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    Soft magnetic film having saturation magnetic flux density Bs of at least 2.0 T and magnetic head including the same
    22.
    发明授权
    Soft magnetic film having saturation magnetic flux density Bs of at least 2.0 T and magnetic head including the same 有权
    具有至少2.0T的饱和磁通密度Bs和包含该磁性磁头的磁头的软磁性膜

    公开(公告)号：US07095586B2

    公开(公告)日：2006-08-22

    申请号：US10183199

    申请日：2002-06-27

    申请人： Mitsuhiro Gotoh ,  Yoshihiro Kanada

    发明人： Mitsuhiro Gotoh ,  Yoshihiro Kanada

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3903 ,  G11B5/232 ,  G11B5/235 ,  G11B5/3109 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3163 ,  G11B5/3967 ,  H01F10/14 ,  H01F10/16

    摘要： A soft magnetic film comprising an FeCo alloy containing noble metals such as Pr and Rh. This soft magnetic film has a saturation magnetic flux density Bs of at least 2.0 and high corrosion resistance. This soft magnetic film may be included in a thin-film magnetic head. A lower magnetic pole layer or an upper magnetic pole layer of the thin-film magnetic head has a composition represented by the formula FeXCoYαZ, wherein α is at least one element selected from the group consisting of Pd, Pt, Ru, and Ir, and wherein the ratio X/Y by mass percent of Fe to Co is in the range of 2 to 5, the α content Z is in the range of 0.5 to 18 mass percent, and X+Y+Z=100 mass percent.

    摘要翻译： 包含含有贵金属如Pr和Rh的FeCo合金的软磁性膜。 该软磁性膜的饱和磁通密度Bs为2.0以上，耐腐蚀性高。 该软磁性膜可以包含在薄膜磁头中。 薄膜磁头的下磁极层或上磁极层具有由下式表示的组成：由下式表示的组成： 其中α是选自Pd，Pt，Ru和Ir中的至少一种元素，并且其中Fe与Co的质量百分比X / Y的比例在2至5的范围内，α 含量Z在0.5〜18质量％的范围内，X + Y + Z = 100质量％。

    Corrosion-resistant soft magnetic film, method of producing the same, thin film magnetic head using the same and method of manufacturing the thin film magnetic head
    23.
    发明授权
    Corrosion-resistant soft magnetic film, method of producing the same, thin film magnetic head using the same and method of manufacturing the thin film magnetic head 有权
    耐腐蚀软磁性膜，其制造方法，使用其的薄膜磁头及其制造方法

    公开(公告)号：US06898054B2

    公开(公告)日：2005-05-24

    申请号：US09867825

    申请日：2001-05-30

    申请人： Mitsuo Kawasaki ,  Yoshihiro Kanada

    发明人： Mitsuo Kawasaki ,  Yoshihiro Kanada

    IPC分类号： C22C38/00 ,  G11B5/31 ,  H01F10/14 ,  H01F41/24 ,  G11B5/147

    CPC分类号： H01F10/14 ,  G11B5/3109

    摘要： A lower pole layer and/or an upper pole layer is formed by plating a soft magnetic film represented by the formula FeXNiYαZ (wherein element α is at least one of Tc, Ru, Rh, Pd, Re, Os, Ir and Pt), wherein the composition ratio X of Fe is 65% by mass to 74% by mass, the composition ratio Y of Ni 25% by mass to 34% by mass, the composition ratio Z of the element α is 1% by mass to 7% by mass, and X+Y+Z=100% by mass. Therefore, a thin film magnetic head adaptable to a higher recording density and having excellent corrosion resistance can be manufactured.

    摘要翻译： 通过电镀由下式表示的软磁性膜形成下极层和/或上电极层： （其中元素α为Tc，Ru，Rh，Pd，Re，Os，Ir和Pt中的至少一种），其中Fe的组成比X为65质量％至74质量％，Ni的组成比Y 25质量％至34质量％，元素α的组成比Z为1质量％至7质量％，X + Y + Z = 100质量％。 因此，可以制造适应于更高记录密度并具有优异耐腐蚀性的薄膜磁头。