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公开(公告)号：US20180218811A1
公开(公告)日：2018-08-02
申请号：US15880859
申请日：2018-01-26
Applicant: TDK CORPORATION
Inventor： Akihiro HARADA , Hiroyuki MATSUMOTO , Kenji HORINO , Kazuhiro YOSHIDOME , Akito HASEGAWA , Hajime AMANO , Kensuke ARA , Seigo TOKORO
IPC: H01F1/153 , H01F1/00 , H01F27/255
CPC classification number: H01F1/15325 , H01F1/0045 , H01F1/15333 , H01F27/255 , H01F41/0226
Abstract: A soft magnetic alloy comprising a main component having a compositional formula of ((Fe(1−(α+β))X1αX2β)(1−(a+b))MaBb)1−cCc, and a sub component including P, S and Ti, wherein X1 is selected from the group Co and Ni, X2 is selected from the group Al, Mn, Ag, Zn, Sn, As, Sb, Bi, and rare earth elements, “M” is one or more selected from the group Nb, Hf, Zr, Ta, Mo, W, and V, 0.030≤a≤0.14, 0.005≤b≤0.20, 0≤c≤0.040, α≥0, β≥0, and 0≤α+β≤0.50 are satisfied, when magnetic alloy is 100 wt %, P is 0.001 to 0.050 wt %, S is 0.001 to 0.050 wt %, and Ti is 0.001 to 0.080 wt %, and when a value obtained by dividing P by S is P/S, then P/S satisfies 0.10≤P/S≤10.
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公开(公告)号：US20180122543A1
公开(公告)日：2018-05-03
申请号：US15794578
申请日：2017-10-26
Applicant: TDK CORPORATION
Inventor： Akihiro HARADA , Hiroyuki MATSUMOTO , Kenji HORINO , Kazuhiro YOSHIDOME , Akito HASEGAWA , Hajime AMANO , Kensuke ARA , Masahito KOEDA , Seigo TOKORO
Abstract: A soft magnetic alloy including a composition having a formula of ((Fe(1−(α+β))X1αX2β)(1−(a+b+d+e))MaBbCrdCue)1−fCf. X1 is one or more elements selected from a group of Co and Ni. X2 is one or more elements selected from a group of W, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements. M is one or more elements selected from a group of Nb, Hf, Zr, Ta, Ti, Mo, and V. 0.030≤a≤0.14, 0.028≤b≤0.15, 0.005≤d≤0.020, 0
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公开(公告)号：US20210062308A1
公开(公告)日：2021-03-04
申请号：US16643981
申请日：2018-05-17
Applicant: TDK CORPORATION
Inventor： Akihiro HARADA , Hiroyuki MATSUMOTO , Kenji HORINO , Kazuhiro YOSHIDOME , Akito HASEGAWA , Hajime AMANO , Kensuke ARA , Seigo TOKORO , Masakazu HOSONO , Takuma NAKANO , Satoko MORI
Abstract: Provided is a soft magnetic alloy having a composition of a compositional formula (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e))PaCbSicCudMe. X1 is one or more selected from a group consisting of Co and Ni, X2 is one or more selected from a group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, 0, and rare earth elements, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.050≤a≤0.17, 0
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公开(公告)号：US20190279799A1
公开(公告)日：2019-09-12
申请号：US16296378
申请日：2019-03-08
Applicant: TDK CORPORATION
Inventor： Masakazu HOSONO , Kenji HORINO , Hiroyuki MATSUMOTO , Kazuhiro YOSHIDOME , Akito HASEGAWA , Hajime AMANO , Isao NAKAHATA
IPC: H01F1/24 , H01F1/153 , H01F27/255
Abstract: A soft magnetic alloy powder includes a plurality of soft magnetic alloy particles of a soft magnetic alloy represented by a composition formula (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e))MaBbPcSidCe, wherein X 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, Zr, Ta, Mo, W, and V; 0.020≤a≤0.14, 0.020
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公开(公告)号：US20190237229A1
公开(公告)日：2019-08-01
申请号：US16260715
申请日：2019-01-29
Applicant: TDK CORPORATION
Inventor： Kazuhiro YOSHIDOME , Hiroyuki MATSUMOTO , Kenji HORINO , Akito HASEGAWA , Syota GOTO , Masakazu HOSONO , Hajime AMANO , Isao NAKAHATA
CPC classification number: H01F1/14733 , B22D23/003 , B22F1/00 , B22F3/00 , C21D1/26 , C21D1/30 , C21D6/00 , C21D6/001 , C21D6/007 , C21D6/008 , C21D8/1255 , C21D9/46 , C21D9/52 , C21D2201/03 , C22C33/02 , C22C33/0214 , C22C33/0257 , C22C33/0264 , C22C33/0271 , C22C33/0278 , C22C33/0285 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/08 , C22C38/10 , C22C38/105 , C22C38/12 , C22C38/16 , C22C38/40 , C22C38/52 , C22C45/008 , C22C45/02 , C22C45/04 , C22C2200/02 , C22C2200/04 , C22C2202/02 , H01F1/147 , H01F1/14716 , H01F1/14766 , H01F1/14775 , H01F1/14791 , H01F1/15308 , H01F1/15333
Abstract: A soft magnetic alloy has a main component of Fe. The soft magnetic alloy contains P. A Fe-rich phase and a Fe-poor phase are contained. An average concentration of P in the Fe-poor phase is 1.5 times or larger than an average concentration of P in the soft magnetic alloy by number of atoms.
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Patent Agency Ranking
公开(公告)号：US20190221342A1
公开(公告)日：2019-07-18
申请号：US16244633
申请日：2019-01-10
Applicant: TDK CORPORATION
Inventor： Kazuhiro YOSHIDOME , Akihiro HARADA , Hiroyuki MATSUMOTO , Kenji HORINO , Akito HASEGAWA , Kensuke ARA , Hajime AMANO , Masakazu HOSONO
CPC classification number: H01F1/15308 , C22C38/42 , C22C45/02 , H01F1/147 , H01F1/153 , H01F1/15333 , H01F41/02 , H01F41/0226 , H01F41/0246
Abstract: A soft magnetic alloy includes a main component of (Fe(1−(α+β))X1αX2β)(1−(a+b+c+d+e))MaBbPcSidCe. 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
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公开(公告)号：US20180247744A1
公开(公告)日：2018-08-30
申请号：US15904986
申请日：2018-02-26
Applicant: TDK CORPORATION
Inventor： Kazuhiro YOSHIDOME , Hiroyuki MATSUMOTO , Kenji HORINO , Akito HASEGAWA , Yu YONEZAWA , Syota GOTO , Seigo TOKORO
CPC classification number: H01F1/1535 , C22C33/003 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C45/02 , C22C2200/02 , C22C2202/02 , H01F1/15308 , H01F41/0226 , H01F41/0246
Abstract: 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：US20220351884A1
公开(公告)日：2022-11-03
申请号：US17763865
申请日：2020-09-30
Applicant: TDK Corporation
Inventor： Hajime AMANO , Kazuhiro YOSHIDOME , Kenji HORINO , Hiroyuki MATSUMOTO
Abstract: A soft magnetic alloy contains Fe and at least one of metalloid element. An amorphous material and a nanocrystal having a grain size of 5 to 30 nm are mixed. A coefficient of determination between an atomic concentration of Fe and an atomic concentration of the at least one of metalloid element is 0.700 or more.
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公开(公告)号：US20210323064A1
公开(公告)日：2021-10-21
申请号：US17363109
申请日：2021-06-30
Applicant: TDK CORPORATION
Inventor： Kenji HORINO , Kazuhiro YOSHIDOME , Akihiro HARADA , Hiroyuki MATSUMOTO
IPC: B22F9/08
Abstract: A metal powder producing apparatus comprising a melted metal supplying part discharging a melted metal, a cylinder body provided below the melted metal supplying part, and a cooling liquid layer forming part forming a flow of a cooling liquid for cooling the melted metal discharged from the melted metal supplying part along an inner circumference face of the cylinder body, wherein the cooling liquid layer forming part has a primary pressure reservoir, and the primary pressure reservoir is provided on an outer circumference part of the cylinder body.
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公开(公告)号：US20190385770A1
公开(公告)日：2019-12-19
申请号：US16430585
申请日：2019-06-04
Applicant: TDK CORPORATION
Inventor： Kazuhiro YOSHIDOME , Hiroyuki MATSUMOTO , Kenji HORINO , Hajime AMANO , Akito HASEGAWA
Abstract: A soft magnetic alloy includes a composition of (Fe(1-(α+β))X1αX2β)(1-(a+b+c+d+e+f+g))MaTibBcPdSieSfCg. 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+b≤0.140, 0.001≤b≤0.140, 0.020
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