公开(公告)号：US12125633B2

公开(公告)日：2024-10-22

申请号：US18071180

申请日：2022-11-29

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Shin Gyu Kim ,  Hyung Seok Kwak ,  Hyun Gon Lyu ,  Joon Chul Yun

IPC: H01F41/02 ,  B22F1/102 ,  B22F1/16 ,  C22C33/02 ,  H01F1/26 ,  H01F1/33 ,  H01F3/08

CPC classification number: H01F41/0246 ,  B22F1/102 ,  B22F1/16 ,  C22C33/02 ,  H01F1/26 ,  H01F1/33 ,  H01F3/08 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: A soft magnetic iron-based powder has a composite insulating film and a method for manufacturing the same and a method for manufacturing a soft magnetic composite are provided. The soft magnetic iron-based powder may include: an iron-based core powder formed in a powder form; a first layer formed on a surface of the iron-based core powder and coated with an inorganic material containing phosphate; a second layer formed on a surface of the first layer, in which sodium silicate, mica fine particle and bismuth (III) oxide fine particle are distributed; and a third layer formed on the surface of the first or second layer whose surface is exposed, in which an organic lubricant and an inorganic lubricant are distributed.

公开(公告)号：US12002609B2

公开(公告)日：2024-06-04

申请号：US17259368

申请日：2019-07-09

Applicant: BASF SE

Inventor： Rene Koenig ,  Rastko Joksimovic ,  Ingo Muenster ,  Volker Klock ,  Jae Hyung Hwang ,  Moritz Ehrenstein ,  Eike Hupe ,  Joachim Nilges ,  Ralf Liebscher ,  Christoffer Kieburg

IPC: H01F1/33 ,  B22F1/10 ,  B22F1/16 ,  H01F1/147

CPC classification number: H01F1/33 ,  B22F1/16 ,  H01F1/147 ,  B22F1/10 ,  B22F2999/00 ,  B22F1/16 ,  C22C2202/02 ,  C22C33/02 ,  B22F2998/10 ,  B22F1/102 ,  B22F1/10 ,  B22F3/02 ,  B22F5/00 ,  C22C33/02

Abstract: A soft-magnetic powder coated with a silicon-based coating, wherein the silicon-based coating comprises at least one fluorine containing composition of formula (I), Si1-0.75cMcO2-0.5cFd (I), wherein c is in the range of 0.01 to 0.5, d is in the range of 0.04 to 2, and M is B or Al.

公开(公告)号：US11972885B2

公开(公告)日：2024-04-30

申请号：US14241240

申请日：2012-01-05

Applicant: Kenji Otake ,  Hitoshi Matsuura

Inventor： Kenji Otake ,  Hitoshi Matsuura

IPC: H01F1/24 ,  H01F1/33 ,  H01F17/00 ,  H01F17/04

CPC classification number: H01F1/24 ,  H01F1/33 ,  H01F17/0033 ,  H01F17/04 ,  H01F2017/048

Abstract: A magnetic material includes a grain compact in which metal grains having oxide films are compacted, wherein the metal grains are constituted by Fe—Si-M soft magnetic alloy (where M represents a metal element that oxidizes more easily than iron), the metal grains in the grain compact are mutually bonded with adjacent metal grains by inter-bonding of their oxide films, and at least some of this bonding of oxide films takes the form of bonding of crystalline oxides, or preferably at least some of the bonding of oxides is based on continuous lattice bond. A coil component has a coil on an interior or surface of an element body wherein the element body uses the magnetic material.

公开(公告)号：US20240105381A1

公开(公告)日：2024-03-28

申请号：US18464853

申请日：2023-09-11

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Motoki MATSUI ,  Tomoo KASHIWA

IPC: H01F27/29 ,  H01F1/24 ,  H01F1/33 ,  H01F17/04 ,  H01F41/02

CPC classification number: H01F27/292 ,  H01F1/24 ,  H01F1/33 ,  H01F17/045 ,  H01F41/0246 ,  H01F2017/048

Abstract: At least one embodiment of the present invention provides a coil component including a base body; a coil conductor provided in the base body; a first external electrode electrically connected to the coil conductor; and a second external electrode electrically connected to the coil conductor. In at least one embodiment of the present invention, the base body includes a first group of metal magnetic particles and a resin binder, where the first group of metal magnetic particles has a plurality of first metal magnetic particles, the first group of metal magnetic particles has a first average circularity greater than 0.8, each of the first metal magnetic particles contains a main component and an additive, the main component includes at least one of Fe or Ni, and the additive accounts for less than 10 wt %.

公开(公告)号：US20240079175A1

公开(公告)日：2024-03-07

申请号：US18502766

申请日：2023-11-06

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Hirotaka WAKABAYASHI

IPC: H01F27/28 ,  H01F1/33 ,  H01F27/32 ,  H05K1/16

CPC classification number: H01F27/2804 ,  H01F1/33 ,  H01F27/32 ,  H05K1/162 ,  H05K1/165 ,  H01F2027/2809

Abstract: One object of the present invention is to provide an electronic component less prone to migration of impurity atoms between a conductor and an external electrode. A coil component as an electronic component includes: a base body; a conductor; a first external electrode electrically connected to the conductor; a second external electrode electrically connected to the conductor; and a metal film positioned between the conductor and the first external electrode, wherein the metal film contains metal particles configured such that an average of β/α is 0.8 to 1.2, where for each of the metal particles, α is a dimension of the metal particle in a direction horizontal to a boundary interface, and β is a dimension of the metal particle in a direction perpendicular to the boundary interface.

公开(公告)号：US11776727B2

公开(公告)日：2023-10-03

申请号：US17107616

申请日：2020-11-30

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Gota Shinohara ,  Takuya Ishida

IPC: H01F17/04 ,  H01F1/26 ,  H01F17/00 ,  H01F27/255 ,  H01F27/28 ,  H01F27/29 ,  H01F41/04 ,  H01F41/10 ,  H01F1/147 ,  H01F1/33 ,  H01F1/153 ,  B22F1/16 ,  B22F1/08 ,  B22F3/02 ,  B22F5/10 ,  B22F1/10

CPC classification number: H01F17/04 ,  B22F1/08 ,  B22F1/16 ,  H01F1/14733 ,  H01F1/15333 ,  H01F1/15375 ,  H01F1/26 ,  H01F1/33 ,  H01F17/0013 ,  H01F27/255 ,  H01F27/2852 ,  H01F27/292 ,  H01F41/042 ,  H01F41/10 ,  B22F1/10 ,  B22F3/02 ,  B22F5/106 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F2017/048 ,  B22F9/002 ,  B22F1/16 ,  B22F2998/10 ,  B22F1/10 ,  C22C1/05 ,  B22F3/02 ,  B22F3/10 ,  B22F5/106 ,  B22F2999/00 ,  B22F1/10 ,  C22C2202/02 ,  C22C33/0257 ,  B22F2999/00 ,  B22F1/16 ,  B22F1/102 ,  B22F1/08 ,  B22F9/002 ,  C22C33/0257 ,  B22F2999/00 ,  C22C33/0257 ,  B22F9/002 ,  B22F1/16 ,  B22F1/08 ,  B22F2998/10 ,  C22C1/05 ,  B22F1/08 ,  B22F1/10 ,  B22F3/02 ,  B22F3/10 ,  B22F5/106

Abstract: A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion and having a core portion, and outer electrodes electrically connected to the coil conductor. The magnetic portion includes a magnetic outer coating and a magnetic base having a protrusion portion. The coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion. The magnetic outer coating is disposed so as to cover the coil conductor, and the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion.

公开(公告)号：US20230187110A1

公开(公告)日：2023-06-15

申请号：US18071796

申请日：2022-11-30

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Atsushi TANADA

IPC: H01F17/04 ,  H01F1/153 ,  H01F1/33 ,  H01F1/24 ,  H01F27/255 ,  H01F1/26 ,  B22F1/17 ,  B22F1/052 ,  B22F1/102

CPC classification number: H01F17/04 ,  H01F1/15375 ,  H01F1/33 ,  H01F1/24 ,  H01F27/255 ,  H01F1/26 ,  B22F1/17 ,  B22F1/052 ,  B22F1/102 ,  B22F1/10

Abstract: A composite magnetic body according to one aspect of the present invention includes a first metal magnetic particle covered with a first resin portion made of a first resin material and a second metal magnetic particle having a smaller particle size than the first metal magnetic particle, where the second metal magnetic particle is bound to the first metal magnetic particle via a second resin portion made of a second resin material, the second resin material having a softening point higher than the first resin material.

公开(公告)号：US11651881B2

公开(公告)日：2023-05-16

申请号：US16650647

申请日：2018-09-27

Applicant: POWDERTECH CO., LTD.

Inventor： Takashi Kojima ,  Kazutaka Ishii ,  Takao Sugiura ,  Tetsuya Igarashi ,  Koji Aga

IPC: H01F1/34 ,  H01F1/33 ,  H01F1/37 ,  H01F27/255 ,  C01G49/00 ,  C30B29/22

CPC classification number: H01F1/344 ,  C01G49/009 ,  C01G49/0072 ,  C30B29/22 ,  H01F1/33 ,  H01F1/37 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/42 ,  H01F27/255 ,  Y10T428/32

Abstract: Mn—Zn ferrite particles according to the present invention contain 44-60% by mass of Fe, 10-16% by mass of Mn and 1-11% by mass of Zn. The ferrite particles are single crystal bodies having an average particle diameter of 1-2,000 nm, and have polyhedral particle shapes, while having an average sphericity of 0.85 or more but less than 0.95.

公开(公告)号：US20180308609A1

公开(公告)日：2018-10-25

申请号：US15828150

申请日：2017-11-30

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Gota SHINOHARA ,  Takuya ISHIDA

IPC: H01F1/147 ,  H01F17/04 ,  H01F27/28 ,  H01F27/29 ,  H01F27/255 ,  H01F41/10 ,  H01F41/04 ,  B22F1/02 ,  H01F17/00 ,  H01F1/33

CPC classification number: H01F1/14733 ,  B22F1/02 ,  H01F1/33 ,  H01F17/0013 ,  H01F17/04 ,  H01F27/255 ,  H01F27/2852 ,  H01F27/292 ,  H01F41/042 ,  H01F41/10 ,  H01F2017/048

Abstract: A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion and having a core portion, and outer electrodes electrically connected to the coil conductor. The magnetic portion includes a magnetic outer coating and a magnetic base having a protrusion portion. The coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion. The magnetic outer coating is disposed so as to cover the coil conductor, and the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion.

公开(公告)号：US09892834B2

公开(公告)日：2018-02-13

申请号：US14141301

申请日：2013-12-26

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Hideki Ogawa ,  Atsushi Tanada

IPC: H01F27/24 ,  H01F17/04 ,  H01F5/00 ,  H01F1/40 ,  B22F1/02 ,  B22F3/10 ,  B22F3/24 ,  C22C38/02 ,  C22C38/06 ,  C22C38/34 ,  H01F1/26 ,  H01F1/33 ,  H01F1/01 ,  H01F27/28 ,  H01F1/24

CPC classification number: H01F1/408 ,  B22F1/02 ,  B22F3/1007 ,  B22F3/24 ,  C22C38/02 ,  C22C38/06 ,  C22C38/34 ,  H01F1/015 ,  H01F1/24 ,  H01F1/26 ,  H01F1/33 ,  H01F27/28

Abstract: A coil component having a magnetic material and a coil formed on a surface of or inside the magnetic material. The magnetic material is constituted by a grain compact formed by compacting multiple metal grains that in turn are constituted by an Fe—Si—M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe), wherein individual metal grains have oxide film formed at least partially around them; the grain compact is formed primarily via bonding between oxide films formed around adjacent metal grains; and the apparent density of the grain compact 1 is 5.2 g/cm3 or more, or preferably 5.2 to 7.0 g/cm3.