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    COIL COMPONENT
    1.
    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
    2.
    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.

    COIL COMPONENT
    3.
    发明申请
    COIL COMPONENT 有权

    公开(公告)号：US20210166859A1

    公开(公告)日：2021-06-03

    申请号：US17109426

    申请日：2020-12-02

    Applicant: TDK CORPORATION

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

    IPC: H01F27/28 ,  H01F27/29 ,  H01F27/24

    Abstract: In a coil component, a first planar coil and a second planar coil are wound around a common magnetic core and are magnetically coupled to each other. However, the first planar coil and the second planar coil are not electrically connected to each other and form coil structures which are separate from each other. Thus, as compared with a case in which the first planar coil and the second planar coil form one coil structure, the first planar coil and the second planar coil are less likely to affect each other's characteristics.

    MULTILAYER COIL COMPONENT
    4.
    发明申请
    MULTILAYER COIL COMPONENT 审中-公开
    多层线圈组件

    公开(公告)号：US20170025219A1

    公开(公告)日：2017-01-26

    申请号：US15213962

    申请日：2016-07-19

    Applicant: TDK CORPORATION

    Inventor： Yuusuke NAGAI ,  Masazumi ARATA ,  Kenji KOMORITA ,  Yoshimitsu SATOH

    IPC: H01F27/28

    CPC classification number: H01F17/0013 ,  H01F2017/002

    Abstract: In a multilayer coil component, even when both pairs of ends of a first coil part and a second coil part are located at the same positions when viewed from the laminated direction and have the same shapes, a connecting part is connected only to a second end of the first coil part on the upper side in the laminated direction, and is connected only to a first end of the second coil part on the lower side in the laminated direction. Thus, a coil wound around along the laminated direction is structured without misaligning the positions of respective connecting parts. Consequently, the entire shapes of the respective coil parts can be designed to be the exact same shape, which makes it possible to reduce the number of types of coil part, saving labor and time for preparing many types of conductor patterns like the conventional type.

    Abstract translation: 在多层线圈部件中，即使当从层叠方向观察时第一线圈部和第二线圈部的两对端位于相同的位置并且具有相同的形状，连接部仅连接到第二端 的第一线圈部分在层叠方向上的上侧，并且仅在层叠方向的下侧仅连接到第二线圈部的第一端。 因此，沿着层叠方向缠绕的线圈被构造成不对准各连接部的位置。 因此，各线圈部件的整体形状可以被设计成完全相同的形状，这使得可以减少线圈部件的数量，节省了用于制备诸如常规类型的许多类型导体图案的人力和时间。

    COIL COMPONENT
    5.
    发明公开
    COIL COMPONENT 审中-公开

    公开(公告)号：US20240331904A1

    公开(公告)日：2024-10-03

    申请号：US18616465

    申请日：2024-03-26

    Applicant: TDK CORPORATION

    Inventor： Hitoshi OHKUBO ,  Hokuto EDA ,  Masazumi ARATA ,  Miyuki ASAI ,  Takahiro HOSOKAWA ,  Yuji MATSUURA

    IPC: H01F3/08 ,  H01F5/04

    CPC classification number: H01F3/08 ,  H01F5/04

    Abstract: Since each of an inner core, an outer core portion, and exterior portions in an element body is constituted by a magnetic body having the same material composition, internal stress is less likely to occur at the interface therebetween, and cracks due to internal stress are less likely to occur at the interface. Since a filling rate of a maximum magnetic particle having relatively high magnetic permeability is high in the inner core, the magnetic permeability of the inner core is significantly increased, and the coil characteristics of the coil component are improved.

    COIL COMPONENT
    6.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20200373064A1

    公开(公告)日：2020-11-26

    申请号：US16877772

    申请日：2020-05-19

    Applicant: TDK CORPORATION

    Inventor： Miyuki ASAI ,  Hokuto EDA ,  Masazumi ARATA ,  Hitoshi OHKUBO

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

    Abstract: In a coil component, an uneven structure provided by an insulation layer and a resin wall contributes to extension of a contact area with respect to a magnetic body, so that an adhesive force with respect to the magnetic body is improved. In addition, the magnetic body protrudes downward toward an exposed region of the resin wall corresponding to a recessed portion in the uneven structure, a volume thereof is increased, and coil characteristics such as an inductance value are improved.

    COIL COMPONENT
    7.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20200373061A1

    公开(公告)日：2020-11-26

    申请号：US16877898

    申请日：2020-05-19

    Applicant: TDK CORPORATION

    Inventor： Miyuki ASAI ,  Takahiro KAWAHARA ,  Masazumi ARATA ,  Hitoshi OHKUBO

    IPC: H01F27/255 ,  H01F5/06

    Abstract: In a coil component, a second magnetic portion disposed in the vicinity of a coil is designed to have a higher proportion of Fe than a metal magnetic powder-containing resin constituting a first magnetic portion. Therefore, a magnetic flux of the coil flows smoothly. Although the second magnetic portion has a relatively lower withstand voltage than the first magnetic portion, since the second magnetic portion is surrounded by the first magnetic portion, it is not exposed on an outer surface of a magnetic body. For this reason, a situation in which the coil and external terminal electrodes are short-circuited with the second magnetic portion therebetween is effectively curbed, and short-circuiting between the coil and the external terminal electrodes can be curbed.

    COIL COMPONENT
    10.
    发明公开
    COIL COMPONENT 审中-公开

    公开(公告)号：US20240331926A1

    公开(公告)日：2024-10-03

    申请号：US18618214

    申请日：2024-03-27

    Applicant: TDK Corporation

    Inventor： Manabu OHTA ,  Ryo FUKUOKA ,  Yuji MATSUURA ,  Hokuto EDA ,  Takahiro NEMOTO ,  Kenei ONUMA ,  Masazumi ARATA ,  Hitoshi OHKUBO

    IPC: H01F27/29 ,  H01F5/04

    CPC classification number: H01F27/29 ,  H01F5/04

    Abstract: In the coil component, the lower end portion of the bump electrode protruding from the lower surface of the element body includes a flange portion, and the lower surface of the lower end portion is concave-convex. Therefore, compared to the case where the bump electrode is exposed in the form of a flat surface so as to be flat with the lower surface of the element body, the contact areas between the bump electrodes and the terminal electrodes are increased, and high connection reliability between the bump electrodes and the terminal electrodes is realized.

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