Abstract: 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.

Abstract: There is provided a double-layer composite metal powder particle including an Fe-based powder, an insulating layer formed on a surface of the Fe-based powder, and a lubricating wax coating layer formed on the insulating layer.

Abstract: There is provided a multilayered inductor, including: an inductor body; a coil part formed on the inductor body and having a conductive circuit and a conductive via; and external electrodes formed on both end surfaces of the inductor body, wherein the inductor body includes 65 to 95 wt % of a metallic magnetic material and 5 to 35 wt % of an organic material.

Abstract: There is provided an electromagnetic induction module for a wireless charging element, including a laminate formed by laminating magnetic sheets, each magnetic sheet including magnetic particles and having a groove portion of a coil pattern formed in one surface thereof, and a coil disposed in the groove portion.

Abstract: There is provided a method of manufacturing a double-layer composite metal powder particle, the method including preparing an iron (Fe)-based powder particle, forming an insulating layer on a surface of the iron (Fe)-based powder particle, and forming a lubricating wax coating layer on the insulating layer.

Abstract: There are provided a multilayer ferrite sheet capable of performing communications in a wideband frequency, an antenna device using the same, and a manufacturing method thereof. The multilayer ferrite sheet includes: a Y-type hexaferrite layer; and a Z-type hexaferrite layer, wherein the Y-type hexaferrite and the Z-type hexaferrite are alternately laminated.

Abstract: There is provided a magnetic composite sheet including: a magnetic layer including first and second magnetic pieces having different sizes; and a cover film formed on one surface or both surfaces of the magnetic layer, wherein, in a cross-section of the magnetic composite sheet taken in a direction parallel to a direction in which the magnetic layer and the cover film are laminated, when a length of the first magnetic piece in a vertical direction is a and a length thereof in a horizontal direction is b, and a length of the second magnetic piece in the vertical direction is a? and a length thereof in the horizontal direction is b?, b/a is greater than b?/a?(b/a>b?/a?).

Abstract: There is provided an electromagnetic induction module for a wireless charging element, including a laminate formed by laminating magnetic sheets, each magnetic sheet including magnetic particles and having a groove portion of a coil pattern formed in one surface thereof, a coil disposed in the groove portion and having a spiral shape and 2 or more turns, and a cover sheet laminated on an upper surface, a lower surface, or both surfaces of the laminate.

Abstract: There is provided an electromagnetic induction module for a wireless charging element, the electromagnetic induction module including a magnetic sheet including magnetic particles and having a groove portion formed in one surface thereof, the groove portion having a shape corresponding to a coil pattern, and a coil disposed in the groove portion.

Abstract: There is provided a power inductor including a coil supporting layer having a through-hole, first and second coil layers formed in a spiral shape on both surfaces of the coil supporting layer, an inductor body having the coil supporting layer and the first and second coil layers buried therein so that end portions of the first and second coil layers are exposed through both end surfaces thereof, and first and second external electrodes formed on both end surfaces of the inductor body, to be connected to the exposed end portions of the first and second coil layers, respectively, wherein in the inductor body, a core formed in the through-hole is formed of a magnetic material including spherical metal powder particles, and upper and lower cover parts are formed of a magnetic material including flake shaped metal powder particles.

Abstract: There is provided a soft magnetic core including: a composite metal powder in which surfaces of iron (Fe) particles are coated with an insulating layer; a body part formed by compressing the composite metal powder; and an alloying element diffused from a surface of the body part to an inside thereof.

Abstract: There is provided a contactless power receiver including a receiving coil part formed on a substrate, a magnetic receiving sheet positioned on the receiving coil part, a power storing part positioned on the magnetic receiving sheet, and a shielding layer positioned on the power storing part.

Abstract: There are provided a magnetic sheet and a contactless power transmission device including the same. The magnetic sheet includes a ferrite sheet, a metal sheet formed on the ferrite sheet and including a polymer resin and a metal powder, and an adhesive film inserted between the ferrite sheet and the metal sheet.

Abstract: There is provided a contactless power transmission device including a permanent magnet disposed at the center of a coil of a receiver in order to allow the center of the coil of the receiver and the center of a coil of a transmitter to coincide, and a coating layer formed on a surface of the permanent magnet.

Abstract: There is provided a multi-layered chip electronic component, including: a multi-layered body including a plurality of first magnetic layers on which conductive patterns are formed; and second magnetic layers interposed between the first magnetic layers within the multi-layered body, wherein the conductive patterns are electrically connected to form coil patterns in a stacking direction, and when a thickness of the second magnetic layer is defined as Ts and a thickness of the conductive pattern is defined as Te, 0.1?Ts:Te?0.3 is satisfied.

Abstract: Disclosed herein is a magnetic sheet capable of having flexibility and being folded, and a method for manufacturing the same. The magnetic sheet made of a magnetic material includes prominence and depression parts continuously formed over one surface of the magnetic sheet; and cracks formed between a bottom surface of the prominence part and a lower surface of the magnetic sheet.

Abstract: Disclosed herein is a magnetic board including a composite film including a rigidity film and a ductility film, and a magnetic sheet attached to one surface of the composite film and having fracture lines formed on portions joined with the ductility film.

Abstract: Disclosed herein are a nickel-zinc-copper (NiZnCu) based ferrite composition containing 0.001 to 0.3 parts by weight of bivalent metal, 0.001 to 0.3 parts by weight of trivalent metal, and 0.001 to 0.5 parts by weight of tetravalent metal based on 100 parts by weight of main component containing 47.0 to 50.0 mol % of Fe2O3, 15.0 to 27.0 mol % of NiO, 18.0 to 25.0 mol % of ZnO, and 7.0 to 13.0 mol % of CuO, and a multilayered chip device and a toroidal core using the same. According to exemplary embodiments of the present invention, a bivalent metal, a trivalent metal, and a tetravalent are contained in a NiZuCu ferrite, thereby making it possible to provide a ferrite composition having excellent quality factor (Q) characteristics. Moreover, it is possible to provide a toroidal core and a multilayered chip device having excellent sinterability, permittivity, and quality factor (Q) characteristics using the ferrite composition.

Abstract: There is provided a multi-layered chip electronic component including: a multi-layered body formed by stacking a plurality of magnetic layers; and conductive patterns disposed between the plurality of magnetic layers and electrically connected in a lamination direction to form coil patterns, wherein in a case in which a single coil pattern in the coil pattern is projected in the length and width directions of the multi-layered body, when an area of the magnetic layer inside of the coil pattern is defined as Ai and an area of the magnetic layer outside of the coil pattern is defined as Ao, 0.40?Ai:Ao?1.03 is satisfied.

Abstract: There is provided a multi-layered chip electronic component including: a multi-layered body including a 2016-sized or less and a plurality of magnetic layers; conductive patterns electrically connected in a stacking direction to form coil patterns, within the multi-layered body; and non-magnetic gap layers formed over a laminated surface of the multi-layered body between the multi-layered magnetic layers and having a thickness Tg in a range of 1 ?m?Tg?7 ?m, wherein the number of non-magnetic gap layers may have the number of gap layers in a range between at least four layers among the magnetic layers and a turns amount of the coil pattern.