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    COIL COMPONENT
    4.
    发明申请
    COIL COMPONENT 审中-公开

    公开(公告)号：US20200279678A1

    公开(公告)日：2020-09-03

    申请号：US16800311

    申请日：2020-02-25

    申请人： TDK CORPORATION

    发明人： Kazuhiro Yoshidome ,  Hiroyuki Matsumoto ,  Hitoshi Ohkubo ,  Atsuyuki Nakano

    IPC分类号： H01F1/147 ,  H01F27/255 ,  H01F27/28

    摘要： A coil component having high inductance while suppressing core loss is obtained. The coil component includes a coil and a magnetic core. The magnetic core has a laminated body in which soft magnetic layers are laminated. The thickness of each of the soft magnetic layers is 10 μm or more and 30 μm or less. A structure made of Fe-based nano-crystals is observed in the soft magnetic layers.

    Soft magnetic alloy
    5.
    发明授权
    Soft magnetic alloy 有权

    公开(公告)号：US10541072B2

    公开(公告)日：2020-01-21

    申请号：US15718757

    申请日：2017-09-28

    申请人： TDK CORPORATION

    发明人： Kazuhiro Yoshidome ,  Hiroyuki Matsumoto ,  Yu Yonezawa ,  Syota Goto ,  Hideaki Yokota ,  Akito Hasegawa ,  Masahito Koeda ,  Seigo Tokoro

    IPC分类号： H01F1/147 ,  C22C38/02 ,  C22C38/12 ,  C22C38/16

    摘要： A soft magnetic alloy includes a main component of Fe. The soft magnetic alloy includes a Fe composition network phase where regions whose Fe content is larger than an average composition of the soft magnetic alloy are linked. The Fe composition network phase contains Fe content maximum points that are locally higher than their surroundings. A virtual-line total distance per 1 μm3 of the soft magnetic alloy is 10 mm to 25 mm provided that the virtual-line total distance is a sum of virtual lines linking the maximum points adjacent each other. A virtual-line average distance that is an average distance of the virtual lines is 6 nm or more and 12 nm or less.

    Soft magnetic alloy and magnetic component
    10.
    发明授权
    Soft magnetic alloy and magnetic component 有权

    公开(公告)号：US11495377B2

    公开(公告)日：2022-11-08

    申请号：US16971338

    申请日：2019-02-15

    申请人： TDK CORPORATION

    发明人： Hajime Amano ,  Akihiro Harada ,  Kenji Horino ,  Hiroyuki Matsumoto ,  Kazuhiro Yoshidome ,  Akito Hasegawa ,  Kensuke Ara ,  Masakazu Hosono

    IPC分类号： H01F1/153 ,  C22C45/00

    摘要： Provided is a soft magnetic alloy which has high saturation flux density and low coercivity and is represented by the compositional formula (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e+f))MaPbSicCudX3eBf, wherein X1 is at least one element selected from the group consisting of Co and Ni, X2 is at least one element selected from the group consisting of Ti, V, Mn, Ag, Zn, Al, Sn, As, Sb, Bi, and rare earth elements, X3 is at least one element selected from the group consisting of C and Ge, and M is at least one element selected from the group consisting of Zr, Nb, Hf, Ta, Mo, and W, and wherein 0.030≤a≤0.120, 0.010≤b≤0.150, 0≤c≤0.050, 0≤d≤0.020, 0≤e≤0.100, 0≤f≤0.030, α≥0, β≥0, and 0≤α+β≤0.55.