Abstract: A coil component having high inductance while suppressing core loss is obtained. The coil component includes a coil and a magnetic core. The magnetic core has a laminated body in which soft magnetic layers are laminated. Micro gaps are formed in the soft magnetic layers. The soft magnetic layers are divided into at least two or more small pieces by the micro gaps. A structure made of Fe-based nano-crystals is observed in the soft magnetic layers.

Abstract: An inductor has a coil portion made of a wire wound in a coil shape and an element body in which the coil portion is provided. The element body has a first core member, a second core member, and a third core member. The first core member has a winding core portion configured to be positioned inside the coil portion. The second core member is accommodated in the winding core portion. The third core member covers the coil portion and the first core member in which the second core member is accommodated in the winding core portion.

Abstract: A coil component having high inductance while suppressing core loss is obtained. The coil component includes a coil and a magnetic core. The magnetic core has a laminated body in which soft magnetic layers are laminated. The volume occupation of a magnetic material in the laminated body is 50% or more and 99.5% or less. A structure consisting of Fe-based nanocrystals is observed in the soft magnetic layers.

Abstract: A coil component having high inductance while suppressing core loss is obtained. The coil component includes a coil and a magnetic core. The magnetic core has a laminated body in which soft magnetic layers are laminated. The thickness of each of the soft magnetic layers is 10 ?m or more and 30 ?m or less. A structure made of Fe-based nano-crystals is observed in the soft magnetic layers.

Abstract: A coil component having high inductance while suppressing core loss is obtained. The coil component includes a coil and a magnetic core. The magnetic core has a laminated body in which soft magnetic layers are laminated. Micro gaps are formed in the soft magnetic layers. The soft magnetic layers are divided into at least two or more small pieces by the micro gaps. A structure made of Fe-based nano-crystals is observed in the soft magnetic layers.

Abstract: An inductor has a coil portion made of a wire wound in a coil shape and an element body in which the coil portion is provided. The element body has a first core member, a second core member, and a third core member. The first core member has a winding core portion configured to be positioned inside the coil portion. The second core member is accommodated in the winding core portion. The third core member covers the coil portion and the first core member in which the second core member is accommodated in the winding core portion.

Abstract: Provided is magnetic ferrite powder in which a peak intensity ratio of Z phase (M3Me2Fe24O41: M=one or more kinds of alkaline-earth metal, Me=one or more kinds from Co, Ni, Mn, Zn, Mg and Cu) of hexagonal ferrite is 30% or higher in X-ray diffraction and a peak value of a grain size distribution is in a range from 0.1 &mgr;m to 3 &mgr;m.

Abstract: A method including mixing powders of at least one of MgO, Mg(OH)2, and MgCO3, and powders of Fe2O3, CuO and ZnO, pre-sintering the mixed powder at 900° or lower, milling the pre-sintered raw powder, pressing the milled powder to form a pressed body and sintering the pressed body to form a magnetic ferrite powder such as MgCuZn, MgNiCuZn, or NiCuZn.

Abstract: Provided is magnetic ferrite powder in which a peak intensity ratio of Z phase (M3Me2Fe24O41: M=one or more kinds of alkaline-earth metal, Me=one or more kinds from Co, Ni, Mn, Zn, Mg and Cu) of hexagonal ferrite is 30% or higher in X-ray diffraction and a peak value of a grain size distribution is in a range from 0.1 &mgr;m to 3 &mgr;m.

Abstract: A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2O3: 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of particle size distribution positions in range of 0.3 to 1.2 &mgr;m. This MgCuZn ferrite uses such powders of less deterioration in a permeability &mgr; and a peak position of particle size distribution in range of 0.3 to 1.2 &mgr;m, thereby enabling a co-firing together with Ag or Ag alloys. It is provided a magnetic ferrite of less deterioration in a magnetic characteristic, in particular a permeability &mgr; against stress and enabling to be sintered at low temperature sintering, that is, below the melting points of Ag or Ag alloys used as electrode materials.

Abstract: A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2O3: 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of particle size distribution positions in range of 0.3 to 1.2 &mgr;m. This MgCuZn ferrite uses such powders of less deterioration in a permeability &mgr; and a peak position of particle size distribution in range of 0.3 to 1.2 &mgr;m, thereby enabling a co-firing together with Ag or Ag alloys. It is provided a magnetic ferrite of less deterioration in a magnetic characteristic, in particular a permeability &mgr; against stress and enabling to be sintered at low temperature sintering, that is, below the melting points of Ag or Ag alloys used as electrode materials.

Abstract: A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2O3: 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of particle size distribution positions in range of 0.3 to 1.2 um. This MgCuZn ferrite uses such powders of less deterioration in a permeability &mgr; and a peak position of particle size distribution in range of 0.3 to 1.2 &mgr;m, thereby enabling a co-firing together with Ag or Ag alloys. It is provided a magnetic ferrite of less deterioration in a magnetic characteristic, in particular a permeability &mgr; against stress and enabling to be sintered at low temperature sintering, that is, below the melting points of Ag or Ag alloys used as electrode materials.

Abstract: A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2O3: 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of particle size distribution positions in range of 0.3 to 1.2 &mgr;m. This MgCuZn ferrite uses such powders of less deterioration in a permeability &mgr; and a peak position of particle size distribution in range of 0.3 to 1.2 &mgr;m, thereby enabling a co-firing together with Ag or Ag alloys. It is provided a magnetic ferrite of less deterioration in a magnetic characteristic, in particular a permeability &mgr; against stress and enabling to be sintered at low temperature sintering, that is, below the melting points of Ag or Ag alloys used as electrode materials.

Abstract: A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2O3: 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of particle size distribution positions in range of 0.3 to 1.2 &mgr;m. This MgCuZn ferrite uses such powders of less deterioration in a permeability &mgr; and a peak position of particle size distribution in range of 0.3 to 1.2 &mgr;m, thereby enabling a co-firing together with Ag or Ag alloys. It is provided a magnetic ferrite of less deterioration in a magnetic characteristic, in particular a permeability &mgr; against stress and enabling to be sintered at low temperature sintering, that is, below the melting points of Ag or Ag alloys used as electrode materials.

Abstract: A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2O3: 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of particle size distribution positions in range of 0.3 to 1.2 &mgr;m. This MgCuZn ferrite uses such powders of less deterioration in a permeability &mgr; and a peak position of particle size distribution in range of 0.3 to 1.2 &mgr;m, thereby enabling a co-firing together with Ag or Ag alloys. It is provided a magnetic ferrite of less deterioration in a magnetic characteristic, in particular a permeability &mgr; against stress and enabling to be sintered at low temperature sintering, that is, below the melting points of Ag or Ag alloys used as electrode materials.

Abstract: A multilayer ferrite component is produced with powder for magnetic ferrite, characterized by having the composition of Fe2O3: 40 to 51 mol %, CuO: 7 to 30 mol %, ZnO: 0.5 to 35 mol % and MgO: 5 to 35 mol %, in which a peak of particle size distribution positions in range of 0.3 to 1.2 &mgr;m. This MgCuZn ferrite uses such powders of less deterioration in a permeability &mgr; and a peak position of particle size distribution in range of 0.3 to 1.2 &mgr;m, thereby enabling a co-firing together with Ag or Ag alloys. It is provided a magnetic ferrite of less deterioration in a magnetic characteristic, in particular a permeability &mgr; against stress and enabling to be sintered at low temperature sintering, that is, below the melting points of Ag or Ag alloys used as electrode materials.

Abstract: The present invention relates to a laminated chip bead element demonstrating noise absorption characteristics over a broad range in a high frequency range of GHz or higher. An insulating body is constituted of a material achieved by mixing ferrite powder and an insulating resin. At least one signal conductor is embedded in the insulating body. It is desirable that the insulating body includes a plurality of composite members.

Abstract: Non-magnetic ferrite composition used in the composite multilayer part of the invention is based on ferrite containing Fe.sub.2 O.sub.3 and CuO and/or ZnO and further contains 1 to 30% by weight of four oxide components of MgO, BaO, SiO.sub.2, and B.sub.2 O.sub.3 or five or six oxide components including the four oxide components plus at least one of SnO.sub.2 and CaO. Since the use of this non-magnetic ferrite minimizes the difference in coefficient of linear expansion between different materials used, the non-magnetic ferrite, when applied to composite multilayer parts such as shielded multilayer chip inductors, shielded multilayer transformers, and multilayer LC composite parts, prevents occurrence of cracks in the interior and avoids a lowering of circuit resistance due to precipitation of CuO, ZnO or the like at the interface between different materials. There result composite multilayer parts with improved characteristics.