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17 条记录 (耗时 0.022 秒)

    Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece
    3.
    发明申请
    Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece 失效
    具有与第一极片磁耦合的写入屏蔽的垂直记录磁头

    公开(公告)号：US20050024766A1

    公开(公告)日：2005-02-03

    申请号：US10631642

    申请日：2003-07-30

    申请人： Gautam Khera ,  Quang Le ,  Son Nguyen ,  Aron Pentek ,  Mason Williams

    发明人： Gautam Khera ,  Quang Le ,  Son Nguyen ,  Aron Pentek ,  Mason Williams

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/33

    CPC分类号： G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3153 ,  G11B5/3176 ,  G11B5/33

    摘要： A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located between the first and second pole pieces and between a head surface of the write head and the back gap. The second pole piece has a pole tip which is located at the head surface and a recessed ferromagnetic write shield layer. A nonmagnetic isolation layer is located between the second pole piece and the write shield layer and at least one ferromagnetic stud is magnetically connected between the first pole piece layer and the write shield layer and is located between the head surface and the insulation stack.

    摘要翻译： 垂直记录写头具有在后隙连接的铁磁第一和第二极片，并且其中嵌有写入线圈层的绝缘堆叠位于第一和第二极靴之间以及写头的头表面和 背隙。 第二极片具有位于头表面的极尖和凹陷的铁磁写屏蔽层。 非磁性隔离层位于第二极靴和写入屏蔽层之间，并且至少一个铁磁螺柱磁性地连接在第一极靴层和写入屏蔽层之间，并位于头部表面和绝缘堆叠之间。

    Magnetic transducer with pedestal pole piece structure
    7.
    发明申请
    Magnetic transducer with pedestal pole piece structure 审中-公开
    具有基座极片结构的磁性换能器

    公开(公告)号：US20050007697A1

    公开(公告)日：2005-01-13

    申请号：US10912657

    申请日：2004-08-04

    申请人： Yimin Hsu ,  Hugo Santini ,  Neil Smith ,  Mason Williams

    发明人： Yimin Hsu ,  Hugo Santini ,  Neil Smith ,  Mason Williams

    IPC分类号： G11B5/31 ,  G11B5/147

    CPC分类号： G11B5/3116 ,  G11B5/3113 ,  G11B5/313

    摘要： A magnetic transducer with a write head with one or more coil layers and a pedestal pole piece on P1 is disclosed. In one embodiment the first and second coils and the P1 pedestal are formed on essentially planarized surfaces. The P1 pedestal defines the zero throat height (ZTH) with a 90 degree apex angle which cuts down flux leakage and improves efficiency. The first and second coils are disposed on opposite sides of the gap layer. The write head preferably has upper and lower back flux closure pieces in contact with the pole pieces to complete the back of the yoke. Various combinations of these features allow heads according to the invention to be made with a very short yoke with resulting improved efficiency. In alternative embodiments the coil below the gap layer may be omitted and/or an additional coil above the gap layer may be added.

    摘要翻译： 公开了一种具有一个或多个线圈层的写头和P1上的基座极片的磁换能器。 在一个实施例中，第一和第二线圈和P1基座形成在基本平坦的表面上。 P1基座定义零喉高度（ZTH），90度顶角可以减少漏磁，提高效率。 第一和第二线圈设置在间隙层的相对侧上。 写头优选地具有与极片接触的上下磁通闭合件，以完成磁轭的后部。 这些特征的各种组合使得根据本发明的头部具有非常短的轭，从而提高效率。 在替代实施例中，间隙层下面的线圈可以被省略和/或可以添加间隙层上方的附加线圈。

    Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio
    8.
    发明申请
    Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio 失效
    磁记录磁盘驱动器，具有高交叉磁道分辨率的读头和低比特宽比的磁盘

    公开(公告)号：US20060285257A1

    公开(公告)日：2006-12-21

    申请号：US11158444

    申请日：2005-06-21

    申请人： Thomas Albrecht ,  Robert Fontana ,  Ching Tsang ,  Mason Williams ,  Bruce Wilson

    发明人： Thomas Albrecht ,  Robert Fontana ,  Ching Tsang ,  Mason Williams ,  Bruce Wilson

    IPC分类号： G11B5/33

    CPC分类号： G11B5/3909 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/3996

    摘要： A continuous-media or patterned-media disk drive with a low ratio of linear bit density in bits per inch (BPI) in the along-the-track direction to track density in tracks per inch (TPI) in the cross-track direction has a magnetoresistive read head with high cross-track spatial resolution. The read head is located between two magnetic shields, with the shields and read head formed on a side surface of the head carrier perpendicular to the carrier's disk-facing surface. The carrier is supported by the disk drive actuator with the side surface of the carrier oriented generally parallel to the data tracks. In this arrangement the high-spatial-resolution direction of the read head (the transverse direction perpendicular to the side surface on which the head is formed) is in the radial or cross-track direction.

    摘要翻译： 在轨道方向上沿线方向的线性位密度（以比特/英寸（BPI））为单位的跟踪密度（以每英里轨道（TPI）为单位）的连续介质或图形媒体盘驱动器， 具有高交叉轨道空间分辨率的磁阻读头。 读取头位于两个磁屏蔽之间，其中屏蔽和读取头形成在头托架的垂直于托架面向盘的表面的侧表面上。 载体由磁盘驱动器致动器支撑，其中载体的侧表面大致平行于数据轨道。 在这种布置中，读取头的高空间分辨率方向（垂直于形成头部的侧面的横向方向）处于径向或横向方向。

    Head for perpendicular recording with a floating trailing shield
    9.
    发明申请
    Head for perpendicular recording with a floating trailing shield 有权
    头垂直记录与浮动的后盾

    公开(公告)号：US20050068669A1

    公开(公告)日：2005-03-31

    申请号：US10671639

    申请日：2003-09-26

    申请人： Yimin Hsu ,  Quang Le ,  Mason Williams

    发明人： Yimin Hsu ,  Quang Le ,  Mason Williams

    IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/147 ,  G11B5/187

    CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/1871

    摘要： Heads for perpendicular recording using a floating-trailing shield as part of the magnetic circuit for writing magnetic domains in the recording media are described. The floating-trailing shield is separated from the main pole piece by a layer of non-magnetic material along its entire length and the air bearing surface of the floating-trailing shield is substantially larger than that of the main pole piece. The reluctance between the trailing shield and the underlayer in the recording medium is made so low that both are at the same magnetomotive force (or potential), so that no direct connection is needed between the floating-trailing shield and the yoke. When the head is used in a storage system with a magnetic recording medium with a soft underlayer, the floating-trailing shield is, in effect, magnetically shorted to the return pole piece during recording. In a second embodiment of the invention the floating-trailing shield extends around the sides of the main pole piece to reduce the off-track magnetic field.

    摘要翻译： 描述了使用浮动拖尾屏蔽作为用于在记录介质中写入磁畴的磁路的一部分的垂直记录头。 浮动后挡板沿着其整个长度由非磁性材料层与主极片分开，并且浮动后挡板的空气支承表面基本上大于主极片的空气支承表面。 记录介质中的后屏蔽和底层之间的磁阻被制作得很低以致两者都具有相同的磁动势（或电位），使得在浮动后挡板和轭之间不需要直接连接。 当头部用于具有软底层的磁记录介质的存储系统中时，浮动拖尾屏蔽件实际上在记录期间与返回极片磁性短路。 在本发明的第二实施例中，浮动后挡板围绕主极片的侧面延伸以减少偏离磁场。