公开(公告)号：US09839129B2

公开(公告)日：2017-12-05

申请号：US15395045

申请日：2016-12-30

Applicant: TDK Corporation

Inventor： Nobuo Takagi ,  Kouyu Ohi ,  Tasuku Mikogami ,  Setu Tsuchida

IPC: H01F27/28 ,  H05K1/18 ,  H05K3/34 ,  H01F27/24 ,  H01F27/29

CPC classification number: H05K1/181 ,  H01F3/10 ,  H01F19/04 ,  H01F27/24 ,  H01F27/2823 ,  H01F27/2828 ,  H01F27/292 ,  H05K3/3442 ,  H05K2201/1003 ,  Y02P70/611 ,  Y02P70/613

Abstract: Disclosed herein is a coil component that includes a drum-shaped core having a first flange part provided at one end of a winding core part, first to fourth terminal electrodes formed on the first flange part so as to be arranged in this order in a second direction, and first to fourth wires wound around the winding core part. One ends of the first to fourth wires are connected to different ones of the first to fourth terminal electrodes. The first and second terminal electrodes are not symmetrical with the third and fourth terminal electrodes so that the third and fourth terminal electrodes are offset outward compared with the first and second terminal electrodes.

公开(公告)号：US09543071B2

公开(公告)日：2017-01-10

申请号：US14624442

申请日：2015-02-17

Applicant: TDK CORPORATION

Inventor： Nobuo Takagi ,  Setu Tsuchida ,  Koji Shimura

IPC: H01F27/29 ,  H01F27/30 ,  H01F27/28 ,  H01F17/04

CPC classification number: H01F27/292 ,  H01F17/045 ,  H01F27/2828 ,  H01F27/29 ,  H01F27/30

Abstract: Disclosed herein is a coil component that includes a base, a metal wire that is wound around the base and contains copper, and a terminal electrode that is provided on the base and contains nickel and tin. The terminal electrode includes a wire connection area to which an end portion of the metal wire is connected and which contains a CuNi alloy or a CuNiSn alloy, and a mounting area which is different from the wire connection area. The wire connection area includes a portion that contains a small amount of tin than the mounting area.

Abstract translation: 本文公开了一种线圈部件，其包括基部，围绕基部缠绕并包含铜的金属线，以及设置在基座上并且包含镍和锡的端子电极。 端子电极包括金属线的端部连接并且包含CuNi合金或CuNiSn合金的线连接区域和与导线连接区域不同的安装区域。 电线连接区域包括一个比安装区域少的锡的部分。

公开(公告)号：US09349526B2

公开(公告)日：2016-05-24

申请号：US14224581

申请日：2014-03-25

Applicant: TDK CORPORATION

Inventor： Nobuo Takagi ,  Setu Tsuchida ,  Tasuku Mikogami

IPC: H01F27/29 ,  H01F27/02 ,  H01F27/28 ,  H01F17/04 ,  H01F3/10

CPC classification number: H01F27/292 ,  H01F3/10 ,  H01F27/2828

Abstract: A pulse transformer is provided with a drum core 2 including a winding core 3 and first and second flanges 4A and 4B, and wires S1 to S4 wound around a winding core 3 of the drum core 2. Terminal electrodes 6a and 6b and a center tap 6c are provided on the flange 4A, and terminal electrodes 6d and 6e and a center tap 6f are provided on the flange 4B. Each end of the wires S1 to S4 is connected to a corresponding one of the terminal electrodes P1 and N1, the center tap CT2, the terminal electrodes P2 and N2, and the center tap CT1. A front end of the terminal electrode 6b is setback toward an outer side surface of the flange 4A, and a front end of the terminal electrode 6e is setback toward an outer side surface of the first flange 4B.

Abstract translation: 脉冲变压器设置有包括卷绕芯3和第一和第二凸缘4A和4B的鼓芯2，以及卷绕在鼓芯2的卷绕芯3上的导线S1至S4。端子电极6a和6b以及中心抽头 6c设置在凸缘4A上，端子电极6d和6e以及中心抽头6f设置在凸缘4B上。 电线S1至S4的每一端连接到端子电极P1和N1，中心抽头CT2，端子电极P2和N2以及中心抽头CT1中的对应的一个。 端子电极6b的前端朝向凸缘4A的外侧面退回，端子电极6e的前端朝向第一凸缘4B的外侧面退回。

公开(公告)号：US11456112B2

公开(公告)日：2022-09-27

申请号：US16378960

申请日：2019-04-09

Applicant: TDK CORPORATION

Inventor： Tasuku Mikogami ,  Shuhei Someya ,  Syun Ashizawa ,  Setu Tsuchida

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

Abstract: Disclosed herein is a coil component that includes a core including a winding core part extending in the x-direction and a flange part, a terminal electrode provided on the flange part, and a wire wound around the winding core part and connected to the terminal electrode. The terminal electrode does not overlap the winding core part in the y-direction. The wire includes a wound part wound around the winding core part and a drawn part drawn from the wound part, running across the winding core part in the z-direction and connected to the terminal electrode. The core has a positioning part that positions the drawn part of the wire in the y-direction.

公开(公告)号：USD942946S1

公开(公告)日：2022-02-08

申请号：US29663033

申请日：2018-09-11

Applicant: TDK CORPORATION

Designer： Nobuo Takagi ,  Toshio Tomonari ,  Setu Tsuchida ,  Syun Ashizawa

公开(公告)号：US11164692B2

公开(公告)日：2021-11-02

申请号：US16027865

申请日：2018-07-05

Applicant: TDK CORPORATION

Inventor： Yoshihiro Kawasaki ,  Munehito Nishimura ,  Setu Tsuchida

IPC: H01F17/04 ,  H01F27/24 ,  H01F41/064 ,  H01F27/29 ,  H01F27/28 ,  H01F41/10

Abstract: A coil device includes: a core including a winding core part and a flange part at an axial end part of the winding core part, a coil part including a first wire and a second wire wound around the winding core part, a first terminal electrode, formed on a flange part mounting surface and a lead-out part of the first wire is connected, and a second terminal electrode, formed on the mounting surface of the flange part spaced apart from the first terminal electrode and a lead-out part of the second wire is connected, in which the flange part includes a concave part, recessed from the upper surface of the flange part and from an outer end surface of the flange part in order to have bottoms. The coil device is easy to connect a wire and has excellent bonding strength even when the connecting part becomes the mounting surface.

公开(公告)号：US11133130B2

公开(公告)日：2021-09-28

申请号：US16012611

申请日：2018-06-19

Applicant: TDK CORPORATION

Inventor： Keisuke Kawahara ,  Tasuku Mikogami ,  Setu Tsuchida ,  Toshio Tomonari

IPC: H01F17/04 ,  H01F27/29 ,  H01F41/076 ,  H01F41/069 ,  H01F27/38 ,  H01F27/24 ,  H01F27/28 ,  H01F19/08

Abstract: Disclosed herein is a pulse transformer that includes: a drum core including a winding core part and first and second flange parts provided at both ends of the winding core part in an axial direction; a plurality of wires wound around the winding core part; and a plate-like core fixed to the drum core so as to face a first surface of the first flange part that is parallel to the axial direction and a second surface of the second flange part that is parallel to the axial direction. A value of S1/S2 is 0.19 or more and 0.47 or less, where an area of the cross section of the winding core part that is perpendicular to the axial direction is S1 and a facing area between the plate-like core and the first or second surface is S2.

公开(公告)号：US10553348B2

公开(公告)日：2020-02-04

申请号：US16263056

申请日：2019-01-31

Applicant: TDK CORPORATION

Inventor： Nobuo Takagi ,  Setu Tsuchida ,  Tasuku Mikogami

IPC: H01F27/29 ,  H01F3/10 ,  H01F27/28

Abstract: A pulse transformer includes a drum core having a winding core, a first flange provided at one end of the winding core in a first direction, and a second flange provided at the other end of the winding core in the first direction. First, second, third, and fourth terminal electrodes are provided in the first flange, and fifth, sixth, seventh, and eighth terminal electrodes are provided in the second flange. First, second, third, and fourth wires each have one end connected to a different one of the first to fourth terminal electrodes and the other end connected to a different one of the fifth to eighth terminal electrodes. A length of the drum core in the first direction and the second direction, perpendicular to the first direction, are substantially equal to one another, such that a planar shape of a mounting region of the pulse transformer is substantially square.

公开(公告)号：US10366823B2

公开(公告)日：2019-07-30

申请号：US15401504

申请日：2017-01-09

Applicant: TDK Corporation

Inventor： Nobuo Takagi ,  Kouyu Ohi ,  Tasuku Mikogami ,  Setu Tsuchida

IPC: H01F17/04 ,  H01F27/28 ,  H01F27/29 ,  H01F27/30 ,  H01F3/10

Abstract: Disclosed herein is a coil component that includes a drum-shaped core having a winding part, first and second terminal electrodes provided on the first flange part of the drum-shaped core, third and fourth terminal electrodes provided on the second flange part of the drum-shaped core, a first coil wound around the winding core part connected between the first and third terminal electrodes, and a second coil wound around the winding core part connected between the second and fourth terminal electrodes. The first and second coils cross each other at the first drawing part positioned between the winding part and the first flange part. The first coil is constituted by two or more wires.

公开(公告)号：US10186376B2

公开(公告)日：2019-01-22

申请号：US15201742

申请日：2016-07-05

Applicant: TDK Corporation

Inventor： Tasuku Mikogami ,  Nobuo Takagi ,  Kouyu Ohi ,  Syun Ashizawa ,  Setu Tsuchida

IPC: H01F41/069 ,  H01F27/28 ,  H01F17/00 ,  H01F27/32 ,  H01F41/12 ,  H01F27/29

Abstract: Disclosed herein is a coil component that includes: a drum core including a first flange portion, a second flange portion and a winding core portion positioned between the first and second flange portions; a plurality of coated conductive wires forming a first winding layer wound around the winding core portion and a second winding layer wound around the winding core portion with an intervention of the first winding layer; and a resin coating layer covering the coated conductive wires. A maximum space between the coated conductive wires in the first winding layer is narrower than a diameter of the coated conductive wires.