUATING HOLOGRAM IMAGE RECORDING MEDIUM Jan 30, 12 Oct 04, 12 [G03H]
2012/0250,189 MAGNETIC HEAD INCLUDING SIDE SHIELD LAYERS ON BOTH SIDES OF A MR ELEMENT Mar 29, 11 Oct 04, 12 [G11B]
2012/0250,216 SEMICONDUCTOR CERAMIC AND A MULTILAYER SEMICONDUCTOR CERAMIC CAPACITOR Mar 27, 12 Oct 04, 12 [H01B, H01G]
2012/0228,683 SPIN DEVICE, AND MAGNETIC SENSOR AND SPIN FET USING THE SAME Mar 09, 12 Sep 13, 12 [H01L]
2012/0230,174 OPTICAL RECORDING AND READING DEVICE AND OPTICAL RECORDING AND READING METHOD Mar 08, 12 Sep 13, 12 [G11B]
2012/0218,712 SPRING FIXTURE FOR ELECTRONIC COMPONENT AND HEAT SINK STRUCTURE Feb 27, 12 Aug 30, 12 [F16D, H05K]
2012/0162,854 MULTILAYER CERAMIC CAPACITOR Dec 27, 11 Jun 28, 12 [H01G]
2012/0086,993 PHOTOPOLYMER MEDIUM FOR COLOR HOLOGRAM IMAGE RECORDING AND COLOR HOLOGRAM IMAGE RECORDING METHOD Sep 06, 11 Apr 12, 12 [G03H]
2012/0075,768 DIELECTRIC CERAMIC COMPOSITION AND MANUFACTURING METHOD THEREOF, AND CERAMIC ELECTRONIC DEVICE Sep 29, 11 Mar 29, 12 [C04B, H01G]
2012/0067,999 TAPE REEL AND INFORMATION RECORDING MEDIUM Sep 19, 11 Mar 22, 12 [G11B, B65H]
2012/0069,615 BRIDGELESS POWER FACTOR CORRECTION CONVERTER Sep 07, 11 Mar 22, 12 [H02M]
2011/0317,328 CERAMIC ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING THE SAME Jun 23, 11 Dec 29, 11 [H01C, H01G]
2011/0280,116 OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING METHOD May 11, 11 Nov 17, 11 [G11B]
2011/0262,632 Magnetoresistive Effect Element, Thin-Film Magnetic Head, Method for Manufacturing Magnetoresistive Effect Element, and Method for Manufacturing Thin-Film Magnetic Head Mar 07, 11 Oct 27, 11 [B05D]
2011/0235,491 OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING METHOD Mar 24, 11 Sep 29, 11 [G11B, B32B]

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