发明授权
- 专利标题： Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefore
- 专利标题（中）： 具有提高的饱和磁通密度的软磁性膜，使用其的磁头及其制造方法
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申请号： US10616169申请日： 2003-07-09
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公开(公告)号： US07179360B2公开(公告)日： 2007-02-20
- 发明人: Mitsuo Kawasaki , Yoshihiro Kanada
- 申请人： Mitsuo Kawasaki , Yoshihiro Kanada
- 申请人地址： JP Tokyo
- 专利权人： Alps Electric Co., Ltd.
- 当前专利权人： Alps Electric Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Brinks Hofer Gilson & Lione
- 优先权： JP2001-005906 20010115
- 主分类号： C25D5/18
- IPC分类号： C25D5/18 ; C25D3/56
摘要：
A lower magnetic pole layer and/or an upper magnetic pole layer are formed of a CoFeα alloy in which the component ratio X of Co is 8 to 48 mass %, the component ratio Y of Fe is 50 to 90 mass %, the component ratio Z of the element α (the element α is at least one of Ni and Cr) is 2 to 20 mass %, and the equation X+Y+Z=100 mass % is satisfied. Consequently, the saturated magnetic flux density can be 2.0 T or more, and a thin-film magnetic head have a higher recording density can be manufactured