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    Single pole type recording head including tapered edges
    1.
    发明授权
    Single pole type recording head including tapered edges 失效
    单极型记录头包括锥形边缘

    公开(公告)号：US06710973B2

    公开(公告)日：2004-03-23

    申请号：US09920648

    申请日：2001-08-03

    申请人： Tomohiro Okada ,  Yoshiaki Kawato ,  Yasutaka Nishida ,  Yasuo Wakaki ,  Masafumi Mochizuki ,  Hisashi Takano

    发明人： Tomohiro Okada ,  Yoshiaki Kawato ,  Yasutaka Nishida ,  Yasuo Wakaki ,  Masafumi Mochizuki ,  Hisashi Takano

    IPC分类号： G11B5127

    CPC分类号： G11B5/1278 ,  G11B5/012 ,  Y10S977/934 ,  Y10S977/935

    摘要： A magnetic head for perpendicular recording without writing from the lateral sides of a main pole and without erasing data on adjacent tracks. A magnetic disk storage apparatus using the magnetic head. The lateral side of the main pole of a magnetic head for perpendicular recording may have an inverted tapered shape obtained by forming a groove as a track portion to an inorganic insulating layer and then forming a magnetic layer and then flattening the upper surface. A leading edge, a trailing edge, or both lateral edges of the magnetic head may be tapered. The taper may be either smooth and linear or curved in profile.

    摘要翻译： 用于垂直记录的磁头，无需从主极的侧面进行写入，而不会在相邻轨道上擦除数据。 一种使用该磁头的磁盘存储装置。 用于垂直记录的磁头的主极的侧面可以具有通过在无机绝缘层上形成作为轨道部分的槽然后形成磁性层然后使上表面变平而获得的倒锥形。 磁头的前缘，后缘或两个侧边缘可以是锥形的。 锥形可以是平滑的，线性的或弯曲的。

    Single pole type recording head with tapered edges
    2.
    发明申请
    Single pole type recording head with tapered edges 有权
    具有锥形边缘的单极型记录头

    公开(公告)号：US20060103978A1

    公开(公告)日：2006-05-18

    申请号：US11257083

    申请日：2005-10-25

    申请人： Hisashi Takano ,  Yasutaka Nishida ,  Tomohiro Okada ,  Masafumi Mochizuki

    发明人： Hisashi Takano ,  Yasutaka Nishida ,  Tomohiro Okada ,  Masafumi Mochizuki

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/012 ,  Y10S977/934 ,  Y10S977/935

    摘要： A magnetic head for perpendicular recording without writing from the lateral sides of a main pole and without erasing data on adjacent tracks. A magnetic disk storage apparatus using the magnetic head. The lateral side of the main pole of a magnetic head for perpendicular recording may have an inverted tapered shape obtained by forming a groove as a track portion to an inorganic insulating layer and then forming a magnetic layer and then flattening the upper surface. A leading edge, a trailing edge, or both lateral edges of the magnetic head may be tapered. The taper may be either smooth and linear or curved in profile.

    摘要翻译： 用于垂直记录的磁头，无需从主极的侧面进行写入，而不会在相邻轨道上擦除数据。 一种使用该磁头的磁盘存储装置。 用于垂直记录的磁头的主极的侧面可以具有通过在无机绝缘层上形成作为轨道部分的槽然后形成磁性层然后使上表面变平而获得的倒锥形。 磁头的前缘，后缘或两个侧边缘可以是锥形的。 锥形可以是平滑的，线性的或弯曲的。

    Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same
    5.
    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。

    Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same
    7.
    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

    IPC分类号： G11B5/31 ,  G11B5/02 ,  G11B5/127 ,  G11B5/187

    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。

    Single pole type recording head with tapered edges
    8.
    发明授权
    Single pole type recording head with tapered edges 有权
    具有锥形边缘的单极型记录头

    公开(公告)号：US07006326B2

    公开(公告)日：2006-02-28

    申请号：US10768104

    申请日：2004-02-02

    申请人： Tomohiro Okada ,  Yasutaka Nishida ,  Masafumi Michizuki ,  Hisashi Takano

    发明人： Tomohiro Okada ,  Yasutaka Nishida ,  Masafumi Michizuki ,  Hisashi Takano

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/012 ,  Y10S977/934 ,  Y10S977/935

    摘要： A magnetic head for perpendicular recording without writing from the lateral sides of a mains pole and without erasing data on adjacent tracks. A magnetic disk storage apparatus using the magnetic head. The lateral side of the main pole of a magnetic head for perpendicular recording may have an inverted tapered shape obtained by forming a groove as a track portion to an inorganic insulating layer and then forming a magnetic layer and then flattening the upper surface. A leading edge, a trailing edge, or both lateral edges of the magnetic head may be tapered. The taper may be either smooth and linear or curved in profile.

    摘要翻译： 用于垂直记录的磁头，无需从电源极的侧面写入，而不会在相邻轨道上擦除数据。 一种使用该磁头的磁盘存储装置。 用于垂直记录的磁头的主极的侧面可以具有通过在无机绝缘层上形成作为轨道部分的槽然后形成磁性层然后使上表面变平而获得的倒锥形。 磁头的前缘，后缘或两个侧边缘可以是锥形的。 锥形可以是平滑的，线性的或弯曲的。

    Single pole type recording head with trailing side tapered edges
    9.
    发明授权
    Single pole type recording head with trailing side tapered edges 有权
    具有后缘锥形边缘的单极型记录头

    公开(公告)号：US07133252B2

    公开(公告)日：2006-11-07

    申请号：US11257083

    申请日：2005-10-25

    申请人： Hisashi Takano ,  Yasutaka Nishida ,  Tomohiro Okada ,  Masafumi Michizuki

    发明人： Hisashi Takano ,  Yasutaka Nishida ,  Tomohiro Okada ,  Masafumi Michizuki

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/012 ,  Y10S977/934 ,  Y10S977/935

    摘要： A magnetic head for perpendicular recording without writing from the lateral sides of a main pole and without erasing data on adjacent tracks. A magnetic disk storage apparatus using the magnetic head. The lateral side of the main pole of a magnetic head for perpendicular recording may have an inverted tapered shape obtained by forming a groove as a track portion to an inorganic insulating layer and then forming a magnetic layer and then flattening the upper surface. A leading edge, a trailing edge, or both lateral edges of the magnetic head may be tapered. The taper may be either smooth and linear or curved in profile.

    摘要翻译： 用于垂直记录的磁头，无需从主极的侧面进行写入，而不会在相邻轨道上擦除数据。 一种使用该磁头的磁盘存储装置。 用于垂直记录的磁头的主极的侧面可以具有通过在无机绝缘层上形成作为轨道部分的槽然后形成磁性层然后使上表面变平而获得的倒锥形。 磁头的前缘，后缘或两个侧边缘可以是锥形的。 锥形可以是平滑的，线性的或弯曲的。