公开(公告)号：US11222739B2

公开(公告)日：2022-01-11

申请号：US16082159

申请日：2017-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Junichi Kotani ,  Nobuya Matsutani

IPC: H01F1/34 ,  C01G49/00 ,  H01F27/28 ,  H01F27/24

Abstract: Provided are a ferrite material, a composite magnetic body, a coil component, and a power supply device, having high magnetic permeability. Ferrite is ferromagnetic and is expressed by a chemical formula MnxSiyFezO4-δ, where 0 0, z>0, x+y+z=3, and δ≤0.5.

公开(公告)号：US10210987B2

公开(公告)日：2019-02-19

申请号：US15305941

申请日：2015-07-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Junichi Kotani ,  Nobuya Matsutani

IPC: H01F27/25 ,  H01F1/33 ,  H01F27/255 ,  H01F1/147 ,  H01F1/36 ,  H01F41/02 ,  H01F1/24 ,  H01F1/26

Abstract: A composite magnetic material includes first particles made of soft magnetic metal and second particles provided between first particles. Each of the second particles includes a first solid phase and a second solid phase. The composite magnetic material exhibits high magnetic characteristics.

公开(公告)号：US11056258B2

公开(公告)日：2021-07-06

申请号：US15547681

申请日：2016-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd. ,  THE DOSHISHA

Inventor： Ken Hirota ,  Masaki Kato ,  Junichi Kotani ,  Nobuya Matsutani

IPC: H01F1/34 ,  H01F1/03 ,  C01G49/00 ,  H01F41/02

Abstract: A production method for a magnetic material, which is expressed by a chemical structure formula Fe(Al1-xMnx)2O4, where 0

公开(公告)号：US10607763B2

公开(公告)日：2020-03-31

申请号：US15570520

申请日：2016-05-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Nobuya Matsutani ,  Toshiyuki Asahi ,  Junichi Kotani ,  Hiroshi Tomita ,  Hidenori Uematsu

IPC: H01F27/22 ,  H01F37/00 ,  H01F27/02 ,  H01F27/24 ,  H01F27/29

Abstract: A reactor includes a coil body, an exterior case, and a filler. The coil body includes a core and a coil wound around the core. The exterior case includes a metal structure and a resin frame. The metal structure has a bottom surface and a side wall provided to stand upright from the bottom surface. The bottom surface and the side wall of the metal structure are unitarily formed with each other. The frame is disposed at an opposite side to the bottom surface of the metal structure. The exterior case houses the core and the coil. The filler is filled between the exterior case and the coil body.

公开(公告)号：US10207323B2

公开(公告)日：2019-02-19

申请号：US15015731

申请日：2016-02-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Nobuya Matsutani ,  Takeshi Takahashi ,  Junichi Kotani

IPC: B22F1/00 ,  H01F1/24 ,  B22F1/02 ,  H01F1/33 ,  H01F27/255 ,  C22C38/02 ,  C22C38/06 ,  H01F1/147 ,  H02M11/00 ,  C22C38/00 ,  B82Y30/00

Abstract: A composite magnetic material includes a plurality of soft-magnetic metal powders, a first oxide that covers a surface of each of the plurality of soft-magnetic metal powders, and a second oxide that covers a surface of the first oxide and is interposed among the plurality of soft-magnetic metal powders each coated with the first oxide. The first oxide has a first recess in a surface, and the second oxide is provided in the first recess. With this configuration, peeling between the first oxide and the second oxide can be prevented, so that the composite magnetic material having high mechanical strength can be provided.