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1.发明授权公开(公告)号：US06317301B2
公开(公告)日：2001-11-13
申请号：US09116526
申请日：1998-07-16
申请人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
发明人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/3903 , G11B5/3967 , G11B5/40 , G11B5/4886 , G11B19/04 , G11B2005/3996
摘要： A magnetoresistive effect type reproducing head is formed by stacking a lower magnetic shield made of magnetic material, a lower inter-layer insulation film, a magnetoresistive effect type element for detecting a magnetic field by using a magnetoresistive effect, an upper inter-layer insulation film, and an upper magnetic shield made of magnetic material, on a substrate in this order, wherein the resistivity of at least one of the lower and upper magnetic shields is more than 200 &mgr;&OHgr;·cm.
摘要翻译： 磁阻效应型再现头通过堆叠由磁性材料制成的下磁屏蔽，下层绝缘膜，用于通过使用磁阻效应来检测磁场的磁阻效应型元件，上层绝缘膜 以及由磁性材料制成的上磁屏蔽，其中所述下磁屏蔽和上磁屏蔽中的至少一个的电阻率大于200μOMEGA·cm。
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2.发明授权公开(公告)号：US06337784B2
公开(公告)日：2002-01-08
申请号：US09747935
申请日：2000-12-27
申请人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
发明人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/3903 , G11B5/3967 , G11B5/40 , G11B5/4886 , G11B19/04 , G11B2005/3996
摘要： A magnetoresistive effect type reproducing head is formed by stacking a lower magnetic shield made of magnetic material, a lower inter-layer insulation film, a magnetoresistive effect type element for detecting magnetic field by using a magnetoresistive effect, an upper inter-layer insulation film, and an upper magnetic shield made of magnetic material, on a substrate in this order, wherein a resistivity of at least one of the lower and upper magnetic shields is more than 200 &mgr;&OHgr;·cm.
摘要翻译： 磁阻效应型再现头通过堆叠由磁性材料制成的下磁屏蔽，下层绝缘膜，通过使用磁阻效应来检测磁场的磁阻效应型元件，上层绝缘膜， 以及由磁性材料制成的上磁屏蔽，其中，所述下磁屏蔽和上磁屏蔽中的至少一个的电阻率大于200μOMEGA·cm。
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公开(公告)号：US06563677B2
公开(公告)日：2003-05-13
申请号：US10038615
申请日：2002-01-08
申请人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
发明人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/3903 , G11B5/3967 , G11B5/40 , G11B5/4886 , G11B19/04 , G11B2005/3996
摘要： A magnetoresistive effect type reproducing head includes a lower magnetic shield made of magnetic material, an upper magnetic shield made of magnetic material, a magnetoresistive effect type element formed between the lower magnetic shield layer and the upper magnetic shield layer, a lower inter-layer insulating film formed between the magnetoresistive effect type element and the lower magnetic shield, and an upper inter-layer insulation film formed between the magnetoresistive effect type element and the upper magnetic shield. At least one of the lower and upper magnetic shields includes a first magnetic layer made of a first material having first electric resistivity and a second magnetic layer made of a second material having second electric resistivity higher than the first electric resistivity.
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公开(公告)号：US06385015B2
公开(公告)日：2002-05-07
申请号：US09853609
申请日：2001-05-14
申请人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
发明人： Shun-ichi Narumi , Hiroshi Fukui , Katsumi Hoshino , Katsuo Watanabe , Kazue Kudo , Moriaki Fuyama
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/3903 , G11B5/3967 , G11B5/40 , G11B5/4886 , G11B19/04 , G11B2005/3996
摘要： A magnetoresistive effect type reproducing head is formed by stacking a lower magnetic shield made of magnetic material, a lower inter-layer insulation film, a magnetoresistive effect type element for detecting magnetic field by using a magnetoresistive effect, an upper inter-layer insulation film, and an upper magnetic shield made of magnetic material, on a substrate in this order, wherein a resistivity of at least one of the lower and upper magnetic shields is more than 200 &mgr;&OHgr;·cm.
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5.发明授权公开(公告)号：US06510025B2
公开(公告)日：2003-01-21
申请号：US09964814
申请日：2001-09-28
IPC分类号： G11B5147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3109 , G11B5/3113 , G11B5/3116 , G11B5/3156 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： An inductive thin-film magnetic head with small fluctuations of the reproduction output and noises for reproduction is disclosed. The forward end of each of a lower magnetic core and an upper magnetic core has the same width as the track. The rear end of each of the lower magnetic core and the upper magnetic core, on the other hand, is wider than the forward end thereof in the direction transverse of the track. Also, the lower magnetic core is formed of at least two magnetic layers with a non-magnetic layer interposed therebetween.
摘要翻译： 公开了一种具有小的再现输出波动和用于再现的噪声的感应薄膜磁头。 下磁芯和上磁芯各自的前端具有与轨道相同的宽度。 另一方面，下磁芯和上磁芯中的每一个的后端比其轨道横向方向的前端宽。 此外，下磁芯由至少两个介于其间的非磁性层的磁性层形成。
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6.发明授权公开(公告)号：US06490129B1
公开(公告)日：2002-12-03
申请号：US09663100
申请日：2000-09-15
IPC分类号： G11B5147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3109 , G11B5/3113 , G11B5/3116 , G11B5/3156 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： An inductive thin-film magnetic head with small fluctuations of the reproduction output and noises for reproduction is disclosed. The forward end of each of a lower magnetic core and an upper magnetic core has the same width as the track. The rear end of each of the lower magnetic core and the upper magnetic core, on the other hand, is wider than the forward end thereof in the direction transverse of the track. Also, the lower magnetic core is formed of at least two magnetic layers with a non-magnetic layer interposed therebetween.
摘要翻译： 公开了一种具有小的再现输出波动和用于再现的噪声的感应薄膜磁头。 下磁芯和上磁芯各自的前端具有与轨道相同的宽度。 另一方面，下磁芯和上磁芯中的每一个的后端比其轨道横向方向的前端宽。 此外，下磁芯由至少两个介于其间的非磁性层的磁性层形成。
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公开(公告)号：US06278579B1
公开(公告)日：2001-08-21
申请号：US09345651
申请日：1999-06-30
IPC分类号： G11B5147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3109 , G11B5/3113 , G11B5/3116 , G11B5/3156 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： An inductive thin-film magnetic head with small flucuations of the reproduction output and noises for reproduction is disclosed. The forward end of each of a lower an upper magnetic and an upper magnetic core has the same width as the track. The rear end of each of the lower magnetic core and the upper magnetic core, on the other hand, is wider than the forward end thereof in the direction of the track. Also, the lower magnetic core is formed of at least two magnetic layers with a non-magnetic layer interposed therebetween.
摘要翻译： 公开了一种具有小的再现输出和再现噪声的感应薄膜磁头。 每个下磁体和上磁芯的前端具有与轨道相同的宽度。 另一方面，下磁芯和上磁芯各自的后端比轨道方向的前端宽。 此外，下磁芯由至少两个介于其间的非磁性层的磁性层形成。
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8.发明授权公开(公告)号：US07310203B2
公开(公告)日：2007-12-18
申请号：US10237860
申请日：2002-09-10
申请人： Nobuo Yoshida , Ichiro Oodake , Moriaki Fuyama , Kazue Kudo , Kimitoshi Etoh , Shigekazu Ohtomo , Hiroshi Fukui
发明人： Nobuo Yoshida , Ichiro Oodake , Moriaki Fuyama , Kazue Kudo , Kimitoshi Etoh , Shigekazu Ohtomo , Hiroshi Fukui
IPC分类号： G11B5/47
CPC分类号： G11B5/3967 , G11B5/3116 , G11B5/313 , G11B5/3163 , Y10T29/49046
摘要： There is provided a thin film magnetic head, with letting a distance of a portion, where a width of a track portion in an upper magnetic pole changes, from a flying plane from a medium be Ly, and letting a distance of a portion, where a distance between right and left of a surface portion in a lower magnetic pole in a track width direction is wider than the width of the upper magnetic pole in the track width direction, from the flying plane from a medium be Tp, by creating a thin film magnetic head that is equipped with a recording head that has a relation of Tp≦Ly, it becomes possible to reduce a needless leakage magnetic field in the track width direction with securing magnetic field strength.
摘要翻译： 提供了一种薄膜磁头，其中使上部磁极中的轨道部分的宽度从介质的飞行平面改变的部分的距离为Ly，并且使一部分的距离在其中 在轨道宽度方向上的下磁极中的表面部分的左右之间的距离比通过轨道宽度方向上的上磁极的宽度，从介质的飞行平面变为Tp，通过产生薄的 配备有具有Tp <= Ly关系的记录头的胶片磁头，可以确保磁场强度而减小轨道宽度方向上不必要的泄漏磁场。
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9.发明授权Apparatus and thin film magnetic head with magnetic membrane layers of different resistivity 失效具有不同电阻率的磁膜层的设备和薄膜磁头
公开(公告)号：US06034847A
公开(公告)日：2000-03-07
申请号：US992089
申请日：1997-12-17
申请人： Matahiro Komuro , Tomohiro Okada , Masaaki Sano , Moriaki Fuyama , Hiroshi Fukui , Katsumi Hoshino , Takashi Kawabe , Yohji Maruyama , Atsushi Nakamura , Miki Hara , Noboru Shimizu , Noboru Yoshida
发明人： Matahiro Komuro , Tomohiro Okada , Masaaki Sano , Moriaki Fuyama , Hiroshi Fukui , Katsumi Hoshino , Takashi Kawabe , Yohji Maruyama , Atsushi Nakamura , Miki Hara , Noboru Shimizu , Noboru Yoshida
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/312 , G11B5/3967 , G11B5/6005 , G11B2005/3996
摘要： In order to prevent degradation of the recording performance during radio frequency recording, and to provide a thin film magnetic head and a recording reproducing sectional pattern magnetic head which has a magnetic pole width less than 2 .mu.m and an ultra high density magnetic storage apparatus of 10 Gb/ in.sup.2 grade, a recording head is provided in which a lower part magnetic film serves as a shielding film of a reproducing selection, a non magnetic gap film is formed during formation of the upper part magnetic film and the lower part magnetic film, one part of the lower part magnetic film or the upper part magnetic film has a higher resistivity of more than 80 .mu..OMEGA.cm than other parts, the upper part magnetic film is formed by flame galvanizing, and a gap section of the lower part magnetic film or the upper part magnetic film has a convex shape.
摘要翻译： 为了防止在射频记录期间的记录性能的劣化，并且提供具有小于2μm的磁极宽度的薄膜磁头和记录再现部分图形磁头和超高密度磁存储装置 10Gb / in2级，提供了一种记录头，其中下部磁性膜用作再现选择的屏蔽膜，在形成上部磁性膜和下部磁性膜期间形成非磁隙膜， 下部磁性膜或上部磁性膜的一部分比其他部分具有高于80μm欧米伽cm的电阻率，上部磁性膜通过火焰镀锌形成，下部磁性膜的间隙部分 或上部磁性膜具有凸形状。
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公开(公告)号：US06385009B2
公开(公告)日：2002-05-07
申请号：US09899215
申请日：2001-07-06
申请人： Masaaki Sano , Yoshiaki Kita , Shun-ichi Narumi , Takashi Kawabe , Moriaki Fuyama , Hisashi Takano , Hisano Yamamoto , Kenzo Masuda
发明人： Masaaki Sano , Yoshiaki Kita , Shun-ichi Narumi , Takashi Kawabe , Moriaki Fuyama , Hisashi Takano , Hisano Yamamoto , Kenzo Masuda
IPC分类号： G11B531
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/3163 , G11B5/3967 , G11B2005/3996 , H01F41/26
摘要： A thin film magnetic head having a first magnetic core, a second magnetic core formed on the first magnetic core, a coil disposed between the first magnetic core and second magnetic core, and a non-magnetic insulator body for separating the first magnetic core, second magnetic core and coil with respect to each other. At least one of the first magnetic core and the second magnetic core includes an electroplated thin film with an average crystal grain size smaller than 500 Å and the electroplated thin film is made of Ni—Fe alloy of which Ni is 38 to 60 wt % and Fe is 40 to 62 wt %.
摘要翻译： 一种薄膜磁头，具有第一磁芯，形成在第一磁芯上的第二磁芯，设置在第一磁芯和第二磁芯之间的线圈和用于分离第一磁芯的非磁性绝缘体，第二磁芯 磁芯和线圈相对于彼此。 第一磁芯和第二磁芯中的至少一个包括平均晶粒尺寸小于500的电镀薄膜，电镀薄膜由Ni为38〜60重量％的Ni-Fe合金构成， Fe为40〜62重量％。
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