公开(公告)号：US20180374632A1

公开(公告)日：2018-12-27

申请号：US16012611

申请日：2018-06-19

Applicant: TDK CORPORATION

Inventor： Keisuke KAWAHARA ,  Tasuku MIKOGAMI ,  Setu TSUCHIDA ,  Toshio TOMONARI

IPC: H01F27/29 ,  H01F17/04 ,  H01F41/069 ,  H01F41/076 ,  H01F27/28

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：US20170330669A1

公开(公告)日：2017-11-16

申请号：US15590341

申请日：2017-05-09

Applicant: TDK Corporation

Inventor： Toshio TOMONARI ,  Sachiko TAKANO ,  Shigeki SATO

IPC: H01F17/00 ,  H01F27/29 ,  H01F10/26 ,  H01F5/00 ,  H01F27/28

CPC classification number: H01F17/0013 ,  H01F5/003 ,  H01F10/26 ,  H01F17/04 ,  H01F27/292 ,  H01F27/365 ,  H01F2003/106 ,  H01F2017/0053 ,  H01F2017/0066 ,  H01F2017/0073 ,  H01F2017/008 ,  H01F2027/2809

Abstract: Disclosed herein is a coil component that includes an element body made of a first magnetic material, a coil conductor embedded in the element body, and first and second magnetic films made of a second magnetic material having higher permeability than that of the first magnetic material. The element body has an upper surface crossing a coil axis of the coil conductor and first and second side surfaces extending substantially parallel to the coil axis. The first magnetic film is formed on the upper surface and first side surface of the element body, and the second magnetic film is formed on the upper surface and second side surface of the element body.

公开(公告)号：US20170271746A1

公开(公告)日：2017-09-21

申请号：US15459326

申请日：2017-03-15

Applicant: TDK Corporation

Inventor： Toshifumi KOMACHI ,  Toshio TOMONARI ,  Hirohumi ASOU

IPC: H01Q1/24 ,  H01Q7/00 ,  H04B5/00 ,  H01Q1/38

CPC classification number: H01Q1/242 ,  H01Q1/2225 ,  H01Q1/243 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q7/06 ,  H04B5/0081 ,  H04B5/02

Abstract: Disclosed herein is an antenna device that includes a planar coil pattern formed on a substrate and a composite magnetic sheet positioned on an opposite side to the substrate with respect to the planar coil pattern. The composite magnetic sheet comprises soft magnetic metal powder and binder resin. The composite magnetic sheet is supported with a predetermined distance from the planar coil pattern.

公开(公告)号：US20170025758A1

公开(公告)日：2017-01-26

申请号：US15181688

申请日：2016-06-14

Applicant: TDK Corporation

Inventor： Toshio TOMONARI ,  Toshifumi Komachi ,  Hirohumi Asou

IPC: H01Q7/06 ,  H04B5/00 ,  H01Q1/24

CPC classification number: H01Q7/00 ,  H01Q1/243

Abstract: An antenna device is provided with first and second substrates opposed to each other, one or more first wiring patterns provided on the first substrate, one or more second wiring patterns provided on the second substrate, and a plurality of connection conductors each connecting an end portion of its corresponding first wiring pattern and an end portion of its corresponding second wiring pattern. The first wiring patterns, second wiring patterns and the plurality of connection conductors constitute an antenna coil.

Abstract translation: 天线装置设置有彼此相对的第一和第二基板，设置在第一基板上的一个或多个第一布线图案，设置在第二基板上的一个或多个第二布线图案，以及多个连接导体，每个连接导体连接端部 其相应的第一布线图案和其对应的第二布线图案的端部。 第一布线图形，第二布线图案和多个连接导体构成天线线圈。

公开(公告)号：US20160226146A1

公开(公告)日：2016-08-04

申请号：US14994358

申请日：2016-01-13

Applicant: TDK Corporation

Inventor： Toshifumi KOMACHI ,  Hirohumi ASOU ,  Toshio TOMONARI

IPC: H01Q7/06 ,  H01Q1/24

CPC classification number: H01Q7/06 ,  H01Q1/2225

Abstract: Disclosed herein is an antenna device includes a first metal layer having a first slit, an antenna coil having an inner diameter area overlapping with the first slit in planar view and a coil axis perpendicular to the first metal layer, and a first magnetic layer provided on a back surface of the first metal layer, which faces the antenna coil, and provided outside of the antenna coil in planar view. An upper surface of the first magnetic layer facing the back surface of the first metal layer is positioned closer than a far end surface of the antenna coil to the back surface of the first metal layer along the coil axis, as viewed from the back surface of the first metal layer, or is positioned in the same plane as the far end of the antenna coil.

Abstract translation: 本发明公开了一种天线装置，包括具有第一狭缝的第一金属层，在平面视图中具有与第一狭缝重叠的内径区域的天线线圈和垂直于第一金属层的线圈轴，以及设置在第一金属层上的第一磁性层 面对天线线圈的第一金属层的后表面，并且在平面视图中设置在天线线圈的外部。 第一磁性层的面向第一金属层的背面的上表面比线圈轴的距离比天线线圈的远端面靠近第一金属层的背面， 第一金属层，或者位于与天线线圈的远端相同的平面中。

公开(公告)号：US20230223180A1

公开(公告)日：2023-07-13

申请号：US18121819

申请日：2023-03-15

Applicant: TDK CORPORATION

Inventor： Toshio TOMONARI ,  Tsutomu KOBAYASHI ,  Kazunori ARIMITSU ,  Yuma KOMAYA

IPC: H01F17/04 ,  H01F27/28

CPC classification number: H01F17/045 ,  H01F27/2823 ,  H01F2017/0093

Abstract: A device includes a core having a first end and a second end, and first and second wires wound around the core, where the core has first, second, and third sections, the second section being arranged between the first and third sections. Each of the first and second wires includes an ith turn located on the first section, a jth turn located on the second section, and a kth turn located on the third section. The ith turn of the first wire is closer to the first end than the ith turn of the second wire, the jth turn of the first wire is closer to the second end than the jth turn of the second wire, and the kth turn of the first wire is closer to the first end than the kth turn of the second wire.

公开(公告)号：US20230036443A1

公开(公告)日：2023-02-02

申请号：US17876102

申请日：2022-07-28

Applicant: TDK Corporation

Inventor： Yosuke MIYAO ,  Toshio TOMONARI ,  Ryota UCHIYAMA

IPC: H05K9/00 ,  H01F1/18

Abstract: Disclosed herein is a noise suppression sheet that includes a magnetic sheet and a first metal layer provided on one surface of the magnetic sheet. The first metal layer has a plurality of annular slits. The first metal layer is divided into a plurality of first areas surrounded respectively by the plurality of slits and a second area surrounding an entire periphery of each of the plurality of slits.

公开(公告)号：US20210067010A1

公开(公告)日：2021-03-04

申请号：US17005909

申请日：2020-08-28

Applicant: TDK Corporation

Inventor： Toshio TOMONARI ,  Noritaka CHIYO ,  Koji MITAKE ,  Toshihiro KUROSHIMA

IPC: H02K11/25 ,  H02K21/14 ,  G01K7/16 ,  G01K7/36

Abstract: A magnet temperature information output device is disposed on a rotating electrical machine including a stator and a rotor with a permanent magnet, and is arranged to output temperature information regarding a temperature of the permanent magnet. The magnet temperature information output device includes an element arranged to detect a magnetic flux and output an electrical signal responding to the detected magnetic flux as the temperature information. The element is disposed on the stator.

公开(公告)号：US20200274392A1

公开(公告)日：2020-08-27

申请号：US16802372

申请日：2020-02-26

Applicant: TDK Corporation

Inventor： Noritaka CHIYO ,  Toshio TOMONARI ,  Shigeru KANEKO ,  Shigenori HIRATA ,  Akihito WATANABE ,  Hirohumi ASOU ,  Junpei HAYAMA ,  Shigeki OHTSUKA ,  Takahiro OHISHI ,  Takaaki IMAI ,  Tomohiro MORIKI ,  Takakazu MARUYAMA

IPC: H02J50/10 ,  H04B5/00 ,  H01F5/04 ,  H01F27/28

Abstract: Disclosed herein is a coil component that includes a first coil pattern wound in a planar spiral shape . At least one turn constituting the first coil pattern is divided into a plurality of lines by a spiral slit, and a space width between the plurality of lines differs depending on a planar position.

公开(公告)号：US20200090857A1

公开(公告)日：2020-03-19

申请号：US16690691

申请日：2019-11-21

Applicant: TDK Corporation

Inventor： Toshio TOMONARI ,  Tsutomu KOBAYASHI ,  Kazunori ARIMITSU

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

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.