公开(公告)号：US12046415B2

公开(公告)日：2024-07-23

申请号：US17219927

申请日：2021-04-01

申请人： Seiko Epson Corporation

发明人： Yasutaka Matsumoto ,  Sukenori Ichikawa

IPC分类号： H01F1/24 ,  B22F1/08 ,  B22F1/14 ,  B22F1/16 ,  B22F3/093 ,  H01F1/38 ,  H01F3/08 ,  H01F41/02

CPC分类号： H01F41/0246 ,  B22F1/08 ,  B22F1/14 ,  B22F1/16 ,  B22F3/093 ,  H01F1/24 ,  H01F3/08 ,  B22F2201/00 ,  B22F2202/01 ,  B22F2202/11 ,  B22F2998/10 ,  B22F2999/00 ,  H01F1/38 ,  B22F2999/00 ,  B22F1/14 ,  B22F1/08 ,  B22F2202/13 ,  B22F2202/11 ,  B22F2202/01 ,  B22F2998/10 ,  B22F1/16 ,  B22F1/14 ,  B22F3/02 ,  B22F3/10

摘要： A method for manufacturing a dust core, includes: applying energy to a surface of a soft magnetic powder coated with an insulating body containing a compound having an aluminum-oxygen bond; exposing the soft magnetic powder to an atmosphere having a dew point of −30° C. or higher and 15° C. or lower under an atmospheric pressure; and forming a molded product by pressing the soft magnetic powder at 20 MPa or more and 400 MPa or less.

公开(公告)号：US11869692B2

公开(公告)日：2024-01-09

申请号：US16009018

申请日：2018-06-14

申请人： TAIYO YUDEN CO., LTD.

发明人： Yoko Orimo ,  Xinyu Li ,  Shinsuke Takeoka

IPC分类号： H01F1/33 ,  H01F1/38 ,  H01F1/34 ,  H01F3/02 ,  H01F3/08 ,  B22F1/16 ,  B22F5/00

CPC分类号： H01F1/33 ,  B22F1/16 ,  H01F1/342 ,  H01F1/38 ,  H01F3/02 ,  H01F3/08 ,  B22F5/00 ,  B22F2207/07 ,  B22F2301/35 ,  B22F2302/256 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  B22F2999/00 ,  C22C2202/02 ,  B22F1/16 ,  B22F9/002 ,  B22F2207/07 ,  B22F2999/00 ,  B22F1/16 ,  B22F2207/07 ,  B22F9/002 ,  C22C2202/02

摘要： A magnetic material includes a soft magnetic metal grain containing Fe, and a multilayer oxide film covering the surfaces of the soft magnetic metal grain. The multilayer oxide film has a first oxide layer of crystalline nature containing Fe, and a second oxide layer of amorphous nature containing Si. In an embodiment, the silicon oxide film of amorphous nature is formed by dripping, divided into multiple sessions, a treatment solution containing TEOS (tetraethoxy silane), ethanol, and water into a mixed solution containing the soft magnetic metal grain, ethanol, and ammonia water, to mix the solutions.

公开(公告)号：US11798719B2

公开(公告)日：2023-10-24

申请号：US16296348

申请日：2019-03-08

申请人： TDK CORPORATION

发明人： Kazuhiro Yoshidome ,  Hiroyuki Matsumoto ,  Kenji Horino ,  Satoko Mori ,  Takuma Nakano ,  Seigo Tokoro ,  Shota Otsuka ,  Toru Ujiie ,  Kentaro Mori

IPC分类号： H01F1/24 ,  H01F1/38 ,  H01F1/33 ,  H01F1/26 ,  H01F3/08 ,  B22F1/16 ,  H01F27/255 ,  H01F41/02 ,  H01F1/153

CPC分类号： H01F1/24 ,  B22F1/16 ,  H01F1/26 ,  H01F1/33 ,  H01F1/38 ,  H01F3/08 ,  B22F2301/35 ,  B22F2304/10 ,  H01F1/15308 ,  H01F1/15333 ,  H01F27/255 ,  H01F41/0246

摘要： A soft magnetic metal powder having soft magnetic metal particles, wherein a surface of the soft magnetic metal particle is covered by a coating part, the coating part has a first coating part, a second coating part, and a third coating part in this order from the surface of the soft magnetic metal particle towards outside, the first coating part includes oxides of Si as a main component, the second coating part includes oxides of Fe as a main component, and the third coating part includes a compound of at least one element selected from the group consisting of P, Si, Bi, and Zn.

公开(公告)号：US5068050A

公开(公告)日：1991-11-26

申请号：US271448

申请日：1988-11-15

申请人： Koichiro Inomata ,  Susumu Hashimoto

发明人： Koichiro Inomata ,  Susumu Hashimoto

IPC分类号： C01G45/00 ,  C01B35/10 ,  G11B5/64 ,  G11B11/10 ,  G11B11/105 ,  H01F1/11 ,  H01F1/34 ,  H01F1/38 ,  H01F10/18 ,  H01F10/187 ,  H01F10/20

CPC分类号： H01F1/38 ,  G11B5/64

摘要： An amorphous oxide magnetic material is represented by a formula (1-y) [Ln.sub.1-x A.sub.x MnO.sub.3-.delta. ].multidot.y[XO] wherein x and y fall within the ranges of 0.1.ltoreq.x.ltoreq.1.0 and y.ltoreq.0.7, respectively. Ln represents at least one element selected from the group consisting of Ln and a rare earth element. A represents at least one element selected from the group consisting of Ca, Sr, Ba and Pb, X represents at least one element selected from the group consisting of B, Bi, Si, Mg, Mo, V, Zn, P and Ge, and .delta. represents oxygen deficiency and .delta..ltoreq.1.

公开(公告)号：US20190214171A1

公开(公告)日：2019-07-11

申请号：US16221977

申请日：2018-12-17

申请人： TDK CORPORATION

发明人： Kazuhiro YOSHIDOME ,  Hiroyuki MATSUMOTO ,  Kenji HORINO ,  Akito HASEGAWA ,  Hajime AMANO ,  Kensuke ARA ,  Akihiro HARADA

IPC分类号： H01F1/26 ,  H01F1/147 ,  H01F1/38

CPC分类号： H01F1/26 ,  H01F1/14708 ,  H01F1/14766 ,  H01F1/15308 ,  H01F1/15333 ,  H01F1/38 ,  H01F41/0226 ,  H01F41/0246

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.

公开(公告)号：US20030128029A1

公开(公告)日：2003-07-10

申请号：US10369762

申请日：2003-02-21

申请人： Kabushiki Kaisha Toshiba

发明人： Takao Sawa ,  Katsutoshi Nakagawa ,  Teruo Murakami ,  Tadahiko Kobayashi ,  Hisashi Takahashi ,  Masao Obama

IPC分类号： G01R033/12

CPC分类号： B42D25/369 ,  B42D25/378 ,  B42D2033/16 ,  G08B13/2408 ,  G08B13/244 ,  G08B13/2442 ,  G08B13/2445 ,  G08B13/2471 ,  H01F1/37 ,  H01F1/38 ,  H01F1/44 ,  H01F1/445 ,  Y10T428/12465

摘要： The magnetic powder for validity determining ink is composed of magnetic oxide powder having a Curie temperature between null50null C. and 150null C. and a mean powder particle diameter of 10 nullm or less.

摘要翻译： 用于有效性确定墨的磁粉由具有-50℃至150℃的居里温度和10微米或更小的平均粉末粒径的磁性氧化物粉末组成。

公开(公告)号：US06731111B2

公开(公告)日：2004-05-04

申请号：US10369762

申请日：2003-02-21

申请人： Takao Sawa ,  Katsutoshi Nakagawa ,  Teruo Murakami ,  Tadahiko Kobayashi ,  Hisashi Takahashi ,  Masao Obama

发明人： Takao Sawa ,  Katsutoshi Nakagawa ,  Teruo Murakami ,  Tadahiko Kobayashi ,  Hisashi Takahashi ,  Masao Obama

IPC分类号： G01R3300

CPC分类号： B42D25/369 ,  B42D25/378 ,  B42D2033/16 ,  G08B13/2408 ,  G08B13/244 ,  G08B13/2442 ,  G08B13/2445 ,  G08B13/2471 ,  H01F1/37 ,  H01F1/38 ,  H01F1/44 ,  H01F1/445 ,  Y10T428/12465

摘要： The magnetic powder for validity determining ink is composed of magnetic oxide powder having a Curie temperature between −50° C. and 150° C. and a mean powder particle diameter of 10 &mgr;m or less.

摘要翻译： 用于有效性确定油墨的磁性粉末由具有-50℃至150℃的居里温度和10微米或更小的平均粉末粒径的磁性氧化物粉末组成。

公开(公告)号：US4837094A

公开(公告)日：1989-06-06

申请号：US11646

申请日：1987-02-04

申请人： Toshio Kudo

发明人： Toshio Kudo

IPC分类号： C23C14/06 ,  C21D6/00 ,  C22C45/00 ,  C22C45/02 ,  C22C45/04 ,  C22F1/00 ,  C23C14/08 ,  C23C14/14 ,  H01F1/38 ,  H01F10/13 ,  H01F41/18

CPC分类号： C22C45/008 ,  H01F1/38 ,  H01F10/13 ,  H01F41/18

摘要： An oxygen-containing ferromagnetic amorphous alloy having the formulaM.sub.x G.sub.y O.sub.zwherein M is one or more transition elements of Fe, Co and Ni; or a combination of said transition element or elements and one or more elements selected from the group consisting of V, Cr, Mn, Nb, Mo, Hf, Ta, W, Pt, Sm, Gd, Tb, Dy and Ho; G is one or more elements selected from the group consisting of B, Si, Ge, As, Sb, Ti, Sn, Al and Zr; and x, y and z are the fractional atomic percentages of M, G and O and y+y+z=100 and this alloy in combination with a substrate.

摘要翻译： 具有式MxGyOz的含氧铁磁非晶合金，其中M是Fe，Co和Ni的一种或多种过渡元素; 或者所述过渡元素和选自V，Cr，Mn，Nb，Mo，Hf，Ta，W，Pt，Sm，Gd，Tb，Dy和Ho中的一种或多种元素的组合; G是选自B，Si，Ge，As，Sb，Ti，Sn，Al和Zr中的一种或多种元素; 而x，y和z分别为M，G和O的原子百分数，y + y + z = 100，合金与底物组合。

公开(公告)号：US4806265A

公开(公告)日：1989-02-21

申请号：US97317

申请日：1987-09-14

申请人： Kenji Suzuki ,  Tsuyoshi Masumoto ,  Nobuhiro Ota ,  Mika Okubo ,  Masao Mitera ,  Akira Matsumoto ,  Shuji Masuda

发明人： Kenji Suzuki ,  Tsuyoshi Masumoto ,  Nobuhiro Ota ,  Mika Okubo ,  Masao Mitera ,  Akira Matsumoto ,  Shuji Masuda

IPC分类号： C23C14/08 ,  C04B35/26 ,  H01F1/38 ,  H01F10/20

CPC分类号： H01F10/20 ,  H01F1/38

摘要： This invention provides an amorphous ferromagnetic oxide represented by the formulaA.sub.x.(MmOn).sub.y.(Fe.sub.2 O.sub.3).sub.zwherein A represents at least one of Bi.sub.2 O.sub.3, V.sub.2 O.sub.5, TeO.sub.2 and GeO.sub.2 ; M represents at least one of Mn, Fe, Co, Ni, Cu, Mg, Zn, Cd, Ca, Pb, Ba, Sr and rare earth elements; when M is not a rare earth element, m=1 and n=1; when M is a rare earth element, m=2 and n=3; O

摘要翻译： 本发明提供由式Ax（MmOn）y。（Fe2O3）z表示的无定形铁磁性氧化物，其中A表示Bi2O3，V2O5，TeO2和GeO2中的至少一种; M表示Mn，Fe，Co，Ni，Cu，Mg，Zn，Cd，Ca，Pb，Ba，Sr和稀土元素中的至少一种; 当M不是稀土元素时，m = 1且n = 1; 当M是稀土元素时，m = 2和n = 3; 如果M是Co，O

公开(公告)号：US11763969B2

公开(公告)日：2023-09-19

申请号：US16296626

申请日：2019-03-08

申请人： TDK CORPORATION

发明人： Kazuhiro Yoshidome ,  Hiroyuki Matsumoto ,  Kenji Horino ,  Satoko Mori ,  Takuma Nakano ,  Seigo Tokoro ,  Shota Otsuka ,  Toru Ujiie ,  Kentaro Mori

IPC分类号： H01F1/26 ,  H01F1/38 ,  H01F1/33 ,  H01F1/24 ,  H01F3/08 ,  B22F1/16 ,  H01F27/255 ,  H01F41/02 ,  H01F1/153

CPC分类号： H01F1/26 ,  B22F1/16 ,  H01F1/24 ,  H01F1/33 ,  H01F1/38 ,  H01F3/08 ,  B22F2301/35 ,  B22F2304/10 ,  H01F1/15308 ,  H01F1/15333 ,  H01F27/255 ,  H01F41/0246

摘要： A soft magnetic metal powder having soft magnetic metal particles including Fe, wherein a surface of the soft magnetic metal particle is covered by a coating part, the coating part has a first coating part and a second coating part in this order from the surface of the soft magnetic metal particle towards outside, the first coating part includes oxides of Fe as a main component, the second coating part includes a compound of at least one element selected from the group consisting of P, Si, Bi, and Zn, and a ratio of trivalent Fe atom among Fe atoms of oxides of Fe included in the first coating part is 50% or more.