公开(公告)号：US20240347244A1

公开(公告)日：2024-10-17

申请号：US18634412

申请日：2024-04-12

申请人： NICHIA CORPORATION

发明人： Ryoya OKAZAKI ,  Jun NISHITSUJI ,  Satoshi ABE ,  Jun AKAMATSU ,  Nobuyoshi IMAOKA

IPC分类号： H01F1/153

CPC分类号： H01F1/15383 ,  H01F1/15308

摘要： A method of producing a coated soft magnetic material, including: a coating procedure including mixing an aqueous solution containing a phosphate compound and a metal oxoacid compound with a soft magnetic material to form a coating containing a metal phosphorus compound on a surface of the soft magnetic material.

公开(公告)号：US20240240296A1

公开(公告)日：2024-07-18

申请号：US18413467

申请日：2024-01-16

申请人： SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

发明人： Eun Soo PARK ,  Wookha RYU ,  Kyungjun KIM ,  Kook Noh YOON ,  Wan KIM

IPC分类号： C22C45/02 ,  C22C33/00 ,  H01F1/153

CPC分类号： C22C45/02 ,  C22C33/003 ,  H01F1/15308

摘要： The present disclosure relates to a complex concentrated soft magnetic amorphous alloy with multi-complex quenched-in nuclei and a method for manufacturing the same, and more specifically, to a complex concentrated soft magnetic amorphous alloy which exhibits low coercivity while improving glass forming ability through the design of configurational entropy control complex alloying composition of a first main element group (Fe, Co, Ni), which determines the degree of magnetization as ferromagnetic metallic elements, a second alloying element group (B, Si, P, C), which facilitates amorphous formation, and a third cluster element group (Ca, Cu, Ag), which forms multi-complex quenched-in nuclei, and a method for manufacturing the same.
The complex concentrated soft magnetic amorphous alloy developed in the present disclosure is characterized by having an excellent switching effect in which the alloy is easily magnetized and demagnetized when a magnetic field is applied and removed by implementing low coercivity. In addition, the present disclosure provides guidelines for alloy development to develop a new alloy with excellent functionality realized by applying a complex concentrated alloy design method to amorphous alloy design. In addition, the present disclosure has presented a step of performing a precise heat treatment based on the (time)-(temperature)-(transformation) curve measurement of the manufactured complex concentrated soft magnetic amorphous alloy, thereby presenting a method capable of effectively controlling an amorphous structure control that has been optimized through the existing trial and error method based on the prediction.

公开(公告)号：US20240212901A1

公开(公告)日：2024-06-27

申请号：US18287055

申请日：2022-03-23

申请人： Magnetec GmbH

发明人： Thomas Wentzlik

IPC分类号： H01F1/153 ,  H01F41/02

CPC分类号： H01F1/15308 ,  H01F1/15333 ,  H01F41/0246

摘要： The invention relates to a magnetic field-sensitive component, said magnetic field-sensitive component having particles of a soft magnetic material. In this manner, a magnetic field-sensitive component with a shape that is as flexible as possible can be achieved with a particularly low coercive field strength and a particularly high saturation flux density. By virtue of the design of magnetic field-sensitive component, the effective permeability is reduced and the saturation field strength can thereby be advantageously increased. Overall, a particularly good thermal stability of the magnetic field-sensitive component is thereby produced. The invention additionally relates to a method for producing a magnetic field-sensitive component and to the use of the magnetic field-sensitive component.

公开(公告)号：US11817245B2

公开(公告)日：2023-11-14

申请号：US15882476

申请日：2018-01-29

申请人： Murata Manufacturing Co., Ltd.

发明人： Toru Takahashi ,  Kazuhiro Henmi ,  Noriharu Yodoshi ,  Akihiro Makino

IPC分类号： B22F1/00 ,  B22F9/08 ,  B22F5/00 ,  H01F1/147 ,  H01F27/255 ,  H01F27/28 ,  H01F1/153 ,  H01F17/04 ,  C22C45/02 ,  B22F1/05 ,  B22F1/08 ,  C22C38/00 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/16 ,  H02K1/02

CPC分类号： H01F17/04 ,  B22F1/05 ,  B22F1/08 ,  B22F5/00 ,  B22F9/082 ,  C22C38/002 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/16 ,  C22C45/02 ,  H01F1/14741 ,  H01F1/15308 ,  H01F1/15375 ,  H01F27/255 ,  H01F27/28 ,  B22F2005/004 ,  B22F2009/0824 ,  B22F2301/35 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2200/02 ,  C22C2202/02 ,  H02K1/02 ,  B22F2999/00 ,  B22F2009/0824 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2998/10 ,  B22F9/082 ,  B22F1/10 ,  B22F3/02 ,  B22F5/106 ,  B22F2998/10 ,  B22F1/10 ,  B22F1/08 ,  B22F5/106 ,  B22F3/02 ,  B22F9/082

摘要： A soft magnetic powder according to the present disclosure comprises a particle having no hollow part as a main component, wherein a number of hollow particle present in a region of 2.5 mm square is 40 or less in a cross section of a molded body obtained by powder-compacting and molding the soft magnetic powder so as to have a volume filling rate of 75% or more and 77% or less (i.e., from 75% to 77%).

公开(公告)号：US11770022B2

公开(公告)日：2023-09-26

申请号：US17751658

申请日：2022-05-23

申请人： Shenzhen YN Tech Co., Ltd.

发明人： Kevin Li ,  James Wang ,  Jeff Zhang ,  Danny Ma ,  Lavin Li ,  Terrence Zeng

IPC分类号： H01F27/36 ,  H01F1/153 ,  C22C45/02 ,  H02J50/10 ,  H02J50/70

CPC分类号： H02J50/10 ,  C22C45/02 ,  H01F1/15308 ,  H01F1/15333 ,  H01F1/15341 ,  H01F27/36 ,  H02J50/70

摘要： A nanocrystalline magnetic conductive sheet for wireless charging and a preparation method therefor are provided. The nanocrystalline magnetic conductive sheet includes a composition of Fe(100-x-y-z-α-β-γ)MxCuyM′zSiαBβXγ, saturation magnetic induction is greater than or equal to 1.25T. The preparation method includes preparing an alloy with a preset composition of into an alloy strip with an initial state of amorphousness by a single roll rapid quenching method, annealing an amorphous alloy strip according to a preset annealing process, to obtain a nanocrystalline strip, performing a magnetic fragmentation process on the nanocrystalline strip, to obtain the nanocrystalline magnetic conductive sheet for wireless charging.

公开(公告)号：US20230260685A1

公开(公告)日：2023-08-17

申请号：US17670709

申请日：2022-02-14

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Leyi Zhu ,  Franco Leonardi ,  Michael W. Degner

IPC分类号： H01F1/153 ,  H01F3/08 ,  H01F27/245 ,  H01F27/255

CPC分类号： H01F1/15308 ,  H01F3/08 ,  H01F27/245 ,  H01F27/255

摘要： Magnetic cores including a bonding material having magnetic filler therein is disclosed, as well as devices including the same. The magnetic cores may have superior magnetic properties or adopt the benefits of both soft magnetic composite cores and laminate cores. The magnetic cores disclosed herein exhibit greater relative magnetic permeability in the normalized direction as well as greater saturation flux density.

公开(公告)号：US11715591B2

公开(公告)日：2023-08-01

申请号：US17210714

申请日：2021-03-24

申请人： PROTERIAL, LTD.

发明人： Tsugitomo Nakada

IPC分类号： H01F7/06 ,  H01F41/02 ,  H01F1/153 ,  H01F1/24 ,  H01F3/08 ,  H01F27/25 ,  H01F41/068

CPC分类号： H01F41/0246 ,  H01F1/15308 ,  H01F1/24 ,  H01F3/08 ,  H01F27/25 ,  H01F41/0226 ,  H01F41/068

摘要： [PROBLEM] To provide a wound magnetic core and a method for manufacturing a wound magnetic core permitting improvement of insulation between ribbon layers in a wound magnetic core at which soft magnetic metal ribbon has been wound to form an annular wound body.
[SOLUTION MEANS] A nonmagnetic insulating metal oxide powder is made to adhere to a surface of a soft magnetic metal ribbon having an amorphous structure; this is wound in annular fashion and made into a wound body at which the metal oxide powder intervenes between ribbon layers; the wound body is made to undergo heat treatment in a nonoxidizing atmosphere; the wound body is thereafter subjected to treatment for formation of an oxide film in an oxidizing atmosphere adjusted to be at a temperature lower than that at the heat treatment to cause oxidation of the surface of the soft magnetic metal ribbon; and spaces between ribbon layers at the wound body are moreover impregnated with resin and curing is carried out to fuse the metal oxide powder thereto.

公开(公告)号：US20190237229A1

公开(公告)日：2019-08-01

申请号：US16260715

申请日：2019-01-29

申请人： TDK CORPORATION

发明人： Kazuhiro YOSHIDOME ,  Hiroyuki MATSUMOTO ,  Kenji HORINO ,  Akito HASEGAWA ,  Syota GOTO ,  Masakazu HOSONO ,  Hajime AMANO ,  Isao NAKAHATA

IPC分类号： H01F1/147 ,  C22C38/12 ,  C22C38/00 ,  B22D23/00 ,  C21D9/52 ,  C21D6/00

CPC分类号： H01F1/14733 ,  B22D23/003 ,  B22F1/00 ,  B22F3/00 ,  C21D1/26 ,  C21D1/30 ,  C21D6/00 ,  C21D6/001 ,  C21D6/007 ,  C21D6/008 ,  C21D8/1255 ,  C21D9/46 ,  C21D9/52 ,  C21D2201/03 ,  C22C33/02 ,  C22C33/0214 ,  C22C33/0257 ,  C22C33/0264 ,  C22C33/0271 ,  C22C33/0278 ,  C22C33/0285 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/105 ,  C22C38/12 ,  C22C38/16 ,  C22C38/40 ,  C22C38/52 ,  C22C45/008 ,  C22C45/02 ,  C22C45/04 ,  C22C2200/02 ,  C22C2200/04 ,  C22C2202/02 ,  H01F1/147 ,  H01F1/14716 ,  H01F1/14766 ,  H01F1/14775 ,  H01F1/14791 ,  H01F1/15308 ,  H01F1/15333

摘要： A soft magnetic alloy has a main component of Fe. The soft magnetic alloy contains P. A Fe-rich phase and a Fe-poor phase are contained. An average concentration of P in the Fe-poor phase is 1.5 times or larger than an average concentration of P in the soft magnetic alloy by number of atoms.

公开(公告)号：US20190221342A1

公开(公告)日：2019-07-18

申请号：US16244633

申请日：2019-01-10

申请人： TDK CORPORATION

发明人： Kazuhiro YOSHIDOME ,  Akihiro HARADA ,  Hiroyuki MATSUMOTO ,  Kenji HORINO ,  Akito HASEGAWA ,  Kensuke ARA ,  Hajime AMANO ,  Masakazu HOSONO

IPC分类号： H01F1/153 ,  H01F1/147

CPC分类号： H01F1/15308 ,  C22C38/42 ,  C22C45/02 ,  H01F1/147 ,  H01F1/153 ,  H01F1/15333 ,  H01F41/02 ,  H01F41/0226 ,  H01F41/0246

摘要： A soft magnetic alloy includes a main component of (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e))MaBbPcSidCe. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020≤a≤0.14 is satisfied. 0.020

公开(公告)号：US20190172617A1

公开(公告)日：2019-06-06

申请号：US16189167

申请日：2018-11-13

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kiyotaka ONODERA

IPC分类号： H01F1/153 ,  C22C38/16 ,  C22C33/00 ,  C22C45/02

CPC分类号： H01F1/15308 ,  B32B15/013 ,  B32B15/015 ,  C22C33/003 ,  C22C38/16 ,  C22C45/02 ,  H01F1/15333

摘要： It is an object of the present disclosure to produce a soft magnetic material having high saturation magnetization by heat-treating a Fe-based amorphous alloy, without needing the control of the atmosphere.The present disclosure provides a method for producing a soft magnetic material, comprising heat treating a Fe-based amorphous alloy in a state in which the alloy is wrapped with a sheet comprising one or more substances having a standard Gibbs energy of formation of an oxide thereof that is larger in a negative direction than Fe, to form a crystal phase.