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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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 new patent  Cooling arrangement for a power supply module

A power supply module for facilitating an increased flow of cooling air comprises a chassis in which circuitry of the power supply module is housed, and a front panel associated with the chassis. The power supply module is configured with one or more airflow openings which facilitate a flow of cooling air into or out of a chassis interior and which are ensured of remaining unblocked, wherein one of the chassis and the front panel is formed with one or more inclined surfaces to define at least a part of a corresponding passageway through which air crossing a portion of the front panel is flowable. ... Tdk Corporation

 new patent  Non-reciprocal circuit device and communication apparatus using the same

Disclosed herein is a non-reciprocal circuit device that includes a mounting surface substantially parallel to a stacking direction, first and second side surfaces substantially vertical to the mounting surface and substantially parallel to the stacking direction, a first permanent magnet, a magnetic rotator stacked in the stacking direction with respect to the first permanent magnet, the magnetic rotator having a central conductor and at least first and second ports derived from the central conductor, a first external terminal provided on the first side surface and connected to the first port, and a second external terminal provided on the second side surface and connected to the second port.. . ... Tdk Corporation

 new patent  Composite magnetic sealing material and electronic circuit package using the same

Disclosed herein is a composite magnetic sealing material includes a resin material and a filler blended in the resin material in a blend ratio of 50 vol. % or more and 85 vol. ... Tdk Corporation

 new patent  Inductance element for magnetic sensor and current sensor including the same

Disclosed herein is an inductance element that includes a base body, a saturable magnetic thin-plate core provided on the base body, and a coil conductor wound around the saturable magnetic thin-plate core. The saturable magnetic thin-plate core includes a first section linearly extending in a first direction and a second section having a meander-shaped, and the coil conductor is wound around the first section of the saturable magnetic thin-plate core.. ... Tdk Corporation

 new patent  Electronic component

An electronic component includes a body and a pair of terminal electrodes. The body has a pair of end faces opposing each other in a first direction, a pair of main faces opposing each other in a second direction, and a pair of side faces opposing each other in a third direction. ... Tdk Corporation

 new patent  Optical member driving mechanism

An optical member driving mechanism is provided, including a movable module, a first driving module, and a position detecting module. The movable module includes an optical member holder and a housing. ... Tdk Corporation

 new patent  Lens driving mechanism

A lens driving mechanism is provided, including a bottom plate, a housing, a movable portion, and a biasing assembly. The housing is connected to and disposed on the bottom plate. ... Tdk Corporation

 new patent  Driving mechanism

A driving mechanism for supporting an optical member is provided, including a fixed module, a movable module, a driving module disposed therebetween, and an elastic member. The driving module can drive the movable module to rotate around a first rotation axis relative to the fixed module. ... Tdk Corporation

 new patent  Lens driving mechanism

A lens driving mechanism is provided, including a bottom plate, a housing, a movable portion, and a biasing assembly. The housing is disposed on and connected to the bottom plate. ... Tdk Corporation

 new patent  Lens driving mechanism

A lens driving mechanism is provided, configured to drive an optical lens, including a bottom plate, a movable portion, an elastic member, and a biasing assembly. The movable portion is disposed on the bottom plate and has a base and a holder, wherein the holder is configured to hold the optical lens, and the holder is movably connected to the base. ... Tdk Corporation

 new patent  Optical element driving mechanism

An optical element driving mechanism is provided, including a first component, a second component, an optical element driving assembly, and a flexible plastic structure. The second component is disposed corresponding to the first component. ... Tdk Corporation

Thin-film capacitor and electronic component embedded substrate

A thin-film capacitor includes a pair of electrode layers composed of a first electrode layer configured to store positive charges and a second electrode layer configured to store negative charges; and a dielectric layer sandwiched between the pair of electrode layers along a lamination direction. The first electrode layer includes a first main electrode layer in contact with the dielectric layer. ... Tdk Corporation

Ic package

An ic package having a semiconductor body that includes a monolithically integrated circuit and at least two metallic contact surfaces. The integrated circuit being connected to the two electrical contact surfaces via printed conductors, and being disposed on a carrier substrate and connected to the carrier substrate in a force-fitting manner. ... Tdk Corporation

Coil device

Provided is coil device 1 including: core 10 including winding core part 12 and flange parts 14a, 14a provided on both edges of winding core part 12, and coil part 30 including wires 31, 32 wound on winding core part 12. Electrode film 40, having wire connecting part 41 where wire edges 31a, 31b, 32a, 32b are connected, and formed on a surface of the flange parts 14a, 14a. ... Tdk Corporation

05/10/18 / #20180129064

Lens drive device

A lens drive device includes a movable portion, a fixed portion, and four suspension wires. The movable portion has a lens holder holding a lens and a magnet arranged at a position that does not overlap with the lens when viewed from a light axis direction. ... Tdk Corporation

05/03/18 / #20180123215

Directional coupler

The element body includes a main line; a first sub line and a second sub line; a pair of ground layers that are disposed to face each other at positions at which the main line, the first sub line, and the second sub line are interposed in a stacking direction of the plurality of insulator layers; a phase control circuit that is connected between the first sub line and the second sub line and is disposed at a position at which one ground layer is interposed between the first sub line and the second sub line in the stacking direction; and a connection line that connects the first sub line and the second sub line to the phase control circuit. The connection line is surrounded by at least one of one ground layer and a conductor having the same potential as the ground layer when viewed in the stacking direction.. ... Tdk Corporation

05/03/18 / #20180123214

Directional coupler

The auxiliary ground layer is a part in which the main line and the sub line do not overlap in the lamination direction and is disposed to face a part in which a distance from the first ground layer and a distance from the second ground layer are different in the lamination direction. When a longer distance is set as a first distance a and a shorter distance is set as a second distance b between a distance between the non-overlapping part and the first ground layer and a distance between the non-overlapping part and the second ground layer, and a third distance between the non-overlapping part and the auxiliary ground layer is set as c, the relationship of a>c≥b is satisfied.. ... Tdk Corporation

05/03/18 / #20180123202

Balun

A balun includes an unbalanced port, a first balanced port, a second balanced port, a main line, a subline, a capacitor, and an impedance matching section. The subline is configured to be electromagnetically coupled to the main line. ... Tdk Corporation

05/03/18 / #20180123028

Spin-orbit torque magnetization rotational element

A spin-orbit torque magnetization rotational element includes: a ferromagnetic metal layer, a magnetization direction of which is configured to be changed; a spin-orbit torque wiring bonded to the ferromagnetic metal layer; and an interfacial distortion supply layer bonded to a surface of the spin-orbit torque wiring on a side opposite to the ferromagnetic metal layer.. . ... Tdk Corporation

05/03/18 / #20180123026

Electric-current-generated magnetic field assist type spin-current-induced magnetization reversal element, magnetoresistance effect element, magnetic memory and high-frequency filter

The present invention has the purpose of providing an electric-current-generated magnetic field assist type spin-current-induced magnetization reversal element that utilizes magnetization reversal based on pure spin current. The electric-current-generated magnetic field assist type spin-current-induced magnetization reversal element of the present invention includes a first ferromagnetic metal layer with a varying magnetization direction; spin-orbit torque wiring that adjoins the first ferromagnetic metal layer and that extends in a second direction in a plane orthogonal to a first direction normal to the first ferromagnetic metal layer; and electric-current-generated magnetic field assist wiring that is arranged so as to be electrically insulated from the first ferromagnetic metal layer by an insulating layer and in which flows an electric current i0 for forming a magnetic field h0 that assists magnetization reversal of the first ferromagnetic metal layer.. ... Tdk Corporation

05/03/18 / #20180123024

Spin-orbit torque type magnetoresistance effect element, and method for producing spin-orbit torque type magnetoresistance effect element

A spin-orbit torque type magnetoresistance effect element including a magnetoresistance effect element having a first ferromagnetic metal layer with a fixed magnetization direction, a second ferromagnetic metal layer with a varying magnetization direction, and a non-magnetic layer sandwiched between the first ferromagnetic metal layer and the second ferromagnetic metal layer; and spin-orbit torque wiring that extends in a first direction intersecting with a stacking direction of the magnetoresistance effect element and that is joined to the second ferromagnetic metal layer; wherein the magnetization of the second ferromagnetic metal layer is oriented in the stacking direction of the magnetoresistance effect element; and the second ferromagnetic metal layer has shape anisotropy, such that a length along the first direction is greater than a length along a second direction orthogonal to the first direction and to the stacking direction.. . ... Tdk Corporation

05/03/18 / #20180123022

Magnetic memory

A magnetic memory including a plurality of magnetoresistance effect elements that hold information, each including a first ferromagnetic metal layer with a fixed magnetization direction, a second ferromagnetic metal layer with a varying magnetization direction, and a non-magnetic layer sandwiched between the first and second ferromagnetic metal layers; a plurality of first control elements that control reading of the information, wherein each of the plurality of first ferromagnetic metal layers is connected to a first control element; a plurality of spin-orbit torque wiring lines that extend in a second direction intersecting with a first direction which is a stacking direction of the magnetoresistance effect elements, wherein each of the second ferromagnetic metal layers is joined to one spin-orbit torque wiring line; a plurality of second control elements that control electric current flowing through the spin-orbit torque wiring lines.. . ... Tdk Corporation

05/03/18 / #20180123021

Spin-orbit torque type magnetization reversal element, magnetic memory, and high frequency magnetic device

A spin-orbit torque type magnetization reversal element including a ferromagnetic metal layer with a varying magnetization direction; and spin-orbit torque wiring that extends in a first direction intersecting with a stacking direction of the ferromagnetic metal layer and that is joined to the ferromagnetic metal layer; wherein when viewed from the first direction, the spin-orbit torque wiring is asymmetrical in a second direction that is orthogonal to the first direction and the stacking direction, with respect to an axis that passes through a center, in the second direction, of the ferromagnetic metal layer.. . ... Tdk Corporation

05/03/18 / #20180122543

Soft magnetic alloy and magnetic device

A soft magnetic alloy including a composition having a formula of ((fe(1−(α+β))x1αx2β)(1−(a+b+d+e))mabbcrdcue)1−fcf. X1 is one or more elements selected from a group of co and ni. ... Tdk Corporation

05/03/18 / #20180122542

Soft magnetic alloy and magnetic device

A soft magnetic alloy including a composition having a formula of ((fe(1-(α+β))x1αx2β)(1-(a+b+c+d+e))mabbpccrdcue)1-fcf. X1 is one or more elements selected from a group of co and ni. ... Tdk Corporation

05/03/18 / #20180122540

Soft magnetic alloy and magnetic device

A soft magnetic alloy including a composition having a formula of ((fe(1-(α+β))x1αx2β)(1-(a+b+c+d+e))mabbpccrdcue)1-fcf. X1 is one or more elements selected from a group of co and ni. ... Tdk Corporation

05/03/18 / #20180120587

Lens driving apparatus with closed-loop anti-shake structure

The present invention discloses a lens driving apparatus with a closed-loop anti-shake structure, comprising: a lens holder comprising a coil; a frame comprising a plurality of magnets and receiving the lens holder; a driving circuit board disposed under the frame; a plurality of first set of elastic bodies configured such that the lens holder remains movable in a direction of a first axis with respect to the frame; a plurality of second set of elastic bodies configured such that the frame remains movable in a direction perpendicular to the first axis with respect to the driving circuit board; and a first optical module and a first optical reference respectively disposed at the driving circuit board and the lens holder, the first optical module sensing a relative movement of the first optical reference so as to sense a movement of the lens holder in the direction of the first axis.. . ... Tdk Corporation

05/03/18 / #20180120584

Driving mechanism and camera module

A driving mechanism is provided, including a fixed portion, a movable portion, and a driving module disposed therebetween. The driving module includes a first electromagnetic driving assembly and a second electromagnetic driving assembly. ... Tdk Corporation

04/19/18 / #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 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. %

Tdk Corporation

. . ... Tdk Corporation

04/19/18 / #20180108834

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, the tunnel barrier layer has a spinel structure in which cations are arranged in a disordered manner, and the tunnel barrier layer is expressed by a composition formula of (m1-xznx)((t1)2-y(t2)y)o4 wherein m represents a non-magnetic divalent cation other than zn, each of t1 and t2 represents a non-magnetic trivalent cation, and x and y represent a composition ratio in a region where composition ratios combined as follows ((1) to (5)) are vertexes, and the vertexes are connected by straight lines: (1) x=0.2, y=0.1, (2) x=0.8, y=0.1, (3) x=0.8, y=1.7, (4) x=0.6, y=1.7, and (5) x=0.2, y=0.7.. . ... Tdk Corporation

04/19/18 / #20180108463

Rare earth magnet

A rare earth magnet includes main phase grains having an r2t14b type crystal structure. The main phase grains include c. ... Tdk Corporation

04/19/18 / #20180106980

Lens driving module

An optical member driving module is provided, including a moving mechanism, a base, a suspension wire, and an electromagnetic driving mechanism for driving the moving mechanism to move relative to the base. The moving mechanism includes an optical member holder, and the base has a first surface, a second surface, and an opening. ... Tdk Corporation

04/19/18 / #20180106874

Inductance element for magnetic sensor and current sensor including the same

Disclosed herein is an inductance element for a magnetic sensor. The inductance element includes a first core comprising a first soft magnetic material and having first and second connecting surfaces, a second core comprising a second soft magnetic material different from the first soft magnetic material and having third and fourth connecting surfaces facing the first and second connecting surfaces, respectively, and a coil wound around the first core between the first and second connecting surfaces, wherein the first core is larger in magnetic field strength at which magnetic saturation occurs than the second core, and wherein the second core is higher in permeability than the first core and has at least partially a meander shape.. ... Tdk Corporation

04/19/18 / #20180105674

Resin composition, resin sheet, resin cured product, and resin substrate

A resin composition includes an epoxy compound, a first triphenylbenzene compound, and a second triphenylbenzene compound. A ratio m (mol %) expressed by m (mol %)=(m1/m2)×100 is from 0.2 mol % to 16.3 mol %, where m1 is the number of moles (mol) of an alkoxy group contained in the second triphenylbenzene compound, and m2 is sum of the number of moles (mol) of a hydroxyl group contained in the first triphenylbenzene compound, the number of moles (mol) of the hydroxyl group contained in the second triphenylbenzene compound, and the number of moles (mol) of the alkoxy group contained in the second triphenylbenzene compound.. ... Tdk Corporation

04/12/18 / #20180102674

Wireless power transmission device

Disclosed herein is a wireless power transmission device includes a power transmitting transformer coupled between a power transmitting circuit and a power receiving circuit, and a signal transmitting transformer coupled between a signal generating circuit provided at the power receiving circuit side and a control circuit provided at the power transmitting circuit side. The frequency of an ac signal transmitted by the signal transmitting transformer is equal to or more than ten times the frequency of an ac voltage transmitted by the power transmitting transformer. ... Tdk Corporation

04/12/18 / #20180102475

Variable-frequency magnetoresistive effect element and oscillator, detector, and filter using the same

A variable-frequency magnetoresistive effect element includes a magnetoresistive effect element, a magnetic-field applying mechanism that applies a magnetic field to the magnetoresistive effect element, an electric-field applying mechanism that applies an electric field to the magnetoresistive effect element, and a control terminal connected to the electric-field applying mechanism and used for applying a voltage that varies in at least one of magnitude and polarity to the electric-field applying mechanism. The magnetoresistive effect element contains an antiferromagnetic material or ferrimagnetic material having a magnetoelectric effect. ... Tdk Corporation

04/12/18 / #20180102220

Thin-film capacitor

A thin-film capacitor includes a capacitor section in which electrode layers and dielectric layers are alternately stacked and which includes a hole portion that extends to the electrode layer. In a cross-section which is perpendicular to a stacking surface of the capacitor section and which passes through the hole portion, a side surface of the hole portion extends along a reference line extending in a direction intersecting the stacking surface, the dielectric layer extends up to the reference line toward the hole portion, and a gap is formed between the side surface of the pair electrode layer and the reference line.. ... Tdk Corporation

04/12/18 / #20180102219

Thin-film capacitor

A thin-film capacitor including a stacked body having a lower electrode layer, a plurality of dielectric layers stacked on the lower electrode layer, one or more internal electrode layers interposed between the dielectric layers, and an upper electrode layer that is stacked on the opposite side of the lower electrode layer with the dielectric layers and the internal electrode layers interposed between, and a cover layer that covers the stacked body. The stacked body includes opening portions that have the lower electrode layer, opens upward in a stacking direction, and has a side surface formed to include an inclined surface. ... Tdk Corporation

04/12/18 / #20180102218

Thin-film capacitor

A thin-film capacitor includes electrode layers stacked in a stacking direction; dielectric layers stacked between the electrode layers; an opening portion that includes a side surface penetrating at least a part of the electrode layers and at least a part of the dielectric layers in the stacking direction from a top side and a bottom surface exposing one of the electrode layers; and a wiring portion disposed in the opening portion to be separated from the side surface of the opening portion, and electrically connected to the electrode layer exposed from the bottom surface of the opening portion. The dielectric layer that is stacked immediately on the electrode layer exposed from the bottom surface of the opening portion among the dielectric layers includes an extension portion extending in the opening portion from the side surface of the opening portion to the wiring portion side.. ... Tdk Corporation

04/12/18 / #20180102213

Rotary type magnetic coupling device

Disclosed herein is a rotary type magnetic coupling device including first and second coils magnetically coupled to each other used for a rotator. Each of the first and second coils is a loop-shaped having an opening surrounding a rotary axis of the rotator. ... Tdk Corporation

04/12/18 / #20180102211

Rotary type magnetic coupling device

Disclosed herein is a rotary type magnetic coupling device used for a rotator. The rotary type magnetic coupling device includes first and second coils magnetically coupled to each other, and third and fourth coils magnetically coupled to each other. ... Tdk Corporation

04/12/18 / #20180100987

Optical driving mechanism

The disclosure provides an optical driving mechanism, including a frame body, a holding member, a plate coil and a magnet. The holding member is movably disposed in the frame body and configured to hold an optical element. ... Tdk Corporation

04/12/18 / #20180100984

Optical system

An optical system includes a base, a first lens driving module, and a second lens driving module. The first lens driving module includes a first lens holder, a first magnet, and a first coil. ... Tdk Corporation

04/12/18 / #20180100983

Multiple lenses driving mechanism

A multiple lenses driving mechanism is provided, including a frame, a first lens holder, a second lens holder, a first lens driving assembly, a second lens driving assembly and a stopper. The first and second lens holders are disposed in the frame, arranged along a longitudinal axis for respectively holding a first lens and a second lens. ... Tdk Corporation

04/05/18 / #20180096789

Method of manufacturing laminated coil component

A method of manufacturing a laminated coil component is a method of manufacturing a laminated coil component provided with a laminate obtained by laminating a coil conductor forming a spiral coil and an insulator layer. The method of manufacturing a laminated coil component includes a step of providing a conductor pattern configured to become a coil conductor on a green sheet configured to become an insulator layer, and a step of laminating a plurality of green sheets provided with the conductor pattern. ... Tdk Corporation

04/05/18 / #20180096781

Coil device

A coil device, in which an air-core coil of a cylindrical shape is buried in a core including a magnetic powder and a resin, showing, cv value of the below described cross sectional areas, sa1 to sa5, 0.55 or less, when an outer diameter of the air-core coil is “a1”, an inner diameter of the same is “a2”, and a distance between a surface of the core perpendicular to a direction of winding axis and an end of the air-core coil in the direction of winding axis is “h”, is provided. The coil device is superior in dc superimposing characteristic while suppressing the magnetic saturation.. ... Tdk Corporation

04/05/18 / #20180096768

Ferrite composition and electronic device

A ferrite composition includes a main component and an accessory component. The main component includes 18 to 30 mol % of iron oxide in terms of fe2o3, 4 to 14 mol % of copper oxide in terms of cuo, 0 to 6 mol % of zinc oxide in terms of zno, and a remaining part of nickel oxide. ... Tdk Corporation

04/05/18 / #20180096766

Soft magnetic alloy

A soft magnetic alloy includes a main component of fe. The soft magnetic alloy includes a fe composition network phase where regions whose fe content is larger than an average composition of the soft magnetic alloy are linked. ... Tdk Corporation

04/05/18 / #20180096765

Soft magnetic alloy

A soft magnetic alloy includes a main component of fe. The soft magnetic alloy includes a fe composition network phase where regions whose fe content is larger than an average composition of the soft magnetic alloy are linked. ... Tdk Corporation

04/05/18 / #20180095238

Camera module

A camera device is provided, including a first lens unit, a second lens unit, a frame, a base, a plurality of suspension wires, and an electromagnetic driving mechanism. The frame surrounds the first lens unit and the second lens unit. ... Tdk Corporation

04/05/18 / #20180095146

Angle sensor and angle sensor system

An angle sensor includes first and second detection units and an angle detection unit. Each of the first and second detection units generates two detection signals. ... Tdk Corporation

04/05/18 / #20180094950

Magnetoresistive element and method of manufacturing such, and position detection device

A magnetoresistive element is provided with a plurality of magnetoresistive laminated bodies arranged in an array and a plurality of lead electrodes that electrically connect the plurality of magnetoresistive laminated bodies in series. A first lead electrode electrically connected to a first surface in the lamination direction of a first magnetoresistive laminated body among the plurality of magnetoresistive laminated bodies and a second lead electrode electrically connected to a first surface in the lamination direction of a second magnetoresistive laminated body adjacent in the series direction are electrically connected without a magnetoresistive laminated body being interposed in between.. ... Tdk Corporation

03/29/18 / #20180091795

Camera module

A camera module is provided. The camera module includes a number of camera assembles. ... Tdk Corporation

03/29/18 / #20180091794

Camera module

A camera module is provided. The camera module includes a number of camera assembles. ... Tdk Corporation

03/29/18 / #20180090995

Wireless power receiving device and wireless power transmission device

A wireless power receiving device, for wirelessly receiving electric power from a wireless power feeding device, includes: a power receiving side resonant circuit having a power receiving coil wirelessly receiving power from a power feeding side and a power receiving side resonant capacitor; a rectifier circuit in which the power received by the power receiving coil is rectified to be output to a load; a power receiving side voltage detecting portion for detecting the output voltage of the rectifier circuit; a short circuit having a switching element connected between an output portion of the power receiving side resonant circuit and an output portion of the rectifier circuit, and a rectifying element inserted between the output portion of the power receiving side resonant circuit and the switching element; and a controlling circuit which operates the switching element when a value of the output voltage exceeds a preset reference voltage value.. . ... Tdk Corporation

03/29/18 / #20180090677

Magnetoresistance effect element

A magnetoresistance effect element is capable of realizing a high magnetoresistance (mr) ratio. The magnetoresistance effect element includes a laminate in which: an underlayer; a first ferromagnetic metal layer; a tunnel barrier layer; and a second ferromagnetic metal layer are laminated in that order. ... Tdk Corporation

03/29/18 / #20180090676

Magnetoresistance effect element

A magnetoresistance effect element configured to produce magnetoresistance (mr) ratio higher than that of tunnel magneto resistance (tmr) element using tunnel barrier in the related art under a high bias voltage is provided. A magnetoresistance effect element which includes a laminate in which: an underlayer; a first ferromagnetic metal layer; tunnel barrier layer; and second ferromagnetic metal layer are laminated in this order, wherein the underlayer is made of vn, tan, or mixed crystals thereof, and the tunnel barrier layer is made of compound which has a spinel structure in which the arrangement of cations is disordered and is represented by the following composition formula (1) is provided: (1) axb2oy, where a represents divalent cations of two or more types of non-magnetic element, b represents an aluminum ion, x represents number which satisfies 0<x ≦2, and y represents a number which satisfies 0<y ≦4.. ... Tdk Corporation

03/29/18 / #20180090673

Magnetoresistance effect element

Provided is a magnetoresistance effect element that that generates a high mr ratio at a lower ra than a tmr element using a material of a conventional tunnel barrier layer or mgal2o4. The magnetoresistance effect element includes a laminate in which an underlayer, a first ferromagnetic metal layer, a tunnel harrier layer, and a second ferromagnetic metal layer are laminated in that order, wherein the underlayer is made of tin, nbn, tan, zrn or mixed crystals thereof, and the tunnel barrier layer is made of a compound that has a spinel structure and expressed by composition formula (1) below: (1) axin2oy, where a is the non-magnetic divalent cation and represents cations of one or more elements selected from the group consisting of magnesium and zinc, x represents a number satisfying 0<x≦2, and y represents a number satisfying 0<y≦4.. ... Tdk Corporation

03/29/18 / #20180090672

Magnetoresistance effect device

Provided is a magnetoresistance effect device on which a magnetoresistance effect element having an excellent withstand voltage characteristic is mounted. The magnetoresistance effect device includes: an interlayer insulating layer; a through electrode that passes through the interlayer insulating layer and is exposed on at least one surface of the interlayer insulating layer; and a magnetoresistance effect element that is laminated on the through electrode. ... Tdk Corporation

03/29/18 / #20180090670

Magnetoresistance effect element

A magnetoresistance effect element has favorable symmetry of an mr ratio even if the sign of a bias voltage is different, which is capable of reversing magnetization to a current, which has a high mr ratio. A magnetoresistance effect element includes a laminate in which an underlayer, a first ferromagnetic metal layer, a tunnel barrier layer, and a second ferromagnetic metal layer are laminated in that order, wherein the underlayer is made of one or more selected from a group containing of tin, vn, nbn, and tan, or mixed crystals thereof, and wherein the tunnel barrier layer is made of a compound having a spinel structure and represented by the following composition formula (1). ... Tdk Corporation

03/29/18 / #20180090667

Piezoelectric element

A piezoelectric element includes first and second electrodes, a first piezoelectric body layer, and a plurality of first through-hole conductors. The first and second electrodes oppose each other. ... Tdk Corporation

03/29/18 / #20180090665

Piezoelectric element

A piezoelectric element includes a piezoelectric body layer, a first electrode, a second electrode, a third electrode, and a first through-hole conductor. The piezoelectric body layer has rectangular first and second principal surfaces opposing each other, and includes a piezoelectric material. ... Tdk Corporation

03/29/18 / #20180090259

Coil device

A coil device including: a core, including a magnetic powder and a resin; an air-core coil; a lead, led from the air-core coil; and a terminal, in which at least the entire air-core coil is buried inside the core, an outer shape of the core is a shape where at least one corner part is removed from an approximate rectangular parallelepiped shape, the removed corner includes an entire side of the approximate rectangular parallelepiped shape in the removed corner, approximately parallel to a direction of a winding axis of the air-coil, and a volume of the removed part is 2% or more of a volume of the approximate rectangular parallelepiped shape, is provided. The coil device can reduce a used amount of the magnetic body while maintaining the magnetic characteristic.. ... Tdk Corporation

03/29/18 / #20180087927

Angle sensor and angle sensor system

An angle sensor includes a plurality of composite magnetic field information generation units and an angle computing unit. The plurality of composite magnetic field information generation units detect, at a plurality of detection positions, a composite magnetic field of a magnetic field to be detected and a noise magnetic field other than the magnetic field to be detected, and thereby generate a plurality of pieces of composite magnetic field information including information on the direction of the composite magnetic field. ... Tdk Corporation

03/22/18 / #20180083499

Sintered magnet

A sintered magnet has an arc shape cross-section defined by an outer arc, an inner arc, and a pair of end sides connecting an end point of the outer arc and an end point of the inner arc, and a range of an central angle α of the inner arc is 145°≦α≦180°. The inventors have newly found that a large magnetic flux can be obtained according to the sintered magnet and the characteristics of the motor can be improved, using such a sintered magnet.. ... Tdk Corporation

03/22/18 / #20180083186

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 in which cations are disordered, and contains a divalent cation of a non-magnetic element, a trivalent cation of a non-magnetic element, oxygen, and one of nitrogen and fluorine.. . ... Tdk Corporation

03/22/18 / #20180082793

Electronic component

An element body includes first and second end surfaces opposing each other in a first direction, first and second side surfaces opposing each other in a second direction, and first and second principal surfaces opposing each other in a third direction. The length of the element body in the second direction is shorter than that of the element body in the first direction, and the length of the element body in the third direction is shorter than that of the element body in the second direction. ... Tdk Corporation

03/22/18 / #20180082792

Electronic component

An element body includes first and second end surfaces opposing each other in a first direction, first and second side surfaces opposing each other in a second direction, and first and second principal surfaces opposing each other in a third direction. The length of the element body in the third direction is shorter than that of the element body in the first direction and is shorter than that of the element body in the second direction. ... Tdk Corporation

03/22/18 / #20180082772

Rare earth magnet

A rare earth magnet includes main phase grains having an r2t14b type crystal structure. The main phase grains include ga. ... Tdk Corporation

03/15/18 / #20180076713

Switch drive circuit and switching power supply device using same

A switch drive circuit drives a full-bridge output stage connected to a transformer to alternately switch between a first cycle in which a current in a first direction is supplied to the transformer and a second cycle in which a current in a second direction is supplied to the transformer. The switch drive circuit includes a mode in which a dead time of the output stage is set in accordance with a magnitude of a current flown in one of the first and second cycles, the dead time becoming an operation changing factor in the other cycle. ... Tdk Corporation

03/15/18 / #20180076380

Piezoelectric drive device

A piezoelectric drive device including: laminated piezoelectric element including a first end face and a second end face opposed to the first end face; a weight member attached to the first end face; and a shaft attached to the second end face, in which a moving member, engaged to the shaft movable in an axial direction, is moved by activating the laminated piezoelectric element. Inside the laminated piezoelectric element, a first internal electrode and a second internal electrode, respectively having a plane surface approximately perpendicular to the first end face and the second end face, are laminated in y axial direction, approximately perpendicular to the first internal electrode and the second internal electrode with a piezoelectric layer in-between. ... Tdk Corporation

03/15/18 / #20180076379

Dielectric device

A dielectric device has a first electrode film having a non-oriented or amorphous structure, a dielectric film provided on the first electrode film and having a preferentially oriented structure, and a second electrode film provided on the dielectric film and having a non-oriented or amorphous structure.. . ... Tdk Corporation

03/15/18 / #20180075973

Electronic device

An electronic device including: a first chip component, having approximately rectangular parallelepiped shape; a second chip component, having approximately rectangular parallelepiped shape; and an external terminal electrically connected to a first terminal electrode and a second terminal electrode. The external terminal includes an electrode connecting component, connected to the first terminal electrode and the second terminal electrode. ... Tdk Corporation

03/15/18 / #20180075972

Electronic component

An electronic component includes an element body of a rectangular parallelepiped shape, an external electrode, and an insulating film. The element body includes a first principal surface as a mounting surface, and a first side surface adjacent to the first principal surface. ... Tdk Corporation

03/15/18 / #20180074415

Optical element driving mechanism

An optical element driving mechanism is disposed in an electronic device and configured to hold a plurality of optical elements. The optical element driving mechanism includes a plate, a base, a first holder, a second holder, and a biasing assembly. ... Tdk Corporation

03/08/18 / #20180070451

Coil component and circuit board having the same

Disclosed herein is a coil component that includes a drum-shaped core having a first flange part provided at one end of a winding core part, first to fourth terminal electrodes formed on the first flange part so as to be arranged in this order in a second direction, and first to fourth wires wound around the winding core part. One ends of the first to fourth wires are connected to different ones of the first to fourth terminal electrodes. ... Tdk Corporation

03/08/18 / #20180068772

Magnet, magnet stack, and motor

In a magnet, an insulating layer is fixed to an upper surface of the magnet provided with the insulating layer, but is not fixed to a lower surface of the magnet above the insulating layer. Therefore, even when the magnet expands or contracts due to a temperature change, stress is less likely to occur at an interface between the insulating layer provided on the upper surface of the magnet and the magnet above the insulating layer.. ... Tdk Corporation

03/08/18 / #20180068771

Dust core

A dust core including a metal magnetic powder and a resin, in which the metal magnetic powder shows a particle diameter of more than 0 μm and 200 μm or less, a number percentage of 5.0% or more of metal magnetic particles among the metal magnetic particles composing the metal magnetic powder are at least partially surface-coated with an inorganic compound including an alkaline earth metal, in a coating part coating the metal magnetic particles, an amount of the alkaline earth metal is 10.0 mass % or more, when a total amount of a metal element included in the coating part is 100 mass %, is provide. The dust core is superior in a corrosion-resistance.. ... Tdk Corporation

03/08/18 / #20180068681

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, the tunnel barrier layer is expressed by a chemical formula of ab2ox, and has a spinel structure in which cations are arranged in a disordered manner, a represents a divalent cation that is either mg or zn, and b represents a trivalent cation that includes a plurality of elements selected from the group consisting of al, ga, and in.. . ... Tdk Corporation

03/08/18 / #20180068680

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 aga2ox (0<x≦4), and an a-site is a non-magnetic divalent cation which is one or more selected from a group consisting of magnesium, zinc and cadmium.. . ... Tdk Corporation

03/01/18 / #20180062616

Vibrating device

A piezoelectric element body has a first principal surface and a second principal surface. A pair of first electrodes is disposed on the first principal surface. ... Tdk Corporation

03/01/18 / #20180062283

Terminal block

There is provided a terminal block to which load lines can be attached in multiple directions and which includes a terminal cover that makes terminal portions difficult for fingers to touch and is less likely to damage the load lines. The terminal block includes: a conductive plate including a first-direction connection portion that extends in a first direction and is capable of being connected with at least one wire, and a second-direction connection portion that is in electrical conduction with the first-direction connection portion, extends in a second direction different from the first direction, and is capable of being connected with at least one wire.. ... Tdk Corporation

03/01/18 / #20180062237

Directional coupler and wireless communication device using the same

Disclosed herein is a directional coupler that includes a main line configured to transmit a high-frequency signal, a sub line electromagnetically coupled to the main line, and a ground pattern positioned at least partially between the main line and the sub line in a plan view. The sub line includes a low pass filter having an inductance pattern and a capacitor. ... Tdk Corporation

03/01/18 / #20180061572

Dielectric composition and multilayer electronic device

A dielectric composition contains barium titanate, an oxide of yttrium, and an oxide of magnesium. 0.70≦α/β≦1.10 is satisfied, where a content of the oxide of yttrium is α mol part in terms of y2o3, and a content of the oxide of magnesium is β mol part in terms of mgo.. ... Tdk Corporation

03/01/18 / #20180059356

Optical system

An optical system is provided, including a base, a first lens driving module and a second lens driving module. The first lens driving module includes a first holder, a first magnet, and a first coil corresponding to the first magnet, wherein the first holder is used to hold a first optical element and has a first side. ... Tdk Corporation

03/01/18 / #20180057408

Ferrite composition, ferrite sintered body, electronic device, and chip coil

A ferrite composition includes a main component and an accessory component. The main component includes 43.0 to 51.0 mol % of iron oxide in terms of fe2o3, 5.0 to 15.0 mol % of copper oxide in terms of cuo, 1.0 to 24.9 mol % of zinc oxide in terms of zno, and a remaining part of nickel oxide. ... Tdk Corporation

02/22/18 / #20180054008

Contacting device

A contacting device having a carrier and at least one contacting unit, wherein the carrier has a bottom side and a top side, the top side of the carrier having a plurality of mutually insulated conductive tracks, the contacting unit having a plurality of contact elements that at least partially are formed of an electrically conductive material and in each case are mutually electrically insulated, each contact element along a longitudinal axis being composed of at least one fixing section and a contacting portion adjoining the fixing section, each fixing section being supported on the top side of the carrier, having a first contact surface and being positively and conductively connected to one of the conductive tracks, each contacting portion having a distance to the top side varying between zero and a maximum distance.. . ... Tdk Corporation

02/15/18 / #20180048965

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. ... Tdk Corporation

02/15/18 / #20180048327

Sigma-delta modulator arrangement, method and control apparatus for 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. ... Tdk Corporation

02/15/18 / #20180048240

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 supply apparatus performs phase control to change at least either a first conduction width or a second conduction width of pairs of diagonally-arranged switch elements, constituting a primary full bridge circuit. ... Tdk Corporation

02/08/18 / #20180041841

Mems microphone with improved sensitivity

A mems microphone with an improved sensitivity, e.g. A reduced temperature dependence of the sensitivity, is provided. ... Tdk Corporation

02/08/18 / #20180040815

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 layer is expressed by a composition formula of ab2ox (0<x≦4), and has a spinel structure in which cations are arranged in a disordered manner, the tunnel barrier layer has a lattice-matched portion and a lattice-mismatched portion, a is a divalent cation of plural non-magnetic elements, b is an aluminum ion, and in the composition formula, the number of the divalent cation is smaller than half the number of the aluminum ion.. . ... Tdk Corporation

02/08/18 / #20180040666

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 order via the signal line. ... Tdk Corporation

02/08/18 / #20180040424

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 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≦0.40, wherein the dielectric composition includes: mgo; bao; b2o3; sio2; and p2o5 as a first accessory component in a total content of 2.5 mol to 20.0 mol per 100 mol of the main component.. ... Tdk Corporation

02/08/18 / #20180040400

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 as an essential component, “m” is an element having ga or ga and one or more kinds selected from sn, bi and si, and 0.4≦x≦0.7, 0.00≦y+z≦0.20, 0.16≦a/b≦0.28, 0.050≦c/b≦0.075 and 0.005≦d/b≦0.028. The magnet includes a main phase, including a compound having a r2t14b type tetragonal structure, and a grain boundary phase. ... Tdk Corporation

02/08/18 / #20180040399

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 essential component, “m” is an element having ga or ga and one or more of sn, bi and si, 0.4≦x≦0.7, 0.00≦y+z≦0.20, 0.16≦a/b≦0.28, 0.050≦c/b≦0.070, 0.005≦d/b≦0.028, 0.25≦(a-2c)/(b-14c)≦2.00 and 0.025≦d/(b-14c)≦0.500. ... Tdk Corporation

02/08/18 / #20180039161

Optical element driving device

An optical element driving device is provided, including a fixed part, a movable part, a driving mechanism, and a position sensing assembly. The fixed part includes a base. ... Tdk Corporation

02/08/18 / #20180038920

Sensor unit and method for detecting an encoder at a predefined position

A sensor unit for detecting an encoder at a predefined position, having a circuit device and a threshold signal present at the circuit device, and a magnetic field sensor. The magnetic field sensor has a supply and ground terminal and first and second outputs, and outputs an analog sensor signal that is dependent on the distance of the encoder, and a supply unit connected to the supply terminal of the magnetic field sensor, the supply unit having a control input, and the circuit device is connected to the magnetic field sensor. ... Tdk Corporation

02/08/18 / #20180038011

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. The substrate has a gap and a rare earth element-containing region inside the aln layer or at the interface between the aln layer and the alumina substrate. ... Tdk Corporation

02/01/18 / #20180034431

Integrated circuit arrangement for a microphone, microphone system and method for 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 network circuit comprising a plurality of switches (sw1, . ... Tdk Corporation

02/01/18 / #20180033953

Spin current magnetization reversal element, element assembly, and method for 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 spin-orbit torque wiring which extends in a first direction that intersects the stacking direction of the magnetoresistance effect element, and contacts the surface of the magnetoresistance effect element on the side facing the second ferromagnetic metal layer, wherein at least one surface of the second ferromagnetic metal layer in the stacking direction has an inclined surface that is inclined in the first direction, and the direction of magnetization of the second ferromagnetic metal layer is inclined due to the inclined surface.. . ... Tdk Corporation

02/01/18 / #20180033738

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 therein, and a laminated film covering an upper surface of the mold resin, the laminated film including a magnetic film and a first metal film. The first metal film is connected to the power supply pattern. ... Tdk Corporation

02/01/18 / #20180031857

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 a lens from a base member are almost the same.. . ... Tdk Corporation

02/01/18 / #20180031856

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 object. ... Tdk Corporation

02/01/18 / #20180031855

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 contact with an x-axis drive shaft, a contact portion in which a first x-axis support portion comes into contact with an x-axis movable object holding portion, and a contact portion in which a second x-axis support portion comes into contact with the x-axis movable object holding portion.. . ... Tdk Corporation

02/01/18 / #20180031854

Lens driving device

A lens driving device is provided, including a base, a holder, a first driving mechanism disposed on the first side of the base, a second driving mechanism disposed on the second side of the base opposite the first side, and a conductive member disposed on the base. The holder is configured to sustain a lens. ... Tdk Corporation

02/01/18 / #20180031853

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 object holding portion to hold a y-axis movable object to be movable in a y-axis direction is provided at a position facing a y-axis actuator with the optical axis between the y-axis movable object holding portion and the y-axis actuator in the x-axis movable object. ... Tdk Corporation

02/01/18 / #20180031802

Moving mechanism

A moving mechanism for holding a lens is provided, including a carrier having an accommodating space, a coil, a sensing object, a base, at least one magnetic member, and a position detector, wherein the lens is disposed in the accommodating space. The coil and the sensing object are disposed on the carrier, and the coil surrounds the accommodating space. ... Tdk Corporation

02/01/18 / #20180031643

Measuring system

A measuring system having a magnetic device for generating a magnetic field and at least one magnetic field sensor for detecting a flux density of the magnetic field, at least in a first spatial direction. The magnetic device has a top side facing the magnetic field sensor, the magnetic field sensor is spaced apart from the top side of the magnetic device, the magnetic device has a main magnet, having two poles, with a main magnetizing direction for generating a main magnetic field and at least one secondary magnet, having two poles, with a secondary magnetization direction for generating a secondary magnetic field, the main magnet has larger dimensions than the at least one secondary magnet, the magnetic field is formed by superposition of the main magnetic field and the secondary magnetic field, the secondary magnetic field at least partially compensates the main magnetic field in the first spatial direction.. ... Tdk Corporation

02/01/18 / #20180031391

Measuring system

A measuring system for determining the position of a transducer along a z-direction, having a semiconductor body having a surface, a back surface, at least one connection contact and at least one magnetic field sensor which is sensitive in the z-direction, a carrier having a front side, rear side and electrically conductive regions, a magnet for producing a magnetic field, having a first magnetic pole formed along a first surface and an axis of symmetry extending perpendicular to the first surface, wherein between at least one connection contact of the semiconductor body and at least one conductor track of the carrier, there is an electrical operative connection, the first surface of the magnet being arranged parallel to the z-direction and the axis of symmetry of the magnet being arranged perpendicular to the z-direction, the transducer having an end face facing the magnetic field sensor.. . ... Tdk Corporation

01/25/18 / #20180027660

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 provided closer to the wiring layer 11 than the insulating layer 12 is in the lamination direction, wherein at least part of an end portion of the electronic component 20 on the wiring layer 11 side is in contact with the stress relieving layer 30, wherein at least part of an end portion of the electronic component 20 on the insulating layer 12 side is in contact with the insulating layer 12, and wherein the young's modulus of the stress relieving layer 30 is lower than the young's modulus of the electrode layer 21b.. . ... Tdk Corporation

01/25/18 / #20180026181

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 a-site is a non-magnetic divalent cation which is one or more selected from a group consisting of magnesium, zinc and cadmium.. . ... Tdk Corporation

01/25/18 / #20180025822

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, the soft magnetic metal powder is coated by the nonmagnetic material, and a number of an opposing part p is n/2 or more, in which the opposing part p is a part where a length l is 10 μm or more, and the length l is a continuous length where a distance between particles of the soft magnetic metal powder is 400 nm or less, is provided. The soft magnetic metal dust core is superior in dc superimposing characteristic.. ... Tdk Corporation

01/25/18 / #20180025821

High permeability magnetic sheet

A magnetic sheet comprises, by vol. %, fe—si—al alloy flat powder: 36% or more. ... Tdk Corporation

01/25/18 / #20180025820

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 element decreases from the surface toward the inside, a first grain boundary phase which contains the first heavy rare earth element and nd but does not contain co is present in one cross section including the region, and an area occupied by the first grain boundary phase in one cross section including the region is 1.8% or less.. . ... Tdk Corporation

01/25/18 / #20180024388

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

01/25/18 / #20180022386

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 to be used for determining the condition of the angle sensor, and a determination unit for determining the condition of the angle sensor. ... Tdk Corporation

01/18/18 / #20180019043

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. ... Tdk Corporation

01/18/18 / #20180019042

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. ... Tdk Corporation

01/18/18 / #20180017844

Lens driving module

A lens driving module includes a reflecting element, a base, a frame, a holder, an optical lens, a first electromagnetic driving assembly, and a second electromagnetic driving assembly. The frame is connected to the base, and the holder holds the optical lens and movably connects to the base. ... Tdk Corporation

01/18/18 / #20180017842

Lens driving mechanism and electronic device having the same

A lens driving mechanism is provided for moving a lens unit along a light axis, including a frame, a base, a lens holder, and a driving assembly. The frame has plastic material and forms an opening. ... Tdk Corporation

01/18/18 / #20180017634

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 first side and passes through a center position of the base.. ... Tdk Corporation

01/18/18 / #20180017411

Method and system for computing the phase shift or amplitude of a three phase system

A method and system for computing the phase shift or the amplitude of an electromagnetic three-phase system. The method comprises the following steps of: detecting vector values corresponding to an electromagnetic quantity by three sensors, the three sensors delivering signals that are offset from each other substantially by 0°, 120° and 240°; computing changed vector values by logically adjusting one of the detected vector values to a phase of 0°; and iteratively computing the phase shift of the three-phase system using the changed vector values.. ... Tdk Corporation

01/18/18 / #20180016134

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 expansion coefficient of which is suitably selected.. ... Tdk Corporation

01/11/18 / #20180013056

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 of an upper surface of a second through hole conductor. Accordingly, for example, deformation, rupture, or the like of the through hole conductor is prevented, and conduction failure or disconnection of an electrode layer or a through hole conductor is prevented. ... Tdk Corporation

01/11/18 / #20180012699

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 the side face of the core body, and the lead supporting part bended from the terminal body towards the bonding part at the near position where the lead part projects out from the side face of the core part. ... Tdk Corporation

01/11/18 / #20180011282

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. ... Tdk Corporation

01/11/18 / #20180011281

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 outside of the lens drive unit, a drive shaft of the actuator abuts on a first lateral wall and a column, so that the actuator is prevented from being inclined with respect to the base member.. ... Tdk Corporation

01/04/18 / #20180006553

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 for coupling with a pre-selected potential. ... Tdk Corporation

01/04/18 / #20180005654

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 on the front end part of the load beam and on which the slider supporting plate is supported rotatably; a drive unit that rotates the slider supporting plate around the support projection; a dynamic vibration absorber arranged on the slider supporting plate, wherein the dynamic vibration absorber is disposed closer to the rear end side of the load beam than the support projection and has vibration freedom in the rotating direction of the slide supporting plate.. ... Tdk Corporation

01/04/18 / #20180005648

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 part of a surface of the base; forming a non-magnetic oxide film to cover the opening and the exposed part of the surface of the base; forming a second resist pattern to fill the opening covered with the non-magnetic oxide film and then removing the first resist pattern and the non-magnetic oxide film; forming a first side shield and a second side shield on the base to allow them to face each other with the second resist pattern therebetween; and forming a magnetic pole between the first and the second side shields after removal of the second resist pattern.. . ... Tdk Corporation

01/04/18 / #20180004007

Lens driving apparatus

A lens driving apparatus with a lens portion having at least one lens, a base portion on which an image sensor detecting light coming through said lens portion can be fixed, a driving portion capable of relatively moving said lens portion in a vertical direction to a light axis of said lens portion and in a parallel direction to the light axis of said lens portion with respect to said base portion, and at least three suspension wires connecting a focus portion including said lens portion and said base portion so as to allow a relative movement. The suspension wires are arranged outside a magnet of said driving portion along the vertical direction to the light axis.. ... Tdk Corporation

01/04/18 / #20180004006

Lens driving apparatus

A lens driving apparatus with a lens portion having at least one lens, a base portion on which an image sensor detecting light coming through said lens portion can be fixed, a driving portion capable of relatively moving said lens portion in a vertical direction to a light axis of said lens portion and in a parallel direction to the light axis of said lens portion with respect to said base portion, and at least three suspension wires connecting a focus portion including said lens portion and said base portion so as to allow a relative movement. The suspension wires are arranged outside a magnet of said driving portion along the vertical direction to the light axis.. ... Tdk Corporation

01/04/18 / #20180004005

Lens driving apparatus

A lens driving apparatus with a lens portion having at least one lens, a base portion on which an image sensor detecting light coming through said lens portion can be fixed, a driving portion capable of relatively moving said lens portion in a vertical direction to a light axis of said lens portion and in a parallel direction to the light axis of said lens portion with respect to said base portion, and at least three suspension wires connecting a focus portion including said lens portion and said base portion so as to allow a relative movement. The suspension wires are arranged outside a magnet of said driving portion along the vertical direction to the light axis.. ... Tdk Corporation

01/04/18 / #20180003921

Tri-axis close-loop feedback controlling module for electromagnetic lens driving device

The tri-axis close-loop feedback controlling module for electromagnetic lens driving device comprises a 6-pin hall element. Two pins of the hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the z-axis; while other four pins of the hall element are coupled to a control unit. ... Tdk Corporation

01/04/18 / #20180003920

Lens driving mechanism

A lens driving mechanism is provided for driving a first lens and a second lens to move, wherein light enters the first and second lenses along a light incident direction. The lens driving mechanism includes a first base movably connected to the first lens, a first driving assembly, and a second driving assembly. ... Tdk Corporation

01/04/18 / #20180003918

Multiple-lens camera system

A multiple-lens camera system is provided, including a first lens driving module, a second lens driving module, and a shielding member. The first and second lens driving modules respectively include a frame, a lens holder movably disposed in the frame for holding a lens, a magnetic element disposed on a side of the lens holder and a driving board, wherein the driving board has a first coil corresponding to the magnetic element, to generate a magnetic force for moving the lens holder and the lens relative to the driving board. ... 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 to different electrode layers included in the plurality of electrode layers of the second electrode layer, and a first electrode layer of the first electronic component is divided into a plurality of electrode layers to correspond to the electrode layers which are included in the second electrode layer and which are electrically connected to the pair of electrodes of the second electronic component.. ... 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. ... 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. ... 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. ... Tdk Corporation

12/28/17 / #20170371232

Anti-shake compensation structure for auto-focus

An anti-shake compensation structure is provided. The anti-shake compensation structure includes an auto-focus module driving a lens to move along a light entering path of the lens. ... 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. ... 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 to perform at least one supply of an electromagnetic wave to the resonator body and reception of an electromagnetic wave from the resonator body. The resonator body has a first end face and a second end face located at opposite ends in a first direction. ... 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 ends 41a, 41b, 42a, 42b which are the conductive pathway of the coil part 40 are formed at the metal electrode 60, and a part of the surface of the metal electrode 60 is covered by the conductive resin electrode 62.. ... 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 %. ... Tdk Corporation

12/21/17 / #20170364625

Method for increasing the decoupling capacity in a microelectronic circuit

A method for increasing the decoupling capacitance in a microelectronic circuit. The method comprises producing a circuit design of the microelectronic circuit, analyzing the produced circuit design, and subsequently filling gaps in the circuit design by cells with decoupling capacitor.. ... 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 by the dimensions of the air supply that define the second volume.. ... Tdk Corporation

12/21/17 / #20170363837

Lens driving device

A lens driving device is provided, including a frame, a lens holder, and a dust-proof structure. The frame includes a top casing and a bottom base. ... 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. ... Tdk Corporation








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