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45 条记录 (耗时 0.021 秒)

    Thin film read/write head for minimizing erase fringing and method of making the same
    1.
    发明授权
    Thin film read/write head for minimizing erase fringing and method of making the same 失效
    薄膜读/写头，用于最大限度地减少擦除边缘及其制作方法

    公开(公告)号：US5267112A

    公开(公告)日：1993-11-30

    申请号：US767994

    申请日：1991-09-30

    申请人： Sharat Batra ,  Seshadri Ramaswamy ,  Michael L. Mallary

    发明人： Sharat Batra ,  Seshadri Ramaswamy ,  Michael L. Mallary

    IPC分类号： G11B5/187 ,  G11B5/31 ,  G11B5/23

    CPC分类号： G11B5/3116 ,  G11B5/1871 ,  Y10T29/49052

    摘要： The present invention pertains to a thin film magnetic recording head which minimizes erase fringing and the process for manufacturing the thin film magnetic recording head. The head is used to record and read information made up of alternating magnetization patterns on a magnetic recording medium. Known recording heads cause erase fringing of the magnetic medium during the write operations. The structure of the recording head of the present invention has the ABS portion of one of two magnetic poles beveled away from ABS at the gap to zero throat, reduces erase fringing of the magnetic recording medium and is easily manufactured. By reducing erase fringing, the present invention enables an increase in disk density of information without risking loss of data integrity.

    Process for fabricating magnetic film recording head for use with a magnetic recording media
    2.
    发明授权
    Process for fabricating magnetic film recording head for use with a magnetic recording media 失效
    制造磁记录头用于磁记录介质的方法

    公开(公告)号：US5314596A

    公开(公告)日：1994-05-24

    申请号：US888105

    申请日：1992-05-26

    申请人： Harold B. Shukovsky ,  Sharat Batra ,  Michael L. Mallary

    发明人： Harold B. Shukovsky ,  Sharat Batra ,  Michael L. Mallary

    IPC分类号： G11B5/31 ,  C23C14/34

    CPC分类号： G11B5/3153 ,  G11B5/3113 ,  G11B5/3163

    摘要： A thin film magnetic recording head for high-density recording applications. The head includes a pole formed from at least two ferromagnetic material layers with one layer having high anisotropy (H.sub.k) and low permeability (.mu.), and the other layer having low H.sub.k and high .mu.. The high H.sub.k layer provides the lower magnetic impedance flux path in the tip region and the low H.sub.k layer provides the lower magnetic impedance path in the yoke region of the head. A non-magnetic film may be disposed between the layers, with a thickness chosen to minimize domain flux coupling of the two magnetic layers, while allowing magnetic signal flux transfer between layers at an appropriate point between the tip and the yoke. The pole may be sculpted so that the low H.sub.k layer extends only partially into the tip region, or so that the high H.sub.k layer extends only partially into the yoke. Alternatively, the invention may use a laminated, high permeability layer and a homogeneous layer in place of the high H.sub.k and low H.sub.k layers.

    摘要翻译： 一种用于高密度记录应用的薄膜磁记录头。 头包括由至少两个铁磁材料层形成的极，一个具有高各向异性（Hk）和低磁导率（μ）的层，另一层具有低Hk和高mu。 高Hk层在尖端区域提供较低的磁阻抗通量，低Hk层在磁头的磁轭区域提供较低的磁阻抗路径。 可以在层之间设置非磁性膜，其厚度被选择为最小化两个磁性层的磁通量耦合，同时允许在尖端和轭之间的适当点处的层之间的磁信号通量传递。 极可以被雕刻，使得低Hk层仅部分地延伸到尖端区域，或者使得高Hk层仅部分地延伸到轭中。 或者，本发明可以使用层叠的高透过性层和均匀层代替高Hk和低Hk层。

    Magnetic pole configuration for high density thin film recording head
    3.
    发明授权
    Magnetic pole configuration for high density thin film recording head 失效
    用于高密度薄膜记录头的磁性配置

    公开(公告)号：US5157570A

    公开(公告)日：1992-10-20

    申请号：US546280

    申请日：1990-06-29

    申请人： Harold B. Shukovsky ,  Sharat Batra ,  Michael L. Mallary

    发明人： Harold B. Shukovsky ,  Sharat Batra ,  Michael L. Mallary

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3153 ,  G11B5/3113 ,  G11B5/3163

    摘要： A thin film magnetic recording head for high-density recording applications. The head includes a pole formed from at least two ferromagnetic material layers with one layer having high anisotropy (H.sub.k) and low permeability (.mu.), and the other layer having low H.sub.k and high .mu.. The high H.sub.k layer provides the lower magnetic impedance flux path in the tip region and the low H.sub.k layer provides the lower magnetic impedance path in the yoke region of the head. A non-magnetic film may be disposed between the layers, with a thickness chosen to minimize domain flux coupling of the two magnetic layers, while allowing magnetic signal flux transfer between layers at an appropriate point between the tip and the yoke. The pole may be sculpted so that the low H.sub.k layer extends only partially into the tip region, or so that the high H.sub.k layer extends only partially into the yoke. Alternatively, the invention may use a laminated, high permeability layer and a homogeneous layer in place of the high H.sub.k and low H.sub.k layers.

    Write pole with a synthesized low magnetization shield
    5.
    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
    9.
    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
    10.
    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 。