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Magnetic Field patents

      

This page is updated frequently with new Magnetic Field-related patent applications.




new patent Cooking apparatus
A cooking apparatus includes: a main body; a cooking table; an induction coil configured to emit a magnetic field needed for induction heating of a cooking container; and a temperature measurement unit disposed in an electronic component chamber formed in the main body so as to measure a temperature of the cooking container. The temperature measurement unit includes: a case having an opening formed at a top surface thereof; a temperature sensor disposed in the case so as to measure a temperature of the cooking container; and a cooling duct, one side of which is coupled to the case and the other side of which includes an air inlet therein.
Samsung Electronics Co., Ltd.


new patent Induction heating systems, supports, and methods
The disclosed induction heating systems include an induction heating-resistant support beam, one or more legs, and an induction coil. The support beam includes a plurality of metal sheets and a plurality of electrically insulating layers interspersed among the metal sheets.
The Boeing Company


new patent Contactless data communication using in-plane magnetic fields, and related systems and methods
Embodiments described herein are related to contactless data communication. Related systems and methods for contactless data communication are disclosed herein.
Qualcomm Incorporated


new patent Tunable reactance devices, and methods of making and using the same
A tunable reactance device and methods of manufacturing and using the same are disclosed. The tunable reactance device includes a substrate, a microelectromechanical (mem) structure supported on the substrate and comprising a conductive material, and a driver configured to move the mem structure with respect to the substrate upon application of an electrostatic force to the driver.

new patent Control device for permanent-magnet rotary motor
A control device converts phase currents supplied to a permanent-magnet rotary motor into a d-axis current and a q-axis current on a dq coordinate axis, and calculates a current command (a d-axis current command or a q-axis current command) for changing at least one of values of the d-axis current and the q-axis current according to a rotor position, based on a torque command, the d-axis current and the q-axis current, so as to cause a magnitude of a reverse magnetic field acting on a permanent-magnet end part to be equal to or lower than a magnetic coercive force of a permanent magnet.. .
Mitsubishi Electric Corporation


new patent Animal tail-wagging simulation device
An animal tail-wagging simulation device includes a housing, a circuit board mounted in the housing and provided with a driving coil, and a swinging arm pivotably coupled with the housing via a shaft. The swinging arm has an upper u-shaped portion.
Katzen Liebhaber Limited


new patent Wireless power transfer system and wireless power transfer method
A wireless power transfer system includes a first transmitter coil, a second transmitter coil and a third transmitter coil arranged such that normal directions to planes of the first, the second and the third transmitter coils are orthogonal to each other in a three-dimensional space, and a controller that controls electric currents supplied to the first, the second and the third transmitter coils such that a synthetic magnetic field vector produced by the first, the second and the third transmitter coils rotates in a plane of rotation at a first angular frequency “ω”, and that a normal vector to the plane of rotation rotates about an axis of rotation perpendicular to the normal vector at a second angular frequency “a” equal to or smaller than the first angular frequency (a≦ω).. .
Fujitsu Limited


new patent Wireless transmission device
A wireless transmission device includes a coil that generates a magnetic field; and a resonant power-storage element module that is electrically coupled to a coil, is capable of storing electric power, and forms a resonant circuit corresponding to a power transmission frequency together with the coil when transmitting electric power via the coil. The resonant power-storage element module is formed by connecting a plurality of power storage elements in parallel to form a parallel group, connecting a plurality of such parallel groups in series to form a parallel-series group, and connecting a plurality of such parallel-series groups in parallel..
Yazaki Corporation


new patent Wireless power transmission apparatus and method
A wireless power transmission device is disclosed. The wireless power transmission device, which is a medium-power wireless power transmission device that transmits power to a low-power wireless power reception device or a medium-power wireless power reception device, includes: a power conversion unit that converts electrical energy to a power signal; and a communications and control unit that communicates with the wireless power reception device and controls power transfer, the power conversion unit including: an inverter that converts dc input to an ac waveform that drives a resonant circuit; a primary coil that creates a magnetic field; and a current sensor that monitors the current in the primary coil, wherein the inverter operates in a full-bridge mode that drives a plurality of bridges or in a half-bridge mode that drives a single bridge..
Lg Electronics Inc.


new patent Wireless charging device and charging method thereof
A wireless charging device includes a transmitting-end ferrite core and a transmitting-end coil, wherein the transmitting-end ferrite core have a bottom plate and two upright plates for forming a u-shaped structure defining a charging space therein. One or more wireless power receiving apparatus is put in the charging space.
Tdk Taiwan Corporation


new patent

Switch box and overcurrent preventing method

A switch box includes a circuit substrate having a conductor pattern, a switching element that is mounted on the circuit substrate, a bus bar having a current input and output portion formed at one end thereof and a mounting portion formed at the other end thereof, the mounting portion being connected to the conductor pattern of the circuit substrate so as to be electrically conducted to the switching element through the conductor pattern, and a magnetic sensor that is mounted on the circuit substrate to detect a magnetic field generated due to a current flowing into the bus bar. The magnetic sensor is disposed in a gap formed between the circuit substrate and the bus bar..
Yazaki Corporation

new patent

Method for designing a modulated metasurface antenna structure

A method for designing a surface pattern for an impedance surface which results in a position-dependent target impedance of said impedance surface, and the impedance surface having the position-dependent target impedance radiates a desired first-type electromagnetic field radiation in reaction to being irradiated by a second-type electromagnetic field radiation. The method includes obtaining a first modal representation on the basis of the first-type electromagnetic field radiation in terms of a set of base modes that are chosen in accordance with a model function of the position-dependent target impedance, and obtaining a second modal representation on the basis of the second-type electromagnetic field radiation and the model function in terms of the set of base modes.
European Space Agency

new patent

Deformation detecting sensor for sealed secondary battery

A deformation detecting sensor for a sealed secondary battery of the present invention is used with a unit cell, battery module, or battery pack of the sealed secondary battery and includes: a magnetic resin layer stuck to the unit cell and/or battery module, the resin layer comprising a matrix composed of a resin component and a magnetic filler dispersed in the matrix; and a magnetic sensor attached to the inside or outside wall of a package case so as to be capable to detect a change of a magnetic field caused by the magnetic layer. The present invention can provide a deformation detecting sensor capable to detect bulging of a sealed secondary battery with higher sensitivity and to exhibit stable detection characteristics..
Toyo Tire & Rubber Co., Ltd.

new patent

Nano-patterned system and magnetic-field applying device thereof

A nano-patterned system comprises a vacuum chamber, a sample stage and a magnetic-field applying device, which comprises a power supply, a magnetic-field generation device and a pair of magnetic poles. The magnetic-field generation device comprises a coil and a magnetic conductive soft iron core.
Institute Of Physics, Chinese Academy Of Sciences

new patent

Magnetic materials and devices comprising rare earth nitrides

Disclosed herein are magnetic materials comprising rare earth nitrides and, more particularly, magnetic materials comprising multilayer-structured materials comprising one relatively soft and one relatively hard magnetic layer. The magnetic materials comprise a first ferromagnetic layer, a second ferromagnetic layer, and a blocking layer between and in contact with each of the first 5 and second ferromagnetic layers.

new patent

Quantum technology

A device for the storage and/or processing of quantum information comprises: a body (6), formed from a material having negligible net nuclear or electronic magnetic field; a set of data entities (4) embedded in said body, each having a plurality of magnetic field states; a set of probes (2), offset from the body, arranged to acquire internal phase shifts due to the magnetic fields of said data entities; wherein the probes (2) are each arranged to move relative to a plurality of data entities (4) in order that each probe (2) acquires an internal phase shift from the plurality of data entities (4); and means for reading each probe (2), thereby establishing a parity of the plurality of data entities (4).. .
Oxford University Innovation Limited

new patent

Skyrmion based universal memory operated by electric current

A method for generating a skyrmion, comprising: depositing a vertical metallic nanopillar electrode on a first side of a helimagnetic thin film, the helimagnetic thin film having a contact on a second side to provide a current drain; injecting a current through the vertical metallic nanopillar electrode to generate a rotating field; and applying a static upward magnetic field perpendicular to the helimagnetic thin film to maintain an fm phase background.. .
The Johns Hopkins University

new patent

Card reader

A card reader may include a card insertion port; a card passage; and a disturbing magnetic field generator. The disturbing magnetic field generator may include a core part including a core formed and a disturbing magnetic field generation coil wound around the core.
Nidec Sankyo Corporation

new patent

Distance determination between rfid tags

Technologies are generally described for distance determination between two or more rfid tags based on a minimum detectable signal. In some examples, a first rfid tag may establish communication with a second rfid tag, and modulate an irradiating electromagnetic field to generate backscatter signals for sequential transmission to the second rfid tag.
Empire Technology Development Llc

new patent

Utility locator devices, systems, and methods with satellite and magnetic field sonde antenna systems

A transmitter system for providing current to a utility when performing a locate operation is disclosed. The transmitter system may include a tray apparatus, a transmitter module for generating an output current for provision to the utility so as to generate a magnetic field for detection by a utility locator disposed on or in the tray apparatus, and a sonde antenna node, a satellite antenna node, or a combined satellite navigation and sonde antenna node..

new patent

Systems and methods for low power magnetic field generation for atomic sensors using electro-permanent magnets

Systems and methods for low power magnetic field generation for atomic sensors using electro-permanent magnets are provided. In one embodiment, a method for magnetic field generation for an atomic sensor comprises: laser cooling a sample of atoms in a chamber; and trapping the sample of atoms in a magneto-optical trap within the chamber by applying an atom trapping field across the sample of atoms using at least one pair of electro-permanent magnet units..
Honeywell International Inc.

new patent

Methods and trimming a magnetic field sensor

Method and apparatus for trimming a magnetic field sensor having a first magnetic field sensing element. In embodiments, trimming includes the use of a curve for normalized sensitivity of the first magnetic field sensing element derived from a first curve corresponding to current through a coil in a first direction at a first time to produce a field affecting the first magnetic field sensing element versus an external field and a second curve corresponding to current through the coil in a second direction opposite to the first direction at a second time to produce a field affecting the first magnetic field sensing element versus an external field..
Allegro Microsystems, Llc

new patent

Conductivity distribution derivation method and conductivity distribution derivation device

A conductivity distribution derivation method for deriving a conductivity distribution within a battery having an electrode plate that is flat includes: obtaining magnetic field information indicating a magnetic field; and deriving, based on a plurality of relational expressions which (i) an x component of a magnetic field vector in an x direction parallel to the electrode plate, (ii) a y component of the magnetic field vector in a y direction parallel to the electrode plate and perpendicular to the x direction, (iii) the conductivity distribution on a two-dimensional plane parallel to the electrode plate, and (iv) an electric potential distribution on a two-dimensional plane parallel to the electrode plate satisfy, the conductivity distribution that satisfies the plurality of relational expressions with respect to the magnetic field information.. .
Integral Geometry Science Inc.

new patent

Planar differential current pickup for wireless power transmission

Apparatus and methods for sensing current carried by one or more planar conductors is described. A plurality of sensing coils may be fabricated adjacent to one or more planar, current-carrying conductors.
Media Tek Inc.

new patent

Magnetics-free led light engine with high performance and low profile design

A light emitting diode (led) light engine includes an led circuit board including a light emitting circuit. The led light engine also includes a driver circuit configured to drive a plurality of leds arranged in the light emitting circuit.
Cooper Technologies Company

new patent

Antenna for downhole communication using surface waves

An assembly can include a casing string with an outer surface. The assembly can also include an antenna for wirelessly communicating data by generating a surface wave that propagates along an interface surface.
Halliburton Energy Services, Inc.

new patent

Electromagnetic jarring tool

An electromagnetic jarring tool and related systems and methods provide for the use of an electromagnetic system to generate jarring forces within a wellbore. The electromagnetic jarring tool includes a chamber having a first end and a second end, a magnetic hammer disposed within the chamber, and an electromagnet operable to generate an electromagnetic field across at least a portion of the chamber.
Halliburton Energy Services, Inc.

new patent

Systems and methods for determining field orientation of magnetic components in a ropeless elevator system

A ropeless elevator system, a propulsion system, and a method for operating a ropeless propulsion system are disclosed. The ropeless elevator system may include an elevator car, a hoistway in which the elevator car travels, and a ropeless propulsion system.
Otis Elevator Company

new patent

Apparatus and gaseous emissions treatment using front end induction heating

An assembly for treating gaseous emissions includes a substrate body having a front and a rear and cells for the passage of emissions gas. Inductance heating metal is located in the substrate body and an induction heating coil is mounted adjacent the substrate body for generating a varying electromagnetic field for inductively heating the metal and thereby heating the substrate body.
Advanced Technology Emission Solutions Inc.

new patent

Apparatus and gaseous emissions treatment with directed induction heating

An assembly for treating gaseous emissions includes a substrate body having cells for the passages of emissions gas. Lengths of metal wire are located in selected ones of the cells and an induction heating coil is mounted adjacent the substrate body for generating a varying electromagnetic field.
Advanced Technology Emission Solutions Inc.

new patent

Apparatus and gaseous emissions treatment with induction heating of loop conductors

An assembly for treating gaseous emissions includes a substrate body having cells for the passages of emissions gas. Lengths of metal wire are located in selected ones of the cells and an induction heating coil is mounted adjacent the substrate body for generating a varying electromagnetic field.
Advanced Technology Emission Solutions Inc.

new patent

Method and appratus for shielding a linear accelerator and a magnetic resonance imaging device from each other

A radiation therapy system comprises a magnetic resonance imaging (mri) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The mri system includes a split magnet system, comprising first and second main magnets separated by gap.
Viewray Technologies, Inc.

new patent

System with an electromagentic field generator with coils for treating tumors and a treating tissue

Treatment apparatus includes a plurality of coils configured to generate time-varying magnetic fields that induce electric fields within a subject. In one example, electric field strengths of at least 1 v/cm are produced in brain tissues exhibiting glioblastoma multiforme (gbm).
The United States Of America, As Represented By The Secretary, Department Of Health And Human Serv

new patent

Magnetic field-compatible components of a medical diagnostic and/or therapeutic system

A medical device assembly comprises a medical device comprising a shaft having proximal and distal end portions. The device further comprises a sensor at the distal end portion of the shaft that comprises first and second leads extending therefrom to the proximal end portion of the shaft.
St. Jude Medical, Atrial Fibrillation Division, Inc.

Lighting device and lighting fixture

The lighting device includes a converter circuit including a switching device, a first inductor, and a second inductor. The first inductor and the second inductor have winding directions such that a magnetic field of the first inductor and a magnetic field of the second inductor have a canceling effect on each other.
Panasonic Intellectual Property Management Co., Ltd.

Checking a presence of an electrically conductive body

An apparatus checks for a presence of an electrically conductive body in the near field of charging coils of an arrangement for induced charging. At least one transmitting device provides a transmission signal in the form of a magnetic field.

Device and control system for producing electrical power

Briefly, the invention involves a system and method for generating electrical power. The system includes an electromagnet positioned with one pole directed toward a like pole of a permanent magnet.
Magnetic Miles, Llc

Magnetic thrust generation system

An apparatus comprises multiple electrically conductive loops, an elongated tubular ferromagnetic shield, and an elongated tubular superconductive inner shield. The superconductive inner shield is positioned within the ferromagnetic shield.

Vibration motor

A vibration motor is provided in the present disclosure. The vibration motor includes a housing providing an accommodating space, and a first vibration system and a second vibration system elastically suspended within the accommodating space.
Aac Technologies Pte. Ltd.

Multi-degree of freedom electromagnetic machine

A multi-degree-of-freedom electromagnetic machine that may be operated as a motor, a generator, or a motor-generator, includes a first structure and a second structure. The first structure comprises a first conductor, a second conductor, and a third conductor, each of which follows a different trajectory.
Honeywell International Inc.

Electromagnetic motor patent

There are several concepts that i am trying to receive a patent for in this application. All of these concepts are related to making an improved electromagnetic motor.

Apparatus and methods for wireless power transmitter coil configuration

Methods and apparatus are disclosed for wirelessly transmitting power. In one aspect, an apparatus for wireless transmitting power is provided.
Qualcomm Incorporated

Electronic unit and power feeding system

An electronic unit includes: an electricity reception section configured to receive power fed from a power feeding unit using a magnetic field; a voltage detection section configured to detect a received voltage supplied from the electricity reception section; and a control section, wherein while preliminary power feeding at a lower power than main power feeding is performed from the power feeding unit, and when a received voltage detected by the voltage detection section is equal to or higher than a predetermined threshold voltage, the control section performs voltage reduction control so as to decrease the received voltage to lower than the threshold voltage.. .
Sony Corporation

Electronic device, controlling electronic device, and non-transitory computer readable recording medium

A charging coil generates induced electromotive force by interlinkage of a magnetic field from an external charger coil with the charging coil. A battery is to be charged with the induced electromotive force.
Kyocera Corporation

Electronic device, display method in electronic device, and non-transitory computer readable recording medium

An electronic device, a display method in an electronic device, and a non-transitory computer readable recording medium are disclosed. A charging coil generates induced electromotive force by interlinkage of a magnetic field from an external charger coil with the charging coil.
Kyocera Corporation

Magnetron and magnetron sputtering device

Embodiments of the invention provide a magnetron and a magnetron sputtering device, including an inner magnetic pole and an outer magnetic pole with opposite polarities. Both the inner magnetic pole and the outer magnetic pole comprise multiple spirals.
Beijing Nmc Co., Ltd.

Variable magnetic coupling reactor having two integrated reactor elements, power supply system including the same, and use of composite magnetic component having two integrated reactor elements

A core has first to third magnetic leg portions. First and second windings wound on the first and second magnetic leg portions, respectively, are connected in series to constitute a first reactor.
Toyota Jidosha Kabushiki Kaisha

Printed circuit for wireless power transfer

Printed circuit includes a substrate body having a plurality of substrate layers stacked along a z-axis. Each substrate layer is substantially planar and extends along an xy plane.
Tyco Electronics Corporation

Step gap inductor apparatus and methods

A low cost, low profile, small size and high performance inductive device for use in electronic circuits. In one exemplary embodiment, the device includes a ferrite core comprising a step gap, a winding disposed on the core, and a magnetic powder and epoxy mixture packed in to create a cubic-shaped inductor optimized for electrical and magnetic performance.
Pulse Electronics, Inc.

Sensor stabilization in a multiple sensor magnetic reproducing device

A multi-sensor reader that includes a first sensor that has a sensing layer with a magnetization that changes according to an external magnetic field. The first sensor also includes first and second side biasing magnets having a magnetization substantially along a first direction.
Seagate Technology Llc

Precision position encoder/sensor using nitrogen vacancy diamond

A position sensor system includes a position encoder component and a magnetic field sensor. The magnetic field sensor may be a diamond nitrogen vacancy material magnetic field sensor, and may be capable of resolving a magnetic field vector..
Lockheed Martin Corporation

Broadband metacoaxial optical nanoantennas based on plasmonic modes

Techniques, systems, and devices are disclosed for implementing nanostructures in the optical domain that highly localize the incident electromagnetic field to with a large spectral range from the visible to the infrared range. An optical nano antenna device is provided to include a substrate; a central conductive core formed on the substrate; and a peripheral conductive shell formed on the substrate and located peripheral to the central conductive core to surround at least a part of the central conductive core.
The Regents Of The University Of California

Ultra-slim nuclear magnetic resonance tool for oil well logging

Nmr properties of earth formations are determined using a logging device movable in a borehole. The logging device includes a magnet assembly to generate a static magnetic field and an antenna expandable from the surface of the magnet assembly into the borehole toward the borehole wall to increase the magnetic dipole moment of the antenna.

Ultra-slim nuclear magnetic resonance tool for oil well logging

Nmr properties of earth formations are determined using a logging device movable in a borehole. The logging device includes a magnet assembly to generate a static magnetic field and an antenna expandable from the surface of the magnet assembly into the borehole toward the borehole wall to increase the magnetic dipole moment of the antenna.

Downhole nuclear magnetic resonance sensor using anisotropic magnetic material

A nuclear magnetic resonance (nmr) sensor including a magnet that generates a static magnetic field, a soft magnetic core secured to the magnet, and an antenna extending at least partially about the soft magnetic core and generating a radio frequency (rf) magnetic field. A magnetic permeability of the soft magnetic core in a direction of the static magnetic field is less than the magnetic permeability of the soft magnetic core in a direction of the rf magnetic field..
Halliburton Energy Services, Inc.

Optically detected magnetic resonance imaging with an electromagnetic field resonator

Measuring a sample includes providing a magnetic field at the sample using an electromagnetic field resonator. The electromagnetic field resonator includes two or more resonant structures at least partially contained within dielectric material of a substrate, at least a first resonant structure configured to provide the magnetic field at the sample positioned in proximity to the first resonant structure.
President And Fellows Of Harvard College

All-optical and isotropic magnetometer

An optical pumping and isotropic measurement magnetometer. The magnetometer is all-optical in the sense that resonance between zeeman sub-levels is induced by modulating the intensity or the frequency of the pump beam.
Commissariat A L'energie Atomique Et Aux Energies Alternatives

Self-calibrating magnetic field monitor

A self-calibrating magnetic field monitor is disclosed. In one embodiment, a magnetic field sensor repeatedly generates an electronic signal related to the magnetic field.
Broadband Discovery Systems, Inc.

General purpose removal of geomagnetic noise

A magnetic sensor system, includes a plurality of magnetic field sensors and a controller. The plurality of magnetic field sensors are arranged in an array, each magnetic field sensor configured to measure a magnetic field at the magnetic field sensor.
Lockheed Martin Corporation

Current transducer

Electrical current transducer for measuring an electric current in a primary conductor, including a housing (4), a magnetic core (6) surrounding a central aperture (9) through which the primary conductor extends, and a magnetic field sensing device (8) comprising connection terminals (18). The housing comprises a magnetic core receiving cavity (22) in which the magnetic core is lodged and a connecting interface portion (25) in which the magnetic field sensing is lodged, the connecting interface projecting outwardly from the magnetic core receiving cavity and comprising latching elements complementary to latching elements of a separate connector interface element (11) selectively mountable to the connecting interface portion.
Lem Intellectual Property Sa

Integrated current sensor producing an integrated current sensor system

An integrated current sensor system has a printed circuit board with a magnetic field sensor with a sensor interface. The printed circuit board has a first side on which, isolated from the printed circuit board, a first current conductor is arranged with a longitudinal edge of a portion of the first current conductor being proximate to a sensitive area of sensor.
Ams Ag

Low loss acoustic wave sensors and tags and high efficiency antennas and methods for remote activation thereof

Enhanced surface acoustic wave (saw) sensors and saw sensor-tag wireless interface devices, including low loss devices, devices that enable enhanced use of time diversity for device identification, and devices suitable for use in band-limited environments (such as ism band) and for use in ultra-wideband applications are disclosed. Antennas for use with both saw sensors and/or tags, and wireless transceiver systems also are disclosed, including antennas suitable for operation in conductive media and in highly metallic environments, said antennas being used to activate and read said saw sensors and/or tags.
Sensanna Incorporated

Arrangement for measuring a force or moment on a hollow-cylindrical machine element

The present invention relates to an arrangement for measuring a force and/or moment on a hollow-cylindrical machine element, using the inverse magnetostrictive effect. The machine element extends in an axis and has a sensor region of hollow cylinder-type basic shape.
Schaeffler Technologies Ag & Co. Kg

Non-contact liquid level sensor

The present invention provides a non-contact pulley liquid level sensor, comprising a float capable of floating up and down and floating on a liquid surface, a tether, at least one pulley, a permanent magnet and a magnetic field angle sensor, wherein two ends of the tether are tied to the float, and are wound on the top end pulley and the optional bottom end pulley, the permanent magnet is installed on one side of the top end pulley and rotates together with the top end pulley under the effect of a friction torque produced by the tether. The magnetic field angle sensor detects a magnetic field produced by the permanent magnet and converts a rotation angle of the magnetic field into a voltage signal, then according to a relationship between the rotation angle of the permanent magnet and a floating distance of the float, a liquid level height is calculated via the output voltage signal.
Multidimension Technology Co., Ltd.



Magnetic Field topics:
  • Magnetic Field
  • Transverse
  • Magnetic Separator
  • Homogeneous
  • Photovoltaic Cell
  • Semiconductor
  • Compliance
  • Anisotropy
  • Crystallin
  • Electrical Machine
  • Wireless Power
  • Transmitter
  • Radial Direction
  • Eddy Currents
  • Calibration


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