Abstract: An antenna coil device including: a connector unit mounted with a connector of an external circuit detachably by being plugged-in; and a base unit provided with an antenna body including a coil, in which the connector unit and the base unit are constituted by separate members and are used by being combined integrally each other, wherein for the connector unit and the base unit, there are formed a connector fitting portion and a base fitting portion which are formed with a concave and a convex in a direction intersecting with respect to the plug-in direction of the connector unit, and by fitting the connector fitting portion and the base fitting portion, the connector unit and the base unit are combined in a state in which the antenna body is positioned with respect to the connector unit.

Abstract: An electronic component comprises: a resin frame; a semiconductor substrate housed in the resin frame; a plate shape metal member having at least one end fixed in the resin frame at a position spaced apart from the semiconductor substrate; an electrical connection region portion formed on the surface on the side of the plate shape metal member of the semiconductor substrate with an electrically conductive material; and a solder layer formed on the surface on the side of the plate shape metal member of the electrical connection region portion, wherein the plate shape metal member supports the semiconductor substrate without contact through the solder layer and the electrical connection region portion, and is electrically connected to the electrical connection region portion.

Abstract: A transformer-bobbin including a winding-frame portion constituted by a middle barrel portion 63, a lower flange portion 62 and an upper flange portion 61, wherein there is provided a slit portion 67 which notches the terminal bed unit 65 and the lower flange portion 62 and concurrently which extends in the centrally approaching and separating direction toward the middle barrel portion 63 side, and wherein at the slit portion 67, there is provided a guide wall surface 68a whose side on the middle barrel portion 63 side is positioned on the lower flange portion side compared with whose side apart from the middle barrel portion 63.

Abstract: A vibration type electromagnetic generator is formed by a nonmagnetic material and includes a hollow first pipe whose both end portions are closed, a magneto coil which is wound around the periphery of the first pipe and which is provided with solenoid coils, and a movable magnet which is arranged inside the first pipe and which is movable along a winding axis direction of a magneto coil. Then, the movable magnet includes a plurality of magnets and a magnet fixing unit composed of a nonmagnetic body for fixing the plurality of magnets whose same magnetic poles are facing one another, and among the plurality of solenoid coils, the coil length of one or more solenoid coils are made to be length equal to or greater than the magnet length of the magnet.

Abstract: A coil component includes a core formed by a magnetic material, a coil embedded in the core, a part of a terminal portion of the coil protruded from a side surface of the core, and a tabular terminal, a part thereof protruded from the side surface of the core and partly connected with the protruded part of the terminal portion of the coil. The protruded part of the terminal portion of the coil and the protruded part of the tabular terminal are respectively bent toward the bottom surface side of the core along the side surface of the core, and the protruded and bent part of the terminal portion of the coil is arranged between the protruded and bent part of the tabular terminal and the core.

Abstract: To greatly improve the productivity, the general versatility, the downsizing, the performance and the like, as compared to those of the conventional transformer, provided is a transformer including: a core; a primary winding; a secondary winding; a bobbin provided with a low voltage side coil winding portion and a high voltage side coil winding portion, wherein the secondary winding is wound onto each of the coil winding portions; and a casing disposed so as to cover an outer periphery of the bobbin, wherein the primary winding is wound onto a portion of an outer periphery of the casing corresponding to a position of the low voltage side coil winding portion.

Abstract: An ultrasonic motor (10) includes a vibrator (50) and an application means (oscillation circuit 80). A first vibrator area (51) and a second vibrator area (52), which form a vibrator (50), include piezoelectric elements polarized in the thickness direction, and fixed portions (30a, 30b) respectively. The oscillation circuit 80 applies an AC voltage to the piezoelectric elements respectively and makes the first vibrator area (51) and the second vibrator area (52) resonate individually in the surface-spreading directions. The ultrasonic motor (10) includes a coupling portion (55) for coupling vibration end portions (23a, 23b) each other and a contact element (60) which is provided on this coupling portion (55). The vibration end portions (23a, 23b) are positions which vibrate respectively in the approaching and separating directions by the resonances of the first vibrator area (51) and the second vibrator area (52) in the surface-spreading directions with respect to the fixed portions (30a, 30b).

Abstract: A vibration-powered generator (100) has a vibrating element (10) and a coil (40) arranged therearound, and is configured to obtain electromotive force by moving the vibrating element (10) relatively to the coil (40). The vibrating element (10) has a plurality of magnets (20a to 20d) arranged so as to oppose the pole-faces of the same polarity; end supporting portions (12, 13) which support the plurality of magnets from both ends in the direction of arrangement; and a cushioning (16). The cushioning (16) is held between the end supporting portion (12) and the magnet (20c), while being compressed under a stress exceeding the repelling force between the pole-faces of the magnets, so as to keep the magnets (20a to 20d) in a row without leaving a gap in between, overcoming the repelling force.

Abstract: There is provided a winding structure, a coil winding, a coil part, and a coil winding manufacturing method, which are capable of preventing occurrence of an extra space due to existence of a connecting wire part when two winding parts and a connecting wire part connecting the winding parts are formed.

Abstract: A coil component includes a core formed by a magnetic material, a coil embedded in the core, a part of a terminal portion of the coil protruded from a side surface of the core, and a tabular terminal, a part thereof protruded from the side surface of the core and partly connected with the protruded part of the terminal portion of the coil. The protruded part of the terminal portion of the coil and the protruded part of the tabular terminal are respectively bent toward the bottom surface side of the core along the side surface of the core, and the protruded and bent part o the terminal portion of the coil is arranged between the protruded and bent part of the tabular terminal and the core.

Abstract: There is provided a winding structure, a coil winding, a coil part, and a coil winding manufacturing method, which are capable of preventing occurrence of an extra space due to existence of a connecting wire part when two winding parts and a connecting wire part connecting the winding parts are formed.

Abstract: An electronic component includes a circuit board that includes a ground terminal connected to a ground potential, a coil component that is assembled on the circuit board, the coil component includes a T-shaped core and an air-core coil, a ground connection electrode that is assembled on the circuit board next to the coil component and that is connected to the ground terminal, and a mixture of a metal composite magnetic material and a resin that is formed on the circuit board and that covers the coil component and the ground connection electrode as a package. A part of the ground connection electrode is exposed outside the mixture.

Abstract: The present invention provides a material which can be used for low pressure molding, and which has a low core loss while maintaining the characteristic of an amorphous powder that is the high coercive force. It provides a magnetic powder material containing, relative to the weight thereof, amorphous powders of 45 to 80 wt %, crystalline powders of 55 to 20 wt %, and a bonding agent. The magnetic powder material contains, relative to the mass thereof, Si of 4.605 to 6.60 mass %, Cr of 2.64 to 3.80 mass %, C of 0.225 to 0.806 mass %, Mn of 0.018 to 0.432 mass %, B of 0.99 to 2.24 mass %, P of equal to or less than 0.0248 mass %, S of equal to or less than 0.0165 mass %, Co of equal to or less than 0.0165 mass %, and a balance of Fe and inevitable impurities.

Abstract: Disclosed is a method for connecting a core wire of a wire rod covered with an insulating coating and pulled out from a coil component with a substrate by irradiating a laser beam, the method comprising the steps of: (a) forming a bond part between the wire rod and the substrate, the bond part being made of a material having a high optical absorptance for laser beam; and (b) irradiating a laser beam on an area to be connected under a state that at least one of the wire rod and the substrate is being pulled toward the other.

Abstract: A method for manufacturing an electronic component for avoiding electromagnetic interference includes: (a) placing a T-shaped core and an air-core coil in a metal mold; (b) injecting a mixture of a composite magnetic material and a resin into the metal mold so that the T-shaped core and the air-core coil are embedded by the mixture; (c) heating the mixture at a first temperature; (d) adjusting an outer shape while removing excessive mixture; and (e) hardening the mixture. The method may further include a process of polishing an outside of the hardened mixture. The method may further include a process of applying a pressure of 0.1 to 20.0 kg/cm2 to the mixture for adjusting an outer shape of the mixture by a movable punch of a press machine before the hardening process.

Abstract: A magnetic core including a winding core portion; and a flange portion provided on the axial end side of at least one of the winding core portion, wherein the flange portion is formed such that contour line OL1 of cross-section P, of the flange portion, which becomes perpendicular with respect to the axis line of the winding core portion forms a shape of a first irregular convex polygon which is substantially a non-regular polygon and also a convex polygon, and the contour line OL1 contacts with respect to all of sides Sb1, Sb2, Sb3 and Sb4 which are the four sides of a first circumscribed rectangle which becomes minimum within imaginary rectangles circumscribed with the contour line OL1 and also, the contour line OL1 includes side Sa1 and side Sat which respectively overlap with portions of respective ones of the side Sb1 and the side Sb2.

Abstract: Disclosed is a method for connecting a core wire of a wire rod covered with an insulating coating and pulled out from a coil component with a substrate by irradiating a laser beam, the method comprising the steps of: (a) forming a bond part between the wire rod and the substrate, the bond part being made of a material having a high optical absorptance for laser beam; and (b) irradiating a laser beam on an area to be connected under a state that at least one of the wire rod and the substrate is being pulled toward the other.

Abstract: A coil component includes: a bar-like core; and a winding part formed of a conducting wire that is wound in a plurality of layers around the outer periphery of the core according to a solenoidal winding method. Winding collapse preventing shifts D1 to D4 each corresponding to a plurality of turns between an end part of a lower winding layer and an end part of an upper winding layer are respectively set to both end parts in the winding width direction of winding layers of the winding part. In transitioning from the lower winding layer to the upper winding layer, the conducting wire is turned back from the end part of the lower winding layer, and is obliquely wound in a small number of turns across each winding collapse preventing shift corresponding to the plurality of turns, and dense winding of the upper winding layer is started.

Abstract: An electronic component includes a circuit board that includes a ground terminal connected to a ground potential, a coil component that is assembled on the circuit board, the coil component includes a T-shaped core and an air-core coil, a ground connection electrode that is assembled on the circuit board next to the coil component and that is connected to the ground terminal, and a mixture of a metal composite magnetic material and a resin that is formed on the circuit board and that covers the coil component and the ground connection electrode as a package. A part of the ground connection electrode is exposed outside the mixture.

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.