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公开(公告)号：US07288333B2
公开(公告)日：2007-10-30
申请号：US10659119
申请日：2003-09-10
CPC分类号： C25D3/562 , C25D5/18 , C25D7/001 , G11B5/3109 , G11B5/3113 , G11B5/313 , G11B5/3163 , H01F10/16 , Y10T428/115 , Y10T428/1186 , Y10T428/1193 , Y10T428/32 , Y10T428/325
摘要： A soft magnetic film of the present invention is a plated film composed of Co and Fe, and columnar crystals extending in the film thickness direction are provided. In the present invention, columnar crystals extending in the film thickness direction are provided so that an improvement in the surface roughness of the film surface and an improvement in the corrosion resistance can be achieved. Furthermore, the saturation magnetic flux density Bs can also be improved by making the crystal fine and eliminating the need for addition of the noble metal element. That is, according to a CoFe alloy of the present invention, both the corrosion resistance and the saturation magnetic flux density Bs can be improved, and specifically, the above-mentioned saturation magnetic flux density Bs can be increased to 2.35 T or more.
摘要翻译： 本发明的软磁性膜是由Co和Fe组成的镀膜，并且设置在膜厚度方向上延伸的柱状晶体。 在本发明中，提供了沿膜厚方向延伸的柱状晶体，从而可以实现膜表面的粗糙度的提高和耐腐蚀性的提高。 此外，通过使晶体细化并且不需要添加贵金属元素，也可以提高饱和磁通密度Bs。 也就是说，根据本发明的CoFe合金，可以提高耐腐蚀性和饱和磁通密度Bs，特别是上述饱和磁通密度Bs可以提高到2.35T以上。
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2.发明授权公开(公告)号：US07396445B2
公开(公告)日：2008-07-08
申请号：US10833359
申请日：2004-07-16
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
CPC分类号： C25D3/562 , C25D5/18 , G11B5/3109 , G11B5/313 , G11B5/3153 , G11B5/40 , Y10T428/115 , Y10T428/1171 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/12931 , Y10T428/24355
摘要： A soft magnetic film is formed of a CoFe alloy having an Fe content in the range of 68 to 80 mass %, thereby having a saturation magnetic flux density of 2.0 T or more. The center lain average roughness of the film surface is 9 nm or less. The soft magnetic film can achieve a corrosive resistant magnetic head with a high recording density.
摘要翻译： 软磁性膜由Fe含量为68〜80质量％的CoFe合金形成，饱和磁通密度为2.0T以上。 膜表面的中心平均粗糙度为9nm以下。 软磁膜可以实现高记录密度的耐腐蚀磁头。
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3.发明授权公开(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
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。
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4.发明申请公开(公告)号：US20050029108A1
公开(公告)日：2005-02-10
申请号：US10833359
申请日：2004-07-16
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
CPC分类号： C25D3/562 , C25D5/18 , G11B5/3109 , G11B5/313 , G11B5/3153 , G11B5/40 , Y10T428/115 , Y10T428/1171 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/12931 , Y10T428/24355
摘要： A soft magnetic film is formed of a CoFe alloy having an Fe content in the range of 68 to 80 mass %, thereby having a saturation magnetic flux density of 2.0 T or more. The center lain average roughness of the film surface is 9 nm or less. The soft magnetic film can achieve a corrosive resistant magnetic head with a high recording density.
摘要翻译： 软磁性膜由Fe含量为68〜80质量％的CoFe合金形成，饱和磁通密度为2.0T以上。 膜表面的中心平均粗糙度为9nm以下。 软磁膜可以实现高记录密度的耐腐蚀磁头。
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5.发明申请Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefore 有权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公开(公告)号：US20050011590A1
公开(公告)日：2005-01-20
申请号：US10616169
申请日：2003-07-09
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
CPC分类号： H01F10/16 , G11B5/3109 , G11B5/3116 , G11B5/3163 , Y10T428/11 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/24355 , Y10T428/24777
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
摘要翻译： 下磁极层和/或上磁极层由Co组分比X为8〜48质量％的CoFealpha合金形成，Fe的成分比例Y为50〜90质量％，成分比例 元素α（元素α为Ni和Cr中的至少一种）的Z为2〜20质量％，并且满足式X + Y + Z = 100质量％。 因此，饱和磁通密度可以为2.0T以上，并且可以制造具有较高记录密度的薄膜磁头
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6.发明授权Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefor 失效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公开(公告)号：US06714380B2
公开(公告)日：2004-03-30
申请号：US10042085
申请日：2002-01-08
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
IPC分类号： G11B5147
CPC分类号： H01F10/16 , G11B5/3109 , G11B5/3116 , G11B5/3163 , Y10T428/11 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/24355 , Y10T428/24777
摘要： A lower magnetic pole layer and/or an upper magnetic pole layer are formed of a CoFe&agr; 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 &agr; (the element &agr; 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.
摘要翻译： 下磁极层和/或上磁极层由Co组分比X为8〜48质量％的CoFealpha合金形成，Fe的成分比例Y为50〜90质量％，成分比例 元素α（元素α为Ni和Cr中的至少一种）的Z为2〜20质量％，并且满足式X + Y + Z = 100质量％。 因此，饱和磁通密度可以为2.0T以上，并且可以制造具有较高记录密度的薄膜磁头。
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7.发明授权公开(公告)号：US06638596B1
公开(公告)日：2003-10-28
申请号：US09599498
申请日：2000-06-22
IPC分类号： G11B531
CPC分类号： G11B5/3109 , Y10T428/1157 , Y10T428/1171 , Y10T428/12944 , Y10T428/12951
摘要： A soft magnetic film of the invention is to improve a resistivity &rgr; while maintaining a coercive force Hc and a saturation magnetic flux density Ms in good states by adding an element X (X is one or more kinds of elements selected from O, C, N, and S). Further, a thin film magnetic head capable of coping with an increase in a recording density and an increase in a recording frequency can be provided by using the soft magnetic film in core layers.
摘要翻译： 本发明的软磁性膜是通过添加元素X（X是选自O，C，N中的一种或多种元素）来改善电阻率rho，同时保持良好状态下的矫顽力Hc和饱和磁通密度Ms ，和S）。 此外，通过使用芯层中的软磁性膜，可以提供能够应付记录密度增加和记录频率增加的薄膜磁头。
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8.发明授权Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefore 有权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公开(公告)号：US07179360B2
公开(公告)日：2007-02-20
申请号：US10616169
申请日：2003-07-09
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
CPC分类号： H01F10/16 , G11B5/3109 , G11B5/3116 , G11B5/3163 , Y10T428/11 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/24355 , Y10T428/24777
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
摘要翻译： 下磁极层和/或上磁极层由Co组分比X为8〜48质量％的CoFealpha合金形成，Fe的成分比例Y为50〜90质量％，成分比例 元素α（元素α为Ni和Cr中的至少一种）的Z为2〜20质量％，并且满足式X + Y + Z = 100质量％。 因此，饱和磁通密度可以为2.0T以上，并且可以制造具有较高记录密度的薄膜磁头
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9.发明授权公开(公告)号：US06801392B2
公开(公告)日：2004-10-05
申请号：US10041377
申请日：2002-01-08
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
IPC分类号： G11B5127
CPC分类号： G11B5/3109 , G11B5/3146 , G11B5/3163 , H01F10/14
摘要： A lower pole layer and/or an upper pole layer is formed by plating a NiFe alloy having a Fe composition ratio of 76% by mass to 90% by mass, or having an average crystal grain diameter of 130 Å to 175 Å and a Fe composition ratio of 70% by mass to 90% by mass. As a result, the saturation magnetic flux density can be increased to 1.9 T or more, and a thin film magnetic head excellent for a higher recording density can be manufactured.
摘要翻译： 通过将Fe组成比为76质量％〜90质量％，或平均结晶粒径为130〜175的NiFe合金进行镀覆而形成下极层和/或上极层，Fe 组成比为70质量％至90质量％。 结果，饱和磁通密度可以提高到1.9T以上，并且可以制造对于更高记录密度而优异的薄膜磁头。
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10.发明授权公开(公告)号：US06765757B2
公开(公告)日：2004-07-20
申请号：US10041354
申请日：2002-01-08
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
IPC分类号： G11B5127
CPC分类号： C25D3/562 , C25D5/18 , G11B5/3109 , G11B5/313 , G11B5/3153 , G11B5/40 , Y10T428/115 , Y10T428/1171 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/12931 , Y10T428/24355
摘要： A soft magnetic film is formed of a CoFe alloy having an Fe content in the range of 68 to 80 mass %, thereby having a saturation magnetic flux density of 2.0 T or more. The center lain average roughness of the film surface is 9 nm or less. The soft magnetic film can achieve a corrosive resistant magnetic head with a high recording density.
摘要翻译： 软磁性膜由Fe含量为68〜80质量％的CoFe合金形成，饱和磁通密度为2.0T以上。 膜表面的中心平均粗糙度为9nm以下。 软磁膜可以实现高记录密度的耐腐蚀磁头。
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