Class / Patent application number | Description | Number of patent applications / Date published |
336233000 | CORE (E.G., COMPRESSED POWDER) | 85 |
20080231409 | Dust Core and Method for Producing Same - The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles. | 09-25-2008 |
20090002117 | Coil component - A coil component is provided, and the coil component for an inductor is deformable dependent on flex of a flexible printed board due to elapse of time when mounted thereon, and has high resistance against dropping impact and has an inductance value. The coil component includes an anisotropic compound magnetic sheet which is layered on at least any one or both of the upper surface and the lower surface of an air core coil formed spirally in a plane and which is composed of flat or needle-shaped soft magnetic metal powder, which has a major axis and a minor axis and is dispersed in a resin material, the major axis of which corresponds to an in-plane direction of the air core coil. | 01-01-2009 |
20090066467 | Micromagnetic Device and Method of Forming the Same - A micromagnetic device including a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy. The magnetic alloy includes iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy. | 03-12-2009 |
20090066468 | Power Converter Employing a Micromagnetic Device - A power converter including a power train, a controller and a driver. The power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device interposed between the switch and the output of the power converter. The micromagnetic device includes a substrate, and a magnetic core layer formed over the substrate from a magnetic alloy including iron, cobalt and phosphorous. A content of the cobalt is in a range of 1.8 to 4.5 atomic percent. A content of the phosphorus is in a range of 20.1 to 30 atomic percent. A content of the iron is substantially a remaining proportion of the magnetic alloy. The controller provides a signal to control the duty cycle of the switch. The driver provides a drive signal to the switch as a function of the signal from the controller. | 03-12-2009 |
20090121820 | Core and method for producing core - Disclosed is a highly heat-resistant core which has a dust core as a base body. A dust core obtained by press-molding magnetic powder particles particles each of which are covered with an insulating film is used as the base body. An inorganic heat-resistant insulating film is formed on at least a part of a surface of the dust core which faces a winding wire. | 05-14-2009 |
20090206975 | Magnet Core and Method for Its Production - Magnet cores pressed using a powder of nanocrystalline or amorphous particles and a pressing additive should be characterised by minimal iron losses. These particles have first surfaces represented by the original strip surfaces and second surfaces represented by surfaces produced in a pulverisation process, the overwhelming majority of these second particle surfaces being smooth cut or fracture surfaces without any plastic deformation, the proportion T of areas of plastic deformation of the second particle surfaces being 0≦T≦0.5. | 08-20-2009 |
20090267722 | GROUNDING OF MAGNETIC CORES - An apparatus includes a magnetic core, a ground node, and one or more vias to provide a connection between the magnetic core and the ground potential. The magnetic core includes a first magnetic layer and a second magnetic layer. In addition, the apparatus may include a conductive pattern. The conductive pattern may be at a third layer between the first and second magnetic layers. The apparatus may be included in inductors, transformers, transmission lines, and other components using ferromagnetic cores or shields. Such components may be integrated on a chip or die. | 10-29-2009 |
20100097171 | SOFT MAGNETIC ALLOY, MAGNETIC COMPONENT USING THE SAME, AND THIER PRODUCTION METHODS - A soft magnetic alloy contains P, B, and Cu as essential components. As a preferred example, an Fe-based alloy contains Fe of 70 atomic % or more, B of 5 atomic % to 25 atomic %, Cu of 1.5 atomic % or less (excluding zero), and P of 10 atomic or less (excluding zero). | 04-22-2010 |
20100117781 | Procedure and equipment for the reduction of iron mass requirements of electric machines with prevention of magnetic saturation - The invention relates to any procedure and equipment, where laminated, soft magnetic mass is used in a direct and/or indirect form for the production of magnetic fields. For instance applying in inverters, converters, transverters and transformers in such a way, through that we transfer voltage and/or current from the primary side onto the secondary side—with use of a magnetic field. With application of this procedure and interconnected technique, an opportunity presents itself for reduction of both the quantity and the measures of iron mass of laminated transformers to their quarter size, which transformers are applied in electric facilities with operation of low frequency, however independently from the functional frequency and the power of the equipment. The equipment is able to provide much larger starting current and is not sensitive to any spasmodic load either. Thus, it is not necessary to apply expensive semiconductors of high frequency as well as costly technologies. | 05-13-2010 |
20100123541 | REACTOR AND METHOD OF PRODUCING THE REACTOR - A reactor is composed of a coil and a core placed in the inside area and outer peripheral area of the coil in a container. The core is composed of magnetic powder, non-magnetic powder, and resin. The nom-magnetic powder is composed of main component powder and low elastic modulus powder. The main component powder as a main component of the non-magnetic powder is made of one or more kinds of powder of a heat conductivity which is larger than that of the resin. The low elastic modulus powder is made of one or more kinds of powder of an elastic modulus which is smaller than that of the powder forming the main component powder. | 05-20-2010 |
20100176909 | COIL COMPONENT AND POWER-SUPPLY DEVICE PROVIDED THEREWITH - The coil component includes a magnetic core | 07-15-2010 |
20100188185 | Piezoelectric Transformer - To provide a piezoelectric transformer which can reduce the capacity of an input unit and realize a impedance matching with a drive circuit of an input side. A piezoelectric transformer includes: a piezoelectric substrate ( | 07-29-2010 |
20100188186 | SOFT MAGNETIC AMORPHOUS ALLOY - A soft magnetic amorphous alloy represented by the following composition formula: {Fe | 07-29-2010 |
20100201474 | INDUCTANCE ELEMENT, METHOD FOR MANUFACTURING THE INDUCTANCE ELEMENT, AND SWITCHING POWER SUPPLY USING THE INDUCTANCE ELEMENT - In one embodiment, an inductance element includes a toroidal core and a bottomed insulating resin case. The bottomed insulating resin case includes a cylindrical outer wall section, a cylindrical inner wall section, a bottom section, an open section and a hollow section. The cylindrical outer wall section has an extending section exceeding the height of the toroidal core. The open section of the insulating resin case is covered with a cover portion having a bent section formed by bending an extending section of the cylindrical outer wall section. | 08-12-2010 |
20100237978 | Method for the production of powder composite cores and powder composite core - A powder composite core is to be particularly dense and strong while being produced from soft magnetic alloys. In particular, the expansion of the heat-treated core is to be avoided. To produce this core, a strip of a soft magnetic alloy is first comminuted to form particles. The particles are mixed with a first binder having a curing temperature T | 09-23-2010 |
20100308951 | PROCEDURE FOR MANUFACTURING A MAGNETIC CORE AND A MAGNETIC CORE - This invention relates to the manufacture of inductive components and electric energy filters. Particularly, this invention relates to the manufacture of a large magnetic core piece. The magnetic core consists of at least one set of essentially identical constituents ( | 12-09-2010 |
20110012702 | MnZn FERRITE AND A TRANSFORMER MAGNETIC CORE - A MnZn ferrite having excellent characteristics of an incremental permeability μΔ value of 250 or greater in a wide temperature range of 0 to 85° C. and an incremental permeability μΔ value of 400 or greater at 65° C. when an 80 A/m direct current magnetic field is applied is provided. The MnZn ferrite has basic components that comprise: ferric oxide (in terms of Fe | 01-20-2011 |
20110193672 | MAGNETIC ELEMENT AND METHOD FOR MANUFACTURING THE SAME - A magnetic element and a method for manufacturing the same are provided. The magnetic element may be applied to various electronic devices requiring magnetic elements, for example, communication circuits and transformer circuits. The magnetic element mainly includes a substrate and an iron core. The substrate has an accommodation slot formed thereon, and the iron core is assembled in the accommodation slot. Furthermore, the substrate and the iron core are respectively disposed with a vertical circuit, and the substrate further has a horizontal circuit disposed on an upper surface and a lower surface respectively. After the above components are assembled, each vertical circuit and each horizontal circuit are electrically connected, so as to form the magnetic element having an coil architecture. | 08-11-2011 |
20110279216 | MN-ZN-CO FERRITE CORE AND METHOD FOR PRODUCING THE SAME - A Mn—Zn—Co ferrite core includes a basic component, sub-components, and unavoidable impurities. As the sub-components, silicon oxide (in terms of SiO | 11-17-2011 |
20110279217 | MN-ZN FERRITE CORE AND METHOD FOR PRODUCING THE SAME - A Mn—Zn ferrite core includes a basic component, sub-components, and unavoidable impurities, wherein, as the sub-components, silicon oxide (in terms of SiO | 11-17-2011 |
20120001719 | DUST CORE AND METHOD FOR MANUFACTURING THE SAME - Provided is a dust core and a method for manufacturing a thereof, having an effect that the soft magnetic powder is prevented from sintering and bonding together upon heating, the hysteresis loss can be effectively reduced, and the DC B-H characteristics is excellent. In a first mixing process, a soft magnetic powder composed mainly of iron and an inorganic insulating powder of 0.4 wt %-1.5 wt % are mixed by a mixer. A mixture obtained in the first mixing process is heated in a non-oxidizing atmosphere at 1000° C. or more and below a sintering temperature of the soft magnetic powder. In a binder addition process, a silane coupling agent of 0.1-0.5 wt % is added. A binder, e.g. a silicone resin of 0.5-2.0 wt % is added to the soft magnetic alloy powder to which the inorganic insulating powder is attached by the silane coupling agent, and the soft magnetic alloy powders are bonded to each other so as to be granulated. Then, the mixture is added with a lubricant resin and compression-molded so as to form a green compact. In an annealing process, the mold is annealed in a non-oxidizing atmosphere. | 01-05-2012 |
20120229245 | SOFT MAGNETIC POWDER, GRANULATED POWDER, DUST CORE, ELECTROMAGNETIC COMPONENT, AND METHOD FOR PRODUCING DUST CORE - Provided is a soft magnetic powder used for obtaining a dust core having a low hysteresis loss, in particular, in a high temperature range. A soft magnetic powder includes an aggregate of composite magnetic particles, each including a soft magnetic particle containing Fe, Si, and Al, and an insulating coating film disposed on the surface thereof, and satisfies the expressions (1) and (2) below: Expression (1) . . . 27≦2.5a+b≦29 and Expression (2) . . . 6≦b≦9, where a represents the Si content (mass %) and b represents the Al content (mass %). The soft magnetic powder is capable of reducing the hysteresis loss, in a high-temperature environment, of a dust core obtained using the soft magnetic powder. | 09-13-2012 |
20120262266 | ALLOY, MAGNETIC CORE AND PROCESS FOR THE PRODUCTION OF A TAPE FROM AN ALLOY - An alloy is provided which consists of Fe | 10-18-2012 |
20120286920 | MAGNETIC GRAIN BOUNDARY ENGINEERED FERRITE CORE MATERIALS - A composite material can include a grain component and a nanostructured grain boundary component. The nanostructured grain boundary component can be insulating and magnetic, so as to provide greater continuity of magnetization of the composite material. The grain component can have an average grain size of about 0.5-50 micrometers. The grain boundary component can have an average grain size of about 1-100 nanometers. The nanostructured magnetic grain boundary material has a magnetic flux density of at least about 250 mT. The grain component can comprise MnZn ferrite particles. The nanostructured grain boundary component can comprise NiZn ferrite nanoparticles. Core components and systems thereof can be manufactured from the composite material. | 11-15-2012 |
20120319812 | Assembling magnetic component - The main purpose of this invention is to improve high forming pressure of existing Fe—Si—Al insulating magnetic powder which is not suitable for forming, combine heterogeneous insulating magnetic powder, produce hollow cup-like cover and Fe—Si—Al rod core for full magnetic path component assembling, and change the shape structure of rod core and cover design, so there will be advantages including easy to winding, assemble and cooling. | 12-20-2012 |
20120326831 | COIL COMPONENT - A coil component comprises: a coil bobbin, which has a coil-winding section in an outer circumferential portion so that a coil is to be wound on the coil-winding section, and which has a through-hole in a central portion thereof; a first core and a second core, which have a plurality of magnetic legs respectively, wherein a certain leg of the plurality of the magnetic legs of the first core and a certain leg of the plurality of the magnetic legs of the second core are inserted into the through-hole of the coil bobbin to face each other with a predetermined gap, and wherein facing surfaces of the certain legs of the magnetic legs are fixed by an adhesive; and a protective cover, which is positioned between the coil bobbin and the certain legs to suppress the adhesive from being attached to the coil bobbin. | 12-27-2012 |
20130002391 | MULTILAYERED POWER INDUCTOR AND METHOD FOR PREPARING THE SAME - Disclosed herein are a multilayered power inductor including a magnetic layer having a structure in which a metal magnetic powder is distributed on a glass substrate, a composition for the magnetic layer, and a method for preparing a multilayered power inductor. According to an exemplary embodiment of the present invention, the multilayered power inductor including a magnetic layer obtained by mixing the metal magnetic powder having high Ms with the glass substrate has excellent bias characteristics having small variations in capacity even when high current is applied. In addition, the exemplary embodiment of the present invention can use Cu as an inner electrode, instead of an expensive precious metal Ag. | 01-03-2013 |
20130015939 | POWDER MAGNETIC CORE AND METHOD FOR PRODUCING THE SAMEAANM Inagaki; TakashiAACI Matsudo-shiAACO JPAAGP Inagaki; Takashi Matsudo-shi JPAANM Ishihara; ChioAACI Katsushika-kuAACO JPAAGP Ishihara; Chio Katsushika-ku JP - The present invention provides a powder magnetic core which has a low iron loss and an excellent constancy of magnetic permeability and is suitably used as a core for a reactor mounted on a vehicle. The powder magnetic core is a compact of a mixed powder containing an iron-based soft magnetic powder having an electrical insulating coating formed on its surface and a powder of a low magnetic permeability material having a heat-resistant temperature of 700° C. or higher than 700° C. and a relative magnetic permeability of not more than 1.0000004. The density of the compact is 6.7 Mg/m | 01-17-2013 |
20130033354 | FERRITE POWDER OF METAL, FERRITE MATERIAL COMPRISING THE SAME, AND MULTILAYERED CHIP COMPONENTS COMPRISING FERRITE LAYER USING THE FERRITE MATERIAL - Disclosed herein are a ferrite powder having a core-shell structure, the core being made of iron (Fe) or iron-based compounds comprising iron (Fe) and the shell being made of metal oxides, a ferrite material comprising the ferrite powder and the glass, and multilayered chip components including the ferrite layer using the ferrite material, inner electrodes, and outer electrodes. According to the exemplary embodiments of the present invention, it is possible to provide the ferrite material capable of improving the change in the inductance L value in response to applied current by suppressing magnetization at high current. The multilayered chip components including the ferrite material according to the exemplary embodiment of the present invention can also be used in a band of MHz. | 02-07-2013 |
20130038420 | GREEN COMPACT, METHOD OF MANUFACTURING THE SAME, AND CORE FOR REACTOR - Provided are a green compact from which a low-loss core can be formed, a method of manufacturing the green compact, and a core for a reactor using the green compact. Parts of outer circumferential surfaces of green compacts | 02-14-2013 |
20130076477 | Fe-GROUP-BASED SOFT MAGNETIC POWDER - The present invention provides a Fe-group-based soft magnetic powder that is used for the pressed powder magnetic cores for a choke coil, reactor coil, etc., and that has a higher magnetic permeability. | 03-28-2013 |
20130082815 | SOFT MAGNETIC ALLOY ELEMENT AND ELECTRONIC COMPONENT USING THE SAME - A soft magnetic alloy element of high magnetic permeability that allows for easy quality check is constituted by a grain compact including: multiple metal grains | 04-04-2013 |
20130106559 | METHOD OF REDUCING AUDIBLE NOISE IN MAGNETIC CORES AND MAGNETIC CORES HAVING REDUCED AUDIBLE NOISE | 05-02-2013 |
20130106560 | CERAMIC ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF | 05-02-2013 |
20130147596 | Reactor Device - A reactor device is provided with a yoke section incorporating an elliptical wire-wound iron core and an iron-core leg section having wire-wound iron cores stacked one on another. The reactor device may have significantly deteriorated magnetic properties due to an abnormal current caused by a magnetic flux developed in the leg section. The short circuit of the abnormal current is cut by providing a cut portion from the center of the end surface of a wire-wound iron core in the leg section to the outer shape thereof and then insulating the cut portion. Use is made of a fixture jig to maintain the shape of the iron core even after the iron core has been cut, and at a final stage, use is made of a band or tape for maintaining the shape. The band used for maintaining the shape is adapted to prevent a magnetic flux developed in the iron core from making one turn. | 06-13-2013 |
20130162386 | CORROSION-RESISTANT COATING SYSTEM FOR A DRY-TYPE TRANSFORMER CORE - A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core. | 06-27-2013 |
20130181804 | IRON-BASED SOFT MAGNETIC POWDER AND PRODUCTION METHOD THEREOF - Disclosed is an iron-based soft magnetic powder obtained by preparing an iron-oxide-based soft magnetic powder through water atomization, and thermally reducing the iron-oxide-based soft magnetic powder. The iron-based soft magnetic powder has an average particle size of 100 μm or more and has an interface density of more than 0 μm | 07-18-2013 |
20130214893 | MAGNET CORE FOR LOW-FREQUENCY APPLICATIONS AND METHOD FOR PRODUCING A MAGNET CORE FOR LOW-FREQUENCY APPLCATIONS - Magnet core for low-frequency applications and method for producing a magnet core for low-frequency applications | 08-22-2013 |
20130257578 | RECONFIGURING TAPE WOUND CORES FOR INDUCTORS - A tape wound inductor core device, inductors including same and methods of manufacture. Tape wound material may be cut and/or shaped into “pucks” that have an exterior surface made up of or defined substantially by the edge surfaces of the layers of the constituent conductive material, with all or most of the broad surfaces disposed inwardly, thereby reducing eddy currents and associated losses. Various puck configurations, inductor arrangements and fabrication techniques are disclosed. | 10-03-2013 |
20140002231 | COMMON MODE NOISE FILTER | 01-02-2014 |
20140035713 | IRON COBALT TERNARY ALLOY AND SILICA MAGNETIC CORE - A magnetic core of superparamagnetic core shell nanoparticles having a particle size of less than 200 nm; wherein the core is an iron cobalt ternary alloy and the shell is a silicon oxide is provided. The magnetic core is a monolithic structure of superparamagnetic core grains of an iron cobalt ternary alloy directly bonded by the silicon dioxide shells. A method to prepare the magnetic core which allows maintenance of the superparamagnetic state of the nanoparticles is also provided. The magnetic core has little core loss due to hysteresis or eddy current flow. | 02-06-2014 |
20140035714 | FERRITE POWDER, METHOD FOR PREPARING THE SAME, AND COMMON MODE NOISE FILTER INCLUDING THE SAME AS MATERIAL FOR MAGNETIC LAYER - Disclosed herein are a ferrite powder not including pores in a surface thereof, a method for preparing the same, and a common mode noise filter including the same as a material for a magnetic layer. The spherical ferrite powder in which the pores in the surface thereof are removed as a magnetic layer of the common mode noise filter has high density, such that dispersibility is improved, thereby making it possible to improve adhesive strength with a polymer binder to be mixed. In addition, the adhesive strength between the polymer binder and the ferrite powder is improved, such that at the time of manufacturing or mounting of a chip, a defect such as a crack generated by a thermal impact due to a lack of adhesive strength between the ferrite powder and the polymer binder may be suppressed, thereby securing the reliability with respect to the thermal impact. | 02-06-2014 |
20140043132 | FERROMAGNETIC CORES OF AMORPHOUS FERROMAGNETIC METAL ALLOYS AND ELECTRONIC DEVICES HAVING THE SAME - Ferromagnetic cores made from amorphous glasses and methods of forming ferromagnetic cores from metallic glasses are provided. The method forms a magnetic core from a section of a series of concentrically nested ferromagnetic tubes formed of an amorphous metallic material having a Curie-point temperature above room temperature and demonstrating soft ferromagnetic properties, thereby simplifying the manufacturing process and improving the electrical and mechanical performance of the core itself. | 02-13-2014 |
20140049354 | NEW COMPOSITION AND METHOD - The present invention concerns a composite iron-based powder mix suitable for soft magnetic applications such as inductor cores. The present invention also concerns a method for producing a soft magnetic component and the component produced by the method. | 02-20-2014 |
20140062646 | MAGNETIC CORE FOR USE IN AN INTEGRATED CIRCUIT, AN INTEGRATED CIRCUIT INCLUDING SUCH A MAGNETIC CORE, A TRANSFORMER AND AN INDUCTOR FABRICATED AS PART OF AN INTEGRATED CIRCUIT - A magnetic core is provided for an integrated circuit, the magnetic core comprising: a plurality of layers of magnetically functional material; a plurality of layers of a first insulating material; and at least one layer of an secondary insulating material; wherein layers of the first insulating material are interposed between layers of the magnetically functional material to form subsections of the magnetic core, and the at least one layer of second insulating material is interposed between adjacent subsections. | 03-06-2014 |
20140077920 | INDUCTOR CORE, AN ARRANGEMENT FOR A PRESS, AND A MANUFACTURING METHOD - Inductor core including: a base core portion having a first surface and an opposite second surface; an inner core portion extending from the first surface in a direction transverse to the first surface; an outer core portion extending, in the direction transverse to the first surface, from the first surface to an end surface of the outer core portion, the outer core portion at least partly surrounding the inner core portion, thereby forming a space around the inner core portion for accommodating a winding; wherein the first surface includes a recess for accommodating a connection portion of the winding, said recess extending at least a part of a distance between the inner core portion and the outer core portion, and wherein the outer core portion presents a slit extending from said end surface towards the recess, and wherein the second surface comprises a first protrusion oppositely arranged to the recess. | 03-20-2014 |
20140085039 | SOFT MAGNETIC POWDER - A composite iron-based powder suitable for soft magnetic applications such as inductor cores. Also, a method for producing a soft magnetic component and the component produced by the method. | 03-27-2014 |
20140097931 | Choke - An electronic device including a core, at least a wire and a magnetic material is provided. The core includes a pillar, a top board and a bottom board. The pillar is disposed between the top board and the bottom board. An area of the top board is smaller than an area of the bottom board. A winding space is formed among the top board, the bottom board and the pillar. The wire is winded around the pillar and located in the winding space. The magnetic material fills the winding space to encapsulate the wire. The magnetic material includes a resin and a metallic powder, wherein an average particle diameter of the magnetic powder is smaller than 20 μm. | 04-10-2014 |
20140152416 | MAGNETIC CORE, METHOD AND DEVICE FOR ITS PRODUCTION AND USE OF SUCH A MAGNETIC CORE - A magnetic core, such as for an interphase transformer, made of a nanocrystalline alloy, which consists of | 06-05-2014 |
20140176291 | CHOKE COIL - A choke coil of the present invention employs a dust core as a material for each core, and includes an outer core having a quadrangular frame shape, a bobbin on which a coil is wound and which is mounted in the frame of the outer core, and an inner core which serves as a magnetic core of the bobbin and which has a core-rod-like shape having a central axis parallel to the winding axial direction of the coil. The inner core is interposed between two flat surfaces facing each other in the inner face of the outer core such that the central axis extends in a direction orthogonal to the two flat surfaces. | 06-26-2014 |
20140232507 | POWDER MAGNETIC CORE AND PRODUCTION METHOD FOR SAME - A production method for a powder magnetic core includes: mixing soft-magnetic metal powder with silicone resin including at least one functional group selected from carboxyl groups, mercapto groups, amino groups, and silanol groups for forming a mixture in which a surface of the soft-magnetic metal powder is coated with the silicone resin; drying the mixture for forming dry powder; pressurizing the dry powder for forming a compact; and heat-treating the compact. | 08-21-2014 |
20140232508 | REACTOR, REACTOR-USE COIL COMPONENT, CONVERTER, AND POWER CONVERTER APPARATUS | 08-21-2014 |
20140240077 | AMORPHOUS ALLOY POWDER, DUST CORE, MAGNETIC ELEMENT, AND ELECTRONIC DEVICE - An amorphous alloy powder is composed of an amorphous alloy material containing Fe, Cr, Mn, Si, B, and C as constituent components, and in the amorphous alloy material, Fe is contained as a main component, the content of Cr is 0.5 at % or more and 3 at % or less, the content of Mn is 0.02 at % or more and 3 at % or less, the content of Si is 10 at % or more and 14 at % or less, the content of B is 8 at % or more and 13 at % or less, and the content of C is 1 at % or more and 3 at % or less. By using such an amorphous alloy powder, a dust core which reduces iron loss and decreases magnetostriction can be obtained. | 08-28-2014 |
20140240078 | FERRITE POWDER OF METAL, FERRITE MATERIAL COMPRISING THE SAME, AND MULTILAYERED CHIP COMPONENTS COMPRISING FERRITE LAYER USING THE FERRITE MATERIAL - Disclosed herein are a ferrite powder having a core-shell structure, the core being made of iron (Fe) or iron-based compounds comprising iron (Fe) and the shell being made of metal oxides, a ferrite material comprising the ferrite powder and the glass, and multilayered chip components including the ferrite layer using the ferrite material, inner electrodes, and outer electrodes. According to the exemplary embodiments of the present invention, it is possible to provide the ferrite material capable of improving the change in the inductance L value in response to applied current by suppressing magnetization at high current. The multilayered chip components including the ferrite material according to the exemplary embodiment of the present invention can also be used in a band of MHz. | 08-28-2014 |
20140266558 | INTEGRATED MAGNETIC ASSEMBLIES AND METHODS OF ASSEMBLING SAME - A magnetic core is provided. The magnetic core includes a magnetic base and a magnetic plate. The magnetic base includes a first U-core, a second U-core, and a spacing member. The first U-core has a relatively high magnetic permeability, and includes a first surface having a first winding channel defined therein. The second U-core has a relatively high magnetic permeability, and includes a second surface having a second winding channel defined therein. The first and second surfaces are substantially coplanar with one another. The spacing member is connected to the first and second U-cores such that a gap having a relatively low magnetic permeability is formed between the first and second U-cores. The magnetic plate is coupled to the magnetic base such that the magnetic plate substantially covers the first and second surfaces. | 09-18-2014 |
20140266559 | STRUCTURE OF TRANSFORMER'S IRON CORE - An improved structure of transformer's iron core mainly has an iron core main body, having a salient main core part with a rectangular horizontal cross-section, furnished at the center part thereof. The main core part has a pair of oppositely configured side wing parts furnished at the outside thereof. A containing circumferential channel formed between the main core part and the side wing parts has a pair of oppositely configured side openings making the containing circumferential channel form communicative exits toward the outside through the two side openings. By employing the salient main core part with a rectangular-shaped horizontal cross-section, the invention is capable of forming longer outer circumference to effectively increase the area of the magnetic flux thereof under the premise of same bobbin. Moreover, in association with the relatively larger side openings that are capable of providing lead frame containing in the containing ring-trench to be outwardly connected to a relatively wider wire connecting seats, the invention is capable of satisfying the required specification of multiple wire-drawing. | 09-18-2014 |
20140375413 | METAL MAGNETIC POWDER AND METHOD FOR FORMING THE SAME, AND INDUCTOR MANUFACTURED USING THE METAL MAGNETIC POWDER - Disclosed herein is a metal magnetic powder, and the metal magnetic powder according to the exemplary embodiment of the present invention includes a soft magnetic core particle and a multilayer coating film covering the core particle and having a multilayer structure, the multilayer coating film including an oxide film formed by heat treating the core particle and an insulation film formed by coating a coating particle with respect to the core particle. | 12-25-2014 |
20140375414 | OPEN TYPE STEREOSCOPIC TRIANGLE AMORPHOUS ALLOY WOUND IRON CORE - An open type stereoscopic triangle amorphous alloy reel iron core comprises an iron core body wherein a three-phase round core column combined by three identical closed iron core single frames, and the combined round core column is arranged in a stereoscopic equilateral triangle shape. Each iron core single frame comprises iron yokes arranged on an upper end and a lower end of the iron core single frame, the iron yoke on one side of each iron core single frame is provided with an opening, and the iron core single frame can be assembled or disassembled at the opening. By providing the opening, on the iron yoke on one side of each stereoscopic triangle amorphous alloy iron core single frame, coils can be independently wound in the production process of a transformer, and the finished coils are directly sleeved on the three core columns, improving production efficiency and saving production cost. | 12-25-2014 |
20150015359 | SOFT MAGNETIC COMPOSITE, METHOD FOR PREPARING THE SAME, AND ELECTRONIC COMPONENTS INCLUDING THE SAME AS CORE MATERIAL - Disclosed herein are a soft magnetic composite including an insulating layer formed along an inter-particle boundary of a soft magnetic core metal powder, a method for preparing the same, and electronic components including the same as a core material. | 01-15-2015 |
20150077210 | FERRITE CERAMIC COMPOSITION, CERAMIC ELECTRONIC COMPONENT, AND PROCESS FOR PRODUCING CERAMIC ELECTRONIC COMPONENT - This disclosure provides a ferrite ceramic composition, a ceramic electronic component including the ceramic composition, and a process of producing a ceramic electronic component including the ferrite ceramic composition, of which the insulation performance can be secured even when fired simultaneously with a metal wire material containing Cu as the main component, and which can have good electric properties. The ferrite ceramic composition includes an Ni—Mn—Zn-based ferrite having a molar content of CuO of 5 mol % or less and in which, when the molar content (x) of Fe | 03-19-2015 |
20150371745 | MAGNETIC CORE POWDER, POWDER MAGNETIC CORE, AND METHOD FOR PRODUCING MAGNETIC CORE POWDER AND POWDER MAGNETIC CORE - Provided is a powder ( | 12-24-2015 |
20150380149 | METHOD FOR PRODUCING MAGNETIC PARTICLES, MAGNETIC PARTICLES, AND MAGNETIC BODY - This method for producing magnetic particles comprises a nitriding treatment step for applying a nitriding treatment to material particles each having a core-shell structure in which an aluminum oxide layer is formed on the surface of an iron microparticle, and nitriding the iron microparticles while maintaining the core-shell structure. | 12-31-2015 |
20160086717 | MAGNETIC MATERIAL, METHOD FOR PRODUCING MAGNETIC MATERIAL, AND INDUCTOR ELEMENT - Provided is a magnetic material which includes a plurality of magnetic metal particles having a rate of change in the lattice constant of ±1% or less with respect to the lattice constant obtained after a heat treatment at 1000° C., a plurality of insulating coating layers insulating and covering at least a portion of the magnetic metal particles, and an insulating resin disposed around the magnetic metal particles and the insulating coating layers. The insulating coating layers are in contact with one another. | 03-24-2016 |
20160133368 | GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND TRANSFORMER IRON CORE USING SAME - A grain-oriented electrical steel sheet subjected to magnetic domain refining by linearly introducing strains in a direction intersecting a rolling direction of the steel sheet repeatedly with intervals in the rolling direction, wherein if a repeating interval of the strains in the rolling direction is d (mm) and, when the steel sheet is placed on a flat surface, a mean value of difference between a height from the flat surface in linear strain-introduced areas of a steel sheet surface and a height from the flat surface in intermediate points between adjacent linear strain-introduced areas is h (mm), then the ratio h/d of the h to the d is 0.0025 or more and 0.015 or less. | 05-12-2016 |
20160155550 | COIL COMPONENT | 06-02-2016 |
20160155566 | SOFT MAGNETIC CORE HAVING EXCELLENT HIGH-CURRENT DC BIAS CHARACTERISTICS AND CORE LOSS CHARACTERISTICS AND METHOD OF MANUFACTURING SAME | 06-02-2016 |
20160180995 | ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING THE SAME | 06-23-2016 |
20180021853 | DUST CORE, METHOD FOR MANUFACTURING DUST CORE, INDUCTOR INCLUDING DUST CORE, AND ELECTRONIC/ELECTRIC DEVICE INCLUDING INDUCTOR | 01-25-2018 |
336234000 | Laminated type (includes bundles of rods or wires) | 17 |
20090009280 | Magnetic core for current sensor having high magnetic saturation - A magnetic core according to the present invention is used in a current sensor for detecting amount of current flowing through a conductor by a Hall element. The magnetic core is made of a resin material, in which a granular magnetic material is dispersed, and is shaped to form a circular magnetic flux passage therein by injection molding. The magnetic core is formed by laminating plural layers in an inside to outside direction of the magnetic core, and a magnetic material content is made higher in the outer layers than in the inner layers. In this manner, uniformity of the magnetic flux density in the core is improved. Alternatively, the magnetic core is made by laminating plural layers having respective magnetic material content ratios in its thickness direction to adjust magnetic saturation to a desired level. A measurable range of electric current is widened by suppressing magnetic saturation in the magnetic core without increasing its size. | 01-08-2009 |
20090021337 | MULTILAYER COMPOSITE ELECTRONIC COMPONENT - A multilayer composite electronic component is provided with an inductor section and a varistor section. The inductor section has a first sintered body consisting of a stack of nonmagnetic layers, and coil conductors arranged in the first sintered body. The varistor section has a second sintered body consisting of a stack of varistor layers, hot electrodes, and ground electrodes. The first sintered body and the second sintered body are integrally fired. A region of the first sintered body sandwiched between the coil conductors and regions of the first sintered body inside the respective coil conductors are comprised of a magnetic material or a nonmagnetic material and contain a ferrite material containing a Cu component in an amount of 0.05 mol % to 2 mol % in terms of CuO. | 01-22-2009 |
20090040002 | Iron Core, Mold and Method of Forming and Laminating the Same - An iron core built in a transformer, a rectifier, a stabilizer, a lamp, and others is disclosed. When the iron core is formed, an E-shaped iron core and a pair of ⊂-shaped iron cores, which are arranged on both sides of the E-shaped iron core, are simultaneously stamped from a sheet of silicon steel. A predetermined number of E-shaped iron cores and pairs of ⊂-shaped iron cores are assembled and laminated to form a laminated iron core. The iron core includes the E-shaped iron core having side legs symmetrically formed on both sides thereof and a center leg formed between the side legs and coupled to a bobbin around which a coil is wound, and the pair of ⊂-shaped iron cores each having a long leg formed corresponding to the side leg of the E-shaped iron core and a short leg formed corresponding to the center leg of the E-shaped iron core. | 02-12-2009 |
20090079532 | Composite Magnetic Core Construction - A composite magnetic core construction to replace conventional magnetic core construction for transformers, inductors, motors, generators, relays, solenoids, and delay lines. The composite core consists of a principal magnetic core section and an alternate magnetic core section. An example for constructing cores with high residual inductance above saturation is a 50% principal magnetics to a 50% alternate magnetics ratio. The alternate magnetics needs to be more economical per pound than the principal magnetics. The alternate magnetics also needs to have the same effective magnetic flux density saturation as the principal magnetics. When these two requirements are met, then the composite core will have the same power density (Watts/lb) as the original conventional core, but will be less expensive. | 03-26-2009 |
20090085711 | LAMINATED COIL COMPONENT - A laminated coil component includes high-magnetic-permeability ferrite layers that are disposed on both main surfaces of a low-magnetic-permeability ferrite layer. Pores or pores filled with a resin are formed in the low-magnetic-permeability ferrite layer. Nickel in the high-magnetic-permeability ferrite layers does not significantly diffuse into the pores or the pores filled with the resin during firing, and thus, Ni does not readily diffuse into the low-magnetic-permeability ferrite layer. | 04-02-2009 |
20100007457 | MAGNETIC COMPONENTS AND METHODS OF MANUFACTURING THE SAME - Magnetic component assemblies and core structures including coil coupling arrangements, that are advantageously utilized in providing surface mount magnetic components such as inductors and transformers. | 01-14-2010 |
20100026443 | Magnetic Electrical Device - A magnetic component and a method for manufacturing a low profile, magnetic component. The method comprises the steps of providing at least one sheet, coupling at least a portion of at least one winding to the at least one sheet, and laminating the at least one sheet with at least a portion of the at least one winding. The magnetic component comprises at least one sheet and at least a portion of at least one winding coupled to the at least one sheet, wherein the at least one sheet is laminated to at least a portion of the at least one winding. The winding may comprise a clip, a preformed coil, a stamped conductive foil, or an etched trace using chemical or laser etching. The sheet may comprise any material capable of being laminated and/or rolled, including, but not limited to, flexible magnetic powder sheets. | 02-04-2010 |
20110032069 | METHOD FOR PRODUCING A TRANSFORMER CORE AND A TRANSFORMER CORE - A method for producing a transformer core with layers of core laminations includes forming at least one core lamination of at least two segmental laminations. An end region of a first segmental lamination has a straight crosscut edge. The straight crosscut edge of the first segmental lamination together with a corresponding straight crosscut edge of an end region of a second segmental lamination forms a form-locking straight abutting edge. The straight abutting edge is at an angle relative to the longitudinal direction of the end region of one of the segmental laminations of the first core lamination. Using core laminations having different angular orientations of the abutting edges, avoids magnetic losses such as those occurring when using conventional layering techniques. Simultaneously, an intermediate space created by conventional layering techniques between individual core lamination packs can be minimized, and thereby susceptibility to corrosion can likewise be reduced or completely avoided. | 02-10-2011 |
20110181384 | MULTILAYERED CERAMIC COMPONENT AND MANUFACTURING METHOD THEREOF - A laminated ceramic component includes a ferrite magnetic layer and a glass ceramic layer made chiefly of borosilicate glass. The glass ceramic layer is laminated with the ferrite magnetic layer, and has an Ag inner conductor embedded inside. A microscopic region where aluminum and silver coexist is dispersed in the glass ceramic layer. | 07-28-2011 |
20110234361 | PENCIL CORE AND METHOD OF MANUFACTURING THE IMPROVED PENCIL CORE - In a method for manufacturing pencil cores a continuous strip of electrical steel is provided. The continuous strip is cut to create a plurality of starting strips as laminations each having a length longer than a desired length of the pencil cores and at least one of the strips having a strip width at least equal to or larger than a desired diameter of a cross-section of the pencil cores. The starting strips are provided with a bonding layer. The starting strips are stacked and then heated and cured to create a bonded stack. The bonded stack is machined to a substantially circular cross-section. Without a de-burring or de-smearing operation after the machining, the machined bonded stack is cut to create a plurality of pencil cores of the desired length. The pencil cores created by the method are substantially round, and have no welds at end faces. | 09-29-2011 |
20130002392 | MAGNETIC CORE - A method of manufacturing a magnetic core includes joining first and second core stacks having a plurality of layers of magnetic core material arranged in a laminated structure so as to substantially align the magnetic core layers of the first core stack with those of the second core stack, and inserting a magnetic filler into gaps between the substantially aligned magnetic core layers so as to bridge the gaps between the substantially aligned magnetic core layers. | 01-03-2013 |
20130106561 | AMORPHOUS ALLOY STEREO WOUND-CORE | 05-02-2013 |
20130314198 | RAPIDLY QUENCHED FE-BASED SOFT-MAGNETIC ALLOY RIBBON AND ITS PRODUCTION METHOD AND CORE - A rapidly quenched Fe-based soft-magnetic alloy ribbon having wave-like undulations on a free surface, the wave-like undulations having transverse troughs arranged at substantially constant intervals in a longitudinal direction, and the troughs having an average amplitude D of 20 mm or less, is produced by a method comprising (a) keeping a transverse temperature distribution in a melt nozzle within ±15° C. to have as small a temperature distribution as possible in a melt paddle of the alloy, and (b) forming numerous fine linear scratches on a cooling roll surface by a wire brush, thereby providing a ground surface of the cooling roll with an arithmetical mean (average) roughness Ra of 0.1-1 μm and a maximum roughness depth Rmax of 0.5-10 μm. | 11-28-2013 |
20150302970 | Magnetic Core - The invention relates to a magnetic core, and more particularly, to a magnetic switch, a magnetic amplifier and an inductor based on the magnetic core. | 10-22-2015 |
20160071637 | POWDER MAGNETIC CORE FOR REACTOR - Provided is a powder magnetic core for a reactor, whose electromagnetic properties are difficult to change with time, even when applied to a reactor used in a state that the core is exposed without being potted. The powder magnetic core for a reactor consists essentially of a compact composed of an insulation-coated iron-based soft magnetic powder that an insulating film is formed on the surface of an iron-based soft magnetic powder, and which has such a change with time of 500 hours at 180° C. that a ratio of decrease in effective magnetic permeability being 1% or less. In the compact, the content of gapping between two adjacent particles of the insulation-coated iron-based soft magnetic powder is 2 vol % or less. | 03-10-2016 |
20160172087 | Fe-Si-B-C-BASED AMORPHOUS ALLOY RIBBON AND TRANSFORMER CORE FORMED THEREBY | 06-16-2016 |
20160172095 | Wound Core for Stationary Induction Apparatus | 06-16-2016 |