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：US11585013B2

公开(公告)日：2023-02-21

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 ,  C30B29/16 ,  C30B23/02 ,  B32B15/01 ,  H01F1/147 ,  C22C38/10 ,  C22C38/06 ,  C23C14/35 ,  C23C14/18 ,  C22C5/04 ,  C22C30/00 ,  C23C14/34 ,  B32B15/04 ,  C23C28/02 ,  C23C30/00 ,  B32B15/18 ,  C22C19/07 ,  B32B15/20

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：US11456097B2

公开(公告)日：2022-09-27

申请号：US16295074

申请日：2019-03-07

Applicant: TDK Corporation

Inventor： Yusuke Ariake ,  Isao Kanada

IPC: H01F1/147 ,  H01F1/34 ,  H01F1/24 ,  H01F1/28

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.

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：US20200058429A1

公开(公告)日：2020-02-20

申请号：US16545517

申请日：2019-08-20

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

Inventor： Takao Suzuki ,  Tim Mewes ,  Gary Mankey ,  Claudia Mewes ,  Kyotaro Abe ,  Isao Kanada ,  Yusuke Ariake

IPC: H01F10/16 ,  C30B29/16 ,  C30B23/02 ,  C30B29/52 ,  C23C14/18 ,  C22C38/10 ,  C22C38/02

Abstract: An Fe—Co—Si alloy magnetic thin film contains, in terms of atomic ratio, 20% to 25% Co and greater than 0% to 20% Si. The Fe—Co—Si alloy magnetic thin film primarily has a body-centered cubic crystal structure. Among three directions of the crystal structure, one of the three directions is perpendicular to a substrate surface and the other two directions are parallel to the substrate surface. The Fe—Co—Si alloy magnetic thin film deposited onto MgO (100) has suitable magnetic properties, that is, a high magnetization of 1100 to 1725 emu/cc, a coercive force of less than 95 Oe, and an effective damping parameter of less than 0.001.