公开(公告)号：US12075606B2

公开(公告)日：2024-08-27

申请号：US17607991

申请日：2020-05-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael S. Graff ,  Derek J. Dehn ,  Paul T. Hines ,  Charles L Bruzzone ,  Bharat R. Acharya ,  Ronald D. Jesme ,  William J. Kopecky ,  Jennifer J. Sokol ,  Sergei A. Manuilov

IPC: H05K9/00 ,  H01F1/20 ,  H01F1/26 ,  H01F1/28 ,  H01F27/36 ,  H01F38/14 ,  H01F41/16

CPC classification number: H05K9/0075 ,  H01F1/20

Abstract: A magnetic shielding film includes opposing first and second major surfaces and a plurality of particles dispersed therebetween, each particle having a magnetic permeability, a thickness H along a thickness direction of the particle, and a longest dimension L along a length direction of the particle orthogonal to the thickness direction, L/H greater than or equal to 2, the particles defining a plurality of voids therebetween, the length directions of at least 60% of the particles oriented within 5.5 degrees of a same orientation direction.

公开(公告)号：US20240246144A1

公开(公告)日：2024-07-25

申请号：US18563792

申请日：2022-05-20

Applicant: SHOEI CHEMICAL INC.

Inventor： Masashi UMEDA ,  Naoki ARIMITSU ,  Michiko USUI ,  Yuji SATO ,  Hayato TATENO

IPC: B22F1/16 ,  B22F1/05 ,  H01F1/20

CPC classification number: B22F1/16 ,  B22F1/05 ,  H01F1/20 ,  B22F2301/35 ,  B22F2302/25 ,  B22F2302/256 ,  B22F2302/45 ,  B22F2304/058 ,  B22F2304/10

Abstract: An insulated covered soft magnetic powder in accordance with embodiments of the present invention comprises a soft magnetic powder having an iron content of 99.0 wt. % or more wherein at least part of the surface of the soft magnetic powder is covered with an insulating covering oxide. The insulated covered soft magnetic powder has a 50% volume cumulative particle diameter (D50) by laser diffraction/scattering particle size distribution measurement of 0.01 μm to 2.0 μm, an oxygen content of 0.1 wt. % to 2.0 wt. %, a carbon content and a nitrogen content of the entire insulated covered soft magnetic powder of 0 wt. % to 0.2 wt. %, and 0 wt. % to 0.2 wt. %, respectively. The total content of oxygen, carbon and nitrogen of the insulated covered soft magnetic powder is 0.1 wt. % to 2.0 wt. % of the entire insulated covered soft magnetic powder.

公开(公告)号：US20240177902A1

公开(公告)日：2024-05-30

申请号：US18358191

申请日：2023-07-25

Applicant: TDK CORPORATION

Inventor： Kazuhiro YOSHIDOME ,  Kensuke ARA

IPC: H01F1/20 ,  B22F1/052 ,  B22F1/08 ,  B22F1/103 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F3/24 ,  B22F9/08

CPC classification number: H01F1/20 ,  B22F1/052 ,  B22F1/08 ,  B22F1/103 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F3/24 ,  B22F9/082 ,  B22F2003/248 ,  B22F2009/0824 ,  B22F2301/35 ,  B22F2304/10 ,  B22F2998/10

Abstract: Provided is a magnetic core containing metal magnetic particles. A total area ratio occupied by the metal magnetic particles on a cross-section of the magnetic core is 75% or more. The metal magnetic particles include first large particles having an amorphous structure and having a Heywood diameter of 3 μm or more on the cross-section of the magnetic core, and second large particles having a nanocrystal structure and having a Heywood diameter of 3 μm or more on the cross-section of the magnetic core. An insulation coating of the first large particles is thicker than an insulation coating of the second large particles.

公开(公告)号：US11767584B2

公开(公告)日：2023-09-26

申请号：US17741505

申请日：2022-05-11

Applicant: Seiko Epson Corporation

Inventor： Toshiki Sano

IPC: C22C38/32 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C38/02 ,  H01F1/20 ,  H01F27/255 ,  H01F41/02 ,  H01F1/147

CPC classification number: C22C38/32 ,  C22C38/02 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  H01F1/14791 ,  H01F1/20 ,  H01F27/255 ,  H01F41/0246 ,  C22C2200/02 ,  C22C2202/02

Abstract: Provided is soft magnetic powder containing an amorphous metal particle having a composition expressed by a compositional formula Fe100-a-b-c-d-e-f-gCraSibBcCdAleTifCog. Here, a, b, c, d, e, f, and g are that express atom %, 0

公开(公告)号：US20230298801A1

公开(公告)日：2023-09-21

申请号：US18021057

申请日：2021-08-02

Applicant: AUTONETWORKS TECHNOLOGIES, LTD. ,  SUMITOMO WIRING SYSTEMS, LTD. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Masaya MURASHITA ,  Kazuhiro INABA ,  Kohei YOSHIKAWA

IPC: H01F27/255 ,  H01F37/00 ,  H01F1/20 ,  H01F27/30

CPC classification number: H01F27/255 ,  H01F37/00 ,  H01F1/20 ,  H01F27/306

Abstract: A reactor is provided with a coil and a magnetic core. The magnetic core includes a first core and a second core formed into a θ shape by being combined in an X direction. The first core includes a first end core part, at least a part of a middle core part, at least parts of both side core parts including a first side core part and a second side core part. The second core includes a second end core part, a remaining part of the middle core part and remaining parts of the first and second side core parts. A relative magnetic permeability of the second core is higher than that of the first core. Each of the first and second side core parts of the first core has a tip surface. A surface of the second core has facing surfaces facing the tip surfaces.

公开(公告)号：US11756717B2

公开(公告)日：2023-09-12

申请号：US16856220

申请日：2020-04-23

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Nobuyuki Miyasou

IPC: H01F27/02 ,  H01F17/00 ,  H01F1/147 ,  H01F27/255 ,  H01F41/04 ,  H01F27/28 ,  H01F1/20

CPC classification number: H01F17/0013 ,  H01F1/14766 ,  H01F1/20 ,  H01F27/027 ,  H01F27/255 ,  H01F27/2804 ,  H01F41/04 ,  H01F2027/2809

Abstract: A coil component includes: a laminate including a magnetic portion and an insulator, the insulator having a higher insulation quality than the magnetic portion; a first external electrode; a second external electrode; and a coil conductor provided in the laminate, wherein the coil conductor includes a plurality of conductor patterns each extending along a planar direction perpendicular to the coil axis, the plurality of conductor patterns being separated from each other in the direction of the coil axis, the plurality of conductor patterns include a first conductor pattern and a second conductor pattern, the first conductor pattern contacting with the first external electrode, the second conductor pattern contacting with the second external electrode, and in the planar direction, the insulator is provided between the first conductor pattern and the second external electrode and between the second conductor pattern and the first external electrode.

公开(公告)号：US11728077B2

公开(公告)日：2023-08-15

申请号：US17482861

申请日：2021-09-23

Applicant: Intel Corporation

Inventor： Brandon C. Marin ,  Frank Truong ,  Shivasubramanian Balasubramanian

IPC: H01F1/20 ,  H01F27/28 ,  H01L23/00 ,  H01L23/64 ,  H01L23/498 ,  H01F17/00

CPC classification number: H01F1/20 ,  H01F17/0013 ,  H01F17/0033 ,  H01F27/2804 ,  H01L23/49838 ,  H01L23/645 ,  H01L24/16 ,  H01F2027/2809 ,  H01L2224/16227 ,  H01L2924/19042 ,  H01L2924/19103

Abstract: A magnetic material may be fabricated with a plurality of magnetic filler particles dispersed within a carrier material, wherein at last one of the magnetic filler particles may comprise a ferromagnetic core coated with an inert material to form a shell surrounding the ferromagnetic core. Such a coating may allow for the use of ferromagnetic materials for forming embedded inductors in package substrates without the risk of being incompatible with fabrication processes used to form these package substrates.

公开(公告)号：US20230230738A1

公开(公告)日：2023-07-20

申请号：US18097556

申请日：2023-01-17

Applicant: TDK Corporation

Inventor： Yusuke NAGAI ,  Kazuhiro EBINA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Shinichi SATO ,  Seiichi NAKAGAWA ,  Mitsuharu KOIKE ,  Takato SASAKI ,  Youhei IIDA

IPC: H01F5/04 ,  H01F5/06 ,  H01F27/29 ,  H01F27/32 ,  H01F1/20

CPC classification number: H01F5/04 ,  H01F5/06 ,  H01F27/292 ,  H01F27/323 ,  H01F1/20

Abstract: A coil component includes an element body, a coil and a first electrode part. The element body includes a main surface which is used as a mounting surface. The coil is disposed in the element body. The first electrode part is embedded in the element body and electrically connected to the coil. The first electrode part includes a first surface exposed from the main surface and a second surface opposing the first surface. An area of the first surface is larger than an area of the second surface when viewed from a direction orthogonal to the first surface.

公开(公告)号：US20230212722A1

公开(公告)日：2023-07-06

申请号：US17822551

申请日：2022-08-26

Applicant: Murata Manufacturing Co., Ltd. ,  Tohoku Magnet Institute Co., Ltd.

Inventor： Kazuhiro HENMI ,  Tatsuya TOMITA ,  Akira OKUMURA ,  Katsutoshi UJI ,  Toru TAKAHASHI

IPC: C22C38/56 ,  C22C38/02 ,  C22C38/54 ,  C22C38/52 ,  C22C45/02 ,  H01F1/153 ,  H01F1/20 ,  H01F3/08 ,  H01F5/00 ,  B22F1/05

CPC classification number: C22C38/56 ,  C22C38/02 ,  C22C38/54 ,  C22C38/52 ,  C22C45/02 ,  H01F1/153 ,  H01F1/20 ,  H01F3/08 ,  H01F5/00 ,  B22F1/05 ,  B22F2301/35 ,  B22F2304/10

Abstract: An alloy particle contains: total content of Fe and Co: from 82.2 to 96.5 parts by mass; Co: 0 to 30.0 parts by mass; P: 0 to 4.5 parts by mass; B: more than 0 to 5.0 parts by mass; C: 0 to 3.0 parts by mass; Si: 0 to 6.7 parts by mass; Ni: more than 0 to 12.0 parts by mass; Cr: more than 0 to 4.2 parts by mass; total content of Mo, W, Zr, and Nb: 0 to 4.2 parts by mass; total content of P and Cr: 7.4 parts by mass or less; multiplication product of the parts by mass of Ni and Cr: 0.5 or more; and total content of Fe, Co, and Ni: 97.0 parts by mass or less. The alloy particle contains an amorphous phase, and a volume percentage of the amorphous phase is 70% or higher.

公开(公告)号：US11694826B2

公开(公告)日：2023-07-04

申请号：US16728320

申请日：2019-12-27

Applicant: NICHIA CORPORATION

Inventor： Takashi Asada ,  Shuichi Tada

IPC: H01F1/059 ,  H01F1/055 ,  H01F1/20

CPC classification number: H01F1/059 ,  H01F1/0558 ,  H01F1/20

Abstract: The present disclosure aims to provide a bonded magnet having good magnetic properties and a method of preparing the bonded magnet. The present disclosure provides a method of preparing a bonded magnet, including: a first compression step of compressing a magnetic powder having an average particle size of 10 μm or less while magnetically orienting it to obtain a first molded article; a second compression step of bringing the first molded article into contact with a thermosetting resin having a viscosity of 200 mPa·s or less, followed by compression to obtain a second molded article; and a heat treatment step of heat treating the second molded article.