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6852245 |
Process for producing granules for being molded into ferrite, granules for being molded into ferrite, green body and sintered body
A composition for producing granules for molding ferrite, which comprises a ferrite slurry at least having raw ferrite powders; an ethylene-modified polyvinyl alcohol whose ethylene modified amount...
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6849195 |
Composites with large magnetostriction
A magnetostrictive composite having large magnetostriction by virtue of 2-50 vol. % magnetostrictive particles dispersed throughout a resin matrix formed from a thermosetting resin, an amine curing...
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6815063 |
Magnetic fluid
There is disclosed a magnetic fluid medium which comprises a plurality of ferro- or ferri-magnetic particles, each of which particles has a largest dimension no greater than 100 nm, said particles...
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6811717 |
Magnetorheological compositions for use in magnetorheological fluids and method of preparing same
The subject invention provides a magnetorheological (MR) composition having improved resistance to oxidation and increased dispersability in a carrier fluid. The composition includes a plurality of...
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6793742 |
Preparation of bonded rare earth magnet-forming alloy and bonded rare earth magnet composition
An alloy powder for bonded rare earth magnets is prepared by melting an alloy consisting essentially of 20-30 wt % of Sm or a mixture of rare earth elements (inclusive of Y) containing at least 50...
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6793841 |
Magneto-resistive CrO2 polymer composite blend
A magneto-resistive CrO 2 polymer composite blend comprising 90-95% by weight of the polymer preferably Low Density Poly Ethylene, 5-10% by weight of magnetic filler preferably CrO 2 and 2-4% by...
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6790378 |
Coating composition having magnetic properties
The present invention includes coating composition having magnetic properties for application to a substrate. The coating composition includes a plurality of strontium and or barium hexaferrite...
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6788185 |
Powder core and high-frequency reactor using the same
A powder core is obtained by compaction-forming magnetic powder. The magnetic powder is an alloy comprising 1-10 wt % Si, 0.1-1.0 wt % O, and balance Fe. An insulator comprising SiO 2 and MgO as...
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6787059 |
Resin composition for bonded magnet and bonded magnet using the same
A resing composition for bonded magnet of the present invention comprises: magnetic particles; and an aromatic polyamide resin comprising an aromatic carboxylic acid and an aliphatic diamine,...
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6764607 |
Corrosion-resistant R-Fe-B bonded magnet powder for forming R-Fe-B bonded magnet and method for preparation thereof
A powder for forming a R—Fe—B bonded magnet, wherein an R compound, such as an R oxide, an R carbide, an R nitride or an R hydride, which is contained in a raw material powder such as a super...
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6764608 |
Fine spinel-type ferrimagnetic particles containing Fe-Co-Ni and process for producing the same
Fine spinel-type ferrimagnetic particles of the present invention have a composition represented by the formula (I): (CoO) x (NiO) y .n/2Fe 2 O 3 (I) wherein 2.0<n=Fe/(Co+Ni)<3.0,...
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6749767 |
Powder for high strength dust core, high strength dust core and method for making same
A mixed powder useful as a starting material for dust core comprises a uniform mixture of a soft magnetic powder and a binder resin so that the resultant dust core has an electric resistance...
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6737451 |
Thermally stable, high temperature, samarium cobalt molding compound
A magnetic compound is formed comprising: (1) 25% to 50% by volume of polyphenylene sulfide (PPS); (2) 50% to 70% by volume of coated samarium cobalt (the coating comprising 1 to 30% Kaolin by...
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6723914 |
Composite magnetic tape
There is provided a composite magnetic tape which can be easily applied irrespective of the inside or outside of an electronic equipment, prevent radiation of undesired electromagnetic waves from...
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6707361 |
Bonded permanent magnets
A flexible permanent magnet containing atomized, generally spherical rare earth magnet particles bonded in a binder resin including a nitrile rubber and precipitated amorphous silica. The bonded...
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6706795 |
Methods for the preparation of nanosized material particles
The present invention relates to a method for the production of particles of nano-materials being transition metals and alloys; metal oxides; and ceramic compositions having a small nanosize, i.e....
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6706206 |
Mouldable material and method for producing a weakly magnetic composite material therewith
A compression-molding material, in particular for producing a magnetically soft composite, including a raw powder exhibiting magnetically soft properties, a thermoplastic compound, and a lubricant....
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6682660 |
Ultrasonically generated paramagnetic polymer particles
A composite paramagnetic particle and method of making are provided. In one aspect of the invention, a particle comprising a multitude of submicron polymer bead aggregates covalently cross-linked...
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6679999 |
MR fluids containing magnetic stainless steel
A magnetorheological fluid formulation exhibiting consistently high yield stress during use. The MR fluid comprises martensitic or ferritic stainless steel particles prepared by a controlled water...
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6680000 |
Polyamide plastic magnetic material and magnet made of same
A polyamide plastic magnetic material excellent in fluidity is provided, and a plastic magnet made of the same is highly flexible with no deterioration in strength and does not crack during...
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6673244 |
Magnetic sludge suitable for use in wastewater treatment, method for preparing the same and method for wastewater treatment
A magnetic sludge which is suitable for use in waste water treatment, is easy to prepare, contains microbes and interacts with a magnetic field; and a method for treating waste water with improved...
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6660178 |
Magnetic powder and bonded magnet
Disclosed herein is a magnetic powder which can provide a bonded magnet having high mechanical strength and excellent magnetic properties. The magnetic powder has an alloy composition containing a...
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6652767 |
Composition for plastic magnet
In a composition for a plastic magnet, containing an Nd—Fe—B based alloy powder and a ferrite magnetic material powder mixed to a resin material, the Nd—Fe—B based alloy powder has particle...
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6641919 |
Resin-bonded magnet
A resin-bonded type magnet molded from a composition comprising a magnetic powder and a resin powder in which a resin binder comprises at least one unsaturated polyester resin cured product as the...
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6638367 |
Method of producing highly weather-resistant magnet powder, and product produced by the same method
The objects of the present invention are to provide a method of producing highly weather-resistant iron-based magnet powder containing a rare-earth element, particularly characterized by high...
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6627101 |
Magneto conductive polymer composite and process for the preparation of the same
A magnetic polymer composite comprising 60-90% by weight of the polymer, 10-40% by weight of magneto-resistive alloys and 5-30% by weight of the additive prepared by the process by dissolving...
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6620337 |
Composite magnetizer, composite magnetizer sheet, and methods of manufacturing the same
In a method of manufacturing a composite magnetizer, flat soft magnetic powder that strain is removed and magnetic coating of slurry regime consisting of a binder dissolved in a solvent are formed...
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6610404 |
High yield stress magnetorheological material for spacecraft applications
A magnetorheological fluid ( 32 ) having controlled-shaped particles ( 56,68 ), such as rod, prism, tetrahedral, and other regularly shaped particles. The regularly shaped particles ( 56, 68 )...
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6599608 |
Media employing substantially spherical magneto-plumbite ferrite particles
Substantially spherical magneto-plumbite ferrite (barium or strontium ferrite) particles are formed from well-dispersed ultra-fine substantially spherical iron-based oxide and/or hydroxide...
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6596096 |
Permanent magnet for electromagnetic device and method of making
Permanent magnets, devices including permanent magnets and methods for manufacture are described with the permanent magnet comprising, for example: iron-boron-rare earth alloy particulate having an...
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6596200 |
Electronic material composition, electronic parts and use of electronic material composition
Provided is an electronic material composition which is capable of forming a cured film exhibiting a desired glass transition temperature, a desired stiffness modulus in a rubbery state and a...
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6590385 |
Variable reluctance sensor assembly with magnetic spool
A sensor assembly includes a spool that has magnetic filaments incorporated therein. The magnetic filaments are magnetized to create a magnetic flux around the spool. A coil is wound around the...
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6565673 |
Sm(Co, Fe, Cu, Zr, C) compositions and methods of producing same
Carbon addition to the rapidly solidified, preferably melt spun, alloy system of Sm(Co, Fe, Cu, Zr) provides for good isotropic magnetic properties. Importantly, these alloys are nanocomposite in...
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6558565 |
Composite magnetic material
A composite magnetic body used for a choke coil, etc. is formed by compression molding of a mixture of magnetic alloy powder containing iron (Fe) and nickel (Ni) as the main component, an...
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6555018 |
Bonded magnets made with atomized permanent magnetic powders
The invention relates to magnets, particularly bonded magnets, of the Re—Fe—B type made from atomized magnetic powders and to methods of producing the powders and the magnet. The magnetic...
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6537463 |
Resin-bonded magnet, its product, and ferrite magnet powder and compound used therefor
A resin-bonded magnet composed substantially of (a) an R—T—N-based magnetic powder having a basic composition of R α T 100−α−β N β , wherein R is at least one selected form the group...
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6527971 |
Rare-earth bonded magnet, rare-earth bonded magnet composition, and method of manufacturing the rare-earth bonded magnet
In a rare-earth bonded magnet of the invention, magnetic powder containing a rare-earth element is bonded together by a binding resin. The rare-earth bonded magnet may further contain an...
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6527972 |
Magnetorheological polymer gels
Magnetorheological materials are provided comprising magnetic particles, a polymeric gel and a carrier material. The polymerization of the gel is preferentially accomplished in the presence of the...
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6521140 |
Composite magnetic body and electromagnetic interference suppressing body using the same
In a composite magnetic body comprising flat soft magnetic powder dispersed in an organic binding agent, biodegradable plastic is used as the organic binding agent so that the composite magnetic...
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6503762 |
Magnetic carrier, preparation thereof, and method of extraction of nucleic acid
A novel magnetic carrier is provided which comprises particulate silica containing a magnetic material, having polyacrylamide on the surface thereof in an amount ranging from 0.3 to 5 mmol/g in...
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6503415 |
Magnet powders and isotropic rare-earth bonded magnets
Disclosed herein is a magnet powder which can provide a magnet having a high magnetic flux density and excellent magnetizability and reliability. The magnet powder is composed of an alloy...
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6494968 |
Lamellar rare earth-iron-boron-based magnet alloy particles, process for producing the same and bonded magnet produced therefrom
Lamellar rare earth-iron-boron-based magnet alloy particles for a bonded magnet, having an intrinsic coercive force (iHc) of not less than 3.5 kOe, a residual magnetic flux density (Br) of not less...
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6478891 |
Ribbon shaped magnet material magnetic powder and rare earth bonded magnet
The ribbon shaped magnet material (quenched ribbon 8 ) according to the present invention is obtained by ejecting a molten liquid 6 of an alloy containing rare earth elements and transition...
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6478889 |
Iron-base alloy permanent magnet powder and method for producing the same
The method for producing iron-base alloy permanent magnet powder of the present invention includes the steps of: chilling an Fe—R—B molten alloy by melt quenching, thereby forming a rapidly...
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6476110 |
Rubber composition containing solid magnetizable particles of greater stiffness than the rubbery compounds
Rubber compositions filled with an unusually high content of solid magnetizable particles such as iron oxide or strontium ferrite but having great resistance to crack initiation and crack growth....
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6475404 |
Instant magnetorheological fluid mix
Magnetorheological fluid concentrates are provided which contain a substantially dry mixture of magnetic-responsive powder and a thixotropic agent. The concentrates may be mixed with an aqueous or...
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6468678 |
Conformable magnetic articles for use with traffic bearing surfaces methods of making same systems including same and methods of use
Magnetic, conformable articles for use with traffic bearing surfaces are disclosed which comprise an organic binder having magnetic particles distributed therein. The articles may be employed in...
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6468440 |
Magnet powder and method for producing the same, and bonded magnet using the same
Magnet powder has a composition expressed by (R 1 X R 2 Y B Z T 100−X−Y−Z ) 100−Q N Q (in formula, R 1 is at least one kind of element selected from rare earth elements, R 2 is at least...
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6464894 |
Magnetic film and a method for the production thereof
The invention relates to hard magnetic films made of a polymer matrix and hard magnetic powder particles distributed therein. The films have a thickness of preferably 100 to 500 μm and are...
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6451221 |
Extrudable magnet compound with improved flow properties
An extrudable magnet composition includes composite particles including thermoplastic resin and magnetic material, and a surface additive selected from silicon dioxide particles and ferrite...
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