Abstract: In the multi-layer coil component, the via conductor electrically connecting the coil layers adjacent to each other in the stacking direction of the element body protrudes from the coil region toward the side surface of the element body when viewed from the stacking direction of the element body. Therefore, the coil has a concave-convex portion. When a force is applied to the multi-layer coil component from the outside, the force is dispersed in the concave-convex portion of the coil, and thus defects are less likely to occur in the coil than in a coil in which the side of the side surfaces is flat.

Abstract: A ferrite composition comprises a main component and a subcomponent. The main component includes 32.0 to 46.4 mol % of iron oxide in terms of Fe2O3, 4.4 to 14.0 mol % of copper oxide in terms of CuO, and 8.4 to 56.9 mol % of zinc oxide in terms of ZnO. The subcomponent includes 0.53 to 11.00 parts by weight of a silicon compound in terms of SiO2, 0.1 to 12.8 parts by weight of a tin compound in terms of SnO2, and 0.5 to 7.0 parts by weight of a bismuth compound in terms of Bi2O3, with respect to 100 parts by weight of the main component.

Abstract: In the multi-layer coil component, the lead conductor is exposed from the end surface of the element body and is connected to the external electrode provided on the end surface. When the lead conductor is led out to the end surface of the element body, the lead area can be easily increased as compared with the case where the lead conductor is led out to the side surface of the element body. Therefore, by connecting the coil and the external electrode via the lead conductor, high connectivity between the coil and the external electrode is achieved.

Abstract: A method of A production method including interdiffusion of a Ni component in a magnetic layer and a Zn component in a nonmagnetic sheet to form an interdiffusion layer in a region of the nonmagnetic sheet inside a conductive pattern. This method allows the interdiffusion layer to be formed without need for complicated processing of the nonmagnetic sheet. Furthermore, there is no boundary region between the magnetic layer and the nonmagnetic sheet around it. The nonmagnetic layer is located between turns of a coiled conductor to suppress degradation of dc bias characteristics and a magnetic body penetrates in a region inside the coiled conductor to suppress reduction in inductance due to provision of the nonmagnetic layer between turns of the coiled conductor.

Abstract: A production method of a multilayer inductor is provided as one capable of readily producing a multilayer inductor which can achieve satisfactory inductance and de bias characteristics together. In this production method of the multilayer inductor, there occurs interdiffusion of a Ni component in a magnetic layer and a Zn component in a nonmagnetic sheet to form an interdiffusion layer in a region of the nonmagnetic sheet inside a conductive pattern. This method allows the interdiffusion layer to be formed without need for complicated processing of the nonmagnetic sheet. Furthermore, there is no boundary region between the magnetic layer and the nonmagnetic sheet around it, which suppresses occurrence of cracking.

Abstract: A multilayer inductor component has a multilayer part having a plurality of magnetic layers laminated therein and a conductor part arranged within the multilayer part. The magnetic layers are formed from a ferrite material and an additive. The ferrite material contains Fe2O3, NiO, CuO, and ZnO. Fe2O3 is 30 to 45 mol %. NiO is 45 to 58 mol %. CuO is 6 to 10 mol %. ZnO is 0 to 3 mol %. The additive contains CoO. The content of CoO is 0.1 to 2.5 mass % with respect to the ferrite material as a whole. The multilayer inductor component has an impedance peak of 500 ? or greater at an operating frequency of 1 GHz or higher.

Abstract: A laminated inductor, as well as a method of manufacturing such a laminated inductor, are provided. The laminated inductor includes: a laminate; a pair of external electrodes arranged on the outer surfaces of the laminate respectively; and a coil, arranged within the laminate and formed by electrically connecting a plurality of strip-like conductor patterns. The conductor patterns have: a pair of broad faces, intersecting the lamination direction and mutually opposing; and peripheral side faces adjacent to the pair of broad faces and extending in the lamination direction. The peripheral side faces are concavo-convex faces, in which concave portions and convex portions are arranged in alternation in the lamination direction. The laminate enters into the concave portions of the peripheral side faces.

Abstract: A laminated inductor, in which there is extremely little tendency for cracking to occur between adjacent conductor patterns in portions of a laminate in the lamination direction even when the conductor pattern thickness is large, as well as a method of manufacturing such a laminated inductor, are provided. A laminated inductor includes: a laminate; a pair of external electrodes arranged on the outer surfaces of the laminate respectively; and a coil, arranged within the laminate and formed by electrically connecting a plurality of strip-like conductor patterns. The conductor patterns have: a pair of broad faces, intersecting the lamination direction and mutually opposing; and peripheral side faces adjacent to the pair of broad faces and extending in the lamination direction. The peripheral side faces are concavo-convex faces, in which concave portions and convex portions are arranged in alternation in the lamination direction. The laminate enters into the concave portions of the peripheral side faces.

Abstract: A multilayer inductor component has a multilayer part having a plurality of magnetic layers laminated therein and a conductor part arranged within the multilayer part. The magnetic layers are formed from a ferrite material and an additive. The ferrite material contains Fe2O3, NiO, CuO, and ZnO. Fe2O3 is 30 to 45 mol %. NiO is 45 to 58 mol %. CuO is 6 to 10 mol %. ZnO is 0 to 3 mol %. The additive contains CoO. The content of CoO is 0.1 to 2.5 mass % with respect to the ferrite material as a whole. The multilayer inductor component has an impedance peak of 500? or greater at an operating frequency of 1 GHz or higher.

Abstract: The ferrite paste according to the present invention contains a ferrite powder and an organic vehicle, and the organic vehicle contains an organic solvent and a binder made of a polyvinyl acetal resin and ethyl cellulose. The binder content in the ferrite paste is at least 3.0 weight parts and no more than 5.0 weight parts per 100 weight parts of the ferrite powder, and the polyvinyl acetal resin content is at least 0.5 weight part and no more than 2.0 weight parts per 100 of the weight parts ferrite powder. The ethyl cellulose content is the remainder of subtracting the polyvinyl acetal resin content from the binder content.

Abstract: This invention provides a pressure- and heat-sensitive multilayer copying paper useful as a recording material for various types of recording machines, such as a portable terminal. A pressure- and heat-sensitive multilayer copying paper comprises: an upper paper member composed of: a substrate sheet; a layer provided on a front surface of the substrate sheet comprising a organic compound and an acidic organic compound; a layer provided on a back surface of the substrate sheet comprising a organic compound, microcapsules encapsulating the organic compound and a thermomeltable material; and an overcoated protective layer placed on the layer provided on a back surface of the substrate sheet; and a lower paper member: a substrate sheet; a layer provided on a front surface of the substrate sheet comprising at least one acidic organic compound which forms color in case that it reacts with the organic compound.

Abstract: A fiber-reinforced chlorinated polyethylene composition comprises 100 parts by weight of a continuous phase of a chlorinated polyethylene and 2-100 parts by weight of a polyamide dispersed in the continuous phase in a fine short fiber form. Further a process comprises kneading a chlorinated polyethylene and a fiber-formable polyamide at a temperature not lower than the melting point of the polyamide and then stretching the kneaded product to obtain the above fiber-reinforced chlorinated polyethylene composition. When in the above process, the kneading is effected by further adding a reactive binder, there can be obtained a fiber-reinforced chlorinated polyethylene composition wherein the compatibility and dispersion of the fiber-formable polyamide with and in the chlorinated polyethylene are improved.

Abstract: A reinforced rubber composition comprising 100 parts by weight of a vulcanizable rubber including 1 to 100 parts by weight of fine short fibers of a fiber forming polyamide buried therein, and the polyamide and the rubber are bonded through a silane coupling agent. This reinforced rubber composition is suitable for use as automobile tires and the parts thereof and rubber products such as, rubber houses, rubber belts, rubber parts for automobiles, and footwear materials.

Abstract: A reinforced rubber composition comprising 100 parts by weight of a vulcanizable rubber including 1 to 100 parts by weight of fine short fibers of a fiber forming polyamide buried therein, and the polyamide and the rubber are bonded through a silane coupling agent. This reinforced rubber composition is suitable for use as automobile tires and the parts thereof and rubber products such as, rubber houses, rubber belts, rubber parts for automobiles, and footwear materials.