A magnetic core excellent in productivity, having stable magnetic characteristics, and easy to handle for a coil device including a conductor and is formed by stacking a plurality of soft magnetic thin ribbons divided into small pieces.

The present invention relates to a composition for bonded magnets having good hot water resistance and a method of manufacturing the composition. The method of manufacturing a composition for bonded magnets includes: obtaining a first kneaded mixture by kneading a rare earth-iron-nitrogen-based magnetic powder and an acid-modified polypropylene resin; and obtaining a second kneaded mixture by kneading the first kneaded mixture with a polypropylene resin and an amorphous resin having a glass transition temperature of 120 C. or higher and 250 C. or lower, wherein, with respect to 100 parts by weight of the rare earth-iron-nitrogen-based magnetic powder, the amount of the acid-modified polypropylene resin is 3.5 parts by weight or greater and less than 10.4 parts by weight, and the total amount of the polypropylene resin and the amorphous resin is 0.35 part by weight or greater and less than 3.88 parts by weight.

A coil electronic component includes a support substrate, a coil pattern disposed on at least a surface of the support substrate and having a core region in the center of the coil pattern, at least one metal thin plate disposed on an upper portion of the coil pattern and having a shape bent toward the core region, an encapsulant sealing at least a portion of the support substrate, the coil pattern, and the at least one metal thin plate, and an external electrode disposed outside of the encapsulant and connected to the coil pattern.

A wireless power receiving module is provided. A wireless power receiving module according to one embodiment of the present invention comprises: a wireless power receiving antenna in which a conductive member having a rectangular cross section is formed in a loop shape; and a shielding sheet disposed on one surface of the antenna for shielding a magnetic field, wherein one surface of the antenna is directly attached to the shielding sheet.

A magnetic core and the like having a stable soft magnetic property, including a plurality of soft magnetic layers which are laminated, wherein a crack is formed in the soft magnetic layers. The soft magnetic layers include Fe as a principal component. The soft magnetic layers include a composition formula (Fe.sub.(1(+))X1.sub.X2.sub.).sub.(1(a+b+c+d+e+f))M.sub.aB.sub.bP.sub.cSi.sub.dC.sub.eS.sub.f, wherein: X1 is one or more selected from the group consisting of Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, and O and rare-earth elements, M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, V, and W; and a to f and and are in predetermined ranges. A structure including a nanoheterostructure or an Fe-group nanocrystal is observed in the soft magnetic layers.

A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion, and outer electrodes electrically connected to the coil conductor and disposed on the bottom surface of the coil component. The magnetic portion includes a magnetic base having a protrusion portion and a magnetic outer coating. The coil conductor is disposed on the magnetic base such that the protrusion portion is located in a core portion of the coil conductor. The magnetic outer coating is disposed so as to cover the coil conductor, and the height of the edge portion of the upper surface of the magnetic base is more than the height at the position at which the edge of the protrusion portion is located.

A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion, and outer electrodes electrically connected to the coil conductor and disposed on the bottom surface of the coil component. The coil conductor is disposed such that the central axis is arranged in the height direction of the coil component, and a winding constituting the outermost layer of a winding portion of the coil conductor is located at a position higher than the position of a winding constituting the innermost layer.

A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion and having a core portion, and outer electrodes electrically connected to the coil conductor. The magnetic portion includes a magnetic outer coating and a magnetic base having a protrusion portion. The coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion. The magnetic outer coating is disposed so as to cover the coil conductor, and the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion.

The present application relates to an alloy powder composition, a method for manufacturing a molding from the alloy powder composition, a molding obtained from the method, and an inductor comprising the molding. The alloy powder composition comprises an Fe-based amorphous alloy powder and an Fe-based crystalline alloy powder; wherein the Fe-based amorphous alloy powder has a volume resistivity of equal to or less than 110.sup.6 .Math.cm when subjected to a force of 20 kN and the Fe-based crystalline alloy powder has a volume resistivity of equal to or greater than 110.sup.6 .Math.cm when subjected to a force of 20 kN; and wherein the Fe-based amorphous alloy powder comprises Fe, Co, Cr, C, P, and Si.

A composite magnetic body according to one aspect of the present invention includes a first metal magnetic particle covered with a first resin portion made of a first resin material and a second metal magnetic particle having a smaller particle size than the first metal magnetic particle, where the second metal magnetic particle is bound to the first metal magnetic particle via a second resin portion made of a second resin material and the second resin material has a larger molecular weight than the first resin material.