公开(公告)号：US11328872B2

公开(公告)日：2022-05-10

申请号：US16724760

申请日：2019-12-23

Applicant: TDK CORPORATION

Inventor： Yoshihiro Shinkai ,  Yuichiro Okuyama ,  Tomoya Hanai ,  Yusuke Ariake ,  Isao Kanada ,  Takashi Ohtsuka

IPC: H01G4/40 ,  H01F27/24 ,  H01F27/28 ,  H01F27/40

Abstract: An LC composite component includes a non-magnetic substrate, a magnetic layer with magnetism, capacitors, inductors, and core parts with magnetism. The non-magnetic substrate includes a first surface and a second surface on a side opposite to the first surface. The magnetic layer is disposed to face the first surface of the non-magnetic substrate. The inductors and the capacitors are disposed between the first surface of the non-magnetic substrate and the magnetic layer. The core parts are disposed between the first surface of the non-magnetic substrate and the magnetic layer and connected to the magnetic layer. The thickness of the core parts is 1.0 or more times the thickness of the magnetic layer in a direction perpendicular to the first surface of the non-magnetic substrate, and each of the magnetic layer and the core parts contains magnetic metal particles and resin.

公开(公告)号：US10854376B2

公开(公告)日：2020-12-01

申请号：US16013657

申请日：2018-06-20

Applicant: TDK CORPORATION

Inventor： Akihiro Harada ,  Yoshihiro Shinkai ,  Kyohei Takahashi ,  Tomoya Hanai

IPC: H01F27/40 ,  H01F1/33 ,  H01G4/40 ,  H03H7/01 ,  H03H1/00 ,  H01F27/28 ,  H01F27/255 ,  H01F17/00 ,  H01F27/29 ,  H01G4/30 ,  H01G4/248

Abstract: A coil component includes a coil and a composite magnetic material containing magnetic particles. The magnetic particles have an average minor-axis length of more than 5.0 nm and 50 nm or less and an average aspect ratio of 2.0 or more and 10.0 or less. The magnetic particles are orientated substantially perpendicularly to a central axis of the coil and are orientated randomly within a perpendicular plane to the central axis of the coil. The composite magnetic material has a saturation magnetization σs of 80.0 emu/g or more.

公开(公告)号：US11515854B2

公开(公告)日：2022-11-29

申请号：US16725581

申请日：2019-12-23

Applicant: TDK Corporation

Inventor： Yoshihiro Shinkai ,  Yuichiro Okuyama ,  Yusuke Ariake ,  Tomoya Hanai ,  Isao Kanada ,  Takashi Ohtsuka

IPC: H03H7/01 ,  H01F17/00 ,  H01F27/29 ,  H05K1/18 ,  H03H1/00

Abstract: An LC composite component includes a magnetic substrate with magnetism, a magnetic layer with magnetism, inductors, capacitors, and core parts with magnetism. The magnetic substrate includes a first surface and a second surface on a side opposite to the first surface. The magnetic layer is disposed to face the first surface of the magnetic substrate. The inductors and the capacitors are disposed between the first surface of the magnetic substrate and the magnetic layer. The core parts are disposed between the first surface of the magnetic substrate and the magnetic layer and connected to the magnetic layer. The thickness of the core part is 1.0 or more times the thickness of the magnetic layer, the thickness of the magnetic substrate is 1.0 or more times the thickness of the magnetic layer.

公开(公告)号：US10763019B2

公开(公告)日：2020-09-01

申请号：US15868439

申请日：2018-01-11

Applicant: TDK CORPORATION

Inventor： Yoshihiro Shinkai ,  Takashi Kamiya ,  Masahito Koeda ,  Kyotaro Abe

IPC: H01F1/24 ,  H01F1/153 ,  H01F3/08 ,  H01F27/255 ,  H01F17/04 ,  H01F1/26

Abstract: A soft magnetic material comprising a soft magnetic metal powder and a resin, wherein the soft magnetic metal powder is constituted from a particle group α and group β, when IA is a peak intensity of the particle group α, IB is a peak intensity of the particle group β, and IC is a minimum intensity present between the particle group α and group β, then an intensity ratio IC/IA satisfies 0.10 or less and an intensity ratio IA/IB satisfies 1.2 or more and 3.0 or less, the particle group α having a maximum peak intensity in a size distribution of the soft magnetic metal powder, the particle group β having an peak intensity which is the second largest to the particle group α, and a peak particle size PA of the particle group α is larger than a peak particle size PB of the particle group β.

公开(公告)号：US10573442B2

公开(公告)日：2020-02-25

申请号：US15868363

申请日：2018-01-11

Applicant: TDK CORPORATION

Inventor： Yoshihiro Shinkai ,  Masahito Koeda ,  Kyotaro Abe

IPC: H01F1/153 ,  H01F27/255 ,  B22F1/00 ,  B22F1/02 ,  B22F3/02 ,  B22F3/24 ,  C22C45/02 ,  H01F17/04 ,  H01F1/26 ,  H01F17/00 ,  H01F3/08 ,  H01F27/29

Abstract: The object of the present invention is to provide the soft magnetic material, the core, and the inductor having high permeability and excellent DC superimposition characteristic.A soft magnetic material comprising a soft magnetic metal powder and a resin, wherein said soft magnetic metal powder is constituted from a particle group α and a particle group β, when IA is a peak intensity of the particle group α, Vα is the volume of the particle group α, IB is a peak intensity of the particle group β, Vβ is the volume of the particle group β, and IC is a minimum intensity present between the particle group α and the particle group β, then an intensity ratio IC/IA satisfies 0.12 or less, and a volume ratio Vα/Vβ is 2.0 or more and 5.1 or less.

公开(公告)号：US09245676B2

公开(公告)日：2016-01-26

申请号：US13687072

申请日：2012-11-28

Applicant: TDK CORPORATION

Inventor： Masahito Koeda ,  Yoshihiro Shinkai ,  Tomofumi Kuroda

IPC: H01F27/02 ,  H01F5/00 ,  H01F27/28 ,  H01F7/02 ,  H01F1/20 ,  H01F1/24 ,  H01F1/147 ,  H01F1/26 ,  H01F3/08

CPC classification number: H01F7/02 ,  H01F1/14733 ,  H01F1/20 ,  H01F1/24 ,  H01F1/26 ,  H01F3/08

Abstract: Provided are a soft magnetic alloy powder, a compact made from the soft magnetic alloy powder, a powder magnetic core including the compact, and a magnetic element including the powder magnetic core. The soft magnetic alloy powder contains Fe—Ni-based particles containing 38% to 48% by mass Ni, 1.0% to 15% by mass Co, and 1.2% to 10% by mass Si relative to the total mass of Fe, Ni, Co, and Si, the remainder being Fe. The Fe—Ni-based particles have an average size of more than 1 μm to less than 10 μm.

Abstract translation: 提供一种软磁性合金粉末，由软磁性合金粉末制成的压块，包括该压块的粉末磁芯，以及包括该粉末磁芯的磁性元件。 软磁性合金粉末含有相对于Fe，Ni的总质量，含有38质量％至48质量％的Ni，1.0质量％至15质量％的Co和1.2质量％至10质量％的Si的Fe-Ni基颗粒， Co和Si，其余为Fe。 Fe-Ni系颗粒的平均粒径大于1μm至小于10μm。