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1.发明授权公开(公告)号：US07715152B2
公开(公告)日：2010-05-11
申请号：US11012990
申请日：2004-12-14
CPC分类号： G11B5/315 , G11B5/11 , G11B5/112 , G11B5/1278
摘要： Embodiments of the invention provide a perpendicular magnetic writing head with a suppressed effective track width to be written on a magnetic medium while increasing writing magnetic field gradient. In one embodiment a trailing side shield is disposed by way of a gap film to a main pole of a perpendicular writing magnetic head. A gap distance (Gt) on a trailing side of the main pole and a gap distance (Gs) on a lateral side of the main pole is defined as Gt
摘要翻译： 本发明的实施例提供一种具有抑制的有效磁道宽度的垂直写磁头，以便在增加磁场梯度的同时写入磁介质。 在一个实施例中，后侧屏蔽件通过间隙膜设置到垂直写入磁头的主极。 主极后侧的间隙距离（Gt）和主极侧面的间隙距离（Gs）定义为Gt
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2.发明授权Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same 失效用于垂直记录的磁头和使用该磁头的磁记录盘装置公开(公告)号：US06995949B2
公开(公告)日：2006-02-07
申请号：US11116301
申请日：2005-04-28
申请人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
发明人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
IPC分类号： G11B5/187
CPC分类号： G11B5/1871 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/3146
摘要： A magnetic head includes a main pole having a first portion with a length (W1) in a cross-track direction which continuously increases from a leading edge side to a trailing edge side, a second portion formed on a trailing edge side of the first portion, and a third portion formed on a trailing edge side of the second portion. A length (W2) in the cross-track direction of a boundary line between the second portion and the third portion is longer than W1, and a length (W3) in the cross-track direction of a trailing edge of a third portion is substantially equal to W2.
摘要翻译： 磁头包括主极，该主极具有在从前缘侧到后缘侧连续增大的横向方向上的长度（W 1）的第一部分，形成在第一部分的后缘侧的第二部分 部分，以及形成在第二部分的后缘侧上的第三部分。 在第二部分和第三部分之间的边界线的横向方向上的长度（W 2）比W 1长，并且第三部分的后缘的横向方向上的长度（W 3） 部分基本上等于W 2。
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3.发明授权Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same 失效用于垂直记录的磁头和使用该磁头的磁记录盘装置公开(公告)号：US06891697B2
公开(公告)日：2005-05-10
申请号：US10974807
申请日：2004-10-28
申请人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
发明人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
CPC分类号： G11B5/1871 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/3146
摘要： A magnetic head having at least a main pole having a profile on a magnetic head air bearing surface composed of a first portion having a length in a cross-track direction which continuously increases from a leading edge to a trailing edge, and a second portion located on the side of the trailing edge of the first portion. A length of the second portion in the cross-track direction at the trailing edge is substantially equal to a length in the cross-track direction at the point of contact between the first and second portions. A rate of change in the length of the second portion in the cross-track direction from the leading edge to the trailing edge is different from a rate of increase in the length of the first portion in the cross-track direction.
摘要翻译： 一种磁头，其至少具有在磁头空气轴承表面上具有轮廓的主极，该磁头由从前缘到后缘连续增加的横向方向上的长度的第一部分和位于 在第一部分的后缘侧。 在后缘处的交叉轨道方向上的第二部分的长度基本上等于第一和第二部分之间的接触点处的交叉轨道方向上的长度。 从前缘到后缘的交叉轨道方向上的第二部分的长度的变化率与跨轨道方向上的第一部分的长度的增加速率不同。
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4.发明授权公开(公告)号：US08203803B2
公开(公告)日：2012-06-19
申请号：US11254138
申请日：2005-10-18
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3136 , G11B5/315
摘要： Embodiments of the invention are directed to narrowing a read/write gap of a perpendicular magnetic head by applying a wrap around shield, data erasing from return pole edges by returning recording field, and reducing TPR of a magnetic material. In one embodiment, the wrap around shields are formed by partitioning and making Gd, which is the height of the shield at the main pole side in the sensor height direction, smaller than the height of the shield connected to the return pole in the sensor height direction.
摘要翻译： 本发明的实施例涉及通过施加环绕屏蔽来缩小垂直磁头的读/写间隙，通过返回记录场从返回磁极边缘擦除数据，并降低磁性材料的TPR。 在一个实施例中，绕环屏蔽是通过分隔并形成的，Gd是传感器高度方向上的主极侧的屏蔽的高度，小于传感器高度处连接到返回极的屏蔽的高度 方向。
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5.发明申请公开(公告)号：US20060082924A1
公开(公告)日：2006-04-20
申请号：US11254138
申请日：2005-10-18
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3136 , G11B5/315
摘要： Embodiments of the invention are directed to narrowing a read/write gap of a perpendicular magnetic head by applying a wrap around shield, data erasing from return pole edges by returning recording field, and reducing TPR of a magnetic material. In one embodiment, the wrap around shields are formed by partitioning and making Gd, which is the height of the shield at the main pole side in the sensor height direction, smaller than the height of the shield connected to the return pole in the sensor height direction.
摘要翻译： 本发明的实施例涉及通过施加环绕屏蔽来缩小垂直磁头的读/写间隙，通过返回记录场从返回磁极边缘擦除数据，并降低磁性材料的TPR。 在一个实施例中，绕环屏蔽是通过分隔并形成的，Gd是传感器高度方向上的主极侧的屏蔽的高度，小于传感器高度处连接到返回极的屏蔽的高度 方向。
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6.发明申请Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same 失效用于垂直记录的磁头和使用该磁头的磁记录盘装置公开(公告)号：US20050185335A1
公开(公告)日：2005-08-25
申请号：US11116301
申请日：2005-04-28
申请人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
发明人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
CPC分类号： G11B5/1871 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/3146
摘要： A magnetic head includes a main pole having a first portion with a length (W1) in a cross-track direction which continuously increases from a leading edge side to a trailing edge side, a second portion formed on a trailing edge side of the first portion, and a third portion formed on a trailing edge side of the second portion. A length (W2) in the cross-track direction of a boundary line between the second portion and the third portion is longer than W1, and a length (W3) in the cross-track direction of a trailing edge of a third portion is substantially equal to W2.
摘要翻译： 磁头包括主极，该主极具有在从前缘侧到后缘侧连续增大的横向方向上的长度（W 1）的第一部分，形成在第一部分的后缘侧的第二部分 部分，以及形成在第二部分的后缘侧上的第三部分。 在第二部分和第三部分之间的边界线的横向方向上的长度（W 2）比W 1长，并且第三部分的后缘的横向方向上的长度（W 3） 部分基本上等于W 2。
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7.发明申请公开(公告)号：US20050141137A1
公开(公告)日：2005-06-30
申请号：US11012990
申请日：2004-12-14
CPC分类号： G11B5/315 , G11B5/11 , G11B5/112 , G11B5/1278
摘要： Embodiments of the invention provide a perpendicular magnetic writing head with a suppressed effective track width to be written on a magnetic medium while increasing writing magnetic field gradient. In one embodiment a trailing side shield is disposed by way of a gap film to a main pole of a perpendicular writing magnetic head. A gap distance (Gt) on a trailing side of the main pole and a gap distance (Gs) on a lateral side of the main pole is defined as Gt
摘要翻译： 本发明的实施例提供一种具有抑制的有效磁道宽度的垂直写磁头，以便在增加磁场梯度的同时写入磁介质。 在一个实施例中，后侧屏蔽件通过间隙膜设置到垂直写入磁头的主极。 主极后侧的间隙距离（Gt）和主极侧面的间隙距离（Gs）定义为Gt
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8.发明申请公开(公告)号：US20050057853A1
公开(公告)日：2005-03-17
申请号：US10974807
申请日：2004-10-28
申请人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
发明人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
CPC分类号： G11B5/1871 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/3146
摘要： A magnetic head having at least a main pole having a profile on a magnetic head air bearing surface composed of a first portion having a length in a cross-track direction which continuously increases from a leading edge to a trailing edge, and a second portion located on the side of the trailing edge of the first portion. A length of the second portion in the cross-track direction at the trailing edge is substantially equal to a length in the cross-track direction at the point of contact between the first and second portions. A rate of change in the length of the second portion in the cross-track direction from the leading edge to the trailing edge is different from a rate of increase in the length of the first portion in the cross-track direction.
摘要翻译： 一种磁头，其至少具有在磁头空气轴承表面上具有轮廓的主极，该磁头由从前缘到后缘连续增加的横向方向上的长度的第一部分和位于 在第一部分的后缘侧。 在后缘处的交叉轨道方向上的第二部分的长度基本上等于第一和第二部分之间的接触点处的交叉轨道方向上的长度。 从前缘到后缘的交叉轨道方向上的第二部分的长度的变化率与跨轨道方向上的第一部分的长度的增加速率不同。
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9.发明授权Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same 失效用于垂直记录的磁头和使用该磁头的磁记录盘装置公开(公告)号：US06813116B2
公开(公告)日：2004-11-02
申请号：US10314156
申请日：2002-12-09
申请人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
发明人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
IPC分类号： G11B5187
CPC分类号： G11B5/1871 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/3146
摘要： A single-pole type magnetic head for perpendicular recording which reduces the amount of side writing even in the presence of a yaw angle and prevents the effective track width from decreasing, and a magnetic recording disk apparatus using the same. A main pole is composed of at least two portions where the width of the first portion continuously increases from the upstream side to the downstream side in the medium moving direction and the width of the second portion is the same as the width of the first portion's downstream edge in the medium moving direction and is constant from the upstream side to the downstream side in the medium moving direction. This prevents the recording magnetic field strength from decreasing at the track edge and increases the effective track width while suppressing side writing, thereby realizing a magnetic recording disk apparatus with a high track density.
摘要翻译： 一种用于垂直记录的单极型磁头，即使在存在偏航角的情况下也减少了侧面写入量，并且防止了有效轨道宽度的减小，以及使用该磁头的磁记录盘装置。 主极由至少两个部分组成，其中第一部分的宽度在介质移动方向上从上游侧到下游侧连续增加，第二部分的宽度与第一部分的下游的宽度相同 在介质移动方向上边缘并且在介质移动方向上从上游侧到下游侧是恒定的。 这防止记录磁场强度在轨道边缘处减小，并且在抑制侧面写入的同时增加有效轨道宽度，从而实现具有高轨道密度的磁记录盘装置。
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公开(公告)号：US07639452B2
公开(公告)日：2009-12-29
申请号：US11370504
申请日：2006-03-07
申请人： Masafumi Mochizuki , Isao Nunokawa
发明人： Masafumi Mochizuki , Isao Nunokawa
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T29/49032
摘要： Embodiments of the invention provide an easy-to-fabricate magnetic head which can generate a high magnetic field without eliminating adjacent tracks even if a skew angle is created. In one embodiment, a structure which comprises a pole tip of main pole exposed on the air bearing surface, a part which is recessed from the air bearing surface and having a tapered face at leading side against the air bearing surface, and a magnetic material connected thereto is adopted for the main pole.
摘要翻译： 本发明的实施例提供了一种易于制造的磁头，即使产生偏斜角，也可以产生高磁场而不消除相邻轨迹。 在一个实施例中，包括暴露在空气轴承表面上的主极极极端部的结构，从空气轴承表面凹陷并且在前侧抵靠空气轴承表面具有锥形面的部分，以及连接有磁性材料的磁性材料 主杆采用。
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