Abstract: An electronic device comprising a first magnetic powder, a second magnetic powder and a conducting wire buried in the mixture of the first magnetic powder and the second magnetic powder is provided. The conducting wire comprises an insulating encapsulant and a conducting metal encapsulated by the insulating encapsulant. The Vicker's Hardness of the first magnetic powder is greater than the Vicker's Hardness of the second magnetic powder, and the mean particle diameter of the first magnetic powder is larger than the mean particle diameter of the second magnetic powder. By means of the hardness difference of the first magnetic powder and the second magnetic powder, the mixture of the first magnetic powder and the second magnetic powder and the conducting wire buried therein are combined to form an integral magnetic body at the temperature lower than the melting point of the insulating encapsulant.

Abstract: A coil component including: a magnetic core which is formed by a magnetic material and which has a top surface, a bottom surface facing the top surface and a side surface continuous approximately perpendicularly to the top surface and the bottom surface; a coil which is buried inside the magnetic core and whose end portion protrudes from the side surface of the magnetic core; a flat-shaped terminal which protrudes from the side surface of the magnetic core, is bent toward the bottom surface of the magnetic core and is connected with the end portion of the coil, wherein there is formed an opening portion at a position corresponding to the place which is bent for the flat-shaped terminal from the side surface to the bottom surface of the magnetic core.

Abstract: Disclosed herein is a method of manufacturing a noise removing filter, including preparing at least one conductive pattern, an insulating layer for covering the at least one conductive pattern, and a lower magnetic body including input/output stud terminals for electrically inputting and outputting electricity to and from the at least one conductive pattern; disposing a recognizable portion on upper surfaces of the input/output stud terminals; disposing an upper magnetic body on the recognizable portion and the insulating layer; polishing the upper magnetic body; and removing the recognizable portion such that a level of an upper surface of the upper magnetic body is higher than levels of the upper surfaces of the input/output stud terminals.

Abstract: A coil-type electronic component having a coil inside or on the surface of a base material, characterized in that the base material of the coil-type electronic component is constituted by a group of soft magnetic alloy grains whose main ingredients are iron, silicate and chromium, and that an oxide layer is formed on the surface of each soft magnetic alloy grain, where the oxide layer is produced as a result of oxidization of the grain and has more chromium than the alloy grain, and this oxide layer has a two-layer structure constituted by an inner layer whose main ingredient is chromium oxide and an outer layer whose main ingredient is iron-chromium oxide, and the outer layers of soft magnetic alloy grains are inter-bonded.

Abstract: Two-phase coupled inductors including a magnetic core, at least a first winding, and at least three solder tabs. Power supplies including a printed circuit board, a two-phase coupled inductor affixed to the printed circuit board, and first and second switching circuits affixed to the printed circuit board. Each of the first and second switching circuits are electrically coupled to a respective solder tab of the two-phase coupled inductor affixed to the printed circuit board.

Abstract: [Problem] Provided is an injection-molded reactor which has excellent heat dissipation properties and in which the internal temperature of the core can be satisfactorily inhibited from rising due to heat generation when the reactor is in operation. [Solution Means] A material for a core obtained by mixing a soft magnetic powder, a resin binder, and a thermally conductive fibrous filler having a higher thermal conductivity than the soft magnetic powder in accordance with X·(soft magnetic powder)+Y·(thermally conductive filler)+(100-X-Y)·(resin binder), wherein X, indicating the proportion of the soft magnetic powder, is 83 to 96% by mass and Y, indicating the proportion of the thermally conductive filler, is 0.2 to 6.8% by mass, is used to mold a core 16 so that a coil 10 obtained by winding an electric wire is embedded therein without an interval, thereby configuring a reactor 15.

Abstract: According to one aspect, there is provided an inductor core including: an axially extending core member, an axially extending external member at least partly surrounding the core member, thereby forming a space around the core member for accommodating a winding between the core member and the external member, a plate member presenting a radial extension and being provided with a through-hole, wherein the core member is arranged to extend into the through-hole, wherein the plate member is a separate member from the core member and the external member and is adapted to be assembled with the core member and the external member, wherein a magnetic flux path is formed which extends through the core member, the plate member and the external member.

Abstract: An Fe-based amorphous alloy powder of the present invention has a composition represented by (Fe100-a-b-c-x-y-z-tNiaSnbCrcPxCyBzSit)100-?M?. In this composition, 0 at %?a?10 at %, 0 at %?b?3 at %, 0 at %?c?6 at %, 6.8 at %?x?10.8 at %, 2.2 at %?y?9.8 at %, 0 at %?z?4.2 at %, and 0 at %?t?3.9 at % hold, a metal element M is at least one selected from the group consisting of Ti, Al, Mn, Zr, Hf, V, Nb, Ta, Mo, and W, and the addition amount ? of the metal element M satisfies 0.04 wt %???0.6 wt %. Accordingly, besides a decrease of a glass transition temperature (Tg), an excellent corrosion resistance and high magnetic characteristics can be obtained.

Abstract: A magnetic assembly is formed by a Printed Circuit Board (PCB) and a cover. A plurality of magnetic elements is electrically disposed on the PCB, and the magnetic elements are connected to one another through an electric circuit on the PCB. An accommodation space is formed on the cover for receiving the magnetic elements. During the manufacturing of the magnetic assembly, a cover with an appropriate space is selected according to the size, quantity, and specification type of the magnetic elements. After the two components are assembled, adhesive is injected into the cover, so that the cover and the PCB are fixedly disposed, and the elements in the accommodation space are protected. Therefore, in a process of manufacturing the magnetic assembly, covers with different accommodation spaces are selected for collocation according to requirements of the assembled electrical elements.

Abstract: A reactor includes a core, and a coil, in which a projected shape of the coil in projection in a winding axis direction is a rectangle. The coil is embedded in the core. The coil is exposed an outer peripheral side of one of long sides of the rectangle of the coil from the core.

Abstract: There is provided a laminated inductor including: a body in which a plurality of magnetic layers are stacked; at least one non-magnetic layers interposed between the magnetic layers and including a Al2O3 dielectric material and a K—B—Si-based glass; and a plurality of internal electrodes formed on the magnetic layers.

Abstract: A power supply module is disclosed. the power supply module includes a coil including a coil body and connecting terminals; an electronic component including at least an integrated circuit chip; a magnetic core configured to enclose in and around the coil body, wherein a recess is provided on at least one side surface of the magnetic core, the electronic components are located in the recess, and an opening is provided on at least one side wall of the recess; a connector configured to be tightly attached to and cover the side surface where the recess is provided, and be electrically connected with the coil and the electronic component; and a heat conducting material provided in the recess and configured to cover the electronic component.

Abstract: High- or medium-voltage equipment comprising an induction-activated portion, a tank surrounding the active portion and filled with a dielectric fluid, such as oil, and passive acoustic reduction means for reducing acoustic waves coming from the active portion and propagating in the dielectric fluid. According to the invention, the passive means create an interference field that divides the propagated waves into two groups of waves of opposite phase that interfere with each other in a zone that is at a distance from the walls of the tank so as to at least limit the amplitude of the waves before they make contact with said walls. The equipment provides an effective solution for significantly reducing the noise that is propagated by the dielectric fluid medium.

Abstract: An improved structure of transformer includes a lead frame main body (1), a lead frame cover (2), a trouser-like flap (3), and two iron cores (4) where the lead frame main body (1) has a penetration hole (11) with a bobbin (12) formed at the circumference there around. The trouser-like flap (3) being made of metal has a hollow part (31) for slipping on a bobbin (121) of the lead frame main body (1) also includes horizontally stretched thigh parts (32), (33). The outer circumference of the trouser-like flap (3) is furnished with a primary winding (123). The lead frame cover (2) being a sheet-shaped body has a hollow hole (21) furnished at the center thereof. On the inner-side surface, each of the two iron core (4) has a main core part (41) capable of stretching through the penetration hole (11) of the lead frame main body (1) where the main core part (41) has a containing circumferential trench (43) capable of containing the lead frame main body (1).

Abstract: An AC transformer having a cylindrical core configurable for single or polyphase power input and/or output transformer applications. The transformer core structure is capable of being configured to provide for single or polyphase inputs or outputs by varying the transformer primary and secondary winding configurations. A polyphase input configuration can be utilized in polyphase output transformers, such as for variable frequency drive (VFD) applications. Additional methods for winding transformer cores minimize the quantity of core winding wire necessary for transformer manufacture.

Abstract: Provided is a reactor including a core; and a case housing the coil and the core, the core including an inner core portion arranged inside the coil and an outer core portion partly or entirely covering the outside of the coil, the outer core portion being formed of a mixture of a magnetic material and a resin. The coil is arranged such that the axial direction of the coil is substantially parallel to a bottom surface of the case. The difference in concentration of the magnetic material in the outer core portion in the axial direction of the coil is smaller than the difference in concentration of the magnetic material in the outer core portion in a direction along a side wall of the case. With the reactor, even if the outer core portion covering the outside of the coil is formed of the mixture of the magnetic material and the resin, a desirable inductance value can be easily achieved and the reactor can have good heat radiation performance.

Abstract: A transponder is disclosed to receive a wireless electromagnetic query signal and transmit a corresponding wireless electromagnetic response signal. The transponder comprises a first coil and at least one further coil that function as antennas to receive the wireless electromagnetic query signal and generate separate wired electrical incoming signals. An axis of the first coil and an axis of the at least one further coil are differently aligned in space, and each coil is associated with at least one means for limiting the voltage of the respective incoming signal. The separate wired electrical incoming signals are rectified and converted to current signals. The peak values of the current signals are detected and compared, such that a control signal is generated to identify one coil between the first coil and the at least one further coil that has a larger peak value of current.

Abstract: A method for producing a current metering device with current conductor optionally made of aluminum or aluminum alloy, which has a middle section in the form of a bar and two end sections with flattened areas, and is bent between one end section at a time and the middle section, a magnetic module which has a bushing which holds the current conductor, and two copper or copper alloy sleeves which are applied at least to parts of the end sections of the current conductor.

Abstract: A reactor is disclosed. The reactor is comprised of a housing, a solenoid coil, a center columnar member, and a core. The center columnar member provides first surfaces contacting with sandwich portions of the housing, and the core is comprised of resin including magnetic powder. The coil and the center columnar member are fixed in the core. A surface roughness (Rz2) of a second surface which contacts to the core is larger than a surface roughness (Rz1) of the first surfaces. The center columnar member further provides a basis surface of which roughness (Rz3) is smaller than the Rz2 and larger than the Rz1.

Abstract: Proposed is a transponder for receiving a wireless electromagnetic interrogation signal and for transmitting a wireless electromagnetic response signal with a first coil acting as an antenna for generating a first wired electrical receive signal from the interrogation signal, and with at least one further coil acting as an antenna for generating a further wired electrical receive signal from the interrogation signal, wherein an axis of the first coil and an axis of the further coil are aligned differently in the space, wherein in each case one full-wave rectifier for rectifying the respective receive signal is assigned to the coils, wherein a summing element for summing up the rectified receive signals generated by the full-wave rectifiers is provided in order to generate in this manner a pulsating sum signal, the frequency of which corresponds to twice the frequency of the interrogation signal.

Abstract: A laminate in which plural insulator layers are stacked includes an external electrode that is exposed to the exterior of the laminate and includes a plurality of conductive layers stacked in a staking direction and passing through some of the plural insulator layers in the stacking direction. At least one side of the external electrode facing in the stacking direction is overlaid with rest of the plural insulator layers. At least one side surface of the external electrode facing in the stacking direction is uneven with another portion of the side surface.

Abstract: 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.

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 a power inductor, including a magnetic body including a substrate having coils formed thereon, a first metal-polymer complex layer formed on upper and lower surfaces of the substrate, and a second metal-polymer complex layer formed on upper and lower surfaces of the first metal-polymer complex layer and including a higher content of a polymer than that included in the first metal-polymer layer.

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: A coil-type electronic component has a coil inside or on the surface of its base material wherein the base material in the coil-type electronic component is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; this oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via this oxide layer. The coil-type electronic component can be produced at low cost and combines high magnetic permeability with high saturation magnetic flux density.

Abstract: A laminated electronic component with adjacent wires (such as coil conductors) in insulator layers inter-connected through via holes, wherein its laminate is structured in such a way that a coil-embedded layer constituted by first insulator layers and second insulator layers laminated alternately is sandwiched between a top magnetic layer and bottom magnetic layer, with external electrodes formed on both end faces. First coil conductors are formed on the first insulator layers and second coil conductors are formed on the second insulator layers, with these coil conductors connected through via holes. Formed at the end of each second coil conductor is a connection conductor of a size sufficiently large to block off the top of the via hole provided in the insulator sheet.

Abstract: An electronic component capable of preventing the occurrence of magnetic saturation due to a magnetic flux surrounding each coil conductor and a method of manufacturing the electronic component are provided. The electronic component includes a laminate formed by stacking unit layers, where each unit layer includes a first insulating layer, and a coil conductor and second insulating layer formed on the first insulating layer. Each second insulating layer has a Ni content greater than a Ni content of each first insulating layer. Portions of the first insulating layers have a Ni content lower than a Ni content of the second portions after the laminate is calcined.

Abstract: A magnetic element may include a first core member, a second core member facing the first core member along an entire outer periphery thereof, a coil, and a base shaped body on which the first core member and the second core member are placed. The base shaped body is provided with a base member and a terminal member, and the terminal member is provided with a binding terminal part, which projects outward in a first corner part of the base member and projects from the base member on a side lower than a portion of a winding frame part side of one flange part. The second core member is provided with a cutout part at a portion corresponding to the first corner part of the base member for allowing insertion of an end drawn out from the winding frame part in a state of not contacting the second core member.

Abstract: An object is to provide a magnetic material and coil component offering improved magnetic permeability and insulation resistance, while also offering improved high-temperature load, moisture resistance, water absorbency, and other reliability characteristics at the same time. A magnetic material that has multiple metal grains constituted by Fe—Si-M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe), as well as oxide film constituted by an oxide of the soft magnetic alloy and formed on the surface of the metal grains, wherein the magnetic material has bonding parts where adjacent metal grains are bonded together via the oxide film formed on their surface, as well as bonding parts where metal grains are directly bonded together in areas having no oxide film, and resin material is filled in at least some of the voids generating as a result of accumulation of the metal grains.

Abstract: A coil-type electronic component has a coil inside or on an outer surface of its base material and is characterized in that: the base material is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; the oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via the oxide layer.

Abstract: A magnetic device includes a T-shaped magnetic core, a wire coil and a magnetic body. The T-shaped magnetic core includes a base and a pillar, and is made of an annealed soft magnetic metal material, a core loss PCL (mW/cm3) of the T-shaped magnetic core satisfying: 0.64×f0.95×Bm2.20?PCL?7.26×f1.41×Bm1.08, where f (kHz) represents a frequency of a magnetic field applied to the T-shaped magnetic core, and Bm (kGauss) represents the operating magnetic flux density of the magnetic field at the frequency. The magnetic body fully covers the pillar, any part of the base that is located above the bottom surface of the base, and any part of the wire coil that is located directly above the top surface of the base.

Abstract: An electronic component has a drum-shaped core member constituted by an assembly of soft magnetic alloy grains containing iron (Fe), silicate (Si) and chromium (Cr), a coil conductive wire wound around the core member, a pair of terminal electrodes connected to ends of the coil conductive wire, and an outer sheath resin part covering the wound coil conductive wire and constituted by a magnetic powder-containing resin; wherein there is an area where only the resin material in the magnetic powder-containing resin is permeated from the surface of the core member to a specified depth.

Abstract: A vibration-suppressed transformer is fixed to a base plate and includes a magnetic lower core, two or more magnetic upper cores, primary and secondary coils. The lower core is on the base plate. The upper cores are arranged face to face over the lower core. The coils are arranged between the lower and upper cores. Each upper core contacts the lower core, on an outer side of the coils, with a first gap being provided between the upper and lower cores, on an inner side of the coils. The upper cores are extended towards each other from the outer to the inner side of the coils, with a second gap being provided therebetween. The second gap is provided therein with a non-magnetic pressing member to press the lower core against the base plate, on an inner side of the coils.

Abstract: This disclosure provides an inductance element including a core, a conductive wire, and a pair of terminal electrodes. The core includes an upper flange portion and a lower flange portion formed on both ends of a winding-core portion, and the conductive wire is wound around the winding-core portion. End portions of the wire connect to a pair of terminal electrodes formed on a bottom surface of the lower flange portion. Each terminal electrode includes a principal electrode region and a pair of extension electrode regions extending from the principal electrode region toward respective side surfaces of the lower flange portion. Each extension electrode region of each terminal electrode is not formed on a region of the bottom surface of the lower flange portion through which one of the end portions of the conductive wires pass.

Abstract: A coil-type electronic component has a coil inside or on the surface of its base material and is characterized in that: the base material is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; this oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via this oxide layer.

Abstract: A method of producing a surface-mount inductor by encapsulating a coil with an encapsulation material containing a resin and a filler using a mold die assembly is provided. In the method, a tablet and a coil are used. The tablet is prepared by preforming the encapsulation material into a shape having a flat plate-shaped portion and a pillar-shaped convex portion on a peripheral thereof. The coil is a wound conductive wire having a cross-section of rectangular-shape. The coil is placed on the tablet to allow both ends of the coil to extend along an outer side surface of the pillar-shaped convex portion of the tablet. The coil and the encapsulation material are integrated together while clamping the both ends of the coil between an inner wall surface of the mold die assembly and the outer side surface of the pillar-shaped convex portion of the tablet, to form a molded body.

Abstract: A coil component includes a coil section, an outer package, and a pair of outer electrodes. The outer package is made of magnetic material, embeds the coil section therein, and has a bottom face, a top face provided with cut-out sections, a first lateral face, and a second lateral face. Each of the pair of outer electrodes extends from both ends of the coil section, and is pulled out from the first lateral face, and then is bent toward the bottom face, and yet is bent along the bottom face and the second lateral face, and finally is bent toward the cut-out section of the top face. Recesses are formed on the bottom face at places overlapped with the pair of outer electrodes, and each of the outer electrodes is bent to form a projection protruding inside the corresponding recess.

Abstract: An Fe-based amorphous alloy of the present invention has a composition formula represented by Fe100-a-b-c-x-y-z-tNiaSnbCrcPxCyBzSit, and in the formula, 1 at %?a?10 at %, 0 at %?b?3 at %, 0 at %?c?6 at %, 6.8 at %?x?10.8 at %, 2.2 at %?y?9.8 at %, 0 at %?z?4.2 at %, and 0 at %?t?3.9 at % hold. Accordingly, an Fe-based amorphous alloy used for a powder core and/or a coil encapsulated powder core having a low glass transition temperature (Tg), a high conversion vitrification temperature (Tg/Tm), and excellent magnetization and corrosion resistance can be manufactured.

Abstract: A laminated coil component includes a magnetic body part made of a ferrite material and a coil conductor wound into a coil shape and embedded in the magnetic body part to form a component base. The component base is divided into a first region near the coil conductor and a second region other than the first region. The grain size ratio of the average crystal grain size of the magnetic body part in the first region to the average crystal grain size of the magnetic body part in the second region is 0.9 or less. The molar content of CuO in the ferrite raw material is set to 0.2 to 4 mol %. In a method laminated coil component, the coil is formed from a conductive paste including Ag, and firing the laminated body is performed by setting the oxygen concentration is 0.1 volume % or less as a firing atmosphere.

Abstract: Provided is a reactor having a small size with consideration of loss reduction. A reactor 1A includes a coil 10 and a magnetic core 20. The coil 10 is formed by winding a wire. The magnetic core 20 includes an internal core portion 21 that is inserted through the coil 10 and a couple core portion 23 that is coupled to an end of the internal core portion 21 and that covers an outer periphery of the coil 10. The core portions 21 and 23 form a closed magnetic path. An interposed core portion 25 is disposed between the coil 10 and the internal core portion 21. The reactor 1A satisfies 0<S2/S1<0.15, where S1 is an inner cross-sectional area of the coil 10 and S2 is a cross-sectional area of the interposed core portion 25; and satisfies B1>B2 and B1>B3, where B1 is a saturation magnetic flux density of the internal core portion 21, B2 is a saturation magnetic flux density of the couple core portion 23, and B3 is a saturation magnetic flux density of the interposed core portion 25.

Abstract: The disclosed reactor has a case and a cylindrical molded coil assembly which is disposed inside of the case and which is formed by covering a coil with a resin, wherein the coil assembly is sealed by an iron powder mixed resin to which iron powder has been admixed. The reactor has a pillar provided as a single body with the case, and one or multiple ring-shaped core members. The ring-shaped core members are disposed outside the outer surface of the pillar such that the pillar is inserted inside the inner surface of said ring-shaped core members, and the assembly coil is disposed outside the outer surface of the ring-shaped core members such that the ring-shaped core members are inserted inside the inner surface of said coil assembly. The ring-shaped core members are sealed by means of the aforementioned iron powder-mixed resin.

Abstract: A vibration-suppressed transformer is fixed to a base plate and includes a magnetic lower core, two or more magnetic upper cores, primary and secondary coils. The lower core is on the base plate. The upper cores are arranged face to face over the lower core. The coils are arranged between the lower and upper cores. Each upper core contacts the lower core, on an outer side of the coils, with a first gap being provided between the upper and lower cores, on an inner side of the coils. The upper cores are extended towards each other from the outer to the inner side of the coils, with a second gap being provided therebetween. The second gap is provided therein with a non-magnetic pressing member to press the lower core against the base plate, on an inner side of the coils.

Abstract: An inductor includes a first core, a conducting wire, a second core and a first lead frame. There is an accommodating space formed on a first side of the first core and there is a recess portion formed on a second side of the first core, wherein the first side is opposite to the second side. The first core has a first height. The conducting wire is disposed in the accommodating space. The second core is disposed on the first side of the first core and covers the accommodating space. The first lead frame has an embedded portion embedded in the recess portion. The embedded portion has a second height. After embedding the embedded portion in the recess portion of the first core, a total height of the embedded portion and the first core is smaller than the sum of the first height and the second height.

Abstract: An element for forming an induction component contains a coil body with a core and two radially projecting flanges, which are formed on the respective axial ends of the core and of which the one flange is designed to be attached to a printed circuit board and is larger than the other flange. On its outer side, the coil body is surrounded by a shielding ring, which sits on the larger of the two flanges. To this end, the shielding ring has an inwardly directed step on the lower end corner, the one limb of which step forms an abutment surface to be placed on the inner side of the flange. The other limb forms an abutment surface to be placed against the outer edge of the flange. The step preferably runs over the entire circumference of the shielding ring. As a result, an air gap formed between the upper flange and the inner side of the shielding ring is fixed in terms of its dimensions and position.

Abstract: A laminated body is formed by stacking insulating layers to be formed into a rectangular parallelepiped shape. A linear conductor is stacked together with the insulating layers and connects end surfaces of the laminated body that are opposed to each other with respect to a first direction. Lengths of the end surfaces of the laminated body in a second direction, which is perpendicular to the stacking direction and the first direction, are equal to or smaller than the lengths of the end surfaces in the stacking direction.

Abstract: A laminated inductor includes: a laminate constituted by multiple insulator layers; external electrodes formed on the outside of the laminate; and a coil conductor formed spirally inside the laminate, wherein the coil conductor has leaders that electrically connect to the external electrodes and a coil body other than the leaders, wherein the coil conductor has conductive patterns formed on the insulator layers, and via hole conductors that penetrate through the insulator layers and electrically connect the multiple conductor patterns, wherein all of the conductor patterns constituting the coil body are either a C-shaped pattern or line-shaped pattern, wherein the coil body has a partial structure where two or more C-shaped pattern layers are stacked together successively, and wherein the number of C-shaped patterns in the coil body is greater than that of line-shaped patterns.

Abstract: Disclosed herein are a coil component and a manufacturing method thereof. The coil component includes: an electrode body including coil electrodes disposed therein, the coil electrodes having an insulating film deposited on a surface thereof; and external terminals formed at both side portions of the electrode body and connected to the coil electrodes, wherein the electrode body is made of an insulating material with which magnetic powders are mixed, in order to improve impedance characteristics.

Abstract: A method for manufacturing a spiral coil, the method including: forming a solenoid having a diameter larger than a length by spirally winding an insulated electric wire; forming a spiral coil having folded corners by folding four corners in a circumference direction with respect to the solenoid; fixing the folded corners of the spiral coil; and fixing two terminal portions corresponding to start and end points of the spiral coil to a fixing module. According to the method, a thin and long spiral coil having folded corners is easily manufactured by using a general insulated electric wire. In addition, the spiral coil manufactured by using such a method is applicable to a surface radio frequency (RF) coil optimized for various applications of an electro-magnetic acoustic transducer (EMAT) and enables easy access to an optimized transducer.

Abstract: A laminated inductor having an internal conductor forming region, as well as a top cover region and bottom cover region formed in a manner sandwiching the internal conductor forming region between top and bottom; wherein the internal conductor forming region has a magnetic part formed with soft magnetic alloy grains, as well as helical internal conductor embedded in the magnetic part; and at least one of the top cover region and bottom cover region (or preferably both) is/are formed with soft magnetic alloy grains whose average grain size is greater than that of grains in the internal conductor forming region including the soft magnetic alloy grains constituting the magnetic part.