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1. 发明公开

EP3330979A4 DUST CORE, ELECTROMAGNETIC COMPONENT AND METHOD FOR PRODUCING DUST CORE 有权
公开(公告)号：EP3330979A4
公开(公告)日：2018-08-01
申请号：EP16830369
申请日：2016-07-15
申请人： SUMITOMO ELECTRIC INDUSTRIES , SUMITOMO ELECTRIC SINTERED ALLOY LTD
发明人： SAITO TATSUYA , UENO TOMOYUKI , WATANABE ASAKO , TSURUTA HIJIRI
IPC分类号： H01F1/24 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/24 , H01F27/255 , H01F41/02
CPC分类号： B22F1/0007 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/02 , B22F3/24 , B22F2003/248 , B22F2301/35 , H01F1/24 , H01F3/08 , H01F27/255 , H01F41/02 , H01F41/0246
摘要： A dust core includes: a plurality of soft magnetic particles composed of an iron-based material; an insulating layer including a coating layer that is composed mainly of a phosphate and covers the surface of the soft magnetic particles; and insulating pieces containing a constituent material of the insulating layer, each of the insulating pieces being surrounded by at least three mutually adjacent ones of the soft magnetic particles while separated from the insulating layer.

2. 发明公开

EP2562771A4 DUST CORE AND METHOD OF MANUFACTURING THEREOF 有权
标题翻译： MASSEKERN UND VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2562771A4
公开(公告)日：2016-08-03
申请号：EP11783516
申请日：2011-05-16
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： UENO TOMOYUKI , NISHIOKA TAKAO
IPC分类号： H01F1/24 , H01F3/08 , H01F27/255 , H01F41/02
CPC分类号： H01F1/24 , H01F3/08 , H01F27/255 , H01F41/0246
摘要： There are provided a dust core in which, even if the surface of a heat-treated compact is ground, the insulation between soft magnetic particles on the ground surface can be ensured in the grinding step, and a method for producing the dust core. The method includes a preparation step of preparing a heat-treated compact 100 by compacting soft magnetic particles having an insulation coating and heating the resultant compact to a predetermined temperature; and a machining step of removing part of the heat-treated compact 100 using a working tool 2. The machining step is performed while an electric current is supplied with a conductive fluid 7L between the heat-treated compact 100 serving as an anode and a working tool 2 that machines the heat-treated compact 100 or a first counter electrode 5 that faces the working tool 2 with a distance therebetween, the working tool 2 or the first counter electrode 5 serving as a cathode. A bridge portion that connects soft magnetic particles to each other is removed through the supply of an electric current, the soft magnetic particles being adjacent to each other along a machined surface of the heat-treated compact 100.
摘要翻译：提供了一种防尘芯，其中即使将热处理压块的表面研磨，也可以在研磨步骤中确保地面上的软磁性颗粒之间的绝缘性，以及制造防尘芯的方法。该方法包括：通过压制具有绝缘涂层的软磁性颗粒并将所得到的压块加热到预定温度来制备热处理压块100的制备步骤; 以及使用加工工具2去除热处理压块100的一部分的加工步骤。在向作为阳极的热处理压块100和工作时的导电流体7L供给电流的同时进行加工步骤将热处理压块100或面向加工工具2的第一对置电极5与其间距离加工的工具2，工作工具2或第一对电极5用作阴极。通过供给电流来除去将软磁性体彼此连接的桥接部，沿着热处理压块100的加工面彼此相邻的软磁性体。

4. 发明公开

EP3214192A4 IRON-BASED SINTERED BODY 有权
公开(公告)号：EP3214192A4
公开(公告)日：2017-11-22
申请号：EP16848459
申请日：2016-08-30
申请人： SUMITOMO ELECTRIC INDUSTRIES , SUMITOMO ELECTRIC SINTERED ALLOY LTD
发明人： UENO TOMOYUKI , YAMADA KOJI , TAKIZAWA KAZUYA , ADACHI YUKI , HAYASHI TETSUYA
IPC分类号： C22C33/02 , C22C32/00 , C22C38/00
CPC分类号： C22C49/14 , C22C32/0026 , C22C33/0228 , C22C38/00 , C22C38/002 , C22C38/04 , C22C47/14
摘要： An iron-based sintered body includes a metal matrix and complex oxide particles contained in the metal matrix. When a main viewing field having an area of 176 µm × 226 µm is taken on a cross section of the iron-based sintered body and divided into a 5 × 5 array of 25 viewing fields each having an area of 35.2 µm × 45.2 µm, the complex oxide particles have an average equivalent circle diameter of from 0.3 µm to 2.5 µm inclusive, and a value obtained by dividing the total area of the 25 viewing fields by the total number of complex oxide particles present in the 25 viewing fields is from 10 µm 2 /particle to 1,000 µm 2 /particle inclusive. The number of viewing fields in which no complex oxide particle is present is 4 or less out of the 25 viewing fields.

5. 发明公开

EP2211208A4 DIFFRACTIVE OPTICAL ELEMENT AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：用于生产衍射光学元件及工艺
公开(公告)号：EP2211208A4
公开(公告)日：2014-03-19
申请号：EP08843762
申请日：2008-10-31
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： UENO TOMOYUKI , HASEGAWA MASATO
IPC分类号： G02B5/18 , B28B11/00
CPC分类号： G02B5/1814 , B28B11/003 , B28B11/005 , C04B35/14 , C04B35/443 , C04B35/486 , C04B35/547 , C04B35/553 , C04B35/645 , C04B2235/446 , C04B2235/5436 , C04B2235/6581 , C04B2235/661 , C04B2235/94 , C04B2235/945 , C04B2235/963 , C04B2235/9653 , G02B5/1847

6. 发明公开

EP3305928A4 IRON-BASED POWDER FOR POWDER METALLURGY, AND METHOD FOR MANUFACTURING IRON-BASED POWDER FOR POWDER METALLURGY 有权
公开(公告)号：EP3305928A4
公开(公告)日：2018-07-11
申请号：EP17750157
申请日：2017-02-02
申请人： SUMITOMO ELECTRIC INDUSTRIES , SUMITOMO ELECTRIC SINTERED ALLOY LTD
发明人： UENO TOMOYUKI , YAMADA KOJI , TAKIZAWA KAZUYA , ADACHI YUKI , HAYASHI TETSUYA
IPC分类号： C22C33/02 , B22F1/00 , B22F9/04 , C03C3/064 , C03C3/089 , C03C3/091 , C03C8/02 , C22C32/00 , C22C38/00
CPC分类号： B22F1/00 , B22F9/04 , B22F2009/044 , C03C3/091 , C03C8/02 , C03C2214/08 , C22C32/0026 , C22C33/02 , C22C33/0207 , C22C33/0228 , C22C33/0235 , C22C33/0257 , C22C38/00
摘要： An iron-based powder for powder metallurgy includes an iron-based powder and a composite oxide powder, and the composite oxide contains, by mass, from 15% to 30% Si, from 9% to 18% Al, from 3% to 6% B, from 0.5% to 3% Mg, from 2% to 6% Ca, from 0.01% to 1% Sr, and from 45% to 55% O.

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