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WO/1994/006131A1 |
The invention relates to a choke coil, the impedance of which can be matched within certain limits to a predetermined impedance, and a process for setting the impedance of the choke coil of the invention. The choke coil of the invention ...
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WO/1993/017445A1 |
A deflection apparatus for high perveance ion beams, operating at 20 Hz 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 com...
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WO/1993/016479A1 |
Disclosed is a helically wound core of ferrous material (14) used as a differential current sensor core in the ground fault sensor of a ground fault interrupter circuit. The ferrous material comprises a single strand of wire which is wou...
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WO/1992/020522A1 |
An iron powder composition comprising an iron powder coated with a substantially uniform coating of a thermoplastic material and admixed with a boron nitride powder and a method of utilizing the mixture to produce a magnetic core compone...
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WO/1992/006480A1 |
A magnetic core obtained by laminating or winding a magnetic thin belt and an electrically insulating material, and wherein a relation 0.5a b < a is maintained, where a is the width of the magnetic thin belt and b is the width of the ele...
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WO/1991/018404A1 |
A magnetic core (2) is fabricated from ferromagnetic metallic glass ribbon and mica paper insulation (1). The ribbon and insulation are co-wound, so that layers comprise alternate concentric rings. The wound core is then annealed in a va...
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WO/1991/015020A1 |
A magnetic core obtained by winding a long sheet of thin alloy or by laminating short sheets thereof. The surface roughness of the thin alloy sheet or sheets is limited to lie within a predetermined range in order to improve the squarene...
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WO/1991/012960A1 |
A laminated amorphous metal strip has a first layer (13) with at least two side-by-side strips of amorphous metal (11, 12) of unequal widths, and a second layer (15) with at least two side-by-side strips of amorphous metal (16, 17) of un...
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WO/1991/009442A1 |
The invention is directed to an extremely low loss, low cost construction for magnetic flux return paths which may be utilized in electrical or electromechanical devices which include a changing magnetic fields. The magnetic flux is dire...
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WO/1991/009234A1 |
An armature (26) of a frictional disc type electromagnetic brake should be designed to be thick because it constitutes part of a magnetic circuit, with the result that press molding of it becomes difficult. Therefore, the armature (26) i...
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WO/1991/006109A1 |
An electromagnet, especially for use in pilot valves for the direct control of the quantity of fuel injected in fuel injection pumps, has a pot magnet (25) of soft magnetic material, an annular exciting coil (30) and an armature (29) arr...
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WO/1991/001563A1 |
A magnetic metallic glass alloy exhibits, in combination, high saturation induction and low magnetic anisotropy energy. The alloy has a composition described by the formula FeaCobBcSidCe, where "a" - "e" are in atom percent, "a" ranges f...
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WO/1990/001617A1 |
In an electric control device for a gas shuttle valve, the armature plate moves in a space surrounded by a sleeve (32) between the two pole faces (36, 38). The ferromagnetic properties of the sleeve (32) vary along its length.
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WO/1989/007828A1 |
The so-called delta-phi choke coil exploits the effects of various core materials and/or air gap sections in the core parts on the magnetization curves of the core materials. It comprises at least two magnetically separated core sections...
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WO/1989/006860A1 |
The so-called delta-phi transformer makes use of the effects of various core materials and air gap sections in the cores on the magnetization curves of core materials. It consists of at least two magnetically separated cores, designated ...
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WO/1987/004298A1 |
A magnetic circuit device provided with a current coil, comprising a separate magnetic circuit component (2) for passing a magnetic field generated by coil (1) from one end of the magnetic longitudinal axis of a coil (winding axis) to it...
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WO/1987/003999A1 |
An ignition system for internal combustion engines comprises a circuit starting from a source of current (1) and containing the primary winding (6) of an ignition coil (7) and an induction coil (5) with a magnetically conductive core (11...
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WO/1987/003736A1 |
In order to reduce the magnetic field radiated by a high voltage transformer, the air gap is arranged inside the winding (9), a distance piece (8) providing for the mechanical rigidity of the magnetic circuit (2, 3) which is assembled by...
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WO/1986/005314A1 |
In producing a laminate by bonding a plurality of thin amorphous alloy strips or further a core from such a laminate, an adhesive of a borosiloxane resin having an excellent heat resistance is used to prevent deterioration of bond streng...
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WO/1984/000843A1 |
Coil comprising a closed magnetic circuit (1) consisting of cut out and piled metal sheets so as to form a first U-shaped part (12), of which one of the portions (12a) is cut to form a chamfer (12b), a second L-shaped part (13) comprisin...
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WO/1982/003943A1 |
Trip solenoids commonly employing an axially oriented holding magnet which is positioned in the space between a portion of the frame and a fixed pole. Commonly the pole is provided with an annular portion, terminating in proximity to the...
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WO/1981/002648A1 |
A low-loss reactor (1) is made up of a core having a coil (5), said core comprising an upper and a lower yoke (2, 3) and intermediary legs (4a, 4b, 4c). The two yokes and the legs are made up of laminations of plates, said laminations in...
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WO/1981/002363A1 |
An indicator for currents in e.g. a bus bar, which is adapted to be fastened directly to existing installations. The indicator consists of a coil (2) fastened to the bus bar (1) by means of a strap (4). The strap is made of a material ha...
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WO/1981/001218A1 |
An inductance coil having a core in the form of a closed loop, particularly of circular cylindrical shape, said core comprising a plurality of mutually superimposed layers of a continuous strip (1, 1', 11) of magnetic material. To obtain...
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WO/1980/002620A1 |
A microcrystalline thin strip for magnetic material with high magnetic permeability, which contains 7.0 to 9.6% Si, 5.5 to 7.5% Al, 0.3 to 3.0% Mo, 0.3 to 4.0% Ni, 0 to 0.5% Ca, the balance being substantially Fe, and which has a tensile...
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WO/1979/000490A1 |
A process for production of a wound magnetic circuit comprises, after the winding of the magnetic circuit (1), a double thermal treatment, that is first a heating (2) at a temperature slightly lower than the annealing temperature, then a...
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JP7468817B2 |
The present invention provides: a laminated magnetic member for a motor, the member having low core loss characteristics even in a high-frequency band; and a method for manufacturing said laminated magnetic member for a motor. Provided i...
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JP2024048976A |
An object of the present invention is to provide a coil device that is easy to assemble. [Solution] A coil device 100 is composed of two or more magnetic body pieces 10a, 30a that are arranged to face each other and have split surfaces 1...
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JP2024042395A |
[Problem] To reduce the weight and size of a power transmission coil unit. [Solution] A power transmission coil unit 100 comes into contact with the back surface of the substrate 1, which has a component mounting section 11 on the back s...
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JP2024034790A |
The present invention provides a powder compact for a magnetic core that can reduce the frequency of occurrence of defects such as cracks. [Solution] A compacted powder body 1 for a magnetic core is formed by compression molding a moldin...
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JP2024509030A |
An object of the present invention is to provide an electromagnetic steel sheet with improved adhesive strength by controlling the interfacial properties of a fusion layer formed between the electromagnetic steel sheets. The electromagne...
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JP7434164B2 |
A method for producing an Fe-based nanocrystalline alloy ribbon, the method including a step of supplying a molten Fe-based alloy onto a rotating chill roll, and rapidly solidifying the molten Fe-based alloy that has been supplied onto t...
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JP7434494B1 |
[Problem] To provide a magnetic substrate with excellent magnetic saturation characteristics and magnetic properties. A magnetic substrate in one embodiment includes a plurality of soft magnetic metal particles and a plurality of insulat...
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JP2024506431A |
The present invention has a molecular formula of Fe.aSibBcMdCuePf(Here, M is one or more of Nb, Mo, V, Mn, and Cr, and the molar content of the element is 6b15, 5c12, 0.5d3, (0.5e1.5, 0.5f3, and the remaining amount is Fe and impurities....
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JP2024016066A |
[Problems] Powder cores used at frequencies above 2 kHz and 5 to 100 kHz where high resistivity and low iron loss are essential, electrically insulating iron-based soft magnetic powder compositions, soft magnetic composite parts obtained...
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JP7427351B2 |
To easily achieve a reduction of noise that is generated from a stacked core.A stacked core is configured using at least two types of magnetic material plates having magnetostrictive time waveforms 320a-320c different from each other.SEL...
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JP7427034B2 |
A magnetic core comprises an anisotropic, composite material, which itself includes a matrix material (e.g., a dielectric, non-magnetic material, preferably a paramagnetic material), and magnetically aligned, ferromagnetic particles. The...
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JP7424549B1 |
Provided is a nanocrystalline alloy ribbon with high saturation magnetic flux density, high magnetic permeability, and excellent magnetic properties. Composition formula (Fe1-xAx)aSibBcCudMe, A is at least one element selected from Ni an...
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JP2024009070A |
The present invention provides requirements for efficiently producing laminated stacks (stator packages, rotor packages, etc.) in a production environment. The present invention provides a step of: A) providing a metal sheet (1) having a...
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JP2023553310A |
[summary] A planar magnetic core includes multiple ferromagnetic layers including multiple hard ferromagnetic bias layers and multiple soft ferromagnetic layers. Each ferromagnetic layer has one soft ferromagnetic layer or one hard ferro...
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JP7400578B2 |
The object of the present invention is to provide an alloy ribbon capable of having excellent adhesiveness between the alloy ribbons when a plurality of the alloy ribbons is stacked; and also, to provide a magnetic core using the alloy r...
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JP2023551689A |
The invention provides that the material layer (2) has a first layer (4), which layer includes a first material (6) in a planar area, and a second layer (6) along the planar area of this first material. materials (8) border, these two ma...
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JP2023549271A |
The present invention discloses soft magnetic powders and methods for their preparation and uses. [Solution] The preparation method includes (1) subjecting the first magnetic powder, the second magnetic powder, and the third magnetic pow...
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JP2023152790A |
To provide soft magnetic metal particles capable of providing a powder magnetic core having high initial magnetic permeability μ i.A soft magnetic metal particle includes: a core particle and an insulating film formed on the surface of ...
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JP2023152791A |
To provide a powder magnetic core having high initial permeability μ i.A powder magnetic core includes: soft magnetic metal particles; and a grain boundary phase present between the soft magnetic metal particles, and Si and Ti are prese...
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JP2023150133A |
To provide soft magnetic metal particles capable of providing a powder magnetic core having high heat resistance.Disclosed is a soft magnetic metal particle having a core particle and an insulating film formed on the surface of the core ...
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JP7360080B2 |
An electrical steel sheet used for a laminated core is an electrical steel sheet including an insulation coating 3 on a surface of a base steel sheet 2, the insulation coating being coated with a coating composition for an electrical ste...
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JP2023132116A |
To provide a low-loss and high-strength magnetic wedge and a rotary electric machine using the same.The magnetic wedge is used for a rotary electric machine in which a stator and a rotor oppose to each other across a gap surface. The mag...
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JP7348596B2 |
To provide a dust core that is molded at a temperature of 300°C or higher, has a high density, and in which crack generation is suppressed.A dust core includes magnetic nanoparticles with an average particle size of 1 to 300 nm and one ...
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JP7347634B2 |
To provide a manufacturing method of a laminate of a soft magnetic alloy thin ribbon, the laminate having excellent workability and handleability, and high productivity.A method of manufacturing a laminate of a soft magnetic alloy thin r...
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