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公开(公告)号：US20210241969A1
公开(公告)日：2021-08-05
申请号：US17165621
申请日：2021-02-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kouhei MATSUURA , Atsuo HIRUKAWA , Hiroshi UEKI
Abstract: A common-mode choke coil includes a multilayer body, a first coil, a second coil, a first terminal electrode, a second terminal electrode, a third terminal electrode, and a fourth terminal electrode. The multilayer body includes plural non-conductor layers. The first and second coils are incorporated in the multilayer body. The first and second terminal electrodes are connected to the first coil. The third and fourth terminal electrodes are connected to the second coil. The first coil has a path length L1, the second coil has a path length L2, and the sum of the path length L1 and the path length L2 is less than or equal to 3.5 mm.
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公开(公告)号：US20250132083A1
公开(公告)日：2025-04-24
申请号：US19005899
申请日：2024-12-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuudai SUZUKI , Katsuhisa IMADA , Makoto HIRAKI , Ikuno SUGIYAMA , Hiroshi UEKI
Abstract: A laminated coil component includes a multilayer body in which a coil, which is obtained by electrically connecting a plurality of coil conductors with a via conductor interposed therebetween, is provided in an inside of an insulator portion which is obtained by laminating a plurality of insulation layers. Each of a first coil conductor and a second coil conductor that are adjacent to each other in a lamination direction and are electrically connected in series with a first via conductor interposed therebetween includes a first main surface that faces the opposite direction to the lamination direction and on which a void exists. The second coil conductor includes a second main surface that faces the lamination direction and on which another void exists, and the other void locally exists on a position opposed to the first via conductor.
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公开(公告)号：US20220189674A1
公开(公告)日：2022-06-16
申请号：US17548405
申请日：2021-12-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuudai SUZUKI , Katsuhisa IMADA , Makoto HIRAKI , Ikuno SUGIYAMA , Hiroshi UEKI
Abstract: A laminated coil component includes a multilayer body in which a coil, which is obtained by electrically connecting a plurality of coil conductors with a via conductor interposed therebetween, is provided in an inside of an insulator portion which is obtained by laminating a plurality of insulation layers. Each of a first coil conductor and a second coil conductor that are adjacent to each other in a lamination direction and are electrically connected in series with a first via conductor interposed therebetween includes a first main surface that faces the opposite direction to the lamination direction and on which a void exists. The second coil conductor includes a second main surface that faces the lamination direction and on which another void exists, and the other void locally exists on a position opposed to the first via conductor.
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Patent Agency Ranking
公开(公告)号：US20210241970A1
公开(公告)日：2021-08-05
申请号：US17165733
申请日：2021-02-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kouhei MATSUURA , Atsuo HIRUKAWA , Hiroshi UEKI
Abstract: A common-mode choke coil includes a multilayer body, a first coil, and a second coil. The multilayer body includes plural stacked non-conductor layers. The first and second coils are incorporated in the multilayer body. The first coil includes a first coil conductor. The second coil includes a second coil conductor disposed along an interface between non-conductor layers different from an interface between non-conductor layers along which the first coil conductor is disposed. With the first coil conductor and the second coil conductor being viewed in plan in the stacking direction of the multilayer body, the first coil conductor and the second coil conductor have no portion where the two coil conductors overlap each other, except for a portion where the two coil conductors cross each other.
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公开(公告)号：US20190206612A1
公开(公告)日：2019-07-04
申请号：US16222676
申请日：2018-12-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Keiichi TSUDUKI , Kouhei MATSUURA , Hiroshi UEKI
CPC classification number: H01F27/292 , H01F27/2804 , H01F41/10 , H01F2027/2809
Abstract: A coil component includes a device main body composed of an insulator, a coil conductor which is disposed inside or on a surface of the device main body, and an outer electrode which is disposed on a surface of the device main body and electrically connected to the coil conductor. The outer electrode includes a Ag-containing layer containing Ag grains with an average grain size of 4.2 to 15 μm.
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公开(公告)号：US20210241959A1
公开(公告)日：2021-08-05
申请号：US17165712
申请日：2021-02-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kouhei MATSUURA , Atsuo HIRUKAWA , Hiroshi UEKI
Abstract: A common-mode choke coil includes a multilayer body, and first and second coils incorporated in the multilayer body. The multilayer body is a cuboid shape including plural stacked non-conductor layers. The first coil includes a first coil conductor. The second coil includes a second coil conductor. With the common-mode choke coil, in a frequency region greater than or equal to 0.1 GHz and less than or equal to 100 GHz (i.e., from 0.1 GHz to 100 GHz), the Sdd21 transmission characteristic is less than or equal to −3 dB at or above 30 GHz, and in a frequency region greater than or equal to 10 GHz and less than or equal to 60 GHz (i.e., from 10 GHz to 60 GHz), the Scc21 transmission characteristic is minimum at or above 20 GHz, and the Scc21 transmission characteristic has a minimum value of less than or equal to −20 dB.
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公开(公告)号：US20210241958A1
公开(公告)日：2021-08-05
申请号：US17165699
申请日：2021-02-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kouhei MATSUURA , Atsuo HIRUKAWA , Hiroshi UEKI
Abstract: A common-mode choke coil includes a multilayer body, a first coil, and a second coil. The multilayer body is a cuboid in shape that includes plural stacked non-conductor layers. The first and second coils are incorporated in the multilayer body. The first coil includes a first coil conductor, and the second coil includes a second coil conductor. The first coil conductor is positioned with gaps SG1 to SG4 interposed between the first coil conductor and the outer periphery surface of the multilayer body. The second coil conductor is positioned with gaps SG5 to SG8 interposed between the second coil conductor and the outer periphery surface of the multilayer body. Of the four absolute values of the differences between the gaps SG1 to SG4 and the corresponding gaps SG5 to SG8, at least two absolute values are greater than or equal to 0.02 mm.
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公开(公告)号：US20210241957A1
公开(公告)日：2021-08-05
申请号：US17165647
申请日：2021-02-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kouhei MATSUURA , Atsuo HIRUKAWA , Hiroshi UEKI
Abstract: A common-mode choke coil includes a multilayer body, a first coil, a second coil, a first terminal electrode, a second terminal electrode, a third terminal electrode, and a fourth terminal electrode. The multilayer body includes plural non-conductor layers. The first and second coils are incorporated in the multilayer body. The first and second terminal electrodes are connected to the first coil. The third and fourth terminal electrodes are connected to the second coil. The first coil includes a first coil conductor. The second coil includes a second coil conductor disposed along an interface between non-conductor layers different from an interface between non-conductor layers along which the first coil conductor is disposed. The first and second coil conductors each have a number of turns of less than 2.
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