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Tdk Corporation
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Tdk Corporation patents


Recent patent applications related to Tdk Corporation. Tdk Corporation is listed as an Agent/Assignee. Note: Tdk Corporation may have other listings under different names/spellings. We're not affiliated with Tdk Corporation, we're just tracking patents.

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Switching power supply apparatus

A switching power supply apparatus is provided which reduces the time of application of an input voltage to a choke to suppress a peak current flowing through switch elements when a primary or secondary voltage is 0 V (or a voltage near 0 V). A DAB converter or switching power... Tdk Corporation

Sigma-delta modulator arrangement, method and control calibrating a continuous-time sigma-delta modulator

A sigma-delta modulator arrangement includes a continuous-time sigma-delta modulator with at least one modulator stage, a digital integrator and a given number of switches. The switches are arranged and configured to convert the continuous-time sigma-delta modulator into a first order incremental sigma-delta analog-to-digital converter comprising the digital integrator. At least... Tdk Corporation

Charge pump assembly

A charge pump assembly allowing MEMS microphones being temperature-compensated in a large temperature range and corresponding microphones are provided. An assembly comprises a charge pump and a bias circuit electrically connected to the charge pump. A bias voltage provided by the bias circuit has a temperature dependence.... Tdk Corporation

Alumina substrate

An alumina substrate on which an AlN layer is formed and that causes less warping, and a substrate material strong enough to withstand normal handling when an AlN crystal is grown upon it, and prevents cracking and fracturing of a grown crystal when stress is applied during growing or cooling.... Tdk Corporation

R-t-b based rare earth permanent magnet

An R-T-B based rare earth permanent magnet is expressed by formula: (R11-x(Y1-y-z Cey Laz)x)aTbBcMd in which, R1 is one or more kinds of rare earth element not including Y, Ce and La. “T” is one or more kinds of transition metal, and includes Fe or Fe and Co as an... Tdk Corporation

R-t-b based rare earth permanent magnet

An R-T-B based rare earth permanent magnet is expressed by a compositional formula: (R11-x(Y1-y-z Cey Laz)x)aTbBcMd in which R1 is one or more kinds of rare earth element not including Y, Ce and La, “T” is one or more kinds of transition metal, and includes Fe or Fe and Co... Tdk Corporation

Dielectric composition and electronic component

A dielectric composition is provided. The dielectric composition includes a tungsten bronze type complex oxide expressed by a chemical formula (K1-xNax)Sr2Nb5O15 as a main component, x satisfying 0≦x≦0.50, wherein the dielectric composition includes a secondary phase of at least one or more selected from: MgO.SiO2; BaO.2MgO.2SiO2; and 2MgO.B2O3; or the... Tdk Corporation

Magnetoresistive effect device

A magnetoresistive effect device includes a first magnetoresistive effect element, a second magnetoresistive effect element, a first port, a second port, a signal line, and a direct-current input terminal. The first port, the first magnetoresistive effect element, and the second port are connected in series to each other in this... Tdk Corporation

Magnetoresistance effect element

A magnetoresistance effect element has a first ferromagnetic metal layer, a second ferromagnetic metal layer, and a tunnel barrier layer that is sandwiched between the first and second ferromagnetic metal layers, and a tunnel barrier layer that is sandwiched between the first and second ferromagnetic metal layers, the tunnel barrier... Tdk Corporation

Mems microphone with improved sensitivity

A MEMS microphone with an improved sensitivity, e.g. a reduced temperature dependence of the sensitivity, is provided. The microphone comprises a MEMS capacitor, a charging circuit and a bias circuit. The bias circuit comprises a closed loop control circuit and creates a bias voltage with a temperature dependence.... Tdk Corporation

Lens drive device

An X-axis movable object holding portion to hold an X-axis movable object to be movable in an X-axis direction is provided at a position facing an X-axis actuator with an optical axis between the X-axis movable object holding portion and the X-axis actuator in a base member. A Y-axis movable... Tdk Corporation

Lens drive device

A gravity center obtained by combining a gravity center of an X-axis movable object, a gravity center of a Y-axis movable object, and a gravity center of a lens carrier is located in a triangle, as vertexes, having a contact portion in which an X-axis friction engagement portion comes into... Tdk Corporation

Lens drive device

An X-axis movable object holding portion to hold an X-axis movable object is provided at a position facing an X-axis actuator in a base member. A Y-axis movable object holding portion to hold a Y-axis movable object is provided at a position facing a Y-axis actuator in the X-axis movable... Tdk Corporation

Lens drive device

In a connection position of a first suspension wire and an electric wiring line provided in a Y-axis movable object and a connection position of a second suspension wire and an electric wiring line provided in an X-axis movable object, height positions along a direction of an optical axis of... Tdk Corporation

Electronic circuit package

Disclosed herein is an electronic circuit package includes a substrate having a power supply pattern, a first electronic component mounted on a first region of a front surface of the substrate, a mold resin that covers the front surface of the substrate so as to embed the first electronic component... Tdk Corporation

Spin current magnetization reversal element, element assembly, and producing spin current magnetization reversal element

This spin current magnetization reversal element includes a magnetoresistance effect element having a first ferromagnetic metal layer having a fixed magnetization direction, a second ferromagnetic metal layer having a variable magnetization direction, and a non-magnetic layer sandwiched between the first ferromagnetic metal layer and the second ferromagnetic metal layer, and... Tdk Corporation

Integrated circuit arrangement for a microphone, microphone adjusting one or more circuit parameters of the microphone system

An integrated circuit arrangement for a microphone, a microphone system and a method for adjusting circuit parameters of the microphone are disclosed. In an embodiment an integrated circuit includes an amplifier circuit with a first switchable network circuit for adjusting an amplifier current of the amplifier circuit, the first switchable... Tdk Corporation

Angle sensor and angle sensor system

An angle sensor includes a detection signal generation unit for generating detection signals, an angle detection unit for generating a detected angle value on the basis of the detection signals, and a condition determination apparatus. The condition determination apparatus includes a determination value generation unit for generating a determination value... Tdk Corporation

Transparent conductor and touch panel

Provided is a transparent conductor including a transparent resin substrate, a first metal oxide layer, a metal layer containing a silver alloy, and a second metal oxide layer laminated in the order presented, wherein the second metal oxide layer contains zinc oxide, indium oxide, titanium oxide, and tin oxide.... Tdk Corporation

R-t-b based sintered magnet

An R-T-B based sintered magnet containing a first heavy rare earth element, in which R includes Nd, T includes Co and Fe, the first heavy rare earth element includes Tb or Dy, the R-T-B based sintered magnet has a region in which a concentration of the first heavy rare earth... Tdk Corporation

High permeability magnetic sheet

A magnetic sheet comprises, by vol. %, Fe—Si—Al alloy flat powder: 36% or more. The Fe—Si—Al alloy flat powder comprises, by wt %, 9.3%≦Si≦9.7%, 5.7%≦Al≦6.1%, and remaining Fe. The Fe—Si—Al alloy flat powder has: an aspect ratio in a range of 20 or more and 50 or less; a 50%... Tdk Corporation

Soft magnetic metal dust core and reactor having thereof

A soft magnetic metal dust core including a soft magnetic metal powder and a nonmagnetic material, in which when observing a field of view including “n”, a natural number of 50 or more, particles of the soft magnetic metal powder on a grinded smooth cross section of the dust core,... Tdk Corporation

Magnetoresistance effect element

A magnetoresistance effect element has a first ferromagnetic metal layer, a second ferromagnetic metal layer, and a tunnel barrier layer that is sandwiched between the first and second ferromagnetic metal layers, and the tunnel barrier layer has a spinel structure represented by a composition formula of AIn2Ox (0<x≦4), and an... Tdk Corporation

Electronic component embedded substrate

An electronic component embedded substrate 1 includes a substrate 10 having a wiring layer 11 and an insulating layer 12; an electronic component 20 built in the substrate 10, and having a pair of electrode layers 21A and 21B, and a dielectric layer 22; and a stress relieving layer 30... Tdk Corporation

Module comprising a mems component mounted without subjecting same to stress

A model is specified in which a MEMS component is connected to the carrier in a stress-free fashion over a large temperature range. For this purpose, a mechanical connection comprises a compensation structure which bridges a horizontal offset of mounting points by means of a horizontal shoulder and the thermal... Tdk Corporation

Sensor unit

This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the... Tdk Corporation

Composite magnetic sealing material

Disclosed herein is a composite magnetic sealing material includes a resin material and a filler blended in the resin material in a blended ratio of 30 vol. % or more to 85 vol. % or less. The filler includes a magnetic filler containing Fe and 32 wt. % or more... Tdk Corporation

Soft magnetic metal powder and dust core

A soft magnetic metal powder includes a plurality of soft magnetic metal particles composed of an Fe—Co based alloy. The Fe—Co based alloy includes 0.50 mass % or more and 8.00 mass % or less of Co and a remaining part composed of Fe and an inevitable impurity. A soft... Tdk Corporation

Lens drive unit

A lens drive unit that prevents an actuator from being inclined is provided. In the lens drive unit, when a lens frame is displaced in a direction orthogonal to a direction in which the actuator extends and contracts with respect to a base member by, for example, impact from an... Tdk Corporation

Lens drive unit

A lens drive unit that offers enhanced reliability in connection between an actuator electrode and an electric wire is provided. In the lens drive unit, an actuator has a weight housed in an holding portion of a base member and is thereby fixed in the base member. Electrodes on a... Tdk Corporation

Coil device

At the position where the lead art of the wire is projecting out from the outer face of the core part and spaced apart from the side face, the bonding part between the lead part and the terminal electrode is formed. The terminal electrode comprises the terminal body installed along... Tdk Corporation

Piezoelectric element

In a piezoelectric element, internal stress generated in an inactive portion at the time of sintering when a piezoelectric element is fabricated or stress applied from the outside to the inactive portion is absorbed by a recess of a lower surface of a first through hole conductor and a recess... Tdk Corporation

Method of manufacturing perpendicular magnetic recording head

This method of manufacturing a perpendicular magnetic recording head includes: forming a water-soluble resin film on a base; forming a first resist pattern having an opening on the water-soluble resin film; selectively dissolving the water-soluble resin film exposed at a bottom of the opening with a developer to expose a... Tdk Corporation

Head assembly and magnetic disk device

To control the resonance generated in the head assembly and improve property on the head location controlling. A head assembly includes: a slider having a head element; a slider supporting plate for holding the slider; a load beam for holding the slider supporting plate; a support projection which is arranged... Tdk Corporation

Impedance circuit for a charge pump arrangement and charge pump arrangement

An impedance circuit for a charge pump arrangement and a charge pump arrangement are disclosed. In an embodiment, the impedance circuit includes a first current mirror circuit with a first bias serving as a current input terminal, a first output serving as a current output terminal and a first input... Tdk Corporation

12/28/17 / #20170370747

Angle sensor and angle sensor system

An angle sensor includes a first to a fourth detection unit and an angle detection unit. Each of the first to the fourth detection unit generates two detection signals. The first to the fourth detection unit are arranged in a positional relationship that establishes predetermined phase relationships among the detection... Tdk Corporation

12/28/17 / #20170372827

Coil device

A coil device includes a core member, a bobbin, a coil portion, an outer case, and a potting resin. The core member extends in a longitudinal direction. The bobbin is provided with a longitudinal concave portion communicating with a side surface opening portion open to outside and housing the core... Tdk Corporation

12/28/17 / #20170372829

Multilayer coil component

A multilayer coil component includes an element body including soft magnetic metal powders and a coil disposed in the element body. The coil includes a plurality of internal conductors electrically connected to each other. The plurality of internal conductors are separated from each other in a first direction and are... Tdk Corporation

12/28/17 / #20170372840

Dielectric composition and electronic component

A dielectric composition is provided. The dielectric composition includes: a main component made of: a first complex oxide expressed by a chemical formula {K(Ba1-xSrx)2Nb5O15}; and a second complex oxide expressed by a chemical formula that differs the chemical formula of the first complex oxide. The second complex oxide is a... Tdk Corporation

12/28/17 / #20170373009

Electronic component

An electronic component includes a first electronic component and a second electronic component that is stacked on the first electronic component. A second electrode layer of the first electronic component includes a plurality of divided electrode layers, and a pair of electrodes of the second electronic component are electrically connected... Tdk Corporation

12/21/17 / #20170364039

Sensor

A sensor having a chamber with a sensor element arranged therein comprises a first volume of air. The sensor has a tubular air supply to the chamber, the air supply comprising a second volume of air, and penetration of water through the air supply to the sensor element being prevented... Tdk Corporation

12/21/17 / #20170365385

Soft magnetic metal powder, soft magnetic metal fired body, and coil type electronic device

A soft magnetic metal powder includes a plurality of soft magnetic metal grains composed of an Fe—Si based alloy. A content of P in the Fe—Si based alloy is 110 to 650 ppm provided that a total content of Fe and Si is 100 mass %. A soft magnetic metal... Tdk Corporation

12/21/17 / #20170365399

Coil device

A coil device 10 comprising, the core body 20 having a coil core part 22 and a core bottom face 24c, and a coil part forming spiral conductive pathway around the coil core part 22. A metal electrode 60 is formed at the core bottom face 24c, and the wire... Tdk Corporation

12/21/17 / #20170365902

Dielectric filter

A dielectric filter includes: a resonator body formed of dielectric material; surrounding dielectric portion present around the resonator body and formed of dielectric material having a relative permittivity lower than the dielectric material used to form the resonator body; and an input/output conductor portion formed of a conductor and configured... Tdk Corporation

12/14/17 / #20170356765

Condition determination apparatus and method, physical quantity information generation apparatus, and angle sensor

An angle sensor includes a detection signal generation unit for generating a plurality of detection signals, an angle detection unit for generating a detected angle value by performing an operation using the plural of detection signals, and a condition determination apparatus. The condition determination apparatus includes a determination value generation... Tdk Corporation

12/14/17 / #20170358391

Wire, manufacturing method therefor, and coil component

Disclosed herein is a wire that includes: a core wire made of a conductor; an insulating film covering an outer periphery of the core wire; a catalyst adsorption film covering an outer periphery of the insulating film, the catalyst adsorption film including a catalyst serving as a reaction start point... Tdk Corporation

12/14/17 / #20170358733

Piezoelectric device

A piezoelectric device includes a body provided with a first region and a second region lined along a first direction. The first region deformably extends/contracts along the first direction. The second region deformably curves in such a manner that one or the other side in a second direction intersecting the... Tdk Corporation

12/07/17 / #20170350726

Angle sensor, correction use therewith, and angle sensor system

An angle sensor includes a detection signal generation unit for generating detection signals, and an angle detection unit for generating a detected angle value on the basis of the detection signals. The angle detection unit includes a signal conversion unit for performing a conversion operation, and an angle operation unit... Tdk Corporation

12/07/17 / #20170352474

Coil device and manufacturing the same

A coil device includes a bobbin, a first winding part, and a second winding part. A partition portion is formed on an outer peripheral surface of the bobbin. The first winding part is wound around the outer peripheral surface at one side of the partition portion. The second winding part... Tdk Corporation

11/30/17 / #20170345449

Magnetoresistive effect device

A magnetoresistive effect device includes a magnetoresistive effect element first and second ports, a signal line, an inductor, and a direct current input terminal. The first port, the magnetoresistive effect element, and the second port are connected in series in this order via the signal line. The inductor is connected... Tdk Corporation

11/30/17 / #20170345553

Multilayer coil component

A multilayer coil component includes an element body, a coil disposed in the element body, and an external electrode disposed in the element body and electrically connected to the coil. The element body includes a principal surface that is a mounting surface, and an end surface positioned adjacent to the... Tdk Corporation

11/30/17 / #20170345560

Circuit board and electronic circuit module using the same

Disclosed herein is an electronic circuit module that includes a circuit board and a common mode filter mounted on the circuit board. The common mode filter includes first and second terminal electrodes constituting a first pair of terminal electrodes and third and fourth electrodes constituting a second pair of terminal... Tdk Corporation

11/30/17 / #20170345571

Multilayer ceramic capacitor

A plurality of dielectric layers containing one of CaZrO3 and SrZrO3 and a plurality of internal electrodes containing Ni are alternately disposed in a second direction. The plurality of internal electrodes includes a plurality of first internal electrodes and a plurality of second internal electrodes. Each of first connecting portions... Tdk Corporation

11/30/17 / #20170345576

Thin-film capacitor

In a thin-film capacitor, a first extraction electrode provided along a side surface of a first groove portion is in contact with a first electrode layer and is not in contact with a second electrode layer. Also, a second extraction electrode provided along a side surface of a second groove... Tdk Corporation

11/30/17 / #20170345718

Stacked film, electronic device substrate, electronic device, and fabricating stacked film

A stacked film is a stacked film including an oxide film, and a metal film provided on the oxide film, in which the oxide film includes a ZrO2 film of which a main surface is a (001) plane, the metal film includes a Pt film or a Pd film that... Tdk Corporation

11/30/17 / #20170345992

Stacked film, electronic device substrate, electronic device, and fabricating stacked film

A stacked film includes an oxide film including a ZrO2 film, a metal oxide film provided on the oxide film, and a predetermined metal film provided on the metal oxide film and having a single orientation, and the metal oxide film is a PtO film or a PdO film. In... Tdk Corporation

11/30/17 / #20170346432

Motor

A motor includes a magnet and a coil. α2=[{(Br2−Br1)/Br1}/(T2−T1)]×100≧−0.10 and α3=[{(Br3−Br1)/Br1}/(T3−T1)]×100≦−0.12 are satisfied. In the magnet, Br1 (mT) is a residual magnetic flux density at T1 (° C.), Br2 (mT) is a residual magnetic flux density at T2 (° C.), and Br3 (mT) is a residual magnetic flux density at... Tdk Corporation

11/23/17 / #20170336229

Condition determination apparatus and method, physical quantity information generation apparatus, and angle sensor

An angle sensor includes a detection signal generation unit, an angle detection unit for generating a detected angle value by performing an operation using detection signals, and a condition determination apparatus. The condition determination apparatus includes an initial determination value generation unit, correction processing unit and determination unit. The initial... Tdk Corporation

11/23/17 / #20170337940

Manufacturing a magnetic head including a main pole and a write shield

A manufacturing method for a magnetic head forms a leading shield having a top surface. The top surface of the leading shield includes first and second portions. The second portion is located farther from a medium facing surface than is the first portion, and recessed from the first portion. A... Tdk Corporation

11/23/17 / #20170338547

Antenna device and portable wireless device using the same

Disclosed herein is an antenna device that includes a planar coil pattern having first, second, third and fourth sections, the first and second sections being opposite to each other, and the third and fourth sections being opposite to each other, and a metal layer having at least one aperture. A... Tdk Corporation

11/16/17 / #20170329099

Lens drive device

A lens drive device includes a lens holder capable of holding at least one lens and a frame arranged around the holder and holding the holder relatively movable along a light axis of the lens. At least three stopper convex portions protruding toward the frame are formed on an outer... Tdk Corporation

11/16/17 / #20170330669

Coil component

Disclosed herein is a coil component that includes an element body made of a first magnetic material, a coil conductor embedded in the element body, and first and second magnetic films made of a second magnetic material having higher permeability than that of the first magnetic material. The element body... Tdk Corporation

11/16/17 / #20170330673

Multilayer coil component

A multilayer coil component includes an element body made of a ferrite sintered body and a coil. The coil is configured with a plurality of internal conductors juxtaposed in the element body and electrically connected to one another. An average crystal grain size in a surface region of the element... Tdk Corporation

11/16/17 / #20170331191

Antenna device and mobile wireless device provided with the same

Disclosed herein is an antenna device including a first metal layer having first and second areas, a coil pattern having first and second terminals, a first wiring pattern connected between the first area of the first metal layer and the first terminal of the coil pattern, and a second wiring... Tdk Corporation

11/02/17 / #20170314975

Correction angle sensor, and angle sensor

A correction apparatus for an angle sensor includes a correction unit for performing first correction processing on a first detection signal and performing second correction processing on a second detection signal. The first correction processing is processing for combining the first detection signal and a first correction value to generate... Tdk Corporation

Patent Packs
11/02/17 / #20170316798

Thin film magnetic head, head gimbals assembly, head arm assembly, and magnetic disk unit

This thin film magnetic head includes a magnetic pole including an end surface exposed on an air bearing surface, and a contact detection section including a magnetic material layer provided near the air bearing surface, and a magnetic-domain stabilizing structure stabilizing a magnetic domain structure of the magnetic material layer.... Tdk Corporation

11/02/17 / #20170316867

Coil component and power supply circuit unit

Provided is a coil component including a coil portion that has two ring-shaped planar coil portions individually including a coil-wound portion and an insulative resin layer which covers the periphery of the coil-wound portion within the same layer as the coil-wound portion, an insulative resin layer being interposed between the... Tdk Corporation

11/02/17 / #20170316868

Coil component and power supply circuit unit

Provided is a coil component including a coil portion that has at least one layer of ring-shaped planar coil portion including a coil-wound portion and an insulative resin layer which covers the periphery of the coil-wound portion within the same layer as the coil-wound portion, and an insulative resin layer... Tdk Corporation

11/02/17 / #20170318675

Through wiring substrate

A through wiring substrate comprises a substrate having a pair of principal surfaces and a through hole penetrating between the pair of principal surfaces, the pair of principal surfaces and an inner surface of the through hole being electrically insulative; a through electrode provided on the inner surface of the... Tdk Corporation

10/26/17 / #20170309299

Microwave assisted magnetic recording head with spin torque oscillator corner angle relationship, head gimbal assembly, and magnetic recording device

A microwave assisted magnetic head includes a main magnetic pole; a trailing shield; and a spin torque oscillator provided between the main magnetic pole and the trailing shield. The spin torque oscillator has a first end surface configuring a part of an air bearing surface, a second end surface facing... Tdk Corporation

10/26/17 / #20170309301

Multilayer element including base multilayer body, magnetic sensor and microwave assisted magnetic head

A base multilayer body is made by laminating a seed layer and a buffer layer in respective order. The seed layer is an alloy layer containing tantalum (Ta) and at least one type of other metal, and having an amorphous structure or a microcrystal structure. The buffer layer is an... Tdk Corporation

10/26/17 / #20170309389

Electronic component

An electronic component includes: an element body in which a plurality of insulator layers are stacked; a coil in which a plurality of inner conductors installed in the element body are electrically connected to each other; and an outer electrode that is disposed on an outer surface of the element... Tdk Corporation

10/26/17 / #20170309392

Coil device

A coil device includes an inner core having a winding core and a pair of flanges, a wire, an outer core arranged outside the inner core, a first terminal with a first wirebound having a first wirebound bottom arranged axially on a core end surface of the outer core and... Tdk Corporation

10/26/17 / #20170309576

Electronic circuit package

Disclosed herein is an electronic circuit package includes: a substrate having a power supply pattern; an electronic component mounted on a surface of the substrate; a mold resin covering the surface of the substrate so as to embed therein the electronic component; a magnetic film formed of a composite magnetic... Tdk Corporation

10/26/17 / #20170311448

Electronic circuit package

Disclosed herein is an electronic circuit package includes: a substrate having a power supply pattern; an electronic component mounted on a surface of the substrate; a magnetic mold resin formed of a composite magnetic material including a thermosetting resin material and a magnetic filler, the magnetic mold resin covering the... Tdk Corporation

10/19/17 / #20170301455

Differential mode filter

Disclosed herein is a differential mode filter including a core including a winding core part, a first wire wound around the winding core part in a first winding direction, and a second wire wound around the winding core part in a second winding direction opposite to the first winding direction.... Tdk Corporation

10/19/17 / #20170301628

Electronic circuit package

Disclosed herein is an electronic circuit package includes: a substrate having a power supply pattern; an electronic component mounted on a surface of the substrate; a mold resin covering the surface of the substrate so as to embed therein the electronic component; a laminated structure of a magnetic film and... Tdk Corporation

10/12/17 / #20170294387

Electronic circuit package

Disclosed herein is an electronic circuit package includes a substrate having a power supply pattern, a first electronic component mounted on a first region of a front surface of the substrate, a mold resin that covers the front surface of the substrate so as to embed the first electronic component... Tdk Corporation

10/12/17 / #20170295643

Electronic circuit module and manufacturing the same

Disclosed herein is an electronic circuit module that includes a substrate having a power supply pattern, an electronic component mounted on a front surface of the substrate, a molding resin that covers the front surface of the substrate so as to embed the electronic component therein, a metal shield covering... Tdk Corporation

10/05/17 / #20170283328

Dielectric ceramic composition and multilayer ceramic capacitor

when a content of the first sub component is R mol, a content of the second sub component is M mol, and a content of the third sub component is N mol with respect to 100 mol of said main component, then 1.0≦R(M+N)≦2.4 is satisfied.... Tdk Corporation

Patent Packs
10/05/17 / #20170284827

Position detecting device and structure for using position detecting device

A position detecting device includes a first bias magnet and a second bias magnet and a detecting element configured to detect a direction of a magnetic field generated by the first magnet and the second magnet. The first magnet and the second magnet are disposed with magnetic poles thereof having... Tdk Corporation

10/05/17 / #20170287513

Thermal assisted magnetic recording head with plasmon generator

A thermal assisted magnetic recording head that performs magnetic recording while locally heating a magnetic recording medium includes: a plasmon generator that generates a surface plasmon and that generates near-field light from the surface plasmon on a front end surface positioned on an air bearing surface opposing the magnetic recording... Tdk Corporation

10/05/17 / #20170287604

Composite magnetic sealing material

Disclosed herein is a composite magnetic sealing material includes a resin material and a filler blended in the resin material in a blended ratio of 30 vol. % or more to 85 vol. % or less. The filler includes a magnetic filler containing Fe and 32 wt. % or more... Tdk Corporation

10/05/17 / #20170287622

Thin film inductor

A thin film inductor 1 includes: a coil part that is formed of at least one coil conductor layer and has terminal electrodes provided at both ends thereof; a first insulating layer that covers the coil part; and a second insulating layer that covers the first insulating layer and has... Tdk Corporation

10/05/17 / #20170287635

Dielectric ceramic composition and multilayer ceramic capacitor

said dielectric ceramic composition is a complete solid solution particle wherein the rare earth element is solid dissolved to entire dielectric particle, or a core-shell particle having high ratio of the diffusion phase, and comprises the dielectric particle having 5 to 20 atom % of the average concentration of the... Tdk Corporation

10/05/17 / #20170287636

Dielectric ceramic composition and multilayer ceramic capacitor

A dielectric ceramic composition has good characteristics even under the high electric field intensity, and particularly good IR characteristic and the high temperature accelerated lifetime. The dielectric ceramic composition has a main component having a perovskite type compound shown by a compositional formula (Ba1-x-ySrxCay)m(Ti1-zZrz)O3, a first sub component having oxides... Tdk Corporation

10/05/17 / #20170287645

Electronic component

An electronic device includes a plurality of chip components and an external terminal. The chip components are provided with a terminal electrode formed on an end surface of a ceramic element body. The external terminal is electrically connected with the terminal electrodes to support the plurality of chip components adjacently... Tdk Corporation

10/05/17 / #20170287848

Electronic circuit package using composite magnetic sealing material

Disclosed herein is an electronic circuit package includes a substrate, an electronic component mounted on a surface of the substrate, and a magnetic mold resin covering the surface of the substrate so as to embed therein the electronic component. The magnetic mold resin includes a resin material and a filler... Tdk Corporation

10/05/17 / #20170288127

Piezoelectric ceramic sputtering target, lead-free piezoelectric thin film and piezoelectric thin film element using the same

A piezoelectric ceramic sputtering target containing a perovskite type oxide represented by chemical formula (I) of ABO3 as a main component, wherein the component A of the chemical formula (I) contains at least K (potassium) and/or Na (sodium), the component B of the chemical formula (I) contains at least Nb... Tdk Corporation

10/05/17 / #20170288128

Piezoelectric ceramic sputtering target, lead-free piezoelectric thin film and piezoelectric thin film element using the same

A piezoelectric ceramic sputtering target containing a perovskite type oxide represented by chemical formula (I) of ABO3 as a main component, wherein the component A of the chemical formula (I) contains at least K (potassium) and/or Na (sodium), the component B of the chemical formula (I) contains at least one... Tdk Corporation

10/05/17 / #20170288132

Magnetoresistive element and magnetic sensor

A magnetoresistive element includes a channel layer, a first ferromagnetic layer, a second ferromagnetic layer, and a reference electrode. The first ferromagnetic layer, the second ferromagnetic layer, and the reference electrode are apart from each other and are electrically connected to each other through the channel layer. The average resistivity... Tdk Corporation

10/05/17 / #20170288133

Magnetoresistive element and magnetic sensor

A magnetoresistive element includes a channel layer, a first ferromagnetic layer, a second ferromagnetic layer, and a reference electrode. The first ferromagnetic layer, the second ferromagnetic layer, and the reference electrode are apart from each other and are electrically connected to each other through the channel layer. The effective cross-sectional... Tdk Corporation

10/05/17 / #20170288214

Positive electrode active material for lithium ion secondary battery, and lithium ion secondary battery positive electrode and lithium ion secondary battery using the same

A positive electrode active material for a lithium ion secondary battery contains: a first compound represented by chemical formula Lix(NiyMa1-y)O2 (0.95≦x≦1.05, 0.70≦y≦0.95, where Ma is at least one element selected from Co, Mn, V, Ti, Fe, Zr, Nb, Mo, Al, and W); and a second compound represented by chemical formula... Tdk Corporation

10/05/17 / #20170288464

Power transmission device

A power transmission device, which is used for a contactless power transmission to a movable body moving on a travelling surface in a power transmission direction parallel to the travelling surface, including a power transmission coil and a shielding plate, wherein, the power transmission coil is installed so that a... Tdk Corporation

10/05/17 / #20170288465

Power feeding coil unit, wireless power feeding device and wireless power transmission device

A power feeding coil unit for wireless power transmission including a base portion with bottom having an opening on an upper end, a magnetic body having a plurality of magnetic plates disposed on a bottom surface of the base portion, a power feeding coil formed by winding a conductive wire... Tdk Corporation

10/05/17 / #20170288469

Coil unit, wireless power feeding device, wireless power receiving device and wireless power transmission device

A coil unit provided on a ground side, including a coil, at least one sensor for detecting an object existing above or around the coil unit, a housing for accommodating the coil and the at least one sensor, wherein, the housing is provided with a dividing plate and at least... Tdk Corporation

10/05/17 / #20170288626

Common mode filter

Disclosed herein is a common mode filter that includes first and second terminal electrodes provided on the first flange part, third and fourth terminal electrodes provided on the second flange part, a first wire wound around the winding core part and having one end connected to the first terminal electrode... Tdk Corporation

10/05/17 / #20170290152

Electronic component mounting board

An electronic component mounting board includes: a circuit board having a wiring layer; a pocket part provided on a main surface of one side of the circuit board; a passive component housed in the pocket part; an active component arranged above the passive component and the main surface of the... Tdk Corporation

10/05/17 / #20170290165

Thin film component sheet, board with built-in electronic component, and manufacturing the thin film component sheet

A thin film component sheet includes: a conducting interconnection layer formed of a conductor; an insulating layer that is laminated on the conducting interconnection layer and is formed of an insulating material; and a plurality of thin film electronic components, each of which has a pair of first and second... Tdk Corporation

09/28/17 / #20170275174

Dielectric film and electronic component

A dielectric film containing an alkaline earth metal oxide having a NaCl type crystal structure as a main component, wherein the dielectric film has a (111)-oriented columnar structure in a direction perpendicular to the surface of the dielectric film, and in a Cu—Kα X-ray diffraction chart of the dielectric film,... Tdk Corporation

09/28/17 / #20170276657

Gas detection sheet and electrochemical element with gas detection sheet

(wherein, pz=pyrazine, 0.95≦x<1.05, M=Pd or Pt, 0≦y<0.15).... Tdk Corporation

09/28/17 / #20170276712

Radiated emission measuring device

A radiated emission measuring device includes: an electric field measuring device and an arithmetic processing unit. The arithmetic processing unit performs: a first arithmetic process of creating at least one of an electric field distribution and an electric field strength distribution of the plurality of measurement points measured by the... Tdk Corporation

09/28/17 / #20170278530

Plasmon generator with separating layer for thermal assisted magnetic recording head

A plasmon generator generates surface plasmon and generates near-field light from the surface plasmon at a distal end surface situated on an air bearing surface facing a magnetic recording medium. The plasmon generator has a first portion including the distal end surface, a second portion situated away from the air... Tdk Corporation

09/28/17 / #20170278602

R-t-b based permanent magnet

An R-T-B based permanent magnet includes R-T-B based compounds as main-phase crystal grains. R is a rare earth element. T is iron group element(s) essentially including Fe or Fe and Co. B is boron. A two-grain boundary is contained between the two adjacent main-phase crystal grains. An average grain size... Tdk Corporation

09/28/17 / #20170278609

Rare earth magnet and motor

A rare earth magnet capable of reducing an eddy current loss by virtue of a low-cost, simple configuration, when mounted in a motor, is to be provided, where the rare earth magnet comprising: a magnet body comprising a rare earth element and iron; and a resistive layer formed on at... Tdk Corporation

09/28/17 / #20170278632

Dielectric thin film and electronic component

A dielectric thin film containing MgO as a main component, wherein the dielectric thin film is composed of a columnar structure group containing at least one columnar structure A constructed by single crystal and at least one columnar structure B constructed by polycrystal, respectively, and in the cross section of... Tdk Corporation

09/28/17 / #20170278804

Electronic circuit package

Disclosed herein is an electronic circuit package includes: a substrate having a power supply pattern; an electronic component mounted on a surface of the substrate; a mold resin covering the surface of the substrate so as to embed therein the electronic component; a magnetic film formed so as to contact... Tdk Corporation

09/28/17 / #20170279039

Magnetoresistive effect element

A magnetoresistive effect element includes a first ferromagnetic layer, a second ferromagnetic layer, and a nonmagnetic metal layer interposed between the first ferromagnetic layer and the second ferromagnetic layer. The first ferromagnetic layer and the second ferromagnetic layer include a Heusler alloy consisting of a CoMnSi alloy. A ratio x... Tdk Corporation

09/28/17 / #20170279168

Gas detector and electrochemical element with gas detector

(wherein, pz=pyrazine, 0.95≦5≦1.05 , M=Pd or pt, 0≦y≦0.15).... Tdk Corporation

09/28/17 / #20170279190

Antenna device and portable wireless device using the same

Disclosed herein is an antenna device that includes a metal layer, a substrate, and a solenoid coil wound around the substrate. At least a part of a spiral coil is formed by a conductor pattern constituting the solenoid coil, and at least a part of the spiral coil is covered... Tdk Corporation

Social Network Patent Pack
09/28/17 / #20170279310

Wireless power transmission system

A wireless power transmission system includes a power feeding device and a power receiving device, wherein the power feeding device includes: a power feeding coil which receives an electric power to generate an AC magnetic field; an inverter for supplying an alternating-current power under a predetermined driving frequency to the... Tdk Corporation

09/28/17 / #20170279311

Power feeding device and wireless power transmission device

A power feeding device which wirelessly transmits power towards a power receiving device equipped with a power receiving coil device, comprising: a magnetic structure having two magnetic bodies; and a power feeding coil device which receives power from a power supply and generates an alternating magnetic field, the mutual main... Tdk Corporation








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