公开(公告)号：US09767956B2

公开(公告)日：2017-09-19

申请号：US14084011

申请日：2013-11-19

申请人： Seiko Epson Corporation

发明人： Isamu Otsuka ,  Yu Maeta ,  Toshikuni Sato

IPC分类号： B32B5/16 ,  B05D7/00 ,  C23C10/30 ,  H01F41/00 ,  H01F1/147 ,  H01F1/24 ,  H01F27/255 ,  C23C10/28 ,  H01F1/33

CPC分类号： H01F41/005 ,  C23C10/28 ,  C23C10/30 ,  H01F1/14733 ,  H01F1/14766 ,  H01F1/24 ,  H01F1/33 ,  H01F27/255

摘要： A composite particle includes: a particle composed of a soft magnetic metallic material, and a coating layer composed of a soft magnetic metallic material having a different composition from that of the particle and fusion-bonded to the particle so as to cover the particle, wherein when the Vickers hardness of the particle is represented by HV1 and the Vickers hardness of the coating layer is represented by HV2, HV1 and HV2 satisfy the following relationship: 100≦HV1−HV2, and when half of the projected area circle equivalent diameter of the particle is represented by r and the average thickness of the coating layer is represented by t, r and t satisfy the following relationship: 0.05≦t/r≦1.

公开(公告)号：US09493866B2

公开(公告)日：2016-11-15

申请号：US14191946

申请日：2014-02-27

申请人： Seiko Epson Corporation

发明人： Isamu Otsuka ,  Yu Maeda ,  Toshikuni Sato

IPC分类号： C22C45/02 ,  H01F3/08 ,  B22F9/00 ,  C22C33/02 ,  H01F1/153 ,  H01F41/02 ,  B22F9/08 ,  B22F9/30

CPC分类号： C22C45/02 ,  B22F9/002 ,  B22F9/082 ,  B22F9/305 ,  C22C33/0278 ,  H01F1/15308 ,  H01F3/08 ,  H01F41/0246

摘要： An amorphous alloy powder is composed of an amorphous alloy material containing Fe, Cr, Mn, Si, B, and C as constituent components, and in the amorphous alloy material, Fe is contained as a main component, the content of Cr is 0.5 at % or more and 3 at % or less, the content of Mn is 0.02 at % or more and 3 at % or less, the content of Si is 10 at % or more and 14 at % or less, the content of B is 8 at % or more and 13 at % or less, and the content of C is 1 at % or more and 3 at % or less. By using such an amorphous alloy powder, a dust core which reduces iron loss and decreases magnetostriction can be obtained.

摘要翻译： 无定形合金粉末由含有Fe，Cr，Mn，Si，B和C作为构成成分的非晶合金材料构成，在非晶合金材料中含有Fe作为主要成分，Cr的含量为0.5 ％以上且3原子％以下，Mn的含量为0.02原子％以上且3原子％以下，Si的含量为10原子％以上且14原子％以下，B的含量为8 以上且13原子％以下，C的含量为1原子％以上且3原子％以下。 通过使用这种无定形合金粉末，可以获得减少铁损并降低磁致伸缩的粉尘芯。

公开(公告)号：US09196404B2

公开(公告)日：2015-11-24

申请号：US13852270

申请日：2013-03-28

申请人： Seiko Epson Corporation

发明人： Isamu Otsuka ,  Yu Maeda ,  Toshikuni Sato

IPC分类号： H01F1/153 ,  H01F3/08

CPC分类号： H01F1/15308 ,  H01F3/08

摘要： A soft magnetic powder containing an amorphous alloy material having an alloy composition represented by Fe100-a-b-c-dMnaSibBcCd wherein a, b, c and d each represent a proportion in terms of percent by atom, and satisfy 0.1≦a≦10, 3≦b≦15, 3≦c≦15, and 0.1≦d≦3.

摘要翻译： 一种含有Fe100-abc-dMnaSibBcCdd表示的合金组成的非晶合金材料的软磁性粉末，其中a，b，c和d分别以原子百分比表示，并且满足0.1＆nlE; a＆nlE; 10 3＆ b＆nlE; 15，3＆nlE; c＆nlE; 15和0.1＆nlE; d＆nlE; 3。

公开(公告)号：US11348712B2

公开(公告)日：2022-05-31

申请号：US16145304

申请日：2018-09-28

申请人： Seiko Epson Corporation

发明人： Toshikuni Sato ,  Atsushi Nakamura

IPC分类号： H01F1/33 ,  H01F27/24 ,  B22F1/02 ,  B22F1/00 ,  C03C8/04 ,  C03C3/066 ,  H01F3/08 ,  H01F1/24 ,  G11B5/66 ,  B22F1/05 ,  B22F1/16 ,  H01F17/04 ,  H01F17/06 ,  H01F27/28

摘要： An insulator-coated soft magnetic powder includes a plurality of particles each including a core which contains a soft magnetic material, and an insulating layer which is provided on the surface of the core and contains a glass material including Bi2O3 as a main component. The content of an alkali metal in the insulating layer is 5 mol % or less. The glass material further contains at least one of ZnO and B2O3. The content of Bi2O3 in the glass material is 40 mol % or more and 80 mol % or less.