发明授权
- 专利标题： Soft magnetic material comprising an insulating layer containing aluminum, silicon, phosphorous and oxygen; dust magnetic core; process for producing soft magnetic material; and process for producing dust magnetic core
- 专利标题（中）： 软磁性材料包括含有铝，硅，磷和氧的绝缘层; 防尘磁芯; 软磁材料生产工艺; 以及生产粉尘磁芯的工艺
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申请号： US12160079申请日： 2006-11-22
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公开(公告)号： US08153256B2公开(公告)日： 2012-04-10
- 发明人: Toru Maeda , Naoto Igarashi , Haruhisa Toyoda , Seiji Ishitani , Hiroko Morii , Kazuyuki Hayashi
- 申请人： Toru Maeda , Naoto Igarashi , Haruhisa Toyoda , Seiji Ishitani , Hiroko Morii , Kazuyuki Hayashi
- 申请人地址： JP Osaka-Shi JP Hiroshima
- 专利权人： Sumitomo Electric Industries, Ltd.,Toda Kogyo Corp.
- 当前专利权人： Sumitomo Electric Industries, Ltd.,Toda Kogyo Corp.
- 当前专利权人地址： JP Osaka-Shi JP Hiroshima
- 代理机构： Osha Liang LLP
- 优先权： JP2006-000216 20060104
- 国际申请： PCT/JP2006/323315 WO 20061122
- 国际公布： WO2007/077689 WO 20070712
- 主分类号： B32B5/16
- IPC分类号： B32B5/16 ; H01F1/12 ; H01F1/24
摘要：
The soft magnetic material includes a plurality of composite magnetic particles having a metal magnetic particle and an insulating film surrounding the surface of the metal magnetic particle. The metal magnetic particle contains iron as the main component. The insulating film contains aluminum, silicon, phosphorus, and oxygen. The insulating film satisfies the relationship 0.4≦MAl/(MAl+MSi)≦0.9 and the relationship of 0.25≦(MAl+MSi)/MP≦1.0 in the case that molar amount of aluminum contained in the insulating film is represented by MAl, the sum of the molar amount of aluminum contained in the insulating film and the molar amount of silicon contained in the insulating film is represented by (MAl+MSi), and the molar amount of phosphorus contained in the insulating film is represented by MP.