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JP4284043B2 |
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JP4284882B2 |
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JP2009120927A |
To provide a relatively inexpensive soft magnetic amorphous alloy which has high amorphous-forming ability, also has relatively high saturated magnetic flux density and further uses little amount of expensive elements.The soft magnetic a...
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JP4271030B2 |
The invention relates to a magnetically hard object and to a method for adjusting a magnetic vector of a magnetically hard object. The aim of the invention is to provide a magnetically hard object and a method for producing the same, sai...
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JP2009519452A |
A miniature magnetic core includes at least one bar magnet having, in the demagnetized state, a plurality of magnetic domains separated by magnetic walls, the bar magnet having permanent discontinuities placed at least approximately at t...
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JP2009072014A |
To provide a method for laminating a stator core that improves characteristics of an electric motor without increasing the manufacturing cost by solving the problem that the number of windings is reduced more than the initial set, since ...
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JP4245295B2 |
A magnetic field applicator to heat magnetic substances in biological tissue, having a magnetic yoke with two pole shoes across from each other and separated from each other by a distance that defines the magnetic field exposure volume p...
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JP4242435B2 |
To provide a laminated core and its method of manufacturing which can manufacture a product of high quality in high efficiency without receiving an influence of swelling in the thickness direction of a connection member. In the laminated...
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JP4244097B2 |
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JP4238221B2 |
A highly bendable antenna core (8) which is highly bendable for high-frequency identification systems substantially retains its soft-magnetic properties when bending occurs. The antenna core is produced by using specific amorphous or nan...
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JP4231025B2 |
A magnetic circuit, a method of forming a magnetic circuit, a stator (10) or rotor (20) for an electric motor or generator, and an electric motor are disclosed. A magnetic circuit comprises a low reluctance magnetic flux path comprising ...
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JP4223155B2 |
A transformer apparatus which can reduce a switching noise current flowing between a primary side ground and a secondary side ground is provided. The transformer apparatus includes a first core having a first primary winding wound around...
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JP2009032860A |
To provide iron-base powder for a dust core capable of reducing hysteresis loss by reducing the coercive force of the dust core without reducing the strength of the dust core, to provide iron-base powder for a dust core capable of reduci...
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JP2009032880A |
To provide iron-based soft magnetic powder for dust cores that restrains an iron loss (hysteresis loss + eddy current loss), has permeability having a prescribed level up to a high-frequency region, and has stable permeability, and to pr...
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JP2009004696A |
To obtain a magnetic flux distribution having a nearly parallel magnetic field in the gap portion by adjusting magnetic flux distribution so as not to swell to barrel shapes in the gap portion without increasing the area of the gap.In a ...
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JP2008300705A |
To provide a compound magnetic body capable of improving DC superposition characteristics of a magnetic element using a metal magnetic body, and the magnetic element using the same.Disclosed is the compound magnetic body formed by lamina...
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JP2008294435A |
To provide a transformer core with core steel plates which can be assembled easily while being self-centering and improve the performances.A transformer core comprising a stack of a plurality of flat core plates of a magnetically permeab...
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JP2008270602A |
To improve characteristics of a ring core as compared with a ring core which has the same cross section and is rectangularly sectioned by sectioning the ring core in an asymmetrical hexagonal shape which is larger at an inner peripheral ...
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JP2008270438A |
To provide a small closed magnetic path type inductor which has a good DC superposition characteristic at a large current and does not require high material dimensional accuracy and/or assembly accuracy.This inductor is formed of a coil ...
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JP4165034B2 |
A transformer comprises E-type core parts, a cylindrical core part, a second substrate, first substrates, and an insulating sheet. Each of the second substrate and the fist substrates includes a penetration hole. A coil is wired around t...
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JP4159184B2 |
A magnetic circuit includes a multi-pole magnet (8) mounted on a predetermined surface of a yoke and having magnetic poles formed in a direction perpendicular to the predetermined surface of the yoke (6). The multi-pole magnet is separat...
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JP2008227526A |
To control a gap efficiently and advantageously from a cost view.An inductive device comprises an electric winding component having a generally toroidal shape, and a plurality of discrete magnetic components at least partially embracing ...
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JP2008199321A |
To provide a magnetic core for a transmission antenna, wherein high volume efficiency is attained.The magnetic core is a lamination body where b-number of Fe amorphous metal ribbons with the length of L and the width of (a), where (a) is...
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JP4132844B2 |
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JP4090971B2 |
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JP4092791B2 |
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JP2008098289A |
To establish high density of magnetic flux by reducing hysteresis loss and eddy current loss of a dust core.A stator core 20 as a dust core is formed by compressing compound powder 22 for molding and sintering it for heat treatment. The ...
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JPWO2005122192A1 |
A laminated coil includes a non-magnetic body section (5) inside a laminated body. On the non-magnetic body section (5), a coil conductor (4c) is provided. The number of coil turns of the coil conductor (4c) is greater than the number of...
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JPWO2005112053A1 |
To provide a magnetic circuit and a voice coil motor or an actuator which can omit the formation of a corrosion-resistant metal film and can be manufactured at low cost. According to the present invention, C: 0.0001 to 2% (mass%, the sam...
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JP4060101B2 |
An insulation film whose requisite constituent elements are first elements and a second element. The first elements include B, P, O and Fe. The second element can generate cations whose hexa-coordinated ion radius, defined by Shannon, R....
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JP4052436B2 |
A composite core nonlinear reactor comprising a first core member made of a high-magnetic-permeability material and forming a continuous annular magnetic path; a second core member made of a high-magnetic-permeability material and formin...
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JP4051301B2 |
The object of the present invention is to minimize the residual magnetic induction in a circular pole piece included in a magnetic circuit for magnetic resonance imaging. A circular pole piece (300) is divided into two portions, that is,...
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JP4047861B2 |
An object is to provide a magnetic field generator permitting fabrication by a simple manufacturing technique, such as plating, and capable of suppressing the generation of an eddy current as well as a photomagnetic information storage a...
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JP2008013827A |
To provide composite soft magnetic powder from which an inductor having high magnetic permeability and excellent frequency characteristics can be obtained and to provide a dust core using the same.A polymer material in which a functional...
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JP2008500713A |
An electromagnetic actuator comprising an actuator member ( 7, 8 ) movable under the action of at least one electromagnet ( 1 ) comprising a coil ( 3 ) associated with a core ( 2 ) arranged to channel magnetic flux generated by the coil ...
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JP2007538417A |
Disclosed is an inductive miniature structural element, particularly an antenna. Said structural element comprises a winding member ( 1 ) which is embodied as a flat component and on which three coil windings ( 2 X, 2 Y, 2 Z) are mounted...
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JP2007537637A |
An antenna arrangement for the inductive transmission of energy has magnetic cores made of a composite material with amorphous or nanocrystalline flakes and a moulded plastic material, so that the magnetic properties suitable for effecti...
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JP2007535176A |
An energizable magnetic core for use in an inductor or a transformer includes a plurality of legs extending from the back yoke. The back yoke is formed in a loop arranged to provide a magnetic circuit. Each of the plurality of legs have ...
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JP2007531328A |
A system and method reduces AC losses in a magnetic coil with a magnetic core with one or more gaps. A foil winding is formed with one or more cavities and is positioned about the magnetic core such that the cavities are adjacent to the ...
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JP2007281401A |
To reduce energy loss due to an eddy current by using a laminated steel plate used in a general electric apparatus, compared with a conventional material wherein flat plates are laminated. A level difference (1) is alternately provided b...
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JP3986043B2 |
To realize such a dust core that can keep a magnetic characteristic even when it is used in a high-temperature environment and shows no reduction of strength or no dimensional change, and can endure cutting or the like. This dust core is...
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JP3975363B2 |
A deflection apparatus for high perveance ion beams, operating at 20Hz fundamental and substantially higher order harmonics, has a magnetic structure formed of laminations (72) with thickness in range between 0.2 and 1 millimeter. A comp...
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JP2007228664A |
To provide a layered iron core wherein deviation in layer position between core pieces, reduction in space factor, and cracking in an iron core piece at the time of caulking portion formation are prevented, and excellent electromagnetic ...
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JP3970934B2 |
The present invention relates to a rotating asynchronous converter and a generator device. The converter comprises a first stator connected to a first AC network with a first frequency f1, and a second stator connected to a second AC net...
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JP2007524226A |
An apparatus and method for providing cooling to a magnetic circuit element having a magnetic core disposed around a centrally located core support member having at least one core support member wall is disclosed which may comprise a cor...
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JP2007210026A |
To provide an impeder core which can make a welding efficiency stable. The impeder core 9 comprises seven ferrite cores 21. Each ferrite core 21 is rodlike and has a dodecagonal cross-section perpendicular to its longitudinal direction. ...
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JP3964401B2 |
To provide a core for an antenna and a coil antenna which are excellent in impact resistance and manufacturability, and are inexpensive. The coil antenna for transmission includes a core 1 made from an insulating soft magnetic material, ...
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JP2007201206A |
To provide a ferrite core which can reduce the influence of a leaked magnetic flux on a coil, suppress deterioration of coupling degree of the coil to the minimum, and be easily manufactured. The ferrite core 40 is formed so that a cente...
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JP2007201318A |
To provide a magnetic sheet which improves communication performance of an antenna by exhibiting magnetic performance at a maximum while having necessary irreducible physical performance as a magnetic sheet, and to provide a manufacturin...
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JP3945967B2 |
To obtain high-frequency oxide soft magnetic material which can be improved in both saturation magnetic flux density and initial permeability, at the same time moreover DC superposition properties, even if it is subjected to firing at th...
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