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    COIL COMPONENT
    1.
    发明公开
    COIL COMPONENT 审中-公开

    公开(公告)号：US20240136116A1

    公开(公告)日：2024-04-25

    申请号：US18490358

    申请日：2023-10-18

    Applicant: TDK CORPORATION

    Inventor： Hokuto EDA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI ,  Hiroki ASAFUSA ,  Takahiro NEMOTO

    IPC: H01F27/29 ,  H01F27/28 ,  H01F27/30

    CPC classification number: H01F27/292 ,  H01F27/2804 ,  H01F27/306

    Abstract: Since the coil body of the coil component includes a plurality of coils and the first coil is one of the plurality of coils included in the coil body, the current route from the external terminal of the first to the outer peripheral turn of the second coil portion where stray capacitance occurs is significantly shorter than the route of current flowing between the pair of external terminals, and the voltage drop in the outer peripheral turn of the second coil portion is relatively small, so that stray capacitance between the second coil portion and the first external terminal is small.

    COIL COMPONENT
    2.
    发明公开
    COIL COMPONENT 审中-公开

    公开(公告)号：US20240136109A1

    公开(公告)日：2024-04-25

    申请号：US18490293

    申请日：2023-10-18

    Applicant: TDK CORPORATION

    Inventor： Hokuto EDA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI ,  Hiroki ASAFUSA ,  Takahiro NEMOTO

    IPC: H01F27/28

    CPC classification number: H01F27/2852

    Abstract: The coil body of the coil component includes a first coil, a second coil, and a third coil arranged in order along one direction when viewed from the facing direction of the pair of main surfaces of the element body. The first coil, the second coil, and the third coil have alternating winding directions, and the number of turns of the second coil is relatively small, thereby improving the characteristics of the coil component.

    COIL COMPONENT
    5.
    发明申请
    COIL COMPONENT 有权

    公开(公告)号：US20220392698A1

    公开(公告)日：2022-12-08

    申请号：US17829513

    申请日：2022-06-01

    Applicant: TDK CORPORATION

    Inventor： Hokuto EDA ,  Hitoshi OHKUBO ,  Masazumi ARATA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

    IPC: H01F27/32 ,  H01F27/29 ,  H01F27/255

    Abstract: A coil component improving insulation between external terminals provided on the same surface of an element body is provided. In the coil component, when a voltage is applied via the external terminal electrode, for example, a potential difference may occur between the outer end portions. In the coil component, since the insulation between the outer end portions is enhanced by the upper insulator exposed on the end face of the element body, even when a potential difference occurs between the outer end portions, a situation in which the outer end portions are short-circuited on the end face is prevented.

    COIL COMPONENT
    6.
    发明申请
    COIL COMPONENT 有权

    公开(公告)号：US20210327637A1

    公开(公告)日：2021-10-21

    申请号：US17234029

    申请日：2021-04-19

    Applicant: TDK CORPORATION

    Inventor： Hokuto EDA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI ,  Hitoshi OHKUBO ,  Masazumi ARATA

    IPC: H01F27/28 ,  H01F27/29 ,  H01F27/255 ,  H01F27/32

    Abstract: In an insulation layer of a coil component, a thickness of a second covering part and a third covering part located on the penetration hole side of a first covering part is thinner than that of the first covering part. A stray capacitance occurring between a flat coil pattern and external terminal electrodes is reduced by making the first covering part of the insulation layer thicker than the second covering part and the third covering part. Further, since the second covering part and the third covering part of the insulation layers are thinner than the first covering part, a magnetic volume is increased while external dimensions of the base body is maintained, and thus a high inductance is realized.

    COIL COMPONENT
    8.
    发明申请
    COIL COMPONENT 有权

    公开(公告)号：US20230063586A1

    公开(公告)日：2023-03-02

    申请号：US17898767

    申请日：2022-08-30

    Applicant: TDK CORPORATION

    Inventor： Hokuto EDA ,  Hitoshi OHKUBO ,  Masazumi ARATA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

    IPC: H01F1/14 ,  H01F5/04 ,  H01F5/06

    Abstract: Since the magnetic sheet is adopted as the coil component, magnetic saturation is likely to occur in the magnetic sheet, and it is considered that the DC superimposition characteristic of the coil component is deteriorated. However, since the inner edge of the coil structure backs down with respect to the inner edge of the magnetic sheet so that the magnetic flux generated in the coil easily circulates, the deterioration of the DC superimposition characteristics due to the adoption of the magnetic sheet is suppressed.

    COIL COMPONENT
    9.
    发明申请
    COIL COMPONENT 有权

    公开(公告)号：US20210327641A1

    公开(公告)日：2021-10-21

    申请号：US17233790

    申请日：2021-04-19

    Applicant: TDK CORPORATION

    Inventor： Hokuto EDA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

    IPC: H01F27/28 ,  H01F27/255

    Abstract: In a coil component, a stray capacitance may occur between a conducting wires of an upper layer and a conducting wires of a lower layer arranged in the vertical direction due to the potential difference between them. In the coil component, a separation distance between the conducting wire of the upper layer and the conducting wire of the lower layer is designed to be longer than twice a thickness of an insulation coating of a portion covering a side surface of the conducting wire, and a sufficiently long distance is secured, and thus the stray capacitance is reduced.

    COIL COMPONENT
    10.
    发明申请
    COIL COMPONENT 有权

    公开(公告)号：US20210193369A1

    公开(公告)日：2021-06-24

    申请号：US17126323

    申请日：2020-12-18

    Applicant: TDK CORPORATION

    Inventor： Masataro SAITO ,  Masazumi ARATA ,  Hokuto EDA ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

    IPC: H01F27/28 ,  H01F27/255 ,  H01F27/32

    Abstract: In a coil component, a non-magnetic part is bridged between a first coil and a second coil in a cross section of an element body. Therefore, a magnetic flux in a direction along a magnetic core of the first coil and a magnetic core of the second coil is hindered by the non-magnetic part between the first coil and the second coil. Accordingly, a magnetic flux of the first coil and a magnetic flux of the second coil are difficult to interfere with each other.

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