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公开(公告)号：EP3511957A3
公开(公告)日：2019-12-25
申请号：EP18213518.6
申请日：2018-12-18
申请人： TDK Corporation
发明人： YOSHIDOME, Kazuhiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , HASEGAWA, Akito , AMANO, Hajime , ARA, Kensuke , HARADA, Akihiro
摘要： A soft magnetic alloy which includes nanocrystal parts and amorphous parts is provided. The nanocrystal parts include αFe(-Si) as a main component, and include at least one of elements selected from B, P, C, Ti, Zr, Hf, Nb, Ta, Mo, V, W, Cr, Al, Mn, Zn, and Cu as a sub-component. When a total content ratio of the sub-component in the nanocrystal parts is set as α (at%), and a total content ratio of the sub-components of the nanocrystal parts included in the amorphous parts is set as β (at%), 0.01 ≤ (α/β) ≤ 0.40, and a crystallinity degree is 5% or more and 70% or less.
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公开(公告)号：EP3511958A3
公开(公告)日：2019-11-20
申请号：EP18215431.0
申请日：2018-12-21
申请人： TDK Corporation
发明人： YOSHIDOME, Kazuhiro , HARADA, Akihiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , HASEGAWA, Akito , ARA, Kensuke , AMANO, Hajime , HOSONO, Masakazu
摘要： A soft magnetic alloy includes a main component of (Fe (1-(α+β)) X1 α X2 β ) (1-(a+b+c+d+e+f+g)) M a B b P c Si d C e S f Ti g . X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020≤a≤0.14 is satisfied. 0.020≤b≤0.20 is satisfied. 0≤d≤0.060 is satisfied. 0≤f≤0.010 is satisfied. 0≤g≤0.0010 is satisfied. α≥0 is satisfied. β≥0 is satisfied. 0≤α+β≤0.50 is satisfied. At least one or more of f and g are larger than zero. c and e are within a predetermined range. The soft magnetic alloy has a nanohetero structure or a structure of Fe based nanocrystallines.
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公开(公告)号：EP3511959A2
公开(公告)日：2019-07-17
申请号：EP19151457.9
申请日：2019-01-11
申请人： TDK Corporation
发明人： YOSHIDOME, Kazuhiro , HARADA, Akihiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , HASEGAWA, Akito , ARA, Kensuke , AMANO, Hajime , HOSONO, Masakazu
摘要： A soft magnetic alloy includes a main component of (Fe (1-(α+β)) X1 α X2β) (1-(a+b+c+d+e)) M a B b P c Si d C e . X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020
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公开(公告)号：EP3441990A1
公开(公告)日：2019-02-13
申请号：EP18187827.3
申请日：2018-08-07
申请人： TDK Corporation
发明人： YOSHIDOME, Kazuhiro , HASEGAWA, Akito , MATSUMOTO, Hiroyuki , HORINO, Kenji , HARADA, Akihiro , GOTO, Syota , NAKAHATA, Isao
IPC分类号： H01F1/153
摘要： A soft magnetic alloy contains Fe as a main component and Si. The soft magnetic alloy is composed of a Fe-based nanocrystal and an amorphous phase. In the soft magnetic alloy, S2 - S1 > 0 is satisfied, where S1 (at%) denotes an average content rate of Si in the Fe-based nanocrystal and S2 (at%) denotes an average content rate of Si in the amorphous phase. In addition, the soft magnetic alloy has a composition formula of ((Fe (1-(α+β) )X1 α X2 β ) (1-(a+b+c+d+e+f)) M a B b Si c P d Cr e Cu f ) 1-g C g . X1 is one or more selected from the group consisting of Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, S and a rare earth element, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, V and W. In the composition formula, a to g, α and β are in specific ranges.
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公开(公告)号：EP3477664B1
公开(公告)日：2020-06-24
申请号：EP18198884.1
申请日：2018-10-05
申请人： TDK Corporation
发明人： HARADA, Akihiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , YOSHIDOME, Kazuhiro , HASEGAWA, Akito , AMANO, Hajime , ARA, Kensuke , TOKORO, Seigo , HOSONO, Masakazu , NAKANO, Takuma , MORI, Satoko
IPC分类号： H01F1/153
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公开(公告)号：EP3511959A3
公开(公告)日：2019-11-20
申请号：EP19151457.9
申请日：2019-01-11
申请人： TDK Corporation
发明人： YOSHIDOME, Kazuhiro , HARADA, Akihiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , HASEGAWA, Akito , ARA, Kensuke , AMANO, Hajime , HOSONO, Masakazu
摘要： A soft magnetic alloy includes a main component of (Fe (1-(α+β)) X1 α X2β) (1-(a+b+c+d+e)) M a B b P c Si d C e . X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020
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公开(公告)号：EP3567611A2
公开(公告)日：2019-11-13
申请号：EP19161526.9
申请日：2019-03-08
申请人： TDK Corporation
发明人： HOSONO, Masakazu , HORINO, Kenji , MATSUMOTO, Hiroyuki , YOSHIDOME, Kazuhiro , HASEGAWA, Akito , AMANO, Hajime , NAKAHATA, Isao
摘要： A soft magnetic alloy powder includes a plurality of soft magnetic alloy particles of a soft magnetic alloy represented by a composition formula (Fe(i- (α+β)) X1 α X2 β ) (1-(a+b+c+d+e)) M a B b P c Si d C e , wherein X1 represents Co and/or Ni; X2 represents at least one selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements; M represents at least one selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W, and V; 0.020≤a≤0.14, 0.020
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公开(公告)号：EP3366803A1
公开(公告)日：2018-08-29
申请号：EP18158955.7
申请日：2018-02-27
申请人： TDK Corporation
发明人： YOSHIDOME, Kazuhiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , HASEGAWA, Akito , YONEZAWA, Yu , GOTO, Syota , TOKORO, Seigo
IPC分类号： C22C45/02 , H01F41/02 , C22C33/00 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , H01F1/14 , H01F1/153
CPC分类号： H01F1/1535 , C22C33/003 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C45/02 , C22C2200/02 , C22C2202/02 , H01F1/14 , H01F1/153 , H01F41/0226 , H01F41/0246
摘要： Provided is a soft magnetic alloy including Fe as a main component, in which a slope of an approximate straight line, plotted between cumulative frequencies of 20 to 80% on Fe content in each grid of 80000 grids or more, each of which has 1 nm × 1 nm × 1 nm, is -0.1 to -0.4, provided that Fe content (atom%) of each grid is Y axis, and the cumulative frequencies (%) obtained in descending order of Fe content in each grid is X axis, and an amorphization ratio X is 85% or more.
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公开(公告)号：EP3364425A1
公开(公告)日：2018-08-22
申请号：EP18154087.3
申请日：2018-01-30
申请人： TDK Corporation
发明人： HARADA, Akihiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , YOSHIDOME, Kazuhiro , HASEGAWA, Akito , AMANO, Hajime , ARA, Kensuke , TOKORO, Seigo , OTSUKA, Shota
CPC分类号： H01F1/15325 , C22C38/002 , C22C38/12 , C22C38/14 , C22C38/16 , C22C45/00 , C22C45/02 , C22C2200/02 , C22C2200/04 , C22C2202/02 , H01F1/15308 , H01F1/15333
摘要： A soft magnetic alloy comprising a compositional formula of ((Fe (1-(α+β)) X1 α X2 β ) (1-(a+b+c+e)) M a B b P c Cu e ) 1-f C f , wherein X1 is one or more selected from the group consisting Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements, "M" is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W, and V, 0.030
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公开(公告)号：EP3354759A1
公开(公告)日：2018-08-01
申请号：EP18154180.6
申请日：2018-01-30
申请人： TDK Corporation
发明人： HARADA, Akihiro , MATSUMOTO, Hiroyuki , HORINO, Kenji , YOSHIDOME, Kazuhiro , HASEGAWA, Akito , AMANO, Hajime , ARA, Kensuke , TOKORO, Seigo , OTSUKA, Shota
IPC分类号： C22C33/00 , B22F1/00 , B22F9/00 , C22C38/00 , C22C45/02 , H01F1/147 , H01F1/153 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/32 , C22C38/60
摘要： A soft magnetic alloy comprising a main component having a compositional formula of (Fe (1-(α+β)) X1 α X2 β ) (1-(a+b+c)) M a B b P c , and a sub component including at least C, S and Ti, wherein X1 is one or more selected from the group consisting of Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, and rare earth elements, "M" is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W, and V, 0.020 ≤ a ≤ 0.14, 0.020 ≤ b ≤ 0.20, 0 ≤ c ≤ 0.040, α ≥ 0, β ≥ 0, and 0 ≤ α + β ≤ 0.50 are satisfied, when entire said soft magnetic alloy is 100 wt%, a content of said C is 0.001 to 0.050 wt%, a content of said S is 0.001 to 0.050 wt%, and a content of said Ti is 0.001 to 0.080 wt%, and when a value obtained by dividing the content of said C by the content of said S is C/S, then C/S satisfies 0.10 ≤ C/S ≤ 10.
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