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WO/2012/014290 |
Cold roll a silicon steel sheet (1) containing Si. Then, bring about primary re-crystallisation by decarburisation annealing (3) the silicon steel sheet (1). Then, roll up the silicon steel sheet (1) and obtain a steel sheet coil (31). T...
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WO/2012/013086 |
A high performance sintered NdFeB magnet and the manufacturing method of the same are provided. The manufacturing method comprises the following steps: (1) forming R-Fe-B-Al (wherein R represents one or more elements selected from rare e...
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WO/2012/011286 |
Provided is an electromagnetic steel sheet with a semi-organic insulating coating film in which a semi-organic insulating coating film formed from inorganic components and an organic resin comprises, as the inorganic components, a Zr com...
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WO/2012/011464 |
Provided are: a Z-type ferrite-based magnetic material which can be synthesized at low temperatures; and a method for producing a magnetic material, by which the Z-type ferrite-based magnetic material can be efficiently produced. A first...
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WO/2012/010200 |
The present application relates to a method for preparing stoichiometrically pure maghemite iron superparamagnetic nanoparticles. The method for preparing maghemite (γ-Fe2O3) superparamagnetic nanoparticles disclosed in the present appl...
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WO/2012/008623 |
A process for producing a rare-earth magnet represented by neodymium magnet (Nd2Fe14B) is provided, in which use is made of a heat treatment method that can heighten the magnetic properties, in particular, coercive force. Also provided i...
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WO/2012/006752 |
The invention relates to a magnetic field generator (10) comprising an assembly of anisotropic permanent magnets (30) that define air gaps (40) within which the magnetic flux is concentrated. The permanent magnet assembly consists of two...
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WO/2012/008426 |
A method for producing R-T-B-based sintered magnets includes: a step for preparing R-T-B-based sintered magnet bodies (1); a step for preparing RH diffusion sources that contain a heavy rare earth element (RH) (comprising Dy and/or Tb) a...
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WO/2012/008416 |
Disclosed is a treatment device equipped with: a diffusion part (10) which rotates while heating an R-T-B sintered magnet (1) and an RH diffusion source (2) comprising the metal or an alloy of a heavy rare-earth element (RH) (at least Dy...
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WO/2012/004236 |
The invention relates to lamina-like iron pigments produced by the deformation of carbonyl iron powder, the lamina-like iron pigments having a size distribution of a D-50 value in a range of 3 to 16 μm and a size-to-thickness ratio in a...
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WO/2012/003702 |
An R-Fe-B based magnet having gradient electrical resistance and a method for producing the same are provided. The magnet has an exterior layer (G) and a main body layer (H), and the exterior layer (G) is joined with the main body layer ...
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WO/2012/002531 |
Disclosed are: an alloy cast slab for a rare earth sintered magnet, which has high rare earth component yield between before and after pulverization, while having uniform particle size after pulverization; and a method which is capable o...
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WO/2012/002774 |
The present invention relates to a method for preparing R-Fe-B-based rare earth magnetic powder for a bonded magnet, to magnetic powder prepared by the method, to a method for producing a bonded magnet using the magnetic powder, and to a...
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WO/2012/002412 |
Disclosed is a method of producing a surface-modified rare earth sintered magnet with having excellent magnetic characteristics and having extreme corrosive resistance even in environments with fluctuating temperature and humidity. The d...
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WO/2012/002059 |
Provided is an R-T-B type rare earth permanent magnet which can attain high coercive force (Hcj) without enhancing the Dy concentration of an R-T-B type alloy and in which magnetization (Br) reduction, which is due to the addition of Dy,...
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WO/2012/001943 |
Disclosed is a composite magnetic material produced through a step of mixing a metal magnetic powder with an insulating binder to produce a mixed powder, a step of press-molding the mixed powder to produce a molded material, and a step o...
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WO/2012/001952 |
Disclosed is an oriented electromagnetic steel plate with magnetic domain refinement by laser irradiation or electron beam irradiation, which achieves excellent low-noise and low-iron loss characteristics when assembled on an existing tr...
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WO/2012/002060 |
Provided is an R-T-B based rare earth permanent magnet wherein a high coercivity (Hcj) can be achieved without increasing the Dy concentration in an R-T-B based alloy and deterioration in magnetization (Br), said deterioration being caus...
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WO/2012/000294 |
A neodymium-iron-boron magnet having gradient coercive force and a method for producing the same are provided. The neodymium-iron-boron magnet has at least two neodymium-iron-boron material layers having different coercive forces, includ...
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WO/2012/001957 |
The magnetic domain is segmented by exposure to a laser and an oriented magnetic steel sheet that meets recent demands for reduced iron loss can be obtained by limiting the amount of nitrogen (N) within a forsterite coating, on an orient...
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WO/2012/001953 |
When manufacturing a grain-oriented electromagnetic steel sheet provided with a forsterite film and tension coating on the surface thereof according to the present invention: (1) the Cr content of the grain-oriented electromagnetic steel...
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WO/2011/161499 |
The invention relates to a method and associated apparatuses (100) for the detection of magnetic particles (MP) in a sample chamber (111). The method comprises the determination of a "particle-parameter" that is related to the amount of ...
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WO/2011/158519 |
Disclosed is a production method for an oriented electromagnetic steel plate, which uses as a raw material a steel slab having a predetermined component composition and which uses cold rolling two or more times. In said production method...
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WO/2011/156895 |
Magnetic nanoparticles are provided that have a superparamagnetic core and a nanoporous silica shell surrounding the core. The shell is functionalized with amine or S- nitrosothiol groups both inside and outside the nanopores. A process ...
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WO/2011/155183 |
A non-oriented electromagnetic steel sheet having small degrees of variations in magnetic properties in a coil provided therein and exhibiting excellent magnetic properties at every part of the coil can be produced by carrying out a heat...
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WO/2011/155494 |
Provided is an iron group-based soft magnetic powder which is used in dust cores of choke coils, reactor coils and the like, and which exhibits higher magnetic properties. Specifically provided is a generally-used iron group-based alloy ...
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WO/2011/150671 |
A magnetic composite, preparation method and use thereof are provided. The magnetic composite is multilayer core-shell architecture with Fe3O4 nanoparticle cores and an A-b-poly(ethylene glycol)-b-poly(glycerol mono(meth)acrylate) triblo...
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WO/2011/148826 |
Disclosed is a soft magnetic powder for obtaining a dust core that has low hysteresis loss especially in a high temperature range. Specifically disclosed is a soft magnetic powder that is an assembly of composite magnetic particles each ...
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WO/2011/148849 |
Disclosed is a process for producing a unidirectional electromagnetic steel sheet, which employs so-called "low-temperature slab heating" that involves a nitriding treatment (step S7), wherein the temperature at which a finishing rolling...
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WO/2011/145477 |
Disclosed are: a powder for a magnetic member, which has excellent moldability and is not easily oxidized; a powder compact which is obtained from the powder; and a magnetic member which is suitable as a material for a magnetic body such...
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WO/2011/145674 |
R-T-B permanent magnetic powder is manufactured by the HDDR process, said magnetic powder having an average crystal grain size of 0.1 μm to 1 μm and an aspect ratio (major axis/minor axis) for the crystal grains of not more than 2 (Ste...
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WO/2011/145582 |
Disclosed is a dust core and a method of manufacturing thereof, wherein, even when the surface of a heat treatment compact is ground, insulation between soft magnetic particles is maintained at the grinding face during that grinding proc...
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WO/2011/142275 |
Provided are a permanent magnet and a method for producing a permanent magnet, wherein it is possible to produce metal alkoxide by means of a simplified production facility and manufacturing process, and to cut manufacturing costs. An el...
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WO/2011/142321 |
An NdFeB system sintered-magnet manufacturing apparatus, which fills NdFeB system alloy powder into a mold cavity of a mold with a prescribed packing density, and conducts magnetic field orientation and sintering with the alloy powder fi...
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WO/2011/138243 |
The invention relates to a dispersion at least containing particles containing at least one magnetic iron oxide as component A and a solvent mixture as component B comprising (B1) 5 to 95 wt % of at least one organic solvent LM which can...
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WO/2011/138975 |
The present invention provides a composite particle comprising as a core a magnetic iron-oxide particle, a gold shell on said magnetic iron-oxide particle, and a poly(alkylene glycol) coating on said gold shell, wherein said poly(alkylen...
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WO/2011/134179 |
A component of a rare earth permanent magnet material and a manufacturing method thereof are provided. The rare earth permanent magnet material is Re (x) Fe (100-x-z-a-b-c) B (z) Nb (a) Al (b) M (c) at atom percentage, wherein x=12-16, z...
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WO/2011/136223 |
Provided is a coating apparatus for grain-boundary diffusion treatment, wherein, when conducting grain-boundary diffusion treatment in the manufacturing of an NdFeB system sintered magnet, powder rhodium can be coated onto a prescribed f...
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WO/2011/136198 |
Provided is a coil-type electronic component formed using a magnetic material which can be produced at low cost and combines high magnetic permeability with high saturated magnetic flux density. The coil-type electronic component compris...
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WO/2011/134178 |
A method for manufacturing high performance neodymium-iron-boron (Nd-Fe-B) permanent magnetic material is provided. The method involves the following steps: mixing the raw materials including 7.0-15.0 atom.% Nd or Pr-Nd alloy, 5.5-8.0 at...
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WO/2011/132829 |
The present invention relates to a magnetic refrigerator using magnetic refrigeration characteristics, wherein heat is radiated when a magnetic field is applied to a magnetic material, but the temperature is decreased when the magnetic f...
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WO/2011/129366 |
Provided are a powder for magnets which gives a rare-earth magnet having excellent magnetic properties and which has excellent compactibility, a process for producing the powder, a powder compact, and a rare-earth/iron/boron alloy materi...
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WO/2011/128585 |
The present invention relates to a method for manufacturing particles such as magnetic micro- or nanoparticles. Said manufacturing method comprises the following steps: depositing a layer of a first sacrificial material on a substrate; d...
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WO/2011/125589 |
Disclosed are a permanent magnet and a manufacturing method for the permanent magnet in which V, Mo, Zr, Ta, Ti, W, or Nb contained in an organometallic compound can be segregated to the grain boundaries of a magnet. An organometallic co...
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WO/2011/125595 |
Disclosed are a permanent magnet and a manufacturing method for the permanent magnet in which the grain growth of magnet grains having a single-domain particle is inhibited during sintering, and in which the magnetic properties are impro...
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WO/2011/125584 |
Disclosed are a permanent magnet and a manufacturing method for the permanent magnet in which gaps are not formed between the main phase and the grain-boundary phase of the magnet after sintering, and in which the entire magnet can be de...
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WO/2011/125914 |
Provided are: a metallic magnetic powder which comprises metallic magnetic particles reduced in particle volume and which, when mixed with organic substances including resins, has improved affinity therefor and in which the metallic magn...
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WO/2011/126119 |
A powder magnetic core comprises a metal powder and an insulating layer comprising a particulate metal oxide and formed between the particles of the metal powder, wherein the insulating layer contains Ca, P, O, Si and C as elements. Thus...
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WO/2011/125594 |
Disclosed are a permanent magnet and a manufacturing method for the permanent magnet in which the entire magnet can be densely sintered and the loss of magnetic properties can be reduced. An organometallic compound solution, to which an ...
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WO/2011/125593 |
Disclosed are a permanent magnet and a manufacturing method for the permanent magnet in which: the amount of carbon contained in the magnet grains can be pre-reduced before sintering, even when using wet milling; gaps are not formed betw...
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