|| List of recent Magnetic Field-related patents
|Method and apparatus for electromagnetic treatment of cognition and neurological injury|
Methods and devices for providing therapeutic electromagnetic field treatment to a subject having a cognitive or neurological condition or injury. Treatment devices can include headwear incorporating electromagnetic treatment delivery devices providing electromagnetic treatment to a user's head area.
|Reversible reaction sensors and assemblies|
A reversible reaction sensor provides for detecting medical, biologic or explosive airborne compounds. The sensor may be formed in semiconductor material and is activated by radiation from sources to provide sensing of particular airborne compounds optically detectable by detectors, and reversed by other radiation from a source (or removal of activating radiation) to take away such airborne compounds from the sensor.
|Superconducting power cable|
A superconducting cable for power lead and transmission applications is disclosed. The high performance power cable comprises two type of different superconducting cable structures arranged co-axially, and the magnetic fields of their transport currents mutually enhance their performances.
|Magnetic panel system|
A magnetic panel system for the construction of structures includes sets of polygonal panel bodies, preferably constructed using plastic or other suitable material, that have corners, edges, and endpoints of rods that are substantially rounded to conform to the accommodation of a plurality of hollow spherical sockets around the perimeter of the polygonal bodies, containing spherical magnets. Although spherical magnets are localized with a clearance in said hollow spherical sockets, they are free to rotate within due to external magnetic fields produced by magnets in other similarly constructed bodies.
|Apparatus for cluster detection|
The invention relates to a sensor apparatus (100) and a method for detecting clusters with magnetic particles in a sample. The sample is provided in at least one sample chamber (114) of a substantially planar cartridge (110) that is exposed to a modulated magnetic field (bxz, byz) generated by a magnetic field generator (190).
|Manipulation of beads in droplets and methods for manipulating droplets|
The invention provides a method of dispersing or circulating magnetically responsive beads within a droplet in a droplet actuator. The invention, in one embodiment, makes use of a droplet actuator with a plurality of droplet operations electrodes configured to transport the droplet, and a magnetic field present at a portion of the plurality of droplet operations electrodes.
|Fast pcr heating|
Provided herein is a microplate for polymerase chain reaction (pcr), comprising a substrate formed of a material that is susceptible to heating pcr samples upon the application of an electromagnetic field and/or electromagnetic energy to said substrate. The substrate provides a pcr ramp rate of at least 5° c./second upon the application of an electromagnetic field and/or electromagnetic energy to said substrate..
|Cell separation method|
The present invention provides methods and compositions for separating cells from a sample containing erythrocytes. The method is for recovering desired cells from a sample containing the desired cells, erythrocytes and undesired cells comprising: a) contacting the sample with a composition, said composition comprising: i) an erythrocytes aggregation reagent ii) at least one antigen recognizing moiety coupled to a magnetic particle, wherein said particle with said at least one antigen recognizing moiety specifically binds to at least one antigen specific for one or more undesired cellular components; b) applying simultaneously i) gravity sedimentation for sedimentation of erythrocytes and ii) a magnetic field gradient to said sample for immobilizing said magnetic particle generating a pellet and a supernatant phase, and c) recovering the desired cells from the supernatant phase.
|Microfluidic method and system for isolating particles from biological fluid|
The invention relates to a system and method for isolating particles from a biological fluid, including: obtaining a sample of biological fluid from a source (e.g. A patient) in which the sample contains particles of multiple sample particle types; tagging particles in the sample with tagging agents, including mixing the sample with a solution of magnetic tagging agents that selectively bind to particles of at least one of the sample particle types, thereby forming a group of tagged particles in the sample; passing the sample through a magnetic conduit having a magnetic field that interacts with at least some of the tagged particles; sorting the particles of the sample into multiple groups based on the interaction between the tagged particles and the magnetic field; and optionally returning selected portions of the processed fluid back to its source with or without the addition of appropriate therapeutic agents..
Embodiments herein relate to the production of biocompatible magnetic nanoparticles with a high sar-value which produce a large amount of heat when exposed to an alternating magnetic field. The produced heat can be used among others for therapeutic purposes, in particular for combating cancer..
|Magnetic field-controlled movable bio-scaffold and constructing method thereof|
Disclosed are a magnetic field-controlled movable bio-scaffold and a method for constructing the same. The bio-scaffold is highly biocompatible and can readily move to a target site under the control of an external magnetic field..
|System and method for extracting and collecting substances from a molecular combination|
A process for extracting hydrocarbons from a molecular combination is provided. The process includes heating a molecular combination to dissociate it into a particle stream of carbon cations, hydrogen cations, and oxygen anions; guiding the stream through a non-conductive conduit; moving the dissociated particle stream through a magnetic field to separate the cations from the anions; and isolating the separated cations from the anions.
|Wireless earplug with improved sensitivity and form factor|
An improved wireless communications earplug for use with a magnetic field transmitter. The wireless earplug has a receiver made of a coil of wire on a magnetic bobbin, mounted in close proximity or in contact with a magnetic case of a speaker.
|Heating plasma for fusion power using magnetic field oscillation|
In one embodiment, a fusion reactor includes two internal magnetic coils suspended within an enclosure, a center magnetic coil coaxial with the two internal magnetic coils and located proximate to a midpoint of the enclosure, a plurality of encapsulating magnetic coils coaxial with the internal magnetic coils, and two mirror magnetic coil coaxial with the internal magnetic coils. The fusion reactor is configured to vary electrical currents supplied to the magnetic coils to heat the plasma confined within the magnetic wall..
|Magnetic field plasma confinement for compact fusion power|
In one embodiment, a fusion reactor includes a plurality of internal magnetic coils suspended within an enclosure, one or more center magnetic coils coaxial with the plurality of internal magnetic coils, a plurality of encapsulating magnetic coils coaxial with the internal magnetic coils, and a plurality of mirror magnetic coils coaxial with the internal magnetic coils. The encapsulating magnetic coils maintain a magnetic wall that prevents plasma within the enclosure from expanding..
|Active cooling of structures immersed in plasma|
A fusion reactor includes an enclosure having a first end, a second end, and a midpoint substantially equidistant between the first and second ends of the enclosure. The fusion reactor includes two internal magnetic coils suspended within the enclosure and positioned on opposite sides of the midpoint of the enclosure, one or more encapsulating magnetic coils positioned on each side of the midpoint of the enclosure, two mirror magnetic coils positioned on opposite sides of the midpoint of the enclosure, and one or more cooling lines within each of the internal magnetic coils.
|Wireless array device and system for managing wireless arrays having magnetometers|
A wireless array for providing access to a network is provided. The wireless array includes at least two transceivers in signal communication with a client.
The use of gestures on a user device to interact with and obtain functionality from remote communication hub devices is disclosed. A user device includes an accelerometer or other motion detection device and a wireless communications capability.
|Field emission system and method|
An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code.
|Multi-channel coil array for parallel magnetic resonance imaging|
This disclosure provides a coil array for parallel magnetic resonance imaging data acquisition, comprising: a plurality of coil elements, wherein each of the coil elements is formed by a loop of wire, wherein the plurality of coil elements are arranged such that the coil elements are covering the imaged sample and uniformly distributed over a plane comprising the encoding directions not in parallel with the frequency encoding directions, which are the directions of the static magnetic field variation generated by a plurality of gradient coils of a magnetic resonance imaging system during magnetic resonance data sampling.. .
|Method and local coil system for producing a magnetic resonance radio frequency field|
A magnetic resonance rf field is produced in a magnetic resonance imaging system that includes a main magnetic field apparatus and an object-bearing table movable relative to the main magnetic field apparatus and on which a local coil system is arranged. The local coil system includes a plurality of transmission elements.
A metal sensor includes a primary coil, a compensation coil, a first additional coil, and a magnetic field sensor. The first additional coil is configured to be excited without the primary coil and the compensation coil being excited..
|Electrical current transducer|
A closed-loop current transducer comprising a magnetic circuit, a magnetic field detector, and a compensation coil assembly configured to generate a magnetic field opposing a magnetic field created by an electrical current to be measured flowing in one or more primary conductors extending through a central opening of the magnetic circuit. The magnetic circuit comprises a first branch, a second branch, and first and second end branches, interconnecting the first and second branches such that the branches surround a central passage through which the one or more primary conductors may extend, the second branch forming a receptacle that defines a cavity extending in an axial direction a for receiving a sensing portion of the magnetic field detector, the second branch comprising two second branch portions separated by an interface resulting from the bringing together of opposed ends of a single piece magnetic circuit..
|Coreless current probe and a method of measuring direct current|
A coreless current probe has a u-shaped body with arms, an open end and a cross piece forming a closed end. The opening formed in the u-shaped body has a length not less than the width between the arms.
|Magnetometer with dual purpose reset and calibration coil|
The present invention discloses a magnetic field sensing device that utilizes a single coil for calibrating the response of the sensor to compensate for temperature dependent sensitivity drift and also for resetting the magnetic field sensor in order to eliminate hysteresis. The single coil configuration is advantageous since it reduces the size of the sensor chip by decreasing the number of contact pads on the chip and also because it wastes less space, which permits an increase in the density of the magnetoresistive elements on the sensor chip..
|Electro-optic current sensor with high dynamic range and accuracy|
An optical sensor that senses current by directing polarized light across an airgap that is orthogonal to a direction of current running through a conductor. The sensor includes a prism having a high verdet constant for high sensitivity to magnetic fields, which cause an angle of polarization of the polarized light to be rotated as an indication of the magnitude of current.
|Electronic unit and feed system|
An electronic unit includes: a power receiving section configured to receive electric power fed from a feed unit by using a magnetic field; and a control section configured to perform, when a receiving current supplied from the power receiving section is less than a predetermined threshold current at a time of a light load, current increasing control to increase the receiving current to the threshold current or more.. .
|Electronic apparatus and feed system|
An electronic apparatus includes: a power reception section configured to receive first power from a feed unit through power transmission with use of a magnetic field or an electric field; a power input section configured to receive second power supplied from an external power source through wired connection; a switching section configured to output one of the first power supplied from the power reception section and the second power supplied from the power input section; and a secondary battery configured to be charged, based on power output from the switching section.. .
|Motor, motor system, and motor encoder|
A motor according to an embodiment includes a motor body, a rotating body, and a magnetic field sensor. The motor body rotates a shaft about the axis line thereof.
|Power generating device|
There are included: an oscillating member that includes a tough layer and a magnetostrictive layer stacked above the tough layer and formed of a magnetostrictive material, the tough layer formed of a tough material having a tensile strength higher than that of the magnetostrictive material; a supporting member to which the oscillating member is attached to be able to oscillate in the thickness direction; a magnetic field applying member that applies a magnetic field to the magnetostrictive layer; and a coil that is disposed around the magnetostrictive layer.. .
|Pendulum apparatus having a sustained swing|
An apparatus (100), including: a pendulum (102) having a pendulum magnet arrangement; a stationary magnet (118, 122) positioned such that a magnetic field of the stationary magnet repels the pendulum magnet as it approaches the stationary magnet; and a magnetic shielding apparatus (126, 128) configured to intermittently shield the stationary magnet from the pendulum magnet. The magnetic shielding apparatus is configured to shield the stationary magnet from the pendulum magnet as the pendulum magnet approaches an apex position (16, 42) of a cycle.
|High efficiency and power transfer in wireless power magnetic resonators|
A wireless power transmission system is disclosed. In one aspect, the system includes a transmitting antenna configured to transmit power, via a magnetic field, to a receiving antenna to power a load.
|Wireless power supply apparatus, wireless power supply system, and wireless power supply method|
A wireless power supply apparatus includes a power supplying unit that supplies electric power to a power transmission coil at a resonance frequency at which magnetic field resonance is generated between the power transmission coil and a power reception coil, the power transmission coil sending out electric power as magnetic field energy, using the magnetic field resonance; a detecting unit that detects a phase difference of current flowing in the power transmission coil for voltage applied to the power transmission coil; and a control unit that switches an amount of the electric power supplied by the power supplying unit, based on the phase difference.. .
|Feed unit and feed system|
A feed unit includes: a power transmission coil configured to perform power transmission using a magnetic field; a coupling coefficient calculation section configured to calculate a coupling coefficient between the power transmission coil and a power reception coil in a unit to be fed with power. The coupling coefficient calculation section measures frequency characteristics of input impedance in a non-operating state of a rectification circuit in the unit to be fed with power, and uses a measurement result of the frequency characteristics to calculate the coupling coefficient..
|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.. .
|Method and apparatus for the industrial production of new hydrogen-rich fuels|
A method with various related apparatus polarizes the orbits of atomic electrons by strong magnetic fields creating in the atomic structure a magnetic field. The polarized atoms are introduced onto fuels, improving an efficiency of the fuels, including but not limiting to, new forms of gaseous, liquid and solid fuels with a bonded-in content of hydrogen, oxygen and/or other gases to enhance energy output and decrease contaminants in the exhaust.
|Arrangement and method for flow control of molten metal in a continuous casting process|
An arrangement for a continuous casting process. The arrangement includes a vessel having a first opening for receiving molten metal in the vessel, a second opening for discharging the molten metal from the vessel, and a body extending between the first opening and the second opening, a first magnetic arrangement attached to the body, the first magnetic arrangement having a magnetic core with legs, and coils arranged around the legs, and a power system configured to provide an alternating current superimposed on a carrier current to each of the coils, each pair of alternating current and carrier current provided to a coil forming a flow control current, wherein flow control currents provided to adjacent coils are phase shifted relative each other, thereby creating a travelling magnetic field in molten metal in the vessel.
|Broadband electromechanical spectroscopy|
An apparatus, method, and material wherein the material's viscoelastic and/or fatigue life may be altered by application of a secondary tuning electromagnetic field or a selected temperature, and the material's viscoelastic and/or fatigue properties are measured by a mechanical response of the material caused by applying a primary driving electromagnetic field.. .
|Stress monitoring device of elasto-magneto-electric (eme) effect type|
A stress monitoring device of elasto-magneto-electric (eme) effect type, for monitoring stress of a structural component of ferromagnetic materials, includes a magnetic field generating unit, a magneto-electric (me) sensing unit, a support skeleton, and a signal controlling and conditioning instrument. Under the control of the signal controlling and conditioning instrument, the magnetic field generating unit generates a magnetic field for magnetizing the structural component.
|Method for using optical metrology to monitor critical dimension uniformity|
Various embodiments provide systems, computer program products and computer implemented methods. In some embodiments, the system includes a method of determining a characteristic of an optical mask.
|Systems and methods for compensating for a misalignment angle between an accelerometer and a magnetometer|
A method for compensating for a misalignment angle between an accelerometer and a magnetometer includes applying a corrective rotation to collected accelerometer data or magnetometer data based on an estimated misalignment angle between an axis of the accelerometer and an axis of the magnetometer. The method further includes estimating a gravity vector using the corrected accelerometer data and estimating a magnetic field vector using the corrected magnetometer data.
|System and method to determine the state of charge of a battery using magnetostriction to detect magnetic response of battery material|
One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery.. .
|Adjustable magnetic devices and methods of using same|
A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw..
|Noninvasive device for adjusting fastener|
One or more techniques and/or systems are disclosed for a system for noninvasive adjusting fastener tensioning has an elongated shaft having a slot defined therein. The shaft has a first end oppositely disposed from the second end.
|Selective zero-quantum coherence transfer (sel-zqc) method for metabolite imaging in a poorly shimmed magnet field without susceptibility artifact|
Systems and methods employing spin editing techniques to improve magnetic resonance spectroscopy (mrs) and magnetic resonance spectroscopic imaging (mrsi) are discussed. Using these spin editing techniques, magnetic resonance signals of one or more non-target chemicals (chemicals whose signals are to be filtered out or suppressed) chemicals can be suppressed, so that the signal(s) of a set of target chemicals can be obtained without signals from the one or more non-target chemicals.
|Superconducting magnet and nuclear magnetic resonance device|
There is provided a superconducting magnet in which magnetization caused by a shielding current of a superconducting winding is eliminated whereby the current to be supplied to the superconducting winding is uniformized, and thus uniformity of the central magnetic field is secured. The superconducting magnet has a superconducting winding composed of a superconductor, and an outer ac winding composed of a superconductor or non-superconductor wound coaxially with the superconducting winding, at an outer side the superconducting winding; and an ac current is supplied to the outer ac winding thereby applying an ac magnetic field in a direction perpendicular to a direction of magnetization caused in the superconducting winding by the shielding current, and thus the magnetization is eliminated.
|Golf training equipment|
A training equipment usable to check the quality of the putt stroke comprising a base arrangeable on the ground and adapted to receive a golf ball in a predetermined position, magnetic flux detecting means applied to the base at least in front of and behind said predetermined position and so as to be visible from above the base, of the type adapted to visually show a trace depending on the variation of the pattern of the flux lines of the magnetic field applied to the base even after its removal; and at least a first magnet, preferably a permanent magnet, applied to the head base of a putter in correspondence of a part of the head intended in use to hit the ball, oriented so as to have while performing the putt stroke one of the poles facing the flux detecting means; a second magnet is available towards the flux detecting means with polarity opposite to the first so as to cancel the trace.. .
|Nonreciprocal circuit element and transceiver device|
A nonreciprocal circuit element is configured so that a first center electrode and a second center electrode are arranged on a ferrite, to which a direct current magnetic field generated by a permanent magnet is applied, so as to cross each other and be insulated from each other. One end portion of the first center electrode is connected to a first unbalanced input/output port and one port of a plurality of balanced input/output ports and the other end portion of the first center electrode is connected to ground.
|Biological detector and method|
A biological detector includes a conduit for receiving a fluid containing one or more magnetic nanoparticle-labeled, biological objects to be detected and one or more permanent magnets or electromagnet for establishing a low magnetic field in which the conduit is disposed. A microcoil is disposed proximate the conduit for energization at a frequency that permits detection by nmr spectroscopy of whether the one or more magnetically-labeled biological objects is/are present in the fluid..
|Analyte detection using magnetic hall effect|
Determining a presence of a target analyte in a fluid sample includes mixing multiple magnetic particles with the fluid sample, in which the magnetic particles are each bound to one or more binding moieties that specifically bind to the target analyte, flowing the fluid sample containing the magnetic particles through a fluidic channel, exposing the fluid sample in the fluidic channel to a magnetic field, measuring a signal from a hall effect sensor while the fluid sample flows through the fluidic channel, and determining whether the target analyte is present in the fluid sample when the measured signal is in a first range of values.. .
|Methods for diagnosing cancer by characterization of tumor cells associated with pleural or serous fluids|
A method for diagnosing or differentially diagnosing a cancer characterized by the presence of cancer cells in the pleural fluid of a mammalian subject, the method comprising contacting a sample of pleural fluid of the subject with colloidal magnetic particles coupled to a ligand which binds to a determinant on a cancer cell, but does not bind above a baseline threshold to other cellular and non-cellular components in pleural fluid; subjecting the pleural fluid-magnetic particle mixture to a magnetic field to produce a cell fraction enriched in ligand coupled-magnetic particle-bound cancer cells, if present in the pleural fluid; and analyzing the enriched fraction for the number of cancer cells in the pleural fluid. In certain aspects, this method involves preparing the pleural fluids for the above-noted method steps by, e.g., dilution of unprocessed pleural fluid.
|Processing of biological sample components|
The invention relates to means for processing a sample fluid containing different components, particularly magnetic particles (m) and targets (cells) (c+m) labeled with magnetic particles. A processing device (100) according to the invention comprises a container (110) with a first compartment (120) that can be filled with a sample fluid and that is separated from a second compartment (130) by a filtering element (140).
|Composite metal surface|
A composite metal surface that looks metallic, but permits effective transmission of an electromagnetic field. The composite metal surface can be integrated into various electronic equipment, such as telephones, remote controls, battery doors, keyboards, mice, game controllers, cameras, laptops, inductive power supplies, and essentially any other electronic equipment.
|Dual-coil geophone accelerometer|
An apparatus and a method for detecting vibration are disclosed. The apparatus comprises a housing, a magnetic structure forming a magnetic field in the housing, and a coil structure in the magnetic field, concentric of the magnetic structure.
|Magnetic confinement for microbeam radiation damage area|
Various embodiments relate to a method of performing microbeam radiation therapy on a subject, including: producing a high-energy radiation beam in a first direction; producing planar microbeams using the high-energy radiation beam in the first direction, wherein the microbeams have a width, wherein the planar microbeams produce scattered electrons; and applying a magnetic field in a direction lying in a plane substantially parallel to the planar microbeams, wherein the strength of the magnetic field corresponds to the width of the microbeam.. .
|Magnetic disk unit and thermally-assisted magnetic recording method|
The magnetic disk unit includes: a magnetic recording medium; a thermally-assisted magnetic recording head including a magnetic pole applying a recording magnetic field to the magnetic recording medium and a heating element heating the magnetic recording medium; and a controller allowing the heating element to perform a continuous heating operation at a first temperature for a first time period, and halting the heating operation of the heating element or allowing the heating element to perform a heating operation at a second temperature lower than the first temperature for a second time period that follows the first time period, the first time period having a length substantially equal to or less than a length of a time required for the magnetic recording medium to rotate one turn, and the second time period having a length substantially equal to or more than the length of the first time period.. .
|Multi-coil multi-terminal closed-loop geophone accelerometer|
An apparatus and a method for detecting vibration are disclosed. The apparatus comprises a housing, a magnetic structure forming a magnetic field in the housing, and a coil structure in the magnetic field, concentric of the magnetic structure.
|Magnetic synchronization for a positioning system|
A synchronization system for an acoustic signal-based positioning system is provided that generates a magnetic field as a synchronization signal. The magnetic synchronization signal is transmitted by a transmitter of the positioning system and received by the receiver of the positioning system.
|Magneto-resistive effect element|
The magneto-resistive effect element (10) of the invention has a compound semiconductor layer (11) composed of a compound semiconductor such as inas, metal layers (12a and 12b) composed of a metal element such as ni not composing the compound semiconductor, and interlayers (13a and 13b) of niinas or the like composed of the constituent elements of the compound semiconductor and a metal element, situated between the compound semiconductor layer and the metal layer. In the magneto-resistive effect element (10) of the invention, application of a magnetic field (50) alters the conductance with respect to the electric current (60) flowing through the metal layer (12b), interlayer (13b), compound semiconductor layer (11), interlayer (13a) and metal layer (12a)..
|Temperature regulation of inductive charging devices in extreme vehicle environments|
A thermal conditioning system for an inductive charging system. An open enclosure charging unit includes at least one surface generating an electromagnetic field for inductively charging a portable device.
|Cpp-type magnetoresistive element including a rear bias structure and lower shields with inclined magnetizations|
An mr element suppressing a false writing into a medium with an mr part has a cpp structure. The mr part includes a nonmagnetic intermediate layer and first and second ferromagnetic layers so as to interpose the nonmagnetic intermediate layer.
|Cpp-type magnetoresistance effect element and magnetic disk device using side shield layers|
An mr element includes an mr part and upper and lower shield layers in a cpp structure. The mr element has side shield layers so as to interpose the mr part between the side shield layers in a track width direction.
|Thin film magnetic head with side layers under compression stress|
A thin film magnetic head includes a spin valve film that includes a magnetization free layer, a magnetization pinned layer and a non-magnetic spacer layer that is disposed between the magnetization free and pinned layers, and a pair of side layers that are disposed at both sides of the spin valve film in a track width direction and at least in the vicinity of the magnetization free layer and the magnetization pinned layer. Each of the side layers has a bias magnetic field application layer that includes a soft magnetic layer and applies a bias magnetic field in the track width direction to the magnetization free layer, and a gap layer that is positioned between the spin valve film and the bias magnetic field application layer, and the side layers have compression stresses at least in the vicinity of the magnetization pinned layer..
|Antenna device, rfid tag, and communication terminal apparatus|
An rfic element includes a capacitance therein. By this capacitance and an inductance of a loop-shaped conductor, an lc resonant circuit is provided.
|Method and system for determining locations of smartkeys|
A location of a smartkey is determined by first determining coordinates of a set of candidate vertices of an array of receive antennas at a receiver based on maximal magnetic field voltages in the receive antennas due transmitting a radio signal (rf) by the smartkey. A set of candidate locations of the transmitter is determined based on the coordinate of the set of vertices.
|Atomic oscillator and manufacturing method of the atomic oscillator|
An atomic oscillator includes an atomic cell in which an atom is enclosed, a magnetic field generation part to apply a magnetic field to the atomic cell, a reference oscillator which is controlled based on an atomic resonance signal outputted from the atomic cell and generates a reference signal, and a fractional n-pll which receives the reference signal to generate a signal including a resonance frequency of the atom, in which when a maximum digit of the resonance frequency adjustable by the magnetic field generation part is a boundary digit, the fractional n-pll can adjust at least a digit one digit higher than the boundary digit.. .
|Local coil system including an energy reception antenna for inductively receiving energy for the local coil system|
A local coil system for detecting magnetic resonance (mr) signals in a magnetic resonance tomography (mrt) device includes an energy reception antenna for inductively receiving energy for the local coil system from a magnetic field changing over time with an energy transmission frequency. The energy reception antenna includes a conductor loop running in loop-like fashion from a first loop connection to a second loop connection.
|Apparatus and method for measuring free radicals|
A double solenoid coil operates in accordance with input first and second signals to generate an electromagnetic field and to provide the generated electromagnetic field as a sample. Then, a signal corresponding to the generated electromagnetic field is received, amplified, and output by a double lock-in amplifier.
|Magnetic resonance imaging apparatus and magnetic resonance imaging method|
A magnetic resonance imaging apparatus according to an embodiment includes: an obtaining unit, a correction coefficient deriving unit, an amplification degree deriving unit, and a filtering processing unit. The obtaining unit obtains a distribution of a radio frequency magnetic field.
|Magnetic resonance imaging equipment, high frequency magnetic field irradiation method and program|
With minimizing extension of imaging time, the b1 non-uniformity reducing effect of rf shimming is maximized for an imaging section of an arbitrary axis direction and an arbitrary position. B1 distributions are measured for only several sections of one predetermined direction, and a radio frequency magnetic field condition that maximizes the b1 non-uniformity reducing effect for an imaging section of an arbitrary direction and an arbitrary position is calculated from the b1 distribution data.
|Determining positions of a magnetic field probe in a magnetic resonance measurement|
A method of determining the position of at least one magnetic field probe located within a pre-defined volume of interest within a magnetic resonance (mr) imaging or spectroscopy arrangement comprises applying a spatially and temporally variable magnetic reference field having a unique time-course at every point in said volume of interest during a preselected time window. An mr signal is acquired from said magnetic field probe during said time window, and the position of the probe is determined from the probe mr signal..
|Two axes mems resonant magnetometer|
A two-axes mems magnetometer includes, in one plane, a freestanding rectangular frame having inner walls and four torsion springs, wherein opposing inner walls of the frame are contacted by one end of only two torsion springs, each torsion spring being anchored by its other end, towards the centre of the frame, to a substrate. In operation, the magnetometer measures the magnetic field in two orthogonal sensing modes using differential capacitance measurements..
|Magnetic sensor with reduced effect of interlayer coupling magnetic field|
A magnetic sensor includes an mr element and a bias field generation unit. The mr element includes a magnetization pinned layer having a magnetization pinned in a direction parallel to an x direction, a free layer having a magnetization that varies depending on an x-direction component of an external magnetic field, and a nonmagnetic layer interposed between the magnetization pinned layer and the free layer.
|Magnetic sensor with reduced effect of interlayer coupling magnetic field|
A magnetic sensor includes an mr element and a pair of magnets. The mr element includes a magnetization pinned layer having a magnetization pinned in a direction parallel to an x direction, a free layer having a magnetization that varies depending on an x-direction component of an external magnetic field, and a nonmagnetic layer interposed between the magnetization pinned layer and the free layer.
|Electronic device having an electronic compass adapted to detect when the device is in a holster|
According to one aspect, a portable electronic device sized and shaped to be received within a holster having a magnetic element. The portable electronic device includes an electronic compass adapted to measure a magnetic field of the magnetic element in at least two axes.
|Magnetic biomedical sensors and sensing system for high-throughput biomolecule testing|
A magnetic biosensor can include a magnetic stack comprising a free layer, a fixed layer, and a nonmagnetic layer between the free layer and the fixed layer. At least one of the free layer or the fixed layer may have a magnetic moment oriented out of a major plane of the free layer or the fixed layer, respectively, in an absence of an external magnetic field.
|Durable miniature gas composition detector having fast response time|
A miniature oxygen sensor makes use of paramagnetic properties of oxygen gas to provide a fast response time, low power consumption, improved accuracy and sensitivity, and superior durability. The miniature oxygen sensor disclosed maintains a sample of ambient air within a micro-channel formed in a semiconductor substrate.
|Combined steering torque-steering angle sensor|
A steering torque-steering angle sensor comprising a steering torque sensor module and a steering angle sensor module, wherein the steering torque sensor module operates with a magnetic effective principle and has in this respect a first magnetic encoder and at least one first magnetic field sensor element, wherein the steering angle sensor module has at least a second magnetic field sensor element and a third magnetic field sensor element, wherein the second magnetic field sensor element directly or indirectly senses the magnetic field of the first magnetic encoder, that is to say of the magnetic encoder of the steering torque sensor module, and wherein the third magnetic field sensor element senses the magnetic field of an additional, second magnetic encoder.. .
|3-axis magnetic field sensor, method for fabricating magnetic field sensing structure and magnetic field sensing circuit|
A 3-axis magnetic field sensor on a substrate and including, a first tunneling magneto-resistor (tmr) having a first easy-axis for sensing a x-axis magnetic field, a second tmr having a second easy-axis for sensing a y-axis magnetic field, an out-of-plane magnetic sensor for sensing a z-axis magnetic field, and a reference unit is provided. The first easy-axis and the second easy-axis are orthogonal and include an angle of 45±5 degrees with a bisection direction, respectively.
|Selective shielding for portable heating applications|
A wireless power supply and a portable heating device are provided. The wireless power supply includes an electromagnetic shield and the portable heating device includes a magnetic field source.
|Door lock with integrated door position sensor|
A door lock with integrated door position sensor includes rectangular magnets positioned behind the door strike to maximize magnetic field strength in available space limited by industry-standard dimensions for the door strike. A beveled or stepped mounting opening for the sensor is formed in a front plate of the door lock and behind a non-magnetic faceplate.