| Entries |
| Document | Title | Date |
|---|
| 20090045374 | ELECTRICALLY CONDUCTIVE, MAGNETIC COMPOSITE MATERIAL, PROCESS FOR ITS PRODUCTION, AND ITS USE - Electrically conductive, magnetic composite material, comprising
| 02-19-2009 |
| 20090108229 | MAGNETITE POWDER AND METHODS OF MAKING SAME - Magnetite powders are manufactured by first forming a precursor mixture containing iron atoms bonded to organic control agent molecules. Thereafter, magnetite is formed by (i) causing or allowing the iron atoms in the precursor mixture to form iron particles and (ii) reducing the iron atoms using a reducing agent. The magnetite powders obtained using the methods of the invention are superparamagnetic and can have very low densities. In one embodiment, the magnetite powders include a carbon coating on the magnetite particles which makes the particles resistant to being oxidized. | 04-30-2009 |
| 20090166578 | COMPOSITE PARTICLE AND PRODUCTION METHOD THEREOF - There is provided a method of producing composite particles each comprising a polymer compound and solid particles, the method including: (1) mixing a first liquid containing a monomer and an organic solvent with solid particles to prepare a mixed solution; (2) preparing a second liquid; (3) mixing the mixed solution with the second liquid to form an emulsion; (4) fractionating the first liquid from a dispersoid of the emulsion; and (5) polymerizing the monomer remaining in the dispersoid after the fractionation. Composite particles each comprising solid particles uniformly at a high ratio and having excellent size uniformity and dispersibility can be obtained thereby. | 07-02-2009 |
| 20090194733 | SUPERPARAMAGNETIC TRANSITION METAL IRON OXYGEN NANOPARTICLES - Thermal treatment of transition metal ferrite nanoparticles at moderate temperatures provides materials with desirable magnetic properties. A | 08-06-2009 |
| 20100163779 | NI-ZN-CU FERRITE PARTICLES, GREEN SHEET COMPRISING THE NI-ZN-CU FERRITE PARTICLES AND NI-ZN-CU FERRITE SINTERED CERAMICS - A Ni—Zn—Cu ferrite material having excellent DC bias characteristics is provided by adding zinc silicate thereto. The above problem can be solved by Ni—Zn—Cu ferrite particles which comprise a spinel-type ferrite and zinc silicate, which have a composition comprising 36.0 to 48.5 mol % of Fe | 07-01-2010 |
| 20100171065 | MAGNETORHEOLOGICAL MATERIALS, METHOD FOR MAKING, AND APPLICATIONS THEREOF - A magnetorheological material comprises a magnetic particle and a ceramic material, wherein the magnetorheological material is in a dried form and further wherein a portion of the ceramic material is in the form of a nanocrystalline coating over the entire exterior surface of the magnetic particle and another portion of the ceramic material is in the form of a free nanocrystal. A magnetorheological material comprises a magnetic particle having a ceramic material coating over an external surface thereof as a result of a coating process, and a free nanocrystal of the ceramic material in the form of a residual by-product of the coating process. A sol-gel process for making a magnetorheological product comprises providing a sol of a desired ceramic coating material; combining a desired quantity of carbonyl iron (CI) particles with the sol to coat the CI particles with the ceramic coating material; creating a resulting quantity of nanocrystalline ceramic material-coated CI particles and a quantity of free nanocrystals of the ceramic material; and, drying the resulting quantity of coated CI particles and free nanocrystals to a moisture content equal to or less than 2 wt %. | 07-08-2010 |
| 20100200796 | COMPOSITION FOR ELECTROMAGNETIC WAVE SUPPRESSION AND HEAT RADIATION AND METHOD FOR MANUFACTURING COMPOSITION FOR ELECTROMAGNETIC WAVE SUPPRESSION AND HEAT RADIATION - A composition for electromagnetic wave suppression and heat radiation includes: a matrix composed of a high molecular material or a low molecular material; and a magnetic particle filled in the matrix upon mixing a magnetic powder having a relation of {(tap density)/density}≧0.58 with the matrix. | 08-12-2010 |
| 20100224823 | SUPERPARAMAGNETIC COLLOIDAL NANOCRYSTAL STRUCTURES - Monodisperse colloidal nanocrystal clusters of magnetite (Fe | 09-09-2010 |
| 20100258759 | Nanostructured Metal Oxides Comprising Internal Voids and Methods of Use Thereof - The present invention relates to nano structures of metal oxides having a nanostructured shell (or wall), and an internal space or void. Nanostructures may be nanoparticles, nanorod/belts/arrays, nanotubes, nanodisks, nanoboxes, hollow nanospheres, and mesoporous structures, among other nanostructures. The nanostructures are composed of polycrystalline metal oxides such as SnO2. The nanostructures may have concentric walls which surround the internal space of cavity. There may be two or more concentric shells or walls. The internal space may contain a core such ferric oxides or other materials which have functional properties. The invention also provides for a novel, inexpensive, high-yield method for mass production of hollow metal oxide nanostructures. The method may be template free or contain a template such as silica. The nanostructures prepared by the methods of the invention provide for improved cycling performance when tested using rechargeable lithium-ion batteries. | 10-14-2010 |
| 20110031433 | THERMOSETTING EPOXY RESIN, A COMPOSITE MATERIAL, A METHOD OF FORMING A COMPOSITE MATERIAL ARTICLE, A MOULD AND A METHOD OF MAKING A MOULD - A thermosetting epoxy resin includes particles of magnetite and conductive carbon to act as microwave susceptors. A composite material comprises a thermosetting epoxy resin matrix phase with particles of magnetite and a carbon fibre reinforcement phase. A mould for a composite article comprises a mould body made from a material that is substantially transparent to microwaves with a surface or rear surface layer including microwave radiation absorbing material. | 02-10-2011 |
| 20110147643 | METHOD FOR PRODUCING NICKEL-MANGANESE-COBALT SPINEL FERRITE HAVING LOW PERMEABILITY LOSS AND NICKEL-MANGANESE-COBALT SPINEL FERRITE PRODUCED THEREBY - Disclosed herein is a method for producing a spinel ferrite which has a low permeability loss and a low dielectric loss so that the spinel ferrite can be widely used as a material for high-frequency (MHz) electronic components, and a spinel ferrite produced thereby. The method for producing the spinel ferrite comprises the steps of: providing nickel oxide, cobalt oxide, manganese oxide and iron oxide; wet-mixing the nickel oxide, the cobalt oxide, the manganese oxide and the iron oxide in methanol to obtain a mixture; collecting powder from the mixture and drying the collected powder; grinding the dried powder; and heat-treating the dried powder, thereby producing a nickel-manganese-cobalt spinel ferrite having a low permeability loss and a low dielectric loss. The nickel-manganese-cobalt spinel ferrite can be widely as a material for RF electronic components, and when it is applied to an antenna, it can reduce the length of the antenna and improve the bandwidth, efficiency and performance of the antenna. | 06-23-2011 |
| 20110175014 | MAGNETIC PARTICLE AND METHOD OF PREPARING THE SAME, AND MAGNETIC RECORDING MEDIUM - An aspect of the present invention relates to a magnetic particle obtained by heat-treating a hexagonal ferrite magnetic material in reducing atmosphere containing hydrocarbon gas. | 07-21-2011 |
| 20110272623 | FORMULATION OF HYDROPHOBIZED MAGNETITE - The present invention relates to a dispersion at least comprising particles comprising at least one magnetic iron oxide as component A and a solvent mixture as component B comprising (B1) 5% to 95% by weight of at least one water-miscible organic solvent LM as component B1 and (B2) 5% to 95% by weight of water as component B2, the sum of components B1 and B2 making 100% by weight, and to a method for producing a dispersion of this kind, comprising at least the steps (I) mixing particles comprising at least one magnetic iron oxide with at least one water-miscible organic solvent LM and water, (II) homogenizing the mixture from step (I), where a shearing energy of at least 2 kW/m | 11-10-2011 |
| 20120056121 | PROCESS FOR PREPARATION OF NANOPARTICLES FROM MAGNETITE ORE - A process for making magnetite nanoparticle dispersions by reacting the surface groups of the destructured magnetite ore with carboxyl acid groups of the long chain carboxylic acid to form nanoparticles containing bound stabilizer and dispersing the nanoparticles in alcoholic solvent. | 03-08-2012 |
| 20120161062 | FERRITE MAGNETIC MATERIAL - An object of the present invention is to provide a ferrite magnetic material which can provide a permanent magnet retaining high Br and HcJ as well as having high Hk/HcJ. The ferrite magnetic material according to a preferred embodiment is a ferrite magnetic material formed of hard ferrite, wherein a P content in terms of P | 06-28-2012 |
| 20120168671 | VOLUME-LABELED NANOPARTICLES AND METHODS OF PREPARATION - Compositions comprising nanosized objects (i.e., nanoparticles) in which at least one observable marker, such as a radioisotope or fluorophore, is incorporated within the nanosized object. The nanosized objects include, for example, metal or semi-metal oxide (e.g., silica), quantum dot, noble metal, magnetic metal oxide, organic polymer, metal salt, and core-shell nanoparticles, wherein the label is incorporated within the nanoparticle or selectively in a metal oxide shell of a core-shell nanoparticle. Methods of preparing the volume-labeled nanoparticles are also described. | 07-05-2012 |
| 20130099153 | HYBRID MATERIAL COMPRISING GRAPHENE AND IRON OXIDE, METHOD FOR MANUFACTURING THE SAME, AND APPARATUS FOR TREATING WASTE WATER USING THE SAME - A hybrid material including graphene and iron oxide, a method of manufacturing the same, and an apparatus for treating waste water using the same are provided. A hybrid material having magnetic properties and high dispersibility and including graphene and iron oxide may be effectively used for removing a heavy metal in waste water. | 04-25-2013 |
| 20130214198 | SOFT MAGNETIC POWDER, METHOD OF MANUFACTURING THE SAME, NOISE SUPPRESSION SHEET USING THE SAME, AND METHOD OF MANUFACTURING THE SAME - In order to provide a noise suppression sheet whose imaginary part magnetic permeability μ″, representing a magnetic loss component, is large at a GHz-band frequency, thus having an excellent noise suppression effect, the noise suppression sheet comprises a flat magnetic powder having a saturation magnetostriction of 12.0×10 | 08-22-2013 |
| 20130256582 | FERRITE THIN FILM-FORMING COMPOSITION MATERIAL, METHOD OF FORMING FERRITE THIN FILM, AND FERRITE THIN FILM FORMED USING THE SAME - To provide a ferrite thin film-forming composition material that is a composition material for forming a ferrite thin film by using the sol-gel method which can form a thin ferrite thin film having a uniform thickness and, furthermore, has excellent long-term storage stability, a method of forming a ferrite thin film using the above composition material, and a ferrite thin film formed by using the above method. A ferrite thin film-forming composition material is a composition material for forming a NiZn ferrite, CuZn ferrite, or NiCuZn ferrite thin film by using a sol-gel method, in which the composition material is formed by dissolving metallic raw materials in a solvent including acetonitrile, and the fraction of acetonitrile is 30 mass % to 60 mass % with respect to 100 mass % of the composition material. | 10-03-2013 |
| 20140001398 | FERROMAGNETIC PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND ANISOTROPIC MAGNET, BONDED MAGNET AND COMPACTED MAGNET | 01-02-2014 |
| 20140008564 | MAGNETIC FILTRATION PROCESS, MAGNETIC FILTERING MATERIAL, AND METHODS OF FORMING MAGNETIC FILTERING MATERIAL - The present invention provides magnetically responsive activated carbon, and a method of forming magnetically responsive activated carbon. The method of forming magnetically responsive activated carbon typically includes providing activated carbon in a solution containing ions of ferrite forming elements, wherein at least one of the ferrite forming elements has an oxidation state of +3 and at least a second of the ferrite forming elements has an oxidation state of +2, and increasing pH of the solution to precipitate particles of ferrite that bond to the activated carbon, wherein the activated carbon having the ferrite particles bonded thereto have a positive magnetic susceptibility. The present invention also provides a method of filtering waste water using magnetic activated carbon. | 01-09-2014 |
| 20140054490 | GRAPHENE COMPOSITES WITH DISPERSED METAL OR METAL OXIDE - Metal-graphene nanocomposites, metal-oxide-graphene nanocomposites, and method for their preparation are described. According to some embodiments, a metal salt is combined with graphite oxide (GO) to form a metal salt-GO composite. The metal salt-GO composite is reduced to a metal-graphene or metal oxide-graphene nanocomposite material. The metals may be magnetic or non-magnetic. In some embodiments, the reduction is conducted via exposure to intensified electromagnetic radiation, such as focused solar radiation. | 02-27-2014 |
| 20140124697 | PREPARATION METHOD AND APPLICATION OF MAGNETIC IRON OXIDE AND DESULFURIZER CONTAINING THE MAGNETIC IRON OXIDE AS ACTIVE COMPONENT - Provided is a preparation method of magnetic iron oxide Fe | 05-08-2014 |
| 20140131612 | INJECTION MOLDING COMPOSITION AND PRODUCING METHOD THEREOF - An injection molding composition includes a ferrite powder which is a collection of ferrite particles, a first binder and a second binder, wherein a softening point of the second binder is lower than that of the first binder, a weight and a specific surface area of the ferrite powders are represented by Wp and S, and a weight and a density of the first binder and the second binder is represented by Wb1, Wb2, and Db1, Db2, and a hypothetical thickness Tb1 of the first binder is 0.6 to 3.0, and a hypothetical thickness Tb2 of the second binder is 5.0 to 16.0. In the composition, it is preferable that coated ferrite particles covering the outer circumference of the ferrite particles with the first binder and the second binder exist. | 05-15-2014 |
| 20140264145 | NANOFERRITE FLAKES - A ferrite layer having a columnar structure is formed, and ferrite flakes are separated from the ferrite layer. The ferrite flakes include a metal oxide having a spinel cubic crystal structure with a stoichiometry represented by AB | 09-18-2014 |
| 20140284515 | FERRITE THIN FILM-FORMING COMPOSITION AND METHOD OF FORMING FERRITE THIN FILM - This ferrite thin film-forming composition is a composition for forming a thin film of NiZn ferrite, CuZn ferrite, or NiCuZn ferrite using a sol-gel method, and the composition includes: metal raw materials; and a solvent containing N-methyl pyrrolidone, wherein a ratio of an amount of N-methyl pyrrolidone to 100 mass % of the total amount of the composition is in a range of 30 to 60 mass %. | 09-25-2014 |
| 20140291570 | POROUS STABILIZED BEDS, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is a method comprising disposing a first particle in a reactor; the first particle being a magnetic particle or a particle that can be influenced by a magnetic field, an electric field or a combination of an electrical field and a magnetic field; fluidizing the first particle in the reactor; applying a uniform magnetic field, a uniform electrical field or a combination of a uniform magnetic field and a uniform electrical field to the reactor; elevating the temperature of the reactor; and fusing the first particles to form a monolithic solid. | 10-02-2014 |
| 20140361213 | METHOD FOR PREPARING MAGNETIC IRON OXIDE - A method for preparing magnetic iron oxide Fe | 12-11-2014 |
| 20140374646 | HYBRID MATERIAL COMPRISING GRAPHENE AND IRON OXIDE, METHOD FOR MANUFACTURING THE SAME, AND APPARATUS FOR TREATING WASTE WATER USING THE SAME - A method of manufacturing a hybrid material including graphene and iron oxide includes (a) preparing graphene oxide, (b) dispersing the graphene oxide in water to prepare a first dispersion, (c) adding divalent iron (Fe) and trivalent iron (Fe) to the first dispersion to prepare a second dispersion, (d) adjusting pH of the second dispersion to be about 8 to about 11 at about 25° C., (e) increasing the temperature of the second dispersion obtained from the (d) process up to about 80 to about 110° C., and adding a reducing agent to the second dispersion obtained from the (e) process to prepare a uniform and fine hybrid material including graphene and iron oxide. | 12-25-2014 |
| 20150008356 | PROCESS FOR PREPARING A MAGNETIC TALCOUS COMPOSITION, AND MAGNETIC TALCOUS COMPOSITION - A process for preparing a magnetic talcous composition including mineral particles, referred to as magnetic talcous particles, having a non-zero magnetic susceptibility, in which, during an oxidative contacting step, talcous particles chosen from the group formed from 2:1 lamellar silicates having a zero electric charge are brought into contact with particles including at least one magnetic iron oxide chosen from the group formed from magnetite and maghemite, the magnetic particles having a mean equivalent diameter of between 1 nm and 50 nm. A magnetic talcous composition including mineral particles, referred to as magnetic talcous particles, having a non-zero magnetic susceptibility, at least 20% by weight of talcous particles and at least 0.5% by weight of magnetic particles is also described. | 01-08-2015 |
| 20150318095 | MAGNETIC SUBSTANCE AND MAGNETIC SUBSTANCE MANUFACTURING METHOD - [Object] A magnetization technique that enhances magnetic properties of an organic compound is provided without damaging properties of the organic compound or while maintaining the structure of the organic compound. | 11-05-2015 |
| 20150371776 | FERROFLUID - MWCNT HYBRID NANOCOMPOSITE IN LIQUID STATE - A water based double surfacted ferrofluid having magnetite nanoparticles (2-18 nm) coated with primary and secondary surfactants is synthesized. On the other hand, an aqueous dispersion of functionalized MWCNT (diameter=14-18 μm, length=1.6-2.5 μm) is prepared by acid treatment. A hybrid solutions in different v/v ratios yielded stable dispersions having both nanoparticles and nanotubes in itself behave as one system. The synthesized hybrid fluid show magnetic response and self-sustained homogeneity of in presence of magnetic field. In addition, the hybrid fluids exhibits a long term sedimentation and magnetic stability which enables one to use them for various applications like MRI, EMI shielding, energy conversion etc. | 12-24-2015 |
| 20160086700 | METHOD FOR PRODUCING MAGNETIC MATERIAL - Provided is a method for producing a magnetic material, the method including preparing a mixed phase material including a first magnetic metal phase formed from a magnetic metal and a second phase containing any one of oxygen (O), nitrogen (N) or carbon (C) and a non-magnetic metal, conducting a first heat treatment to the mixed phase material at a temperature of from 50° C. to 800° C., forming nanoparticle aggregates including a plurality of magnetic metal nanoparticles formed from the first magnetic metal phase and the second phase, and conducting a second heat treatment to the nanoparticle aggregates at a temperature of from 50° C. to 800° C. The nanoparticle aggregates are formed by decreasing an average particle size and a particle size distribution variation of the first magnetic metal phase after the first heat treatment. | 03-24-2016 |
| 20160176722 | METHOD OF MAGNETITE AND FERRITE NANOPARTICLE SYNTHESIS | 06-23-2016 |
| 20220135424 | MULTI-COMPONENT MESOCRYSTALLINE NANOPARTICLES AND METHOD OF MANUFACTURING THE SAME - A multi-component mesocrystalline nanoparticle is provided. The multi-component mesocrystalline nanoparticle includes an iron oxide nanocluster; and metal oxide nanocrystals bound to a surface of the iron oxide. | 05-05-2022 |
