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公开(公告)号:US20230245815A1
公开(公告)日:2023-08-03
申请号:US18299568
申请日:2023-04-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Kenichi ARAKI , Keiichi ISHIDA
IPC: H01F27/28 , H01F41/02 , H01F27/32 , H01F41/12 , H01F27/255 , H01F41/063 , H01F27/29
CPC classification number: H01F27/2823 , H01F41/0246 , H01F27/327 , H01F41/127 , H01F27/255 , H01F41/063 , H01F27/29
Abstract: A coil component is capable of suppressing occurrence of peeling at an interface between a coil conductor and resin in a magnetic portion due to heating during mounting. The coil component includes an element body that includes a coil conductor formed by winding a conductive wire coated with an insulating film, and a magnetic portion that contains metal magnetic particles and resin, and external electrodes that are electrically connected to exposed surfaces of extended portions of the coil conductor exposed on a surface of the element body, and are arranged on the surface of the element body. The metal magnetic particles are arranged in recesses formed in a surface of the conductive wire in the extended portions of the coil conductor.
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公开(公告)号:US20170076851A1
公开(公告)日:2017-03-16
申请号:US15258492
申请日:2016-09-07
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor: Kenichi ARAKI
Abstract: A coil component including: a magnetic body containing a magnetic material and a resin; a coil buried in the magnetic body; and a pair of outer electrodes electrically connected to the coil. One or more side faces of the magnetic body have a groove, and the groove contains a silicone resin.
Abstract translation: 一种线圈部件,包括:包含磁性材料和树脂的磁体; 埋在磁体中的线圈; 以及电连接到线圈的一对外部电极。 磁体的一个或多个侧面具有凹槽,并且凹槽包含硅树脂。
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公开(公告)号:US20210098181A1
公开(公告)日:2021-04-01
申请号:US16935133
申请日:2020-07-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Kenichi ARAKI , Keiichi ISHIDA , Yutaka NOGUCHI
IPC: H01F27/28 , H01F27/255 , H01F27/29 , H01F41/04 , H01F41/02
Abstract: A coil component including a substantially rectangular parallelepiped first magnetic portion that includes a coil conductor and a second magnetic portion disposed on at least the upper surface of the first magnetic portion. The first magnetic portion contains first magnetic particles including a metal magnetic material, the second magnetic portion contains second magnetic particles and a resin, and the resin content in the second magnetic portion is higher than the resin content in the first magnetic portion.
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公开(公告)号:US20180247764A1
公开(公告)日:2018-08-30
申请号:US15967126
申请日:2018-04-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Keita MUNEUCHI , Eiji ISO , Isao IDA , Kenichi ARAKI , Noriko SHIMIZU , Takashi TOMOHIRO
CPC classification number: H01F41/205 , B22F1/02 , B22F3/24 , B22F2998/10 , B22F2999/00 , C22C32/0094 , C22C2202/02 , H01F1/14733 , H01F1/20 , H01F1/22 , H01F17/0013 , H01F17/04 , H01F27/255 , H01F27/292 , H01F41/046 , H01F41/06 , H01F2017/0066 , H01F2017/048 , B22F1/0059 , B22F2003/248 , B22F2202/01
Abstract: An electronic component includes an element body made of a composite material of a resin material and metal powder. A plurality of particles of the metal powder are exposed from the resin material and make contact with one another on the outer surface of the element
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公开(公告)号:US20230086105A1
公开(公告)日:2023-03-23
申请号:US17932733
申请日:2022-09-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Yoshimasa YOSHIOKA , Yutaka NOGUCHI , Mari YONEMURA , Kenichi ARAKI , Kouji YAMAUCHI
IPC: H01F27/29 , H01F27/255 , H01F41/04 , H01F41/02
Abstract: An inductor component includes an element body, a coil, and a first outer electrode and a second outer electrode, in which the coil includes a coil wiring, a first extended wiring, and a second extended wiring. The first extended wiring includes a first connection surface connected to the coil wiring and a second connection surface connected to the first outer electrode, and a first straight line connecting the first connection surface and the second connection surface is inclined to the direction orthogonal to the first main surface.
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公开(公告)号:US20180247747A1
公开(公告)日:2018-08-30
申请号:US15967062
申请日:2018-04-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Takashi TOMOHIRO , Noriko SHIMIZU , Kenichi ARAKI , Eiji ISO , Keita MUNEUCHI , Isao IDA
CPC classification number: H01F1/20 , B22F1/02 , B22F3/24 , B22F2998/10 , B22F2999/00 , C22C32/0094 , C22C2202/02 , H01F1/14733 , H01F1/14766 , H01F1/22 , H01F17/04 , H01F27/255 , H01F27/292 , H01F41/10 , H01F2017/048 , B22F2003/248 , B22F2202/01 , B22F1/0059
Abstract: A coil component includes a body that is made of a composite material containing a resin material and metal powder, a coil conductor which is provided in the body and an end portion of which is exposed on an end face of the body, and a metal film that is provided on an outer surface of the body and that is electrically connected to the coil conductor on the end face in the outer surface. The outer surface of the body has a contact area that is in contact with the metal film. Multiple particles of the metal powder escape from the resin material and are in contact with each other in the contact area of the body.
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公开(公告)号:US20180182537A1
公开(公告)日:2018-06-28
申请号:US15846287
申请日:2017-12-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Noriko SHIMIZU , Kenichi ARAKI
CPC classification number: H01F27/29 , H01F1/14766 , H01F17/04 , H01F27/24 , H01F27/292 , H01F41/0246 , H01F2017/046 , H01F2017/048
Abstract: An electronic component includes a body having a recessed portion, an inner conductor embedded in the body, and an outer electrode electrically connected to the inner conductor. At least part of the outer electrode is disposed in the recessed portion of the body. The electronic component further includes an insulating layer configured such that at least part of the outer electrode is covered with the insulating layer.
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公开(公告)号:US20180144859A1
公开(公告)日:2018-05-24
申请号:US15820059
申请日:2017-11-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Kenichi ARAKI
IPC: H01F27/28 , H01F17/04 , H01F27/255 , H01F1/147 , H01F27/29
Abstract: The coil component includes a magnetic body containing a metallic material and a resin material, a coil conductor embedded in the magnetic body, and a pair of outer electrodes electrically connected to ends of the coil conductor. The coil conductor includes an exposed portion at each end portion of the coil conductor, and a covered portion covered with an insulating substance disposed between the exposed portions. The covered portion is disposed inside a face of the magnetic body on which the outer electrodes are disposed.
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公开(公告)号:US20230191484A1
公开(公告)日:2023-06-22
申请号:US18169123
申请日:2023-02-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Takashi TOMOHIRO , Noriko SHIMIZU , Kenichi ARAKI , Eiji ISO , Keita MUNEUCHI , Isao IDA
IPC: B22F3/24 , H01F17/04 , H01F41/10 , C22C32/00 , H01F1/22 , B22F1/102 , H01F1/147 , H01F1/20 , H01F27/255 , H01F27/29
CPC classification number: B22F3/24 , H01F17/04 , H01F41/10 , C22C32/0094 , H01F1/22 , B22F1/102 , H01F1/14733 , H01F1/14766 , H01F1/20 , H01F27/255 , H01F27/292 , C22C2202/02 , B22F2998/10 , B22F2999/00 , H01F2017/048
Abstract: A coil component includes a body that is made of a composite material containing a resin material and metal powder, a coil conductor which is provided in the body and an end portion of which is exposed on an end face of the body, and a metal film that is provided on an outer surface of the body and that is electrically connected to the coil conductor on the end face in the outer surface. The outer surface of the body has a contact area that is in contact with the metal film. Multiple particles of the metal powder escape from the resin material and are in contact with each other in the contact area of the body.
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公开(公告)号:US20220415567A1
公开(公告)日:2022-12-29
申请号:US17929909
申请日:2022-09-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor: Kenichi ARAKI , Keiichi Ishida , Minoru Gibu
Abstract: A highly reliable coil component having reduced electric resistance and improved bonding strength in a connection portion between a coil conductor and an external electrode. A coil component includes an element body including a coil conductor including a wound conductive wire coated with an insulating film, a magnetic portion containing metal magnetic particles and resin, and an external electrode on a surface of the element body and electrically connected to exposed surfaces, which are exposed on the surface of the element body, of extended portions of the coil conductor. The external electrode includes at least one or more layers. When an average crystal grain size of crystal grains constituting the coil conductor is defined as a and an average crystal grain size of crystal grains constituting a base electrode layer of the external electrode directly connected to the coil conductor is defined as b, a>b is satisfied.
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