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公开(公告)号：US12020848B2
公开(公告)日：2024-06-25
申请号：US17133541
申请日：2020-12-23
发明人： Shun Takai
CPC分类号： H01F27/292 , H01F17/0013 , H01F27/34 , H01F2027/2809
摘要： A multilayer coil component includes an insulator portion, a coil embedded in the insulator portion and including a plurality of coil conductor layers electrically connected together, and an outer electrode disposed on a surface of the insulator portion and electrically connected to the coil. At least one of the coil conductor layers includes an extended portion and a winding portion, and is connected to the outer electrode via the extended portion. The area S of an exposed portion of the extended portion exposed from the insulator portion is 0.018 mm2 or more.
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公开(公告)号：US11050403B2
公开(公告)日：2021-06-29
申请号：US16556142
申请日：2019-08-29
发明人： Tarou Higuchi , Yoshihiro Imanishi , Yasushi Saito , Shun Takai , Miyuki Nojiri
摘要： A circuit module includes a wiring board on which are provided a ground plane, a signal line, and a conductive pattern for connection to an outer conductor of a coaxial cable including an inner conductor and the outer conductor. A common-mode choke coil is mounted on the wiring board such that one of coils of the common-mode choke coil connects the ground plane and the conductive pattern and that the other coil is inserted in the signal line. A communication element is mounted on the wiring board and includes a first signal terminal and a second signal terminal. The first signal terminal is connected to the common-mode choke coil via the signal line, and the second signal terminal is connected to the ground plane. A first capacitor is inserted in series in the signal line between the common-mode choke coil and the first signal terminal.
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公开(公告)号：US12073987B2
公开(公告)日：2024-08-27
申请号：US17133496
申请日：2020-12-23
发明人： Shun Takai , Atsuo Hirukawa
CPC分类号： H01F27/324 , H01F17/0013 , H01F27/292
摘要： A multilayer coil component includes an insulator portion, a coil embedded in the insulator portion and including a plurality of coil conductor layers electrically connected together, and an outer electrode disposed on a surface of the insulator portion and electrically connected to the coil. The insulator portion is a multilayer body including first and second insulator layers. The coil conductor layers and the second insulator layers are disposed on the first insulator layers. The multilayer coil component has void layers (e.g., voids) between the first insulator layers and at least a portion of the coil conductor layers. If the thickness of the first insulator layers is a, the thickness of the coil conductor layers is b, and the thickness of the void layers is c, the ratio of c to b (c/b) is 0.10 to 0.70, and the ratio of a to b (a/b) is 0.25 to 1.00.
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公开(公告)号：US12020847B2
公开(公告)日：2024-06-25
申请号：US17131573
申请日：2020-12-22
发明人： Shun Takai , Makoto Yamamoto
CPC分类号： H01F27/292 , H01F17/0013 , H01F27/324 , H01F41/041
摘要： A multilayer coil component includes an insulator portion, a coil embedded in the insulator portion and including a plurality of coil conductor layers electrically connected together, and an outer electrode disposed on a surface of the insulator portion and electrically connected to the coil. The coil conductor layers have a thickness of 30 μm to 60 μm. The coil conductor layers are rectangular and include a corner portion with a radius of curvature of 0.08 mm to 0.24 mm.
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公开(公告)号：US11961655B2
公开(公告)日：2024-04-16
申请号：US17133436
申请日：2020-12-23
发明人： Shun Takai
CPC分类号： H01F27/324 , H01F17/0013 , H01F27/2804 , H01F27/292 , H01F2017/002
摘要： A multilayer coil component includes an insulator portion, a coil in the insulator portion and including coil conductor layers electrically connected together, and an outer electrode on a surface of the insulator portion and electrically connected to the coil. The multilayer coil component has a void at a boundary between one main surface of each coil conductor layer and the insulator portion. At least one of the coil conductor layers includes extended and winding portions, and is connected to the electrode via the extended portion. Viewing the multilayer coil component in plan view in a stacking direction, an end of the void at the extended portion facing the electrode to which the extended portion is connected is closer to the electrode than is an end, facing the electrode, of the void at the coil conductor layer to which the extended portion is adjacent in the stacking direction.
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公开(公告)号：US12106883B2
公开(公告)日：2024-10-01
申请号：US17463211
申请日：2021-08-31
发明人： Shun Takai , Atsuo Hirukawa , Kenjirou Koshiji
CPC分类号： H01F27/2804 , C03C3/089 , C03C4/16 , C03C14/004 , H01F27/29 , H01F27/32 , C03C2204/00 , C03C2214/04 , H01F2027/2809
摘要： A multilayer coil component includes a multilayer body in which a plurality of insulating layers are stacked and inside of which a coil is provided, and first and second outer electrodes provided on surfaces of the multilayer body and electrically connected to the coil. The multilayer body has first and second end surfaces, first and second main surfaces, and first and second side surfaces. The first outer electrode extends from at least part of the first end surface of the multilayer body across part of the first main surface and the second outer electrode extends from at least part of the second end surface of the multilayer body across part of the first main surface. A transmission coefficient S21 is −1.0 dB or higher in a range from 1 GHz to 40 GHz and is −1.5 dB or higher in a range from 40 GHz to 60 GHz.
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公开(公告)号：US11551852B2
公开(公告)日：2023-01-10
申请号：US16775087
申请日：2020-01-28
发明人： Shun Takai , Masayuki Oishi
摘要： A multilayer coil component including an element assembly that includes an insulator portion and a coil embedded in the insulator portion and composed of a plurality of coil conductors electrically connected to each other, an extension portion disposed at each end portion of the coil, and an outer electrode disposed on the surface of the insulator portion and electrically connected to the extension portion. The thickness of the coil conductor in the extension portion of the coil is about 1.05 times or more and 2.0 times or less (i.e., from about 1.05 times to 2.0 times) the thickness of the coil conductor in a winding portion of the coil.
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公开(公告)号：US10855172B2
公开(公告)日：2020-12-01
申请号：US15833208
申请日：2017-12-06
发明人： Kenichi Ito , Shun Takai , Koichi Yamaguchi
摘要： A shield includes an inductor that includes outer electrodes and that is mounted on a substrate in or on which a wiring pattern is formed, a second capacitor that is electrically connected between one of the outer electrodes of the inductor and a ground pattern formed in or on the substrate, and a shield member that is disposed so as to cover the inductor and electrically connected to the one of the outer electrodes of the inductor, to which the second capacitor is connected. The second capacitor has frequency characteristics such that, when the self-resonance frequency of the second capacitor serves as a boundary, the impedance of the second capacitor decreases as the frequency increases on the low frequency side and that the impedance of the second capacitor increases as the frequency increases on the high frequency side.
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