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 1537 5
 
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 414 2
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 398 107
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 370 3
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 175 25
 
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 170 5
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 135 43
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 103 65
 
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 96 34
 
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 89 14
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0103,835 R-T-B BASED SINTERED MAGNET Oct 04, 16 Apr 13, 17 [H01F, C22C]
2017/0103,836 R-T-B BASED SINTERED MAGNET Oct 04, 16 Apr 13, 17 [H01F, C22C]
2017/0103,842 MULTILAYER COIL COMPONENT Sep 26, 16 Apr 13, 17 [H01F]
2017/0103,845 MULTILAYER COIL COMPONENT Sep 26, 16 Apr 13, 17 [H01F]
2017/0103,852 ELECTRONIC COMPONENT Oct 05, 16 Apr 13, 17 [H01G]
2017/0096,371 DIELECTRIC COMPOSITION AND ELECTRONIC COMPONENT Sep 28, 16 Apr 06, 17 [C04B, H01G]
2017/0098,505 ELECTRONIC COMPONENT Sep 26, 16 Apr 06, 17 [H01G]
2017/0098,506 ELECTRONIC COMPONENT Sep 26, 16 Apr 06, 17 [H01G]
2017/0098,756 PIEZOELECTRIC FILM, PIEZOELECTRIC FILM ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD-DISK DRIVE AND INK JET PRINTER HEAD Sep 29, 16 Apr 06, 17 [H01L]
2017/0099,535 ELECTRIC DEVICE, IN PARTICULAR A MICROPHONE HAVING RE-ADJUSTABLE SENSITIVITY, AND ADJUSTMENT METHOD Feb 18, 15 Apr 06, 17 [H04R, B81C, B81B]
2017/0092,414 MULTILAYER COMMON MODE FILTER Sep 13, 16 Mar 30, 17 [H01F]
2017/0092,423 ELECTRONIC COMPONENT Sep 20, 16 Mar 30, 17 [H01G]
2017/0092,633 SEMICONDUCTOR PACKAGE AND MANUFACTURING METHOD THEREFOR Sep 21, 16 Mar 30, 17 [H01L]
2017/0094,402 MICROPHONE HAVING INCREASED REAR VOLUME, AND METHOD FOR PRODUCTION THEREOF Feb 18, 15 Mar 30, 17 [H04R, B81C, B81B]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9620151 Plasmon generator with (111) oriented tip portion for thermal assisted magnetic recording head May 12, 16 Apr 11, 17 [G11B]
9620156 Magnetic head device Mar 16, 16 Apr 11, 17 [G11B]
9620268 R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing same Oct 11, 12 Apr 11, 17 [H01F, C22C, B22D]
9620291 Thin film capacitor Jul 14, 15 Apr 11, 17 [H01G]
9620300 Electrochemical device Oct 15, 14 Apr 11, 17 [H01G]
9620777 Positive electrode and lithium ion secondary battery using thereof Sep 30, 14 Apr 11, 17 [H01M]
9620840 High-frequency transmission line, antenna and electronic circuit board Jun 25, 15 Apr 11, 17 [H01Q, B82Y, H01P]
9613737 R-T-B based sintered magnet and production method for same, and rotary machine Oct 11, 12 Apr 04, 17 [H01F, C22C, B22D]
9613753 Electronic device comprising chip component and external terminal Nov 14, 14 Apr 04, 17 [H01G, H05K]
9614463 Piezoelectric device, piezoelectric actuator, hard disk drive, and inkjet printer apparatus Feb 10, 14 Apr 04, 17 [H02N, H01L, B06B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9224706 Terminal structure, and semiconductor element and module substrate comprising the same Withdrawn Aug 06, 13 Dec 29, 15 [H01L]
2015/0370,125 LIQUID CRYSTAL LENS ABAN Jun 04, 15 Dec 24, 15 [G02F]
2015/0333,330 LITHIUM ION SECONDARY BATTERY ABAN May 08, 15 Nov 19, 15 [H01M]
2015/0333,362 LITHIUM ION SECONDARY BATTERY ABAN May 08, 15 Nov 19, 15 [H01M]
2015/0249,205 MAGNETIC ELEMENT, AND MAGNETIC HIGH FREQUENCY ELEMENT HAVING THE MAGNETIC ELEMENT ABAN Feb 24, 15 Sep 03, 15 [H01L]
2015/0200,055 LAMINATE-TYPE CERAMIC ELECTRONIC COMPONENTS ABAN Jan 08, 15 Jul 16, 15 [H01G]
2015/0157,278 ELECTRONIC DEVICE, METHOD, AND STORAGE MEDIUM ABAN Dec 09, 14 Jun 11, 15 [G06T, A61B, G08C]
2015/0136,216 COMPOUND SEMICONDUCTOR SOLAR CELL ABAN Feb 19, 13 May 21, 15 [H01L]
2015/0109,063 MAGNETORESISTIVE EFFECT OSCILLATOR ABAN Oct 16, 14 Apr 23, 15 [H03B]
2015/0096,617 COMPOUND SEMICONDUCTOR SOLAR BATTERY ABAN Feb 28, 13 Apr 09, 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]
2015/0006,202 BIOLOGICAL DATA MANAGEMENT METHOD, BIOLOGICAL DATA MANAGEMENT SYSTEM, AND CENTER APPARATUS ABAN Feb 28, 14 Jan 01, 15 [G06F]
2014/0370,290 IRON NITRIDE BASED MAGNETIC POWDER AND MAGNET USING THE SAME ABAN Jun 10, 14 Dec 18, 14 [H01F, C01B]
2014/0339,458 PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC DEVICE CONTAINING THE SAME ABAN May 14, 13 Nov 20, 14 [H01L]
2014/0311,289 R-T-B BASED SINTERED MAGNET ABAN Apr 22, 14 Oct 23, 14 [H01F]
2014/0296,681 ELECTROCARDIOGRAPH, METHOD FOR MEASURING ELECTROCARDIOGRAM, AND COMPUTER PROGRAM PRODUCT ABAN Mar 04, 14 Oct 02, 14 [A61B]
2014/0233,361 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME ABAN Feb 21, 13 Aug 21, 14 [G11B]
2014/0211,515 DC-DC CONVERTER AND POWER SUPPLY DEVICE HAVING DC-DC CONVERTER ABAN Jan 23, 14 Jul 31, 14 [H02M]
2014/0203,901 REACTOR AND ELECTRICAL DEVICE ABAN Aug 27, 12 Jul 24, 14 [H01F]

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