公开(公告)号：US20200211782A1

公开(公告)日：2020-07-02

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 ,  H01F27/40 ,  H01F27/28

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：US20190318860A1

公开(公告)日：2019-10-17

申请号：US16345351

申请日：2017-04-20

Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA ,  TDK CORPORATION

Inventor： Takao SUZUKI ,  Tim MEWES ,  Gary J. MANKEY ,  Isao KANADA ,  Yusuke ARIAKE

IPC: H01F10/14 ,  C22C38/10 ,  C22C38/06 ,  C23C14/18 ,  C23C14/35 ,  C23C14/16 ,  C30B23/02 ,  C30B29/52 ,  H01F41/18

Abstract: An Fe—Al alloy magnetic thin film according to the present invention contains, in terms of atomic ratio, 0% to 35% (inclusive of 0%) of Co and 1.5% to 2% of Al. A direction of a crystal contained in a material is perpendicular to a substrate surface and a crystallite size is 150 Å or less. Methods of making and using said thin film are also disclosed.

公开(公告)号：US20230384298A1

公开(公告)日：2023-11-30

申请号：US18175036

申请日：2023-02-27

Applicant: TDK CORPORATION

Inventor： Yusuke ARIAKE ,  Kazuhiro YOSHIDOME ,  Isao KANADA

IPC: G01N33/543 ,  G01N27/74 ,  H01F1/20

CPC classification number: G01N33/54326 ,  G01N27/745 ,  H01F1/20

Abstract: A polymer particle containing magnetic material includes a core, an intermediate layer, and a polymer layer. The core includes magnetic fine particles having an average diameter of 5 nm or more and 30 nm or less. The intermediate layer is located outside the core and has a lower concentration of the magnetic fine particles than the core. The polymer layer covers the intermediate layer. A thickness of the intermediate layer is 5% or more and 60% or less of a radius of the polymer particle containing magnetic material.

公开(公告)号：US20200347516A1

公开(公告)日：2020-11-05

申请号：US16758915

申请日：2018-10-24

Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA ,  TDK CORPORATION

Inventor： Takao SUZUKI ,  Tim MEWES ,  Gary MANKEY ,  Isao KANADA ,  Yusuke ARIAKE

IPC: C30B29/52 ,  H01F1/147 ,  B32B15/01 ,  C30B29/16 ,  C22C38/10 ,  C22C38/06 ,  C23C14/35 ,  C23C14/18 ,  C30B23/02

Abstract: An Fe—Co—Al alloy magnetic thin film contains, in terms of atomic ratio, 20% to 30% Co and 1.5% to 2.5% Al. The Fe—Co—Al alloy magnetic thin film has a crystallographic orientation such that the (100) plane is parallel to a substrate surface and the direction is perpendicular to the substrate surface. The Fe—Co—Al alloy magnetic thin film has good magnetic properties, that is, a magnetization of 1440 emu/cc or more, a coercive force of less than 100 Oe, a damping factor of less than 0.01, and an FMR linewidth ΔH at 30 GHz of less than 70 Oe.

公开(公告)号：US20200211749A1

公开(公告)日：2020-07-02

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

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：US20190304644A1

公开(公告)日：2019-10-03

申请号：US16295074

申请日：2019-03-07

Applicant: TDK Corporation

Inventor： Yusuke ARIAKE ,  Isao KANADA

IPC: H01F1/147 ,  H01F1/34

Abstract: The present invention provides a composite magnetic body comprising metal particles containing Fe or Fe and Co as a main component and a resin, wherein an average major axis diameter of the metal particles is 30 to 500 nm, an average of the aspect ratios of the metal particles is 1.5 to 10, and a CV value of the aspect ratios is 0.40 or less.