|| List of recent Magnetic Field-related patents
|System on a chip inertial navigation system|
A system on a chip and a method for inertial navigation. The system includes a printed circuit board (pcb) on a single plane.
|Unmanned autonomous operating system|
In an unmanned autonomous operating system having a station provided with a signal generator for supplying an area signal in electric pulse current to an area wire that defines an operating area, and an unmanned autonomous vehicle having magnetic sensors for detecting a magnetic field generated by the area wire and a microcomputer programmed to recognize the operating area from the detected magnetic field, a selection mechanism is installed at the station that outputs one of area signals from the signal generator in response to a selection of a user, one of the area signals generated from the signal generator is registered, and the operating area is recognized based on the registered area signal.. .
|Electromagnetic apparatus and method for nerve localization during spinal surgery|
An electromagnetic pedicle awl utilizes a tightly focused time-varying magnetic flux to create a localized electromotive force (emf) near the tip. The localized emf creates localized eddy currents in nearby nerves which excite ionic nerve channels, the excitation being detected by an electromyographic recording device.
|Percutaneous magnetic gastrostomy|
A medical device system includes a needle having a tip including a permanent magnet, and a magnet sensing device including a plurality of sensors configured to detect the magnetic field of the permanent magnet. The magnet sensing device is operable to localize a position of the permanent magnet relative to the magnet sensing device and to indicate a path of the needle on a display..
|Esthetic apparatus useful for increasing skin rejuvenation and methods thereof|
Systems and methods for increasing skin rejuvenation of a region of a patient's skin. The system includes: a pulsed electromagnetic field (pemf) frequency generator that emits electromagnetic pulses to the region of the patient's skin; and a deep tissue diathermy device that applies heat to the region of the patient's skin up to temperature t.
|Magnetic field generating seat cushion|
A magnetic field generating seat cushion includes a cushion body, and a magnetic field generator, which is mounted in the cushion body, including a main circuit board, an inner coil and an outer coil. The inner and outer coils are electrically connected to the main circuit board.
|Method for non-invasive brain stimulation|
Magneto-electric nanoparticles in a subject interact with an external magnetic field to cause stimulation of neural networks in the subject. Electric signals in the neural network are coupled to magnetic dipoles induced in the nanoparticles to cause changes in electric pulse sequences of the subject's brain..
|Electronic locating system|
A method and apparatus for electronically locating and tracking persons, animals, or objects in a predetermined work area utilizing a number of base stations associated with the work area, provided with stationary transmitting-/receiving devices and a number of transponders added to the persons, animals, or objects to be located, provided with transmitting and receiving means, wherein the base stations generate interrogation fields which can be received by the transponders, wherein with the base stations low-frequency magnetic fields with a unique frequency for each base station are generated in the predetermined work area, and wherein transponders are used, which are provided with means to measure the field strength associated with each separate received frequency at the location of the transponder and then to transmit this as a position signal via high-frequency transmitting means of the transponder to high-frequency receiving means provided in the base stations.. .
|System and method for determining a magnetic field using a mobile device|
A method and system are provided for determining a magnetic field using a mobile device. The method includes determining location information of the mobile device, obtaining magnetic field data based on the location information, determining orientation information of the mobile device and applying the orientation information to the magnetic field data to compute a magnetic field corresponding to the orientation of the mobile device..
|Tool for use with dual-sided chemical mechanical planarization pad conditioner|
A tool includes a holder configured to couple to a dual-sided chemical mechanical planarization (cmp) pad conditioner. The holder has a magnetic material, a first magnetic field strength (h1) at a first face, and a second magnetic field strength (h2) at a second face opposite the first face.
|Composition for enhancing cellular uptake of carrier particles and method for the same|
A composition for enhancing cellular uptake of carrier particles comprises a delivery system for a drug or biochemical molecule; and a polyphenolic compound, wherein the polyphenolic compound is added to the drug or biochemical molecule delivery system to enhance cellular uptake of drug or biochemical molecules carried by the delivery system. A method for the same is also disclosed, wherein a polyphenolic compound or its derivative is mixed with an existing delivery system for drug or biochemical molecule, and the mixture is used to deliver drug or biochemical molecules into cells or an organism.
|Method for aligning nanostructures|
Disclosed in this specification is a method for aligning nanostructures. A substrate is coated with a liquid solution comprising particles.
|Electro-hydraulic pump (e-pump)|
A motor may comprise a stator and a rotor rotatable relative to the stator. A portion of the rotor may house a hydraulic pumping element of a hydraulic pump for effectuating movement of fluid from an inlet to an outlet thereby transforming the rotational power of the shaft into hydraulic power.
|Eardrum implantable devices for hearing systems and methods|
An implantable device is configured for placement in the eardrum to transmit an audio signal to a user. The device may be configured to improve transmission of an electromagnetic signal comprising light energy from an input assembly on a lateral side of eardrum to an output assembly positioned on a medial side of the eardrum, for example at least partially in the middle ear of the user.
|Switching structures for hearing aid|
A hearing aid is provided with a switch that automatically, non-manually switches at least one of inputs, filters, or programmable parameters in the presence of a magnetic field.. .
|Rotating high density fusion reactor for aneutronic and neutronic fusion|
A fusion device produces fusion of neutral atoms and ions in an “aneutronic fusion” manner without neutrons as products utilizes strong ion-neutral coupling at high neutral densities. Ions and neutrals rotate together in a cylindrical chamber due to frequent collisions.
|Eddy current thermometer|
A remote, noncontact temperature determination method and apparatus is provided, which is operable to determine the temperature of a conducting member in operative thermal communication with an object of interest. The method comprises the steps of first inducing a closed vortex eddy current in a conducting member by subjecting the member to a magnetic field, such that the corresponding eddy current magnitude changes exponentially over time.
|System and method of mixing a formation fluid sample obtained in a downhole sampling chamber|
A system for mixing a formation fluid sample obtained in a downhole sampling chamber. The system includes a mixing element disposed in the downhole sampling chamber.
|Method for magnetic screening of arrays of magnetic memories|
A testing method is described that applies a sequence external magnetic fields of varying strength to mram cells (such as those with mtj memory elements) in chips or wafers to selectively screen out cells with low or high thermal stability factor. The coercivity (hc) is used as a proxy for thermal stability factor (delta).
|Recording head and disk device including the same|
A recording head includes a main magnetic pole generating a recording magnetic field in a direction perpendicular to a recording medium, a write shield magnetic pole facing a trailing side of the main magnetic pole, a recording coil exciting a magnetic flux in a magnetic circuit, and a spin torque oscillator provided between the main magnetic pole and the write shield magnetic pole. The main magnetic pole includes a trailing side end surface that faces the spin torque oscillator and is tilted toward a leading side of the recording head with respect to the direction perpendicular to the recording medium, and the spin torque oscillator has layers with tilted surfaces that are substantially in parallel with the trailing side end surface..
|Magnetically controlled warning lamp|
A magnetically controlled warning lamp has a light module and a circuit board mounted in the body. The circuit board has a magnetic device, a control module and a power module.
|Magnetic configuration for high efficiency power processing|
Several new and useful features for a magnetic structure are provided. One feature is that the magnetic structures are configured to help minimize the winding's ac losses, improving the system's efficiency.
|Fault current limiter|
A three phase fault current limiter (fcl 6) has three spaced apart input terminals (7) for electrically connecting to respective terminals (5) of a transformer (2). Three output terminals (8) electrically connect fcl (6) with a load circuit (9) which draws load current iload.
|Magnetizer for electrical machines|
The present invention relates a device for magnetizing a rotor of an electrical machine with a power rating of at least 1 mw, wherein the rotor comprises permanent magnet material, said device comprising a yoke with an electromagnetic coil arranged to produce a pulsed magnetic field for magnetizing the permanent magnet material, wherein the magnetic field is sufficient to magnetize a permanent magnetic pole wherein the rotor and yoke is in a fixed relation to each other. The invention also relates to a method for magnetization of a rotor with permanent magnets for an electrical machine..
|Sensing the magnetic field of the earth|
A magnetometer includes a sensor housing having an internal bore formed therethrough and a magnetic field sensor disposed within the internal bore of the sensor housing. The magnetic field sensor is fixedly mounted within the internal bore of the sensor housing.
|Magnetic resonance imaging apparatus|
In order to improve image quality, a technique for obtaining information for eliminating distortions of the k-space in the readout direction and the phase encoding direction caused by the waveform distortion of the gradient magnetic field pulse is provided. A pulse sequence for the main scan is used to repeatedly measure echoes with changing the time integral value of the dephasing pulse for the readout gradient magnetic field.
|Magnetic resonance imaging apparatus|
A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a bore tube and a sealed space forming unit. The gradient coil is formed to be approximately cylindrical, arranged in a cylinder of the static magnetic field magnet, and adds a gradient magnetic field to the static magnetic field.
|Broad bandwidth magnetic resonance spectroscopy at high static (b0) magnetic field using polarization transfer|
A magnetic resonance (mr) generating a static (bo) magnetic field of 5 tesla or higher controller is configured to control an mr scanner to perform an mr sequence (14) including: performing an excitation/localization sub-sequence (30) on a subject disposed in the static (bo) magnetic field generated by the mr scanner to excite 1h polarization in a selected spatial region of the subject; performing 5 a polarization transfer sub-sequence (32) to transfer localized 1h polarization generated by the excitation/localization sub-sequence to a selected species of non-proton nuclei; and performing a magnetic resonance spectroscopy (mrs) readout sub-sequence (40) to acquire mrs data for the selected species of non-proton nuclei in the selected spatial region of the subject. The polarization transfer sub-sequence includes a pair of phase 10 distortion canceling trapezoidal 180° refocusing pulses (36, 37) operating on the selected species of non-proton nuclei..
|Motion sensitized and motion suppressed imaging using dante prepared pulse trains|
Systems and methods for motion sensitized and motion suppressed quantitative imaging of a subject are provided as a train of interlaced radio frequency (rf) and magnetic field gradient pulses. Non-selective delay alternating with nutation for tailored excitation (dante) pulse trains may be used in combination with gradient pulses and short repetition times as motion-sensitive preparation modules.
|Apparatus for detecting crack using heterogeneous magnetic sensors|
Disclosed herein are an apparatus and a method for detecting a crack. The apparatus includes a power supply unit, a sensor module, and a signal reception module.
|Quality control of diamagnetic materials using magnetic levitation|
The ability to levitate and detect height and orientation of diamagnetic objects suspended in paramagnetic solutions using an inhomogeneous magnetic field is described. By comparing the measured height and orientation of a sample material with the measured height and orientation of a reference material, quality control of objects can be carried out.
|Electromagnetic field and current inducing surfboard for repelling sharks|
An electromagnetic field and electrical current inducing surfboard and associated methodology for inducing an electromagnetic field in the area surrounding a surfboard. The surfboard includes at least one induction unit having a magnet and coil winding section.
|Charging circuit for an energy store of a portable electrical device|
Charging circuit for energy store of a portable electrical device has a first resonance switching circuit with a first receiver coil for receiving an alternating magnetic field which induces an electric voltage in the first coil, and an electrical component connected to a terminal of the first coil. The first coil and the further electrical component determine a resonance frequency (f0) of the first resonance switching circuit, a second resonance circuitry is also provided and has a second receiver coil and a further electrical component which determine a resonance frequency (f1, fn) of the second resonance circuitry.
|Circuit and method for sensorless control of a permanent magnet brushless motor during start-up|
The system discloses structure for synchronizing sequential phase switching in driving a set of stator windings of a multi-phase sensorless brushless permanent magnet dc motor. A drive voltage drives a plurality of the stator windings thereby producing a magnetic field.
|Vehicle and external power feeding apparatus|
A vehicle self-resonant coil provided at a vehicle is formed to extend along a circumference of a winding center, centered about the winding center. The distance between the center of the vehicle and an anti-node of the vehicle self-resonant coil that is the area of the anti-node of ac current flowing through the vehicle self-resonant coil when electromagnetic field resonant coupling is established between the vehicle self-resonant coil and the facility self-resonant coil is shorter than the distance between the winding center and the center of the vehicle..
|Magnetic pigment for use in the gaming industry|
A gaming accessory, gaming currency or gaming table comprising a surface and a magnetic pigment incorporated into the body or surface thereof is disclosed. The pigment is configured to be affected by the introduction of a magnetic field from a source such that the pigment appears to change from the first appearance to a second appearance when the accessory is placed in the vicinity of the magnetic field.
|Switch with quenching chamber|
A switch for polarity-independent direct current operation includes fixed contacts, each including a first contact area. A movable bridge contact with second contact areas is configured to form an electrically conducting connection between the contact areas in an on state and to separate the contact areas in an off state.
|Device for separating ferromagnetic particles from a suspension|
A device separates ferromagnetic particles from a suspension. The device has a tubular reactor through which the suspension can flow and which has a first region and a second region in the passage direction.
|Conveyor belt apparatus including magnetically actuated rollers|
A conveyor comprising a conveyor belt having rollers with metallic or magnetic rotors. A magnet or metallic element next to the conveyor belt is positioned to rotate the rotor.
|Photovoltaic element with an included resonator|
A photovoltaic element including a resonator is arranged on a semiconductor structure (5) that is constituted by a region without electromagnetic damping (5a), whose upper plane forms the plane of incidence (3), and a region with electromagnetic damping (5b), both regions being bound by virtual boundaries (6) of variation in material properties. At least one 2d-3d resonator (4) is surrounded by a dielectric (10) and configured on the semiconductor structure (5), with a relative electrode (11) bordering on the region with electromagnetic damping (5b).
|Valves, pressure sensing devices, and controllers for heating appliances|
A valve apparatus includes substantially co-aligned first and second valve seats and substantially co-aligned first and second valve members. The first valve member is moveable relative to the first valve seat between at least an open position in which the first valve member is spaced from the first valve seat and a closed position in which the first valve member is seated against the first valve seat.
A torque sensor includes: a torsion bar; a multi-pole magnet; a pair of yokes on an outside of the multi-pole magnet in a radial direction and providing a magnetic circuit in a magnetic field generated by the multi-pole magnet; and a pair of magnetic sensors arranged along a circumferential direction. Each magnetic sensor includes a magnetism sensing part for detecting a magnetic flux density generated in the magnetic circuit, and outputs a detection signal to an external computing device.