公开(公告)号：US20210110962A1

公开(公告)日：2021-04-15

申请号：US17018283

申请日：2020-09-11

Applicant: TDK CORPORATION

Inventor： Noritaka CHIYO ,  Masaki MATSUSHIMA ,  Tomohiro MORIKI ,  Takuya YOSHIDA ,  Toshio TOMONARI

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

Abstract: Disclosed herein is a coil component that includes a substrate having a first surface, and first and second coil patterns coaxially formed on the first surface of the substrate and electrically isolated from each other. The first coil pattern has a plurality of turns including a first turn and a second turn. A predetermined turn of the second coil pattern is disposed between the first and second turns of the first coil pattern.

公开(公告)号：US20220285841A1

公开(公告)日：2022-09-08

申请号：US17676405

申请日：2022-02-21

Applicant: TDK CORPORATION

Inventor： Shoma KAJIKIYA ,  Masaki MATSUSHIMA

IPC: H01Q7/00 ,  H01Q5/10

Abstract: Disclosed herein is an antenna device that includes a substrate; and a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate. An opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern. The first coil pattern is disposed so as to overlap the opening region of the second coil pattern. One of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit.

公开(公告)号：US20200380332A1

公开(公告)日：2020-12-03

申请号：US16862818

申请日：2020-04-30

Applicant: TDK Corporation

Inventor： Masaki MATSUSHIMA ,  Noritaka CHIYO ,  Tomohiro MORIKI

IPC: G06K19/077 ,  H01Q7/00 ,  H01Q1/22

Abstract: Disclosed herein is an antenna device that includes a substrate, a conductor pattern formed on the substrate, and a magnetic sheet formed on the substrate. The conductor pattern includes a spiral or loop-shaped antenna coil and a spiral or loop-shaped coupling coil connected to the antenna coil and having a diameter smaller than that of the antenna coil. The antenna coil overlaps the magnetic sheet. The magnetic sheet has a first opening at a position overlapping the coupling coil such that an inner diameter area of the coupling coil completely overlaps the first opening in a plan view.

公开(公告)号：US20220059938A1

公开(公告)日：2022-02-24

申请号：US17403575

申请日：2021-08-16

Applicant: TDK Corporation

Inventor： Masaki MATSUSHIMA ,  Makoto ORIKASA ,  Ryota UCHIYAMA ,  Junpei HAYAMA

IPC: H01Q7/00 ,  H01Q1/38

Abstract: Disclosed herein is a coil component that includes a substrate, a coil pattern formed on one surface of the substrate, and a magnetic layer comprising a composite material obtained by dispersing magnetic particles in resin and formed on the one surface of the substrate so as to cover the coil pattern. The coil pattern has a flat shape in which a thickness thereof is smaller than a radial width. Each of the magnetic particles has a flat shape in which a thickness thereof in a direction perpendicular to the one surface of the substrate is smaller than a diameter in a direction parallel to the one surface of the substrate. Some of the magnetic particles exist within a height range of the coil pattern with respect to the one surface of the substrate.

公开(公告)号：US20200381802A1

公开(公告)日：2020-12-03

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 ,  H03H7/38 ,  H01F27/245 ,  H01F27/28 ,  H01L23/66

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：US20220230803A1

公开(公告)日：2022-07-21

申请号：US17573983

申请日：2022-01-12

Applicant: TDK Corporation

Inventor： Masaki MATSUSHIMA ,  Noritaka CHIYO

IPC: H01F38/14 ,  H01F27/28 ,  H01F27/24 ,  H02J50/10

Abstract: Disclosed herein is a coil component that includes a first coil pattern, a second coil pattern connected to the first coil pattern, and a magnetic member covering the first and second coil patterns in an axial direction of the first and second coil patterns. The first and second coil patterns are arranged side by side in a first direction perpendicular to the axial direction. The first coil pattern has a first protrusion protruding in a second direction perpendicular to the axial direction and the first direction from a first outer peripheral end of the magnetic member in the second direction.