公开(公告)号：US20240293862A1

公开(公告)日：2024-09-05

申请号：US18655677

申请日：2024-05-06

申请人： Persimmon Technologies Corporation

发明人： Martin Hosek ,  Sripati Sah ,  Jayaraman Krishnasamy

IPC分类号： B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/02 ,  H02K1/02 ,  H02K1/12 ,  H02K1/22 ,  H02K3/28 ,  H02K21/12 ,  H02K21/16

CPC分类号： B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/0246 ,  H02K1/02 ,  H02K1/12 ,  H02K1/22 ,  H02K3/28 ,  H02K21/12 ,  H02K21/16 ,  C22C2202/02

摘要： A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.

公开(公告)号：US12051533B2

公开(公告)日：2024-07-30

申请号：US17843978

申请日：2022-06-18

申请人： Grant A. MacLennan ,  Hans Wennerstrom ,  Steve Schiffer ,  Matt Cotner ,  Saul Gonzalez

发明人： Grant A. MacLennan ,  Hans Wennerstrom ,  Steve Schiffer ,  Matt Cotner ,  Saul Gonzalez

IPC分类号： H01F5/00 ,  H01F27/08 ,  H01F27/10 ,  H01F27/255 ,  H01F27/26 ,  H01F27/28 ,  H01F27/30 ,  H01F27/32 ,  H01F37/00 ,  H02M1/12 ,  H01F1/24 ,  H01G4/38 ,  H01G4/40

CPC分类号： H01F27/2895 ,  H01F27/085 ,  H01F27/10 ,  H01F27/255 ,  H01F27/266 ,  H01F27/2823 ,  H01F27/2876 ,  H01F27/306 ,  H01F27/324 ,  H01F37/00 ,  H02M1/126 ,  H01F1/24 ,  H01F27/08 ,  H01G4/38 ,  H01G4/40 ,  H02M1/123 ,  Y02B70/10

摘要： The invention comprises an apparatus, comprising an inductor, the inductor comprising: an inductor core; a first winding section comprising a first cast shape and a second winding section comprising the first cast shape, the first winding section mechanically joined to the second winding section to form a winding, the winding forming a wound shape about the inductor core. Optionally and preferably, a third winding section, comprising a second cast shape, mechanically joins the first winding section to the second winding section and a mechanical connector and/or an aluminum weld join the first winding section to the third winding section.

公开(公告)号：US12046415B2

公开(公告)日：2024-07-23

申请号：US17219927

申请日：2021-04-01

申请人： Seiko Epson Corporation

发明人： Yasutaka Matsumoto ,  Sukenori Ichikawa

IPC分类号： H01F1/24 ,  B22F1/08 ,  B22F1/14 ,  B22F1/16 ,  B22F3/093 ,  H01F1/38 ,  H01F3/08 ,  H01F41/02

CPC分类号： H01F41/0246 ,  B22F1/08 ,  B22F1/14 ,  B22F1/16 ,  B22F3/093 ,  H01F1/24 ,  H01F3/08 ,  B22F2201/00 ,  B22F2202/01 ,  B22F2202/11 ,  B22F2998/10 ,  B22F2999/00 ,  H01F1/38 ,  B22F2999/00 ,  B22F1/14 ,  B22F1/08 ,  B22F2202/13 ,  B22F2202/11 ,  B22F2202/01 ,  B22F2998/10 ,  B22F1/16 ,  B22F1/14 ,  B22F3/02 ,  B22F3/10

摘要： A method for manufacturing a dust core, includes: applying energy to a surface of a soft magnetic powder coated with an insulating body containing a compound having an aluminum-oxygen bond; exposing the soft magnetic powder to an atmosphere having a dew point of −30° C. or higher and 15° C. or lower under an atmospheric pressure; and forming a molded product by pressing the soft magnetic powder at 20 MPa or more and 400 MPa or less.

公开(公告)号：US11996224B2

公开(公告)日：2024-05-28

申请号：US16651131

申请日：2018-09-21

申请人： TOKIN CORPORATION

发明人： Miho Chiba ,  Akiri Urata

IPC分类号： H01F17/04 ,  B22F1/054 ,  B22F1/07 ,  B22F1/10 ,  B22F3/02 ,  B22F3/24 ,  H01F1/153 ,  H01F1/24

CPC分类号： H01F17/04 ,  B22F1/054 ,  B22F1/07 ,  B22F1/10 ,  B22F3/02 ,  B22F3/24 ,  H01F1/153 ,  H01F1/24 ,  B22F2003/248 ,  B22F2301/35 ,  B22F2304/054 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/02 ,  B22F2003/248

摘要： This method for manufacturing a powder core is provided with: a step for heat-treating amorphous soft magnetic alloy powder to obtain nanocrystal powder; a step for obtaining granulated powder from nanocrystal powder, malleable powder, and a binder; a step for pressure-molding the granulated powder to obtain a green compact; a step for curing the binder by heat-treating the green compact at a temperature which is equal to or higher than the curing initiation temperature of the binder and lower than the crystallization initiation temperature of the amorphous soft magnetic alloy powder.

公开(公告)号：US11975386B2

公开(公告)日：2024-05-07

申请号：US17863486

申请日：2022-07-13

申请人： Persimmon Technologies, Corp.

发明人： Martin Hosek ,  Sripati Sah ,  Jayaraman Krishnasamy

IPC分类号： H02K3/28 ,  B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/02 ,  H02K1/02 ,  H02K1/12 ,  H02K1/18 ,  H02K1/22 ,  H02K21/12 ,  H02K21/16

CPC分类号： B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/0246 ,  H02K1/02 ,  H02K1/12 ,  H02K1/22 ,  H02K3/28 ,  H02K21/12 ,  H02K21/16 ,  C22C2202/02

摘要： A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.

公开(公告)号：US20240145141A1

公开(公告)日：2024-05-02

申请号：US18494448

申请日：2023-10-25

申请人： TAIYO YUDEN CO., LTD.

发明人： Takashi NAKAJIMA ,  Yuuhei UEYAMA

IPC分类号： H01F1/24 ,  H01F1/33 ,  H01F41/02

CPC分类号： H01F1/24 ,  H01F1/33 ,  H01F41/0246

摘要： Provided is a magnetic base body having excellent insulating properties and magnetic properties. A magnetic base body according to one embodiment includes: soft magnetic metal particles; and insulating films covering surfaces of the soft magnetic metal particles. The soft magnetic metal particles include a first soft magnetic metal particle, and the insulating films include a first insulating film covering a surface of the first soft magnetic metal particle. The first insulating film includes a first oxide region and a second oxide region, the first oxide region containing an oxide of an element A as a main component and covering a first surface region constituting a part of the surface of the first soft magnetic metal particle, the second oxide region containing an oxide of an element B as a main component and covering a second surface region of the first soft magnetic metal particle different from the first surface region.

公开(公告)号：US11942267B2

公开(公告)日：2024-03-26

申请号：US17352990

申请日：2021-06-21

申请人： Murata Manufacturing Co., Ltd.

发明人： Eigo Kobayashi

IPC分类号： H01F41/02 ,  B22F1/10 ,  B22F1/102 ,  B22F1/12 ,  B22F1/16 ,  B22F3/14 ,  C22C19/03 ,  C22C38/08 ,  H01F1/24 ,  H01F1/33 ,  H01F1/37

CPC分类号： H01F41/0246 ,  B22F1/10 ,  B22F1/102 ,  B22F1/12 ,  B22F1/16 ,  B22F3/14 ,  H01F1/24 ,  H01F1/33 ,  H01F1/37 ,  H01F41/0206 ,  C22C19/03 ,  C22C38/08 ,  C22C2202/02

摘要： A sintered body containing: a plurality of coated grains each having a metal magnetic body grain coated with a resin layer; a plurality of ferrite grains; and an amorphous phase between the plurality of coated grains and the plurality of ferrite grains. The amorphous phase may contain a metal element that is the same as a metal element contained in the ferrite grains.

公开(公告)号：US11915847B2

公开(公告)日：2024-02-27

申请号：US15915852

申请日：2018-03-08

申请人： TDK CORPORATION

发明人： Ryoma Nakazawa ,  Takeshi Takahashi

IPC分类号： H01F1/26 ,  H01F41/02 ,  H01F27/255 ,  H01F1/24 ,  H01F3/08 ,  H01F1/33 ,  B22F1/10 ,  B22F1/16 ,  B22F1/052

CPC分类号： H01F1/26 ,  B22F1/10 ,  B22F1/16 ,  H01F1/24 ,  H01F1/33 ,  H01F3/08 ,  H01F27/255 ,  H01F41/0246 ,  B22F1/052 ,  B22F2304/054 ,  B22F2304/056 ,  B22F2304/10

摘要： A dust core includes a metal magnetic material and a resin. Fine particles exist on a surface of the dust core.

公开(公告)号：US11901104B2

公开(公告)日：2024-02-13

申请号：US18172169

申请日：2023-02-21

申请人： Murata Manufacturing Co., Ltd.

发明人： Takuya Ishida ,  Mikito Sugiyama ,  Mitsuru Odahara ,  Hideaki Ooi ,  Koichi Ida

IPC分类号： H01F1/24 ,  H01F1/153 ,  H01F27/255 ,  H01F1/058 ,  B22F1/08 ,  B22F1/16 ,  B22F1/052 ,  B22F1/10

CPC分类号： H01F1/24 ,  B22F1/052 ,  B22F1/08 ,  B22F1/16 ,  H01F1/058 ,  H01F1/15375 ,  H01F27/255 ,  B22F1/10 ,  Y10T428/32 ,  B22F2998/10 ,  B22F1/08 ,  B22F1/16 ,  B22F1/052 ,  B22F1/107 ,  B22F7/02 ,  B22F3/02 ,  B22F3/22

摘要： A magnetic material and an inductor capable of attaining both higher magnetic permeability and improved DC superposition characteristics. A composite magnetic material contains metal magnetic particles, in which the metal magnetic particles include first particles having a median diameter D50 of 1.3 μm or more and 5.0 μm or less (i.e., from 1.3 μm to 5.0 μm), and second particles having a median diameter D50 larger than the first particles. The first and second particles each include a core portion made of a metal magnetic material, and an insulating film provided on a surface of the core portion. The insulating film of the second particles has an average thickness of 40 nm or more and 100 nm or less (i.e., from 40 nm to 100 nm). The insulating film of the first particles has an average thickness smaller than that of the insulating film of the second particles.

公开(公告)号：US11887762B2

公开(公告)日：2024-01-30

申请号：US16296367

申请日：2019-03-08

申请人： TDK CORPORATION

发明人： Satoko Mori ,  Hiroyuki Matsumoto ,  Kenji Horino ,  Kazuhiro Yoshidome ,  Takuma Nakano ,  Seigo Tokoro ,  Shota Otsuka ,  Toru Ujiie ,  Kentaro Mori

IPC分类号： H01F1/20 ,  H01F1/147 ,  H01F1/36 ,  H01F3/08 ,  H01F1/26 ,  H01F1/33 ,  H01F1/24 ,  H01F1/153 ,  H01F41/02

CPC分类号： H01F1/20 ,  H01F1/14733 ,  H01F1/24 ,  H01F1/26 ,  H01F1/33 ,  H01F1/36 ,  H01F3/08 ,  H01F1/15308 ,  H01F1/15333 ,  H01F41/0246

摘要： A soft magnetic metal powder comprising soft magnetic metal particles including Fe, wherein a surface of the soft magnetic metal particle is covered by a coating part having an insulation property, and the coating part includes a soft magnetic metal fine particle.