Patent application number | Description | Published |
20090061256 | Ferrite thin film, method of manufacturing the same and electromagnetic noise suppressor using the same - An electromagnetic noise suppressor including a ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic anisotropy or the magnetic isotropy. The ferrite film is formed by a plating method in the presence of a magnetic field. | 03-05-2009 |
20100040553 | SPHERICAL FERRITE NANOPARTICLE AND METHOD FOR PRODUCTION THEREOF - A method for producing spherical ferrite nanoparticles includes the steps of: preparing a first aqueous solution containing a disaccharide, an alkaline, an oxidation agent, seed particles and divalent iron ions; and conducting particle growth in the first aqueous solution to produce the spherical ferrite nanoparticles. | 02-18-2010 |
20100047707 | METHOD FOR PRODUCING TONER - A toner which can efficiently induce high-frequency magnetic induction heating by Neel relaxation and/or Brown relaxation is provided. A toner including a core particle containing a thermoplastic polymer material and superparamagnetic ferrite fine particles having a particle diameter of less than 100 nm which adhere to the surfaces of the core particle is manufactured by directly forming the superparamagnetic ferrite fine particles having a particle diameter of less than 100 nm on the surfaces of the core particle so that the superparamagnetic ferrite fine particles having a particle diameter of less than 100 nm are not in contact with each other. As a result, the toner is prevented from being scattered due to the influence of a magnetic field, so that a high quality image is formed. | 02-25-2010 |
20100068512 | MAGNETIC MATERIAL FOR HIGH FREQUENCY WAVE, AND METHOD FOR PRODUCTION THEREOF - Disclosed is a magnetic material for a high frequency wave which has high magnetic permeability and small eddy-current loss, particularly a magnetic material for a high frequency wave which can be used suitably in an information device which works in a high frequency field of 1 GHz or higher. Specifically disclosed is a composite magnetic material for a high frequency wave, which comprises a (rare earth element)-(iron)-(nitrogen)-based magnetic material and a (rare earth element)-(iron)-(nitrogen)-based magnetic material whose surface is coated with a ferrite magnetic material. | 03-18-2010 |
20100239864 | METHOD OF MANUFACTURING POLYMER COATED FERROMAGNETIC PARTICLES AND POLYMER COATED FERROMAGNETIC PARTICLES - Polymer coated ferromagnetic particles could be obtained giving a solution to a problem of difficulty in dispersing ferromagnetic fine particles to a level of monodispersion because of their properties apt to form aggregates. Providing hydrophilic character to hydrophobic ferromagnetic particles obtained by adsorbing hydrophobizing agent to hydrophilic ferromagnetic particles, and dispersed using nonionic surface activating agent suppressing ionic strength increase of the particles. Monomer liquid was emulsified using nonionic surface activating agent and ionic surface activating agent. Mixing the dispersion liquid of ferromagnetic particles and the monomer emulsion were mixed and emulsion polymerization was conducted. Then well-dispersed homogeneous and stable polymer coated ferromagnetic particles showing good response to magnetic field were obtained. | 09-23-2010 |
20100243313 | MAGNETIC COMPOSITE, METHOD FOR PRODUCING THE SAME, AND SHIELDING STRUCTURE - The present invention provides a magnetic composite capable of enhancing the effect of shielding against electromagnetic noise and the like (magnetic shielding effect) while inhibiting a possible eddy current, and a method for producing the magnetic composite, and a shielding structure comprising the magnetic composite. A shielding member | 09-30-2010 |
20100261038 | COMPOSITE MAGNETIC MATERIAL FOR MAGNET AND METHOD FOR MANUFACTURING SUCH MATERIAL - Provided is a composite magnetic material having high magnetic characteristics and high electrical resistivity to be used for a magnet, especially a composite magnetic material to be suitably used for a rotary motor magnet or the like which functions in a high frequency region. The composite magnetic material for the magnet is provided by covering the surface of a rare earth-iron-nitrogen based magnetic material with a ferrite based magnetic material. | 10-14-2010 |
20110006245 | POLYMER COATED INORGANIC FINE PARTICLE AND METHOD FOR PREPARING THE SAME - An object of the present invention is to provide a polymer coated magnetic fine polymer by coating an inorganic fine particle with a thin polymer layer under precise control of a polymerization reaction and a method for preparing the same. Onto a surface of the inorganic fine particle the iniferter is fixed and grafted chains are formed on the inorganic fine particle by a living radical polymerization using the iniferter as an initiator which is defined by the following chemical formula: | 01-13-2011 |
20110071335 | APPLICATIONS OF ALTERNATING MAGNETIC FIELDS ON MAGNETIC NANOPARTICLES - Embodiments include applying or generating an alternating magnetic field near an affected area of a subject to be treated. When magnetic nanoparticles are located in the affected area, the magnetic nanoparticles are oscillated by the alternating magnetic field, which causes the magnetic nanoparticles to be dispersed within the affected area, break up the affected area, and/or heat the affected area. | 03-24-2011 |
20110140826 | WIRE MATERIAL, ELECTRONIC DEVICE, AND CAPACITOR - A wire material includes at least two branch structures disposed so as to be continuous with each other, each of the branch structures including a conductor and a pair of branching conductors connected to the conductor. The branching conductors may be connected to a front surface and a back surface of an end of the conductor. The conductors may be in the form of a foil. | 06-16-2011 |