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7387847 |
Ferrite substrate, thin-film common mode filter using the substrate, thin-film common mode filter array using the substrate and manufacturing method of the substrate
A ferrite substrate for thin-film inductors is provided by means of blending raw materials to meet a composition of di-iron trioxide (Fe 2 O 3 ): 40 to 55 mol %, nickel oxide (NiO): 5 to 35 mol %,...
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7344587 |
Magnetic ink tissue markings
The invention provides tissue markings (such as tattoos) comprising magnetic particles, e.g., magnetite, and methods for making and altering, e.g., removing them.
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7332101 |
Permanently linked, rigid, magnetic chains
One aspect of the present invention relates to a permanently linked, rigid, magnetic chain of particles prepared by sol-gel methods. A second aspect of the present invention relates to a method of...
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7326360 |
Cobalt ferrite based magnetostrictive materials for magnetic stress sensor and actuator applications
Magnetostrictive material based on cobalt ferrite is described. The cobalt ferrite is substituted with transition metals (such manganese (Mn), chromium (Cr), zinc (Zn) and copper (Cu) or mixtures...
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7303679 |
Oil spill recovery method using surface-treated iron powder
A method of recovering spilled hydrocarbon fluids from a body of water utilizing the increased oleophilic properties of reacted iron particles suspended in a magnetorheological (MR) fluid. The iron...
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7297323 |
Method and apparatus for manufacturing fine particles
A method of manufacturing fine particles of the invention includes introducing a reactive gas flow containing a fine particle source material into a reactor from one side, growing fine particles in...
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7232557 |
Method for preparation of magnetic spinel ferrites from layered double hydroxide precursors
The invention describes a method of preparing magnetic ferrites from layered precursors in which Fe 2+ is first introduced into the layers of layered double hydroxides (LDHs) in order to prepare...
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7226544 |
Magnetite particles
Magnetite particles (and their manufacturing method) that enable suppression of blooming caused because of their large coercive force when used as magnetic toner, exert a light environment load,...
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7208134 |
Bioprocesses enhanced by magnetic nanoparticles
One aspect of the present invention relates to magnetic nanoparticles colloidally stabilized in aqueous milieu by association with an organic phase. The organic phase may be either a fluorinated...
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7198732 |
Rare earth metal compounds and mixtures of these
Rare earth metal compounds are described which, due to their luminescence when irradiated with UV light, are suitable in particular for the marking of security-relevant items, such as documents or...
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7147796 |
Iron oxide particles and method for production thereof
Iron oxide particles having the surface thereof coated with a layer of a complex iron oxide containing Al and Mg are disclosed. The total content of Al and Mg in the complex iron oxide layer is 0.1...
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7144626 |
Magnetic iron oxide particles and magnetic toner using the same
There are provided magnetic iron oxide particles having an average particle diameter (Dp 50 ) of primary particles of 0.05 to 0.3 μm, an average particle diameter (Da 50 ) of secondary particles...
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7101489 |
Composite magnetic material and a method for producing the same
A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic...
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7070707 |
Magnetorheological composition
The invention provides a magnetorheological composition having reduced off-state forces and good performance. Specifically, this invention is directed to a magnetorheological composition that may...
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7011764 |
Method for producing a magnetic device
A magnetic device and method for making it involve a magnetic device specifically constructed of grains in a matrix. The matrix may be cement or plaster. The grains have an average diameter that is...
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6992155 |
Method for producing magnetic particle, magnetic particle and magnetic material
A method for producing a magnetic particle forming a magnetic material for absorbing electromagnetic waves comprises the steps of mixing an organometallic complex or a metal salt with a chain...
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6974543 |
Magnetic-energy-releasing molecular rearranging structure
A magnetic-energy-releasing molecular rearranging structure includes an amount of magnetic powder, which is molded into a magnetic member in the form of a ball, a mass, or a flat piece, and having...
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6972095 |
Magnetic molecules: a process utilizing functionalized magnetic ferritins for the selective removal of contaminants from solution by magnetic filtration
A decontamination system uses magnetic molecules having ferritin cores to selectively remove target contaminant ions from a solution. The magnetic molecules are based upon a ferritin protein...
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6962685 |
Synthesis of magnetite nanoparticles and the process of forming Fe-based nanomaterials
A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200–360 C is...
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6908568 |
Preparation of oxide magnetic material and oxide magnetic material
An oxide magnetic material is prepared by wet molding in a magnetic field a slurry containing a particulate oxide magnetic material, water and a polyhydric alcohol having the formula: C n (OH) n H...
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6893581 |
Composite magnetic material and a method for producing the same
A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic...
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6872325 |
Polymeric resin bonded magnets
Briefly, in accordance with one embodiment of the present invention, a process for making a magnetic composite which comprises providing a polymeric resin and a magnetic powder, the magnetic powder...
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6872251 |
Method for manufacturing single crystal ceramic powder, and single crystal ceramic powder, composite material, and electronic element
A method for manufacturing single crystal ceramic powder is provided. The method includes a powder supply step for supplying powder consisting essentially of ceramic ingredients to a heat treatment...
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6855760 |
Detachable adhesive compounds
This invention relates to adhesive compositions of which the binder system contains nanoscale particles with ferromagnetic, ferrimagnetic, superparamagnetic or piezoelectric properties. The...
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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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6849196 |
Process for the preparation of magnetite particles and their use
The invention relates to a process for the preparation of magnetite particles and to their use.
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6844426 |
Magnetic carrier capable of binding with protein and purification method of protein utilizing the magnetic carrier
The present invention provides a strikingly convenient novel purification method of protein, as compared to conventional methods, which affords automation and high throughput, and a material...
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6830694 |
Method for separating components from liquid and gaseous media with nanocomposites
Components are separated from liquid or gaseous media with the aid of a nanocomposite comprising nanoparticles in a matrix, wherein the liquid or gaseous medium is brought into contact with the...
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6793842 |
Single-crystal ferrite fine powder
A ferrite fine powder having a mean particle size of 0.1 to 30 μm and made of spherical single-crystal particles. The ferrite fine powder has superior physical properties and excellent magnetic...
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6790379 |
Magnetic ferrite composition and process of production thereof
A magnetic ferrite composition including at least one of Mg, Ni, Cu, Zn, Mn, and Li and having a content of carbon within a predetermined range, for example, over 9.7 weight ppm to less than 96...
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6787058 |
Low-cost MR fluids with powdered iron
An MR fluid formulation comprising water-atomized iron powder dispersed in a liquid vehicle, wherein the atomized iron powder contributes to a higher magnetic effect, a lower viscosity and...
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6767396 |
Process for the preparation of aqueous magnetic ink character recognition ink-jet ink compositions
A process for preparing an aqueous ink-jet ink composition for MICR applications is provided comprising preparing a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition,...
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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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6761747 |
Dispersion containing pyrogenically manufactured abrasive particles with superparamagnetic domains
An aqueous dispersion containing abrasive particles comprises abrasive particles having superparamagnetic metal oxide domains in a non-magnetic metal oxide or non-metal oxide matrix. The abrasive...
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6737012 |
Powder for magnetic ferrite, magnetic ferrite, multilayer ferrite components and production method thereof
A method including mixing powders of at least one of MgO, Mg(OH) 2 , and MgCO 3 , and powders of Fe 2 O 3 , CuO and ZnO, pre-sintering the mixed powder at 900° or lower, milling the pre-sintered...
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6699332 |
Method of producing a magnetic recording medium
A method of producing a magnetic recording medium comprising the steps of providing a substrate having a layer of a non-magnetic material that can be converted into a magnetic state by annealing,...
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6695985 |
Electromagnetic wave suppressor sheet
An electromagnetic wave suppressor sheet formed into a sheet-like shape out of a material made of synthetic resin in which powder of conjugated magnetic particles surface-treated with an insulating...
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6689455 |
Method of producing hexagonal ferrite and magnetic recording medium using said hexagonal ferrite
A method of producing hexagonal (system) ferrite, wherein the hexagonal (system) ferrite having an average tabular diameter of 10 to 40 nm and a coercive force (Hc) of 135 to 400 kA/m is treated...
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6689287 |
Ferroelectric and ferromagnetic material having improved impedance matching
The subject invention includes a composite material comprising a ferroelectric material and a ferromagnetic material having a loss factor (tan δ) for the composite material which includes a...
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6682834 |
Magnetic storage medium having a high recording density
A magnetic storage medium includes a magnetic layer of a Co alloy of a system Co—Cr—Pt—B—Cu, wherein the magnetic layer has a thickness t and a remnant magnetic flux density B r satisfying...
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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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6666991 |
Fluorescent or phosphorescent composition
A fluorescent or luminous composition, comprising a multilayered film-coated powder having at least two coating films on a base particle, and a fluorescent or luminous substance; the composition,...
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6660189 |
Production process of MN-Zn ferrite
The present invention provides a production process of a Mn—Zn ferrite that enables wastes of sintered cores to be recycled without serious difficulties in sintering. The production process...
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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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6630084 |
Method of making ferrite material powder by spray pyrolysis process and method of producing ferrite magnet
A method of making a magnetoplumbite-type ferrite material powder includes the step of preparing the ferrite material powder by spraying a mixed chloride solution, in which a chloride of iron and a...
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6623879 |
Soft-magnetic hexagonal ferrite composite particles, and green sheet using the same and soft-magnetic hexagonal ferrite sintered ceramics
Soft-magnetic hexagonal ferrite composite particles composed of 100 parts by weight of soft-magnetic hexagonal ferrite particles containing a Z-type ferrite, Y-type ferrite or W-type ferrite as a...
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6623878 |
Sintered ferrite body and laminated ferrite component including same
A sintered ferrite body is obtained by baking a raw ferrite material including about 0.1% to about 30% by weight of a glass having, as a single material, and having a specific resistance ρ (Ω) of...
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6569346 |
Ferrite with high permeability and high dielectric constant and method for making the same
A ferrite with a high permeability and a high dielectric constant is introduced. Raw material powders, such as TiO 2 , Fe 2 O 3 and the oxide of Mn, Ni, Cu, Mg, Li or Zn is prepared and combined...
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6562533 |
Magnetites and their use in producing toners
This invention relates to magnetite particles with a mean particle size of 0.1 to 0.3 μm, a specific surface area of 6 to 9 m 2 /g, a coercive force of 80 to 110 Oe, a residual magnetization of 13...
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