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    Perpendicular magnetic recording head with improved write field gradient
    1.
    发明授权
    Perpendicular magnetic recording head with improved write field gradient 失效
    具有改善的写场梯度的垂直磁记录头

    公开(公告)号：US06813115B2

    公开(公告)日：2004-11-02

    申请号：US10235356

    申请日：2002-09-05

    申请人： Petrus A. Van der Heijden ,  Sharat Batra ,  Gregory Parker ,  Jonathan D. Hannay

    发明人： Petrus A. Van der Heijden ,  Sharat Batra ,  Gregory Parker ,  Jonathan D. Hannay

    IPC分类号： G11B5127

    CPC分类号： G11B5/1278 ,  G11B5/187 ,  G11B5/3153 ,  G11B2005/0029

    摘要： A single pole magnetic recording head is provided according to the present invention for perpendicular magnetic recording on a recording medium. The magnetic recording head includes a main magnetic pole and a coil magnetically coupled to the main pole for magnetizing the main pole in a first magnetization direction. The magnetic recording head further includes a layer of ferromagnetic material anti-ferromagnetically coupled to the main pole such that magnetization of the ferromagnetic layer is in a second magnetization direction substantially anti-parallel to the first magnetization direction of the main pole.

    摘要翻译： 根据本发明提供了一种用于垂直磁记录在记录介质上的单极磁记录头。 磁记录头包括主磁极和磁耦合到主极的线圈，用于在第一磁化方向上磁化主极。 磁记录头还包括铁磁材料层，其与铁磁磁性地耦合到主极，使得铁磁层的磁化强度基本上与主极的第一磁化方向反平行。

    Single pole magnetic recording head for perpendicular magnetic recording
    2.
    发明授权
    Single pole magnetic recording head for perpendicular magnetic recording 有权
    用于垂直磁记录的单极磁记录头

    公开(公告)号：US06728065B2

    公开(公告)日：2004-04-27

    申请号：US10098663

    申请日：2002-03-15

    申请人： Sharat Batra ,  Gregory Parker ,  Petrus Antonius Van der Heijden

    发明人： Sharat Batra ,  Gregory Parker ,  Petrus Antonius Van der Heijden

    IPC分类号： G11B531

    CPC分类号： G11B5/1278 ,  G11B2005/0029

    摘要： A single pole magnetic recording head is provided according to the present invention for perpendicular magnetic recording on a recording medium. The magnetic recording head includes a main magnetic pole having a first end positionable adjacent the recording medium and a second end spaced from the first end. A coil is magnetically coupled to the main magnetic pole for producing a write flux. The magnetic recording head further includes a magnetic return pole forming first and second return paths for the magnetic flux. The magnetic return pole includes first and second return poles disposed on opposite sides of, and spaced from, the main magnetic pole, and a magnetic via connecting the first and second poles and extending over the main magnetic pole forming a back shield. The main magnetic pole is isolated from the magnetic return pole by a control gap of non-magnetic material between the second end of the main magnetic pole and the magnetic via to effectively isolate the main magnetic pole from the magnetic return pole.

    摘要翻译： 根据本发明提供了一种用于垂直磁记录在记录介质上的单极磁记录头。 磁记录头包括主磁极，其具有可邻近记录介质定位的第一端和与第一端间隔开的第二端。 线圈磁耦合到主磁极以产生写通量。 磁记录头还包括形成用于磁通量的第一和第二返回路径的磁返回极。 磁返回极包括设置在主磁极的相对侧并与主磁极隔开的第一和第二返回极，以及连接第一和第二极并在主磁极上延伸形成背屏蔽的磁通孔。 主磁极通过主磁极的第二端和磁通孔之间的非磁性材料的控制间隙与磁返回极隔离，以有效地将主磁极与磁返回极隔离。

    Write pole with a synthesized low magnetization shield
    4.
    发明授权
    Write pole with a synthesized low magnetization shield 有权
    用合成的低磁化屏蔽写磁极

    公开(公告)号：US08472136B2

    公开(公告)日：2013-06-25

    申请号：US12502149

    申请日：2009-07-13

    申请人： Sharat Batra ,  Michael Mallary ,  Mourad Benakli

    发明人： Sharat Batra ,  Michael Mallary ,  Mourad Benakli

    IPC分类号： G11B5/23 ,  G11B5/147

    CPC分类号： G11B5/3116

    摘要： A magnetic writer comprises a write pole and a trailing shield. The write pole is proximate an air bearing surface. The trailing shield is separated from the write pole by a first write gap. The trailing shield is configured with a magnetic layer disposed between the first write gap and a second write gap.

    摘要翻译： 磁性写入器包括写极和后屏蔽。 写柱靠近空气轴承表面。 尾部屏蔽通过第一写入间隙与写入极分离。 后屏蔽配置有设置在第一写入间隙和第二写入间隙之间的磁性层。

    Perpendicular recording head having integrated read and write portions
    8.
    发明授权
    Perpendicular recording head having integrated read and write portions 失效
    具有集成读写部分的垂直记录头

    公开(公告)号：US06621664B1

    公开(公告)日：2003-09-16

    申请号：US09795581

    申请日：2001-02-28

    申请人： Isabel Goncalves Trindade ,  Gregory John Parker ,  Sharat Batra ,  Robert Rottmayer

    发明人： Isabel Goncalves Trindade ,  Gregory John Parker ,  Sharat Batra ,  Robert Rottmayer

    IPC分类号： G11B539

    CPC分类号： B82Y10/00 ,  G11B5/1278 ,  G11B5/3954 ,  G11B5/3967 ,  G11B5/455 ,  G11B2005/0016 ,  G11B2005/0029 ,  Y10S977/725 ,  Y10S977/943

    摘要： An integrated read/write perpendicular recording head facilitates the use of magnetic storage media having a high magnetic recording density and high data rates. The use of a perpendicular write portion provides adequate space between the main and opposing poles for a read element and associated electrical contacts therebetween. The use of a differential dual spin valve as a read element eliminates the need for magnetic shielding of the read element. Such a structure permits the read element and main write pole to be close together, thereby minimizing seek time, and permitting rapid transition from read to write operations, and vice versa.

    摘要翻译： 集成的读/写垂直记录头有利于使用具有高磁记录密度和高数据速率的磁存储介质。 垂直写入部分的使用在读取元件的主极和相对极之间提供足够的空间，并且在它们之间相关联的电接触。 使用差分双自旋阀作为读取元件消除了对读取元件的磁屏蔽的需要。 这种结构允许读取元件和主要写入极靠近在一起，从而最小化寻找时间，并允许从读取到写入操作的快速转换，反之亦然。

    Wire and wire lead designs for a wire-assisted magnetic write device
    9.
    发明授权
    Wire and wire lead designs for a wire-assisted magnetic write device 有权
    线辅助磁性写入装置的线和导线设计

    公开(公告)号：US09159339B2

    公开(公告)日：2015-10-13

    申请号：US11925012

    申请日：2007-10-26

    申请人： Werner Scholz ,  Thomas William Clinton ,  Sharat Batra ,  Mark Thomas Kief ,  Eric S. Linville ,  Wei Peng ,  Kenneth A. Medlin

    发明人： Werner Scholz ,  Thomas William Clinton ,  Sharat Batra ,  Mark Thomas Kief ,  Eric S. Linville ,  Wei Peng ,  Kenneth A. Medlin

    IPC分类号： G11B5/31 ,  G11B5/11 ,  G11B5/127 ,  G11B5/00

    CPC分类号： G11B5/1278 ,  G11B2005/001 ,  G11B2005/0029

    摘要： A magnetic device includes a write element having a write element tip that defines a medium confronting surface. The write element is operable to generate a first field at the medium confronting surface. A conductor is proximate the write element tip and first and second conductive leads are connected to the conductor and configured to deliver a current to the conductor to generate a second field that augments the first field. First and second side elements are disposed on opposite sides of the write element tip in a cross-track direction at the medium confronting surface. At least a portion of the first conductive lead is disposed adjacent the first side element on a side opposite the medium confronting surface, and at least a portion of the second conductive lead is disposed adjacent the second side element on a side opposite the medium confronting surface.

    摘要翻译： 磁性装置包括具有限定介质面对表面的写入元件尖端的写入元件。 写入元件可操作以在介质面对面产生第一场。 导体靠近写入元件尖端，并且第一和第二导电引线连接到导体并且被配置为将电流传送到导体以产生增强第一场的第二场。 第一和第二侧面元件在介质面对面处沿着横向方向设置在写入元件尖端的相对侧上。 第一导电引线的至少一部分在与介质相对表面相对的一侧邻近第一侧元件设置，并且第二导电引线的至少一部分邻近第二侧元件设置在与介质相对表面相对的一侧 。

    Magnetic recording head with notched shield
    10.
    发明授权
    Magnetic recording head with notched shield 有权
    磁记录头带有槽口屏蔽

    公开(公告)号：US08717707B2

    公开(公告)日：2014-05-06

    申请号：US13609657

    申请日：2012-09-11

    申请人： Mourad Benakli ,  Sharat Batra

    发明人： Mourad Benakli ,  Sharat Batra

    IPC分类号： G11B5/11 ,  G11B5/23 ,  G11B5/31

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315

    摘要： A magnetic recording head includes a magnetic recording write element including a main pole having a leading edge and an opposing trailing edge and a first side surface and a second side surface separating the leading edge from the trailing edge. A first side shield gap separates a first side shield from the first side of the main pole and a second side shield gap separates the second side shield from the second side of the main pole. A front magnetic shield is separated from the main pole trailing edge by a front shield gap. A recess extends into the front shield adjacent to the trailing edge, and parallel to the trailing edge. The recess extends laterally away from the main pole and into the front shield a distance greater than the first side shield gap or second side shield gap.

    摘要翻译： 磁记录头包括磁记录写元件，该磁记录写元件包括具有前缘和相对后缘的主极和分离前缘与后缘的第一侧表面和第二侧表面。 第一侧屏蔽间隙将第一侧屏蔽与主极的第一侧分开，并且第二侧屏蔽间隙将第二侧屏蔽与主极的第二侧分离。 前磁屏蔽通过前屏蔽间隙与主极后缘分离。 凹槽与后缘相邻地延伸到前屏蔽件中，并且平行于后缘。 凹部从主极横向延伸并且远离第一侧屏蔽间隙或第二侧屏蔽间隙的距离远离前屏蔽。