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    MULTILAYER COIL COMPONENT
    21.
    发明申请
    MULTILAYER COIL COMPONENT 审中-公开

    公开(公告)号：US20200303117A1

    公开(公告)日：2020-09-24

    申请号：US16816891

    申请日：2020-03-12

    Applicant: TDK CORPORATION

    Inventor： Shinichi SATO ,  Takahiro SATO ,  Yusuke NAGAI ,  Mitsuharu KOIKE ,  Kazuhiro MIURA ,  Seiichi NAKAGAWA ,  Shinichi KONDO ,  Takashi SUZUKI

    IPC: H01F27/32 ,  H01F27/28

    Abstract: A multilayer coil component includes an element body and a plurality of coil conductors. The element body includes a plurality of metal magnetic particles and resin existing between the plurality of metal magnetic particles. The plurality of coil conductors is disposed in the element body, the plurality of coil conductors being separated from each other in a predetermined direction and electrically connected to each other. The plurality of metal magnetic particles included in the element body includes a plurality of metal magnetic particles having a particle size equal to or greater than one third of a distance between the coil conductors adjacent to each other in the predetermined direction and equal to or less than a half of the distance. Between the coil conductors adjacent to each other in the predetermined direction, the metal magnetic particles having the particle size are distributed along the predetermined direction.

    ELECTROSTATIC PROTECTION COMPONENT
    23.
    发明申请
    ELECTROSTATIC PROTECTION COMPONENT 审中-公开
    静电保护组件

    公开(公告)号：US20140204499A1

    公开(公告)日：2014-07-24

    申请号：US14223385

    申请日：2014-03-24

    Applicant: TDK Corporation

    Inventor： Hidenobu UMEDA ,  Makoto YOSHINO ,  Takahiro SATO ,  Takuo HATTORI ,  Shinichi SATO ,  Takeshi SHIBAYAMA

    IPC: H05F3/04

    CPC classification number: H05F3/04 ,  H01G4/40 ,  H01T2/00 ,  H01T4/12 ,  H05K9/0067 ,  H05K9/0079

    Abstract: An electrostatic protection component includes: a body in which a plurality of ceramic substrates is laminated; and a pair of discharge electrodes which are formed within the body and which are spaced to face each other. The discharge electrodes include main body portions extending along a longitudinal direction, and the main body portions include tips in the longitudinal direction and side edges extending along the longitudinal direction. The pair of discharge electrodes are arranged such that both the main body portions are adjacent to each other in a short direction. The discharge electrodes face each other in the short direction between the side edges, and discharge occurs only between the side edges, between the discharge electrodes.

    Abstract translation: 静电保护部件包括：层叠有多个陶瓷基板的主体; 以及一对放电电极，其形成在主体内并且彼此间隔开。 放电电极包括沿着纵向方向延伸的主体部分，并且主体部分包括沿纵向方向的尖端和沿着纵向方向延伸的侧边缘。 一对放电电极被布置成使得两个主体部分在短方向上彼此相邻。 放电电极在侧边缘之间在短的方向上彼此面对，并且放电仅在放电电极之间的侧边缘之间发生。

    COIL DEVICE
    25.
    发明公开
    COIL DEVICE 审中-公开

    公开(公告)号：US20230253143A1

    公开(公告)日：2023-08-10

    申请号：US18164873

    申请日：2023-02-06

    Applicant: TDK CORPORATION

    Inventor： Kiyofumi FUJIWARA ,  Michinori SUTO ,  Shinichi SATO

    IPC: H01F27/29 ,  H01F27/24

    CPC classification number: H01F27/292 ,  H01F27/24

    Abstract: A coil device 10 including a core having a core center part 23 for disposing roughly perpendicularly to a mounting surface and a flange 22 formed to one end in an axial direction of the core center part 23;
    a coil 30 disposed around the core center part 23; and
    an electrode 40 connected to a lead part 30a of the coil 30 and formed at least partially to a circumference surface of the flange 22; wherein
    the electrode 40 on the circumference surface of the flange 22 has a recessed part 420 which is recessed from an edge of the electrode 40 towards an outer end surface 221 of the flange 22.

    MULTILAYER COIL COMPONENT
    27.
    发明申请
    MULTILAYER COIL COMPONENT 有权

    公开(公告)号：US20220102039A1

    公开(公告)日：2022-03-31

    申请号：US17486640

    申请日：2021-09-27

    Applicant: TDK CORPORATION

    Inventor： Yusuke NAGAI ,  Takashi SUZUKI ,  Kazuhiro EBINA ,  Kouichi KAKUDA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Shinichi SATO ,  Seiichi NAKAGAWA ,  Mitsuharu KOIKE ,  Kazuhiro MIURA

    IPC: H01F1/28 ,  H01F27/28

    Abstract: A multilayer coil component includes an element body containing a plurality of metal magnetic particles and a resin existing between the plurality of metal magnetic particles and a coil configured to include a plurality of electrically interconnected coil conductors. At least one of the plurality of coil conductors has a spiral shape and has conductor portions adjacent to each other when viewed from a direction along a coil axis of the coil. The plurality of metal magnetic particles contained in the element body include a plurality of metal magnetic particles having a particle diameter of ⅓ or more and ½ or less of a distance between the conductor portions adjacent to each other in the coil conductor. The metal magnetic particles having the particle diameter are arranged along a facing direction of the conductor portions between the conductor portions adjacent to each other in the coil conductor.

    LAMINATION TYPE LC FILTER ARRAY
    29.
    发明申请
    LAMINATION TYPE LC FILTER ARRAY 审中-公开

    公开(公告)号：US20190280667A1

    公开(公告)日：2019-09-12

    申请号：US16334991

    申请日：2017-08-21

    Applicant: TDK CORPORATION

    Inventor： Akihiko OIDE ,  Naoki UCHIDA ,  Yoji TOZAWA ,  Makoto YOSHINO ,  Seiichi NAKAGAWA ,  Shinichi SATO ,  Hiroshi ONO ,  Takashi ENDO

    IPC: H03H7/01 ,  H03H1/00

    Abstract: A multilayer LC filter array includes an element body of a rectangular parallelepiped shape, a first filter including a first inductor and a first capacitor that are disposed in the element body, a second filter including a second inductor and a second capacitor that are disposed in the element body, a first input terminal electrode and a first output terminal electrode that are connected to the first inductor, a second input terminal electrode and a second output terminal electrode that are connected to the second inductor, and a ground terminal electrode that is connected to the first capacitor and the second capacitor. The element body includes first and second principal surfaces opposing each other. The ground terminal electrode is disposed at a center of the first principal surface. The first input terminal electrode, the first output terminal electrode, the second input terminal electrode, and the second output terminal electrode are disposed at respective different corner portions of the element body when viewed from a direction orthogonal to the first principal surface.

    MULTILAYER COIL COMPONENT
    30.
    发明申请
    MULTILAYER COIL COMPONENT 审中-公开

    公开(公告)号：US20190096561A1

    公开(公告)日：2019-03-28

    申请号：US16136944

    申请日：2018-09-20

    Applicant: TDK CORPORATION

    Inventor： Yusuke NAGAI ,  Takashi SUZUKI ,  Hidekazu SATO ,  Takashi ENDO ,  Kouichi KAKUDA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Yuya ISHIMA ,  Shinichi SATO ,  Masaki TAKAHASHI

    IPC: H01F17/00 ,  H01F27/34 ,  H01F41/04 ,  H01F17/04

    Abstract: In a stepwise structure formed in a multilayer coil component, a difference occurs in a shrinkage amount between a maximum film thickness portion in which the number of layers is large and a minimum film thickness portion in which the number of layers is small due to portions different in the number of layers of coil parts (that is, upper coil part, lower coil part, and connecting part) adjacent to each other like the maximum film thickness portion and the minimum film thickness portion, readily causing a crack by an inner stress due to the difference in the shrinkage amount. In a multilayer coil component according to the present disclosure, a stress relaxation part overlapping with a maximum film thickness portion whose shrinkage amount is large is provided to relax inner stress in a stepwise structure, resulting in prevention of a crack.

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