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    COIL COMPONENT
    31.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20200013545A1

    公开(公告)日：2020-01-09

    申请号：US16483376

    申请日：2018-01-15

    Applicant: TDK CORPORATION

    Inventor： Hideomi TAKAHASHI ,  Toshifumi KOMACHI ,  Toshio TOMONARI

    IPC: H01F27/34 ,  H01F27/245 ,  H01F27/28 ,  H01F27/29

    Abstract: An object of the present invention is to provide a coil component in which leakage of magnetic flux from a magnetic gap is reduced. A coil component includes: a drum-shaped core 20 having a winding core part 30 with a gap G formed therein and first and second flange parts 31 and 32; a plate-like core 40 fixed to the first and second flange parts 31 and 32; and wires W1 to W3 wound around the winding core part 30 and each having one end connected to a terminal electrode provided on the first flange part 31 and the other end connected to a terminal electrode provided on the second flange part 32. According to the present invention, the gap G formed in the winding core part 30 functions as a magnetic gap, and magnetic flux leaking from the magnetic gap is shielded by the plate-like core 40. Thus, even when the magnetic gap is provided to reduce a tolerance due to characteristic variation of a magnetic material, it is possible to solve the problem that other electronic components are affected by the leakage magnetic flux.

    COIL COMPONENT
    32.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20190148053A1

    公开(公告)日：2019-05-16

    申请号：US16185448

    申请日：2018-11-09

    Applicant: TDK CORPORATION

    Inventor： Shigeru KANEKO ,  Toshio TOMONARI ,  Junpei HAYAMA ,  Tomohiro MORIKI ,  Noritaka CHIYO

    IPC: H01F27/28 ,  H01F27/29 ,  H01F27/00

    Abstract: Disclosed herein is a coil component that includes a first coil part spirally wound in a plurality of turns, the first coil part including a first turn positioned at an innermost periphery and a second turn positioned on an outer peripheral side relative to the first turn; and a second coil part spirally wound in a plurality of turns, the second coil part including a third turn positioned at an innermost periphery and a fourth turn positioned on an outer peripheral side relative to the third turn. The first turn and the fourth turn are connected to each other, and the second turn and the third turn are connected to each other.

    COIL COMPONENT
    33.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20190131056A1

    公开(公告)日：2019-05-02

    申请号：US16170349

    申请日：2018-10-25

    Applicant: TDK Corporation

    Inventor： Syun ASHIZAWA ,  Masato OTSUKA ,  Hanako YOSHINO ,  Toshio TOMONARI ,  Kohei WADA

    IPC: H01F27/28

    Abstract: Disclosed herein is a coil component that includes an insulating substrate, a first coil part formed on the first surface of the insulating substrate, and a second coil part formed on the second surface of the insulating substrate. At least an innermost turn of the first coil part is radially separated by spiral-shaped slits into three or more conductor parts. At least an innermost turn of the second coil part is radially separated by spiral-shaped slits into three or more conductor parts. Inner peripheral ends of respective innermost to outermost conductor parts of the three or more conductor parts of the first coil part are connected to inner peripheral ends of the respective outermost to innermost conductor parts of the three or more conductor parts of the second coil part.

    COMMON MODE FILTER
    35.
    发明公开
    COMMON MODE FILTER 审中-公开

    公开(公告)号：US20240258015A1

    公开(公告)日：2024-08-01

    申请号：US18633202

    申请日：2024-04-11

    Applicant: TDK Corporation

    Inventor： Toshio TOMONARI ,  Tsutomu KOBAYASHI ,  Kazunori ARIMITSU

    IPC: H01F27/28 ,  H01F1/047 ,  H01F17/04 ,  H01F27/24

    CPC classification number: H01F27/2823 ,  H01F1/047 ,  H01F17/045 ,  H01F27/24 ,  H01F27/28

    Abstract: Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.

    COMMON MODE FILTER
    37.
    发明申请
    COMMON MODE FILTER 审中-公开

    公开(公告)号：US20190228901A1

    公开(公告)日：2019-07-25

    申请号：US16236562

    申请日：2018-12-30

    Applicant: TDK Corporation

    Inventor： Yugo ASAI ,  Tsutomu KOBAYASHI ,  Daisuke URABE ,  Hiroshi SUZUKI ,  Emi ITO ,  Toshio TOMONARI

    IPC: H01F27/28 ,  H03H7/09 ,  H03H1/00 ,  H01F17/04 ,  H01F27/06

    Abstract: Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.

    COIL COMPONENT
    38.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20190115137A1

    公开(公告)日：2019-04-18

    申请号：US16159523

    申请日：2018-10-12

    Applicant: TDK CORPORATION

    Inventor： Shigeru KANEKO ,  Toshio TOMONARI

    IPC: H01F17/00 ,  H01F27/28 ,  H01F27/29 ,  H01F41/061 ,  H01F41/04

    Abstract: Disclosed herein is a coil component that includes a substrate having a first surface and a first spiral coil spirally wound in a plurality of turns formed on the first surface of the substrate. Each of the turns has a first circumference region in which a radial position is substantially fixed and a first shift region in which a radial position is shifted. Each of inner and outer peripheral ends of the first spiral coil is positioned at the first shift region.

    DIFFERENTIAL MODE FILTER
    39.
    发明申请
    DIFFERENTIAL MODE FILTER 审中-公开

    公开(公告)号：US20180097497A1

    公开(公告)日：2018-04-05

    申请号：US15723392

    申请日：2017-10-03

    Applicant: TDK Corporation

    Inventor： Tsutomu KOBAYASHI ,  Toshio TOMONARI ,  Emi ITO ,  Yuma KOMAYA

    IPC: H03H7/09

    CPC classification number: H03H7/09 ,  H01F17/045 ,  H01F19/08 ,  H01F27/2828 ,  H03H1/0007 ,  H03H7/425 ,  H03H7/427 ,  H03H2001/0035

    Abstract: Disclosed herein is a differential mode filter that includes first and second terminal electrodes provided on a first flange part of a core, and first and second wires wound around a winding core part of the core in an opposite direction to each other and connected respectively to the first and second terminal electrodes. The first and second wires cross each other on the winding core part to form a plurality of crossing portions that include first, second, and third crossing portions that are first, second, and third occurrences counting from the one end of the first and second wires, respectively. A first crossing angle between the first and second wires at the first crossing portion is larger than at least one of second and third crossing angles between the first and second wires at the second and third portions, respectively.

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