中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.012 seconds)

    FLUIDIZING PARTICLE AND MAGNETIC CORE
    1.
    发明申请
    FLUIDIZING PARTICLE AND MAGNETIC CORE 有权

    公开(公告)号：US20210299747A1

    公开(公告)日：2021-09-30

    申请号：US17211304

    申请日：2021-03-24

    Applicant: TDK CORPORATION

    Inventor： Kyotaro ABE ,  Hideharu MORO ,  Toshiaki KIKUCHI

    IPC: B22F1/02 ,  H01F1/147

    Abstract: The object of the present invention is to provide a fluidizing particle capable of improving a fluidity of a magnetic particle for a magnetic core and capable of improving a permeability of the magnetic core. The fluidizing particle includes a particle body having a magnetic property and a coating layer including a silicon compound covering the particle body, wherein a particle size of the fluidizing particle is 10 to 40 nm, and a circularity of the fluidizing particle is 0.55 or more.

    SOFT MAGNETIC MATERIAL, CORE, AND INDUCTOR
    2.
    发明申请
    SOFT MAGNETIC MATERIAL, CORE, AND INDUCTOR 审中-公开

    公开(公告)号：US20180197666A1

    公开(公告)日：2018-07-12

    申请号：US15868439

    申请日：2018-01-11

    Applicant: TDK CORPORATION

    Inventor： Yoshihiro SHINKAI ,  Takashi KAMIYA ,  Masahito KOEDA ,  Kyotaro ABE

    IPC: H01F1/24 ,  H01F27/255 ,  H01F1/153 ,  H01F3/08

    CPC classification number: H01F1/24 ,  H01F1/15308 ,  H01F1/26 ,  H01F3/08 ,  H01F17/04 ,  H01F27/255

    Abstract: A soft magnetic material comprising a soft magnetic metal powder and a resin, wherein the soft magnetic metal powder is constituted from a particle group α and group β, when IA is a peak intensity of the particle group α, IB is a peak intensity of the particle group β, and IC is a minimum intensity present between the particle group α and group β, then an intensity ratio IC/IA satisfies 0.10 or less and an intensity ratio IA/IB satisfies 1.2 or more and 3.0 or less, the particle group α having a maximum peak intensity in a size distribution of the soft magnetic metal powder, the particle group β having an peak intensity which is the second largest to the particle group α, and a peak particle size PA of the particle group α is larger than a peak particle size PB of the particle group β.

    MAGNETIC CORE AND MAGNETIC DEVICE
    3.
    发明公开
    MAGNETIC CORE AND MAGNETIC DEVICE 审中-公开

    公开(公告)号：US20230368959A1

    公开(公告)日：2023-11-16

    申请号：US18315581

    申请日：2023-05-11

    Applicant: TDK CORPORATION

    Inventor： Kyotaro ABE ,  Isao NAKAHATA

    IPC: H01F27/255 ,  H01F27/28 ,  H01F3/14

    CPC classification number: H01F27/255 ,  H01F27/2823 ,  H01F3/14

    Abstract: A magnetic core includes a first core and a second core. The first core includes a first opposing surface. The second core includes a second opposing surface. The first opposing surface and the second opposing surface are aligned so as to form at least a part of a closed magnetic circuit consisting of the first core and the second core. The first opposing surface and/or the second opposing surface has an arithmetic mean roughness Ra of 7 μm or more and less than 65 μm.

    MAGNETIC ALLOY RIBBON, LAMINATE, AND MAGNETIC CORE
    5.
    发明申请
    MAGNETIC ALLOY RIBBON, LAMINATE, AND MAGNETIC CORE 有权

    公开(公告)号：US20230085009A1

    公开(公告)日：2023-03-16

    申请号：US17893502

    申请日：2022-08-23

    Applicant: TDK CORPORATION

    Inventor： Kyotaro ABE ,  Isao NAKAHATA ,  Takuya TSUKAHARA

    IPC: H01F1/153 ,  C22C45/02 ,  H01F3/04

    Abstract: A specific depth at which a concentration of Fe reaches 10 at % is 18 nm or more and 500 nm or less from the first surface, and from the first surface to the specific depth, the concentration of Fe is less than 10 at %, and a positive increase region is present in which the concentration of Fe increases with a substantially positive concentration gradient, in a case where the concentration of Fe is measured in a depth direction from a first surface of a ribbon.

Patent Agency Ranking