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    MAGNETIC BASE BODY CONTAINING METAL MAGNETIC PARTICLES AND ELECTRONIC COMPONENT INCLUDING THE SAME
    1.
    发明申请
    MAGNETIC BASE BODY CONTAINING METAL MAGNETIC PARTICLES AND ELECTRONIC COMPONENT INCLUDING THE SAME 审中-公开

    公开(公告)号：US20190392978A1

    公开(公告)日：2019-12-26

    申请号：US16426350

    申请日：2019-05-30

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Hitoshi MATSUURA

    IPC: H01F27/255 ,  H01F27/02

    Abstract: A magnetic base body in one embodiment of the invention includes first metal magnetic particles having a first average particle size, and second metal magnetic particles having a second average particle size smaller than the first average particle size. In the embodiment, a first insulating layer having a first thickness is provided on surfaces of the first metal magnetic particles, and a second insulating layer having a second thickness smaller than the first thickness is provided on surfaces of the second metal magnetic particles.

    COIL COMPONENT
    2.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20170287621A1

    公开(公告)日：2017-10-05

    申请号：US15465489

    申请日：2017-03-21

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Hirotaro SEINO ,  Shinsuke TAKEOKA ,  Hitoshi MATSUURA ,  Kenji OTAKE

    IPC: H01F27/28 ,  H01F1/14 ,  H01F27/29

    CPC classification number: H01F27/292 ,  H01F1/26 ,  H01F1/28 ,  H01F17/0013 ,  H01F17/04

    Abstract: A coil component has a magnetic body of rectangular solid shape, a coil with N turns (N is a positive number of 2 or greater) provided inside the magnetic body, an insulating intermediate part, and external electrodes. The coil has a first conductor layer, a second conductor layer, and an inter-layer connection part. The first conductor layer has a first multiple winding part which is wound around one axis with a first spacing. The second conductor layer has a second multiple winding part which is wound around the one axis with the first spacing and faces the first conductor layer. The insulating intermediate part is provided inside the magnetic body and forms, between the first conductor layer and second conductor layer, a second spacing corresponding to a thickness equal to or less than the product of the first spacing and (N−1).

    COIL COMPONENT
    3.
    发明申请
    COIL COMPONENT 有权

    公开(公告)号：US20210134506A1

    公开(公告)日：2021-05-06

    申请号：US17150979

    申请日：2021-01-15

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Masahiro HACHIYA ,  Hitoshi MATSUURA ,  Takayuki ARAI ,  Shuhei KURAHASHI ,  Hideo MACHIDA ,  Hidekazu TESHIGAWARA ,  Naoya HONMO

    IPC: H01F17/00 ,  B22F1/02 ,  H01F27/255 ,  H01F27/28 ,  H01F1/20 ,  H01F1/24 ,  H01F1/36 ,  H01F17/04 ,  H01F27/29

    Abstract: A coil component includes: a magnetic body part and a cover part covering one side of a magnetic layer part; and a coil part embedded in the magnetic body part. The magnetic body part is comprised of the following two types of layers: (A) an oblate soft magnetic grain-containing layer, and (B) a spherical grain-containing layer, wherein layer (A) extends over the entire range of the magnetic body part except for a portion including the coil part in a direction perpendicular to an axis direction of the coil part, layer (B) adjoins layer (A) in the axis direction. The cover part is constituted by multiple layers including one or more of layer(s) (A) and one or more of layer(s) (B) and extending over the entire range of the magnetic body part in the direction perpendicular to the axis direction.

    MAGNETIC MATERIAL AND COIL COMPONENT USING SAME
    4.
    发明申请
    MAGNETIC MATERIAL AND COIL COMPONENT USING SAME 有权
    使用相同的磁性材料和线圈组件

    公开(公告)号：US20140139311A1

    公开(公告)日：2014-05-22

    申请号：US14162427

    申请日：2014-01-23

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Hitoshi MATSUURA ,  Kenji OTAKE

    IPC: H01F1/33 ,  H01F27/255

    CPC classification number: H01F41/0246 ,  B22F2998/00 ,  B22F2998/10 ,  C22C38/34 ,  C22C2202/02 ,  H01F1/14783 ,  H01F1/14791 ,  H01F1/24 ,  H01F1/33 ,  H01F5/00 ,  H01F27/24 ,  H01F27/255 ,  Y10T428/249956 ,  B22F9/082 ,  B22F3/02 ,  B22F3/10 ,  B22F1/02 ,  C22C33/0278

    Abstract: A magnetic material contains multiple metal grains constituted by soft magnetic alloy and oxide film formed on a surface of the metal grains, which soft magnetic alloy includes Fe and a metal element that oxidizes more easily than Fe, wherein the magnetic material forms a grain compact having first bonding parts where adjacent metal grains are contacted and directly bonded together, second bonding parts where adjacent metal grains are bonded together via the oxide film formed around the entire surface of said adjacent metal grains other than the first bonding parts, and voids formed in an area other than the first and second bonding parts and surrounded by the oxide film.

    Abstract translation: 磁性材料包含由软磁性合金构成的多个金属颗粒和形成在金属颗粒的表面上的氧化膜，该软磁性合金包含Fe和比Fe更容易氧化的金属元素，其中磁性材料形成具有 相邻的金属颗粒接触并直接接合在一起的第一接合部分，通过形成在除了第一接合部分之外的所述相邻金属颗粒的整个表面上形成的氧化膜将相邻的金属颗粒结合在一起的第二接合部分， 除了第一和第二接合部分之外并被氧化物膜包围。

    COIL COMPONENT AND METHOD OF MANUFACTURING THE SAME
    5.
    发明公开
    COIL COMPONENT AND METHOD OF MANUFACTURING THE SAME 审中-公开

    公开(公告)号：US20230207180A1

    公开(公告)日：2023-06-29

    申请号：US17963507

    申请日：2022-10-11

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Hitoshi MATSUURA

    IPC: H01F27/255 ,  H01F27/28 ,  H01F41/02

    CPC classification number: H01F27/255 ,  H01F27/28 ,  H01F41/0246

    Abstract: An embodiment provides a coil component including a base body, and a coil conductor provided in the base body. At least partial region of the base body contains (i) a plurality of first metal magnetic particles having a first aspect ratio greater than one and having a first average particle size and (ii) a plurality of second metal magnetic particles having a second aspect ratio greater than the first aspect ratio, having a second average particle size less than the first average particle size. The first and second metal magnetic particles are oriented in a reference direction in the base body.

    METHOD FOR MANUFACTURING MAGNETIC GRAIN COMPACT
    8.
    发明申请
    METHOD FOR MANUFACTURING MAGNETIC GRAIN COMPACT 有权
    制造磁性粒子的方法

    公开(公告)号：US20160163448A1

    公开(公告)日：2016-06-09

    申请号：US15040534

    申请日：2016-02-10

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Hitoshi MATSUURA ,  Kenji OTAKE

    IPC: H01F41/02 ,  H01F1/24 ,  H01F1/147

    CPC classification number: H01F41/0246 ,  B22F2998/00 ,  B22F2998/10 ,  C22C38/34 ,  C22C2202/02 ,  H01F1/14783 ,  H01F1/14791 ,  H01F1/24 ,  H01F1/33 ,  H01F5/00 ,  H01F27/24 ,  H01F27/255 ,  Y10T428/249956 ,  B22F9/082 ,  B22F3/02 ,  B22F3/10 ,  B22F1/02 ,  C22C33/0278

    Abstract: A method for manufacturing a magnetic grain compact, includes: providing multiple metal grains constituted by soft magnetic alloy containing Fe, Si, and a metal element M that oxidizes more easily than Fe; compacting the metal grains; and forming oxide film formed on a surface of the metal grains, and forming first bonding parts where adjacent metal grains are directly contacted and bonded together, and second bonding parts where adjacent metal grains are bonded together via the oxide film formed around the entire surface of said adjacent metal grains other than the first bonding parts, by applying heat treatment to the compacted metal grains, thereby obtaining a magnetic grain compact.

    Abstract translation: 一种制造磁性颗粒压块的方法包括：提供由含有Fe，Si和比Fe更容易氧化的金属元素M的软磁性合金构成的多个金属颗粒; 压实金属颗粒; 以及形成在所述金属颗粒的表面上的氧化膜，并且形成相邻金属颗粒直接接触并接合在一起的第一接合部分，以及相邻金属颗粒通过形成在所述金属颗粒的整个表面周围的氧化膜 通过对压实的金属颗粒进行热处理，除了第一粘合部分之外的所述相邻金属颗粒，从而获得磁性颗粒成形体。

    COIL COMPONENT, CIRCUIT BOARD, ELECTRONIC DEVICE, AND METHOD OF MANUFACTURING COIL COMPONENT
    9.
    发明申请
    COIL COMPONENT, CIRCUIT BOARD, ELECTRONIC DEVICE, AND METHOD OF MANUFACTURING COIL COMPONENT 有权

    公开(公告)号：US20220277884A1

    公开(公告)日：2022-09-01

    申请号：US17591332

    申请日：2022-02-02

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Hitoshi MATSUURA

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

    Abstract: A coil component according to one aspect of the present invention includes: a coil conductor extending around a coil axis; and a magnetic base body intersecting the coil axis. The magnetic base body includes first metal magnetic particles, second metal magnetic particles, and magnetic gap portions, each of the first metal magnetic particles having a first elastic limit and a first relative permeability, each of the second metal magnetic particles having a second elastic limit smaller than the first elastic limit and a second relative permeability lower than the first relative permeability, each of the magnetic gap portions covering a surface of associated one of the first metal magnetic particles and configured such that a first thickness of the magnetic gap portion in a first direction along the coil axis is larger than a second thickness of the magnetic gap portion in a second direction perpendicular to the first direction.

    COIL COMPONENT AND METHOD OF MANUFACTURING THE SAME
    10.
    发明申请
    COIL COMPONENT AND METHOD OF MANUFACTURING THE SAME 有权

    公开(公告)号：US20220208445A1

    公开(公告)日：2022-06-30

    申请号：US17542932

    申请日：2021-12-06

    Applicant: TAIYO YUDEN CO., LTD.

    Inventor： Kazuki YOSHIDA ,  Hitoshi MATSUURA

    IPC: H01F41/02 ,  H01F27/29 ,  H01F17/04 ,  H01F17/00

    Abstract: A coil component according to one or more embodiments of the invention includes a base body including a plurality of metal magnetic particles, where each metal magnetic particle contains a metal element, a coil conductor including a buried portion provided in the base body and an exposed portion externally exposed through the base body, where the coil conductor is mainly composed of copper, and an insulating oxide layer covering a surface of the buried portion, where the insulating oxide layer contains copper element and an oxide of the metal element contained in the metal magnetic particles.

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