公开(公告)号：US09558882B2

公开(公告)日：2017-01-31

申请号：US14548420

申请日：2014-11-20

Applicant: TDK CORPORATION

Inventor： Noritaka Chiyo ,  Takeshi Kamono ,  Narutoshi Fukuzawa ,  Toshinori Matsuura ,  Tetsuya Nishiyama

IPC: H01F5/00 ,  H01F27/34 ,  H01F27/28 ,  H01F38/14 ,  H02J5/00 ,  H01F27/24 ,  H01F27/42 ,  H01F38/00 ,  H01F37/00 ,  B60L11/00 ,  H01F27/38 ,  H02J7/02 ,  H02J7/00 ,  H02J17/00

CPC classification number: H01F27/346 ,  B60L11/00 ,  B60L11/182 ,  B60L11/1824 ,  B60L2230/10 ,  B60L2270/147 ,  H01F5/00 ,  H01F27/24 ,  H01F27/28 ,  H01F27/38 ,  H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0042 ,  H02J7/025 ,  H02J17/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/14

Abstract: A power feeding coil unit includes a power feeding coil, and an auxiliary coil. The auxiliary coil is arranged not to interlink with a magnetic flux that interlinks with a power receiving coil that is arranged to face the power feeding coil during power feeding. An axial direction of the auxiliary coil is nonparallel to an opposing direction of the power feeding coil and the power receiving coil. A direction of circulation of a magnetic flux generated by the auxiliary coil is opposite to a direction of circulation of a magnetic flux generated by the power feeding coil.

Abstract translation: 馈电线圈单元包括馈电线圈和辅助线圈。 辅助线圈被布置为不与在供电期间被布置为面对馈电线圈的受电线圈相互连接的磁通量互连。 辅助线圈的轴向方向与供电线圈和受电线圈的相反方向不平行。 由辅助线圈产生的磁通的循环方向与由馈电线圈产生的磁通的循环方向相反。

公开(公告)号：US12300415B2

公开(公告)日：2025-05-13

申请号：US17018455

申请日：2020-09-11

Applicant: TDK CORPORATION

Inventor： Noritaka Chiyo ,  Takakazu Maruyama ,  Takahiro Ohishi ,  Tomohiro Moriki ,  Shigeru Kaneko

IPC: H01F27/28 ,  H01F27/34

Abstract: Disclosed herein is a coil component that includes a substrate having a first surface, and a first coil pattern formed on the first surface of the substrate. The first coil pattern includes a plurality of turns having an innermost turn and an outermost turn. Each of the innermost and outermost turns is radially divided into a plurality of lines. The innermost turn is greater in a number of lines than the outermost turn.

公开(公告)号：US12211636B2

公开(公告)日：2025-01-28

申请号：US17188218

申请日：2021-03-01

Applicant: TDK Corporation

Inventor： Noritaka Chiyo ,  Takuya Yoshida

IPC: H01F27/28 ,  H01F38/14

Abstract: Disclosed herein is a coil component that includes a coil pattern provided on the substrate. The outer and inner shapes of the coil pattern are both larger in width in a first direction than a second direction. The outer shape of the coil pattern has a pair of first outer shape sections and a second outer shape section positioned between the pair of first outer shape sections in the first direction and having a width in the second direction larger than that of the first outer shape sections. The inner shape of the coil pattern has a pair of first inner shape sections and a second inner shape section positioned between the pair of first inner shape sections in the first direction and having a width in the second direction larger than that of the first inner shape sections.

公开(公告)号：US11894182B2

公开(公告)日：2024-02-06

申请号：US17748556

申请日：2022-05-19

Applicant: TDK Corporation

Inventor： Shoma Kajikiya ,  Noritaka Chiyo

IPC: H01F5/04 ,  H01F27/28 ,  H01F38/14 ,  H02J50/10 ,  H02J50/80

CPC classification number: H01F38/14 ,  H01F5/04 ,  H01F27/28 ,  H02J50/10 ,  H02J50/80

Abstract: Disclosed herein is a coil component that includes a first coil, and a second coil disposed so as to surround the first coil. The first coil includes a first section extending in a first direction, a second section extending in a second direction orthogonal to the first direction, and a third section positioned between the first and second sections. Gaps between the first, second, and third sections of the first coil and the second coil as viewed in a coil axis direction have a first width, a second width, and a third width, respectively. The second width is larger than the first width and smaller than the third width.

公开(公告)号：US11715976B2

公开(公告)日：2023-08-01

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 ,  H01F27/28 ,  H01F5/04

CPC classification number: H02J50/10 ,  H01F5/04 ,  H01F27/2828 ,  H04B5/0037 ,  H04B5/0081

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：US11443893B2

公开(公告)日：2022-09-13

申请号：US16361804

申请日：2019-03-22

Applicant: TDK Corporation

Inventor： Noritaka Chiyo

IPC: H02J50/70 ,  H01F41/04 ,  H02J50/12 ,  H01F27/245 ,  H01F27/28 ,  H01F27/34 ,  H01F38/14

Abstract: Disclosed herein is a coil component that includes a coil pattern spirally wound in a plurality of turns. The coil pattern has an innermost turn positioned at an innermost periphery, an outermost turn positioned at an outermost periphery, a middle turn whose turn number counted from the innermost or outermost turn is intermediate among all the turns, and a center position of a line length. The coil pattern is designed such that a pattern width at the center position is larger than pattern widths of the innermost and outermost turns, and that a total or average value of pattern widths of turns positioned between the outermost turn and the middle turn is larger than a total or average value of pattern widths of turns positioned between the innermost turn and the middle turn.

公开(公告)号：US11367942B2

公开(公告)日：2022-06-21

申请号：US16862794

申请日：2020-04-30

Applicant: TDK Corporation

Inventor： Masaki Matsushima ,  Noritaka Chiyo ,  Tomohiro Moriki

IPC: H01Q1/22 ,  H01Q7/00 ,  H01Q1/50 ,  H01F27/245 ,  H01F27/28 ,  H01L23/66 ,  H03H7/38

Abstract: Disclosed herein is an antenna device that includes a substrate; a conductor pattern formed on the substrate and including a spiral or loop-shaped antenna coil, a spiral or loop-shaped coupling coil being connected to the antenna coil and having a diameter smaller than that of the antenna coil, and a spiral-shaped booster coil at least partially overlapping the antenna coil through the substrate without being connected thereto; and a resonance capacitor connected to the booster coil. The number of turns of the booster coil is larger than that of the antenna coil.

公开(公告)号：US09984817B2

公开(公告)日：2018-05-29

申请号：US14668297

申请日：2015-03-25

Applicant: TDK CORPORATION

Inventor： Noritaka Chiyo ,  Yasuhiro Terasaki

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H01F38/14 ,  H02J5/00 ,  B60L11/18 ,  H01F3/10 ,  H01F27/38 ,  H02J50/10 ,  H02J50/40 ,  H02J50/90

CPC classification number: H01F38/14 ,  B60L11/182 ,  B60L11/1824 ,  B60L11/1829 ,  B60L11/1833 ,  H01F3/10 ,  H01F27/38 ,  H02J5/005 ,  H02J50/10 ,  H02J50/40 ,  H02J50/90 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/14

Abstract: A coil for wireless power transmission in which a plurality of magnetic connection members are disposed in a manner which magnetically connects coils among a plurality of coils, which are adjacent with one or more coils therebetween, and does not magnetically connect coils among the plurality of coils, which are next to each other, and in adjacent coils among the plurality of coils, which are magnetically connected, directions of magnetic fields that are generated when a current flows through the coils are mutually inverse directions.

公开(公告)号：US09716390B2

公开(公告)日：2017-07-25

申请号：US14548950

申请日：2014-11-20

Applicant: TDK CORPORATION

Inventor： Noritaka Chiyo ,  Tetsuya Nishiyama

IPC: H01F27/24 ,  H02J5/00 ,  H01F27/38 ,  H01F38/14 ,  H01F3/10

CPC classification number: H02J5/005 ,  H01F3/10 ,  H01F27/24 ,  H01F27/38 ,  H01F38/14 ,  H02J7/025 ,  H02J50/10 ,  H02J50/70

Abstract: A power feeding coil unit includes a power feeding coil, and first and second auxiliary coils arranged so that a wire of the first auxiliary coil and a wire of the second auxiliary coil do not overlap a wire of the a power feeding coil when viewed from a direction perpendicular to an axial direction of the power feeding coil. A direction of circulation of a magnetic flux generated by the first auxiliary coil and a magnetic flux generated by the second auxiliary coil are opposite to a direction of circulation of a magnetic flux generated by the power feeding coil. An axes of the first and second auxiliary coils are substantially perpendicular to a power feeding direction of the power feeding coil, and are not aligned with the axis of the power feeding coil.

公开(公告)号：US12164990B2

公开(公告)日：2024-12-10

申请号：US17734368

申请日：2022-05-02

Applicant: TDK Corporation

Inventor： Shoma Kajikiya ,  Noritaka Chiyo

IPC: G06K19/077 ,  H01Q7/00

Abstract: Disclosed herein is an antenna device that includes a first coil pattern having at least first, second, and third turns. As viewed in a coil axis direction, each of the first, second, and third turns has an opening with a width larger in a first direction than in a second direction orthogonal to the first direction. The width of the opening of the second turn in the second direction is larger than a width of the opening of the first turn in the second direction. The width of the opening of the third turn in the second direction is larger than the width of the opening of the second turn in the second direction and smaller than a width of the opening of the first turn in the first direction.