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1. 发明授权

US5432645A Magnetic head-forming thin film 失效
标题翻译：磁头成型薄膜
公开(公告)号：US5432645A
公开(公告)日：1995-07-11
申请号：US214675
申请日：1994-03-21
申请人： Kouichi Terunuma , Masahiro Miyazaki
发明人： Kouichi Terunuma , Masahiro Miyazaki
IPC分类号： G11B5/187 , G11B5/31 , H01F10/14 , G11B5/235
CPC分类号： H01F10/147 , G11B5/1878 , G11B5/3106 , G11B5/3109
摘要： The thin film of the invention for use in a magnetic head has an atomic ratio composition of the formula:(Fe.sub.100-z Ni.sub.z).sub.100-x-y M.sub.x N.sub.ywherein M is at least one member selected from the group consisting of Mg, Ca, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, and B, 6.ltoreq.x.ltoreq.14, 6.2.ltoreq.y.ltoreq.15, 0.6.ltoreq.y/x.ltoreq.2.0, and 0.ltoreq.z.ltoreq.10, and has a relative intensity ratio of Fe (200) peak to Fe (110) peak in an X-ray diffraction spectrum of at least 1 and high Fe (100) orientation, with a film surface oriented in (200) plane. Heat treatment improves the (100) orientation. The thin film has very high heat resistance of remaining stable at 700.degree. C. or higher and excellent soft magnetic properties in that it has a high saturation magnetic flux density Bs, a low coercive force, a high magnetic permeability, and minimized magnetostriction. It is hard enough. The thin film exhibits improved soft magnetic properties immediately after its preparation which experience a limited range of variation with a change of heat treating conditions so that the control of heat treatment is easy. A magnetic head using such a thin film has improved overwrite properties, recording/reproducing sensitivity, and electromagnetic properties, and is highly reliable.
摘要翻译：用于磁头的本发明的薄膜具有下式的原子比组成：（Fe100-zNiz）100-x-yMxNy其中M是选自Mg，Ca，Ti， Zr，Hf，V，Nb，Ta，Cr，Mo，W，Mn和B，6

2. 发明授权

US5262915A Magnetic head comprising a soft magnetic thin film of FeNiZrN having enhanced (100) orientation 失效
标题翻译：磁头包括具有增强（100）取向的FeNiZrN的软磁薄膜
公开(公告)号：US5262915A
公开(公告)日：1993-11-16
申请号：US617180
申请日：1990-11-23
申请人： Kouichi Terunuma , Masahiro Miyazaki
发明人： Kouichi Terunuma , Masahiro Miyazaki
IPC分类号： G11B5/187 , G11B5/245 , G11B5/31 , G11B5/235
CPC分类号： G11B5/3109 , G11B5/1878 , G11B5/2457 , Y10S428/90 , Y10T428/115
摘要： The soft magnetic thin film of the invention has an atomic ratio composition of the formula:[(Fe.sub.1-y Ni.sub.y).sub.1-x M.sub.x ].sub.1-z Nzwherein M is at least one member selected from the group consisting of Mg, Ca, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, and B, 0.001.ltoreq.x.ltoreq.0.15, 0.ltoreq.y.ltoreq.0.1, and 0.001.ltoreq.z.ltoreq.0.15, and has a relative intensity ratio of Fe (200) peak to Fe (110) peak in an X-ray diffraction spectrum of at least 1/3 and high Fe (100) orientation. It has excellent soft magnetic properties in that it has a high saturation magnetic flux density Bs, heat resistance, a low coercive force Hc, and a high magnetic permeability .mu.. A magnetic head using such a thin film has improved overwrite properties, recording/reproducing sensitivity, and electromagnetic properties, and is highly reliable.
摘要翻译：本发明的软磁性薄膜具有下式的原子比组成：[（Fe1-yNiy）1-xMx] 1-zNz其中M为选自Mg，Ca，Ti，Zr中的至少一种，Hf，V，Nb，Ta，Cr，Mo，W，Mn和B，0.001≤x≤0.5,0≤y≤0.1，0.001≤z≤0.15 并且在X射线衍射光谱中具有至少1/3和高Fe（100）取向的Fe（200）峰与Fe（110）峰的相对强度比。具有优异的软磁特性，具有高的饱和磁通密度Bs，耐热性，低矫顽力Hc和高磁导率μ。使用这种薄膜的磁头具有改善的重写性能，记录/再现灵敏度和电磁特性，并且是高度可靠的。

3. 发明授权

US5382305A Soft magnetic thin film 失效
标题翻译：软磁薄膜
公开(公告)号：US5382305A
公开(公告)日：1995-01-17
申请号：US106563
申请日：1993-08-16
申请人： Kouichi Terunuma , Masahiro Miyazaki
发明人： Kouichi Terunuma , Masahiro Miyazaki
IPC分类号： G11B5/187 , G11B5/245 , G11B5/31 , H01F10/00
CPC分类号： G11B5/3109 , G11B5/1878 , G11B5/2457 , Y10S428/90 , Y10T428/115
摘要： The soft magnetic thin film of the invention has an atomic ratio composition of the formula:[(Fe.sub.1-y Ni.sub.y).sub.1-x M.sub.x ].sub.1-z N.sub.zwherein M is at least one member selected from the group consisting of Mg, Ca, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, and B, 0.001.ltoreq.x.ltoreq.0.15, 0.ltoreq.y.ltoreq.0.1, and 0.001.ltoreq.z.ltoreq.0.15, and has a relative intensity ratio of Fe (200) peak to Fe (110) peak in an X-ray diffraction spectrum of at least 1/3 and high Fe (100) orientation. It has excellent soft magnetic properties in that it has a high saturation magnetic flux density Bs, heat resistance, a low coercive force Hc, and a high magnetic permeability .mu.. A magnetic head using such a thin film has improved otherwise properties, recording/reproducing sensitivity, and electromagnetic properties, and is highly reliable.
摘要翻译：本发明的软磁性薄膜具有下式的原子比组成：[（Fe1-yNiy）1-xMx] 1-zNz其中M为选自Mg，Ca，Ti，Zr中的至少一种，Hf，V，Nb，Ta，Cr，Mo，W，Mn和B，0.001≤x≤0.5,0≤y≤0.1，0.001≤z≤0.15 并且在X射线衍射光谱中具有至少1/3和高Fe（100）取向的Fe（200）峰与Fe（110）峰的相对强度比。具有优异的软磁特性，具有高的饱和磁通密度Bs，耐热性，低矫顽力Hc和高磁导率μ。使用这种薄膜的磁头改善了其他性能，记录/再现灵敏度和电磁特性，并且是高度可靠的。

4. 发明授权

US5473492A Magnetic head including a reproducing head utilizing a magnetoresistance effect and having a magnetic shielding film containing nitrogen 失效
标题翻译：磁头包括利用磁阻效应的再现头，并具有含有氮的磁屏蔽膜
公开(公告)号：US5473492A
公开(公告)日：1995-12-05
申请号：US203315
申请日：1994-03-01
申请人： Kouichi Terunuma , Hiroaki Kawashima
发明人： Kouichi Terunuma , Hiroaki Kawashima
IPC分类号： G11B5/39 , G11B5/48 , G11B5/11
CPC分类号： G11B5/3967 , G11B5/488
摘要： A magnetic head includes a reproducing head comprising a leading magnetic shield film, an insulator, a magnetoresistance film, an insulator, and a trailing magnetic shield film formed on a substrate from the substrate to a trailing direction. The leading magnetic shield film is made of a soft magnetic thin film having an atomic ratio composition of the formula: T.sub.(100-x-y) M.sub.x N.sub.y wherein T is Fe, Co, Ni or a mixture thereof, M is B, Al, Si, Ti, V, Cr, Y, Zr, Nb, Mo, Ru, Hf, Ta, W or a mixture thereof, N is nitrogen, 0.1.ltoreq.x.ltoreq.25 and 0.1.ltoreq.y.ltoreq.25 or a soft magnetic thin film consisting essentially of 60 to 80 at % of Fe, 5 to 15 at % of Al, 10 to 25 at % of Si, and 0.1 to 20 at % of N. The magnetic head having such a shielded MR head is more durable and increased in productivity and yield.
摘要翻译：磁头包括一个再现头，它包括一个从衬底到拖尾方向形成在衬底上的引导磁屏蔽膜，绝缘体，磁阻膜，绝缘体和拖尾磁屏蔽膜。前导磁屏蔽膜由具有下式的原子比组成的软磁薄膜制成：T（100-xy）MxNy其中T是Fe，Co，Ni或它们的混合物，M是B，Al，Si， Ti，V，Cr，Y，Zr，Nb，Mo，Ru，Hf，Ta，W或其混合物，N为氮，0.1≤x≤25和0.1≤y≤25或基本上由Fe组成的60〜80at％的Fe，5〜15at％的Al，10〜25at％的Si和0.1〜20at％的N组成的软磁性薄膜。具有这种屏蔽MR头更耐用，生产率和产量提高。

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