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公开(公告)号：US11545295B2
公开(公告)日：2023-01-03
申请号：US16721647
申请日：2019-12-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Akio Igarashi
Abstract: A coil component includes first and second wires wound around a winding core portion of a core, and third and fourth wires wound around outside a portion of the first and the second wires wound around the winding core portion in an opposite direction to a winding direction of the first and second wires. The portion of the first and second wires wound around the winding core portion has a first twisted wire portion twisted together. A length of the first wire or a length of the second wire of the portion of the first and second wires wound around the winding core portion is configured to be equal to a length of the third wire or a length of the fourth wire of the portion of the third and fourth wires wound around outside the portion of the first and second wires wound around the winding core portion.
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公开(公告)号：US10163559B2
公开(公告)日：2018-12-25
申请号：US15470394
申请日：2017-03-27
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Akio Igarashi , Takashi Murakami , Koji Onishi
Abstract: A terminal electrode includes a base extending along the outer end face of a flange, a mounting part extending from the base along the bottom face of the flange via a first bending part that covers the edge portion where the outer end face and the bottom face meet, and a wire connection part extending from the base along a substantially horizontal face via a second bending part that covers the edge portion where the outer end face and the substantially horizontal face meet, the wire connection part being electrically connected to an end portion of a wire.
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公开(公告)号：US09947458B2
公开(公告)日：2018-04-17
申请号：US14963755
申请日：2015-12-09
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Akio Igarashi
CPC classification number: H01F27/2823 , H01F3/12 , H01F17/043 , H01F17/045 , H01F27/04 , H01F27/255 , H01F27/2828 , H01F27/29 , H01F27/292 , H01F2017/0093 , H01F2017/046
Abstract: A coil component includes two or more coils configuring a common mode choke coil and functions as an inductor against a normal mode AC current. A coil component includes a pot-type core formed in a box-like shape, a flat plate core, coils, and a partition core formed of a magnetic substance. The coils are accommodated inside the pot-type core and form a common mode choke coil by making the central axes thereof substantially match each other. Further, each of end portions of the coils function as outer electrodes. The partition core is provided between the coils.
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公开(公告)号：US11651888B2
公开(公告)日：2023-05-16
申请号：US16264404
申请日：2019-01-31
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Akio Igarashi , Kazuhiko Takenaka , Shigeto Yamamoto , Ryota Hashimoto , Yuki Kanbe
CPC classification number: H01F27/29 , H01F17/04 , H01F17/045 , H01F27/2823 , H01F27/292 , H01F41/02 , H01F3/10 , H01F2017/0093
Abstract: A flange portion includes a projecting surface that is positioned in a leading end of a projection projecting toward a mounting substrate and that faces the mounting substrate, and a principal surface that extends in a direction crossing the projecting surface and that faces a direction in which the pair of flange portions are aligned. A metal terminal includes a mounting portion opposed to the projecting surface and an end surface portion opposed to the principal surface. An angle θ between the mounting portion and the end surface portion satisfies the relationship 85 degrees≤θ
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公开(公告)号：US11594365B2
公开(公告)日：2023-02-28
申请号：US16849903
申请日：2020-04-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuuji Igarashi , Akio Igarashi
Abstract: A coil component includes a wire; a core having a winding core around which the wire is wound and a flange portion provided at an end portion of the winding core in an axial direction; and a terminal electrode to which the wire is connected and that is provided on the flange portion. The terminal electrode has a projecting portion that sticks out in the axial direction relative to the flange portion. The projecting portion has a flat surface along which the wire is thermocompression-bonded. Thermocompression bonding of the wire is performed in a state where an interval between a head surface of a heater chip and the flat surface becomes narrower from a flange portion side toward a front end side of the projecting portion. A degree of crushing of the wire decreases from the front end side toward the flange portion side of the projecting portion.
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Patent Agency Ranking
公开(公告)号：US10861638B2
公开(公告)日：2020-12-08
申请号：US15898094
申请日：2018-02-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Akio Igarashi
Abstract: A coil component comprises a wire and a terminal electrode. The wire includes a linear central conductor and an insulating coating layer that covers a circumferential surface of the central conductor. The terminal electrode is electrically connected to the central conductor at an end portion of the wire, and includes a metallic plate. The terminal electrode also includes an edge portion in contact with the wire. The edge portion is chamfered.
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公开(公告)号：US10388453B2
公开(公告)日：2019-08-20
申请号：US15481058
申请日：2017-04-06
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Akio Igarashi , Koji Onishi , Takashi Murakami
Abstract: A coil component including a wire has a central conductor and an insulating coating layer, and a terminal electrode has a connection part that is electrically connected to the central conductor. The connection part includes a receiving part that receives an end portion of the wire, and a welding part that extends from the receiving part via a fold-back part so as to face the receiving part. The wire becomes sandwiched between the receiving part and the welding part. The central conductor is welded to the welding part in the portion from which the insulating coating layer is removed. The distal end portion of the wire protrudes from the space between the receiving part and the welding part, with the insulating coating layer remaining on the distal end portion.
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公开(公告)号：US10141098B2
公开(公告)日：2018-11-27
申请号：US15014605
申请日：2016-02-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Akio Igarashi
IPC: H01F27/29 , H01F27/24 , H01F17/04 , H01F27/28 , H01F27/255
Abstract: A coil component has a core having a winding core portion and first and second flange portions, a plurality of wires wound around the winding core portion, and a plurality of electrode portions disposed on the first and second flange portions. The first wire and the third wire cross each other on the first flange portion. The first flange portion has a groove at a position of crossing of the first wire and the third wire. The first wire on the lower side passes through the groove so that the first wire and the third wire are separated from each other.
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公开(公告)号：US09859048B2
公开(公告)日：2018-01-02
申请号：US15393560
申请日：2016-12-29
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Akio Igarashi
CPC classification number: H01F17/045 , H01F3/10 , H01F27/2823 , H01F27/29 , H01F27/292
Abstract: The sum of the area of a region occupied by a top surface of a first flange portion and the area of a region occupied by a top surface of a second flange portion is ⅔ or larger the area of an imaginary quadrangle defined by two vertices on the side of the outer periphery of the top surface of the first flange portion, and two vertices on the side of the outer periphery of the top surface of the second flange portion.
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公开(公告)号：US11798732B2
公开(公告)日：2023-10-24
申请号：US17322752
申请日：2021-05-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Akio Igarashi , Kentaro Yamaguchi
CPC classification number: H01F27/29 , H01F17/04 , H01F27/24 , H01F27/2823 , H01F27/2828 , H01F27/292 , H01F41/10
Abstract: A method for manufacturing a coil component includes preparing a wire; preparing a terminal electrode formed from a metal plate having a flat surface to which an end portion of the wire is to be connected, a low surface that is lower in a thickness direction of the terminal electrode than the flat surface, and a shift surface that connects the flat surface to the low surface and that increases a height in the thickness direction from the low surface to the flat surface; placing the end portion of the wire on the flat surface such that the wire is provided sequentially along the flat surface, the shift surface, and the low surface in this order from the end portion thereof; and thermally pressure-bonding the end portion of the wire to the flat surface such that the heated chip is pressed so that an edge thereof overlaps the low surface.
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