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103 条记录 (耗时 0.02 秒)

    Head for perpendicular recording with a floating trailing shield
    1.
    发明授权
    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：US07196871B2

    公开(公告)日：2007-03-27

    申请号：US10671639

    申请日：2003-09-26

    申请人： Yimin Hsu ,  Quang Le ,  Mason Lamar Williams

    发明人： Yimin Hsu ,  Quang Le ,  Mason Lamar Williams

    IPC分类号： G11B5/31 ,  G11B5/11

    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.

    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。

    Perpendicular recording head with floating-trailing shield extending around first and second sides of main pole piece
    4.
    发明授权
    Perpendicular recording head with floating-trailing shield extending around first and second sides of main pole piece 失效
    垂直记录头，浮动后挡板延伸在主极片的第一和第二侧

    公开(公告)号：US07440230B2

    公开(公告)日：2008-10-21

    申请号：US11708958

    申请日：2007-02-20

    申请人： Yimin Hsu ,  Quang Le ,  Mason Lamar Williams

    发明人： Yimin Hsu ,  Quang Le ,  Mason Lamar Williams

    IPC分类号： G11B5/31 ,  G11B5/11 ,  G11B5/39

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

    摘要： Heads for perpendicular recording using a floating-trailing shield 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 one embodiment the floating-trailing shield wraps around the sides of the main pole piece.

    摘要翻译： 描述使用浮动后挡板进行垂直记录的头部。 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。 在一个实施例中，浮动后挡板围绕主极片的侧面包裹。

    Head for perpendicular magnetic recording with a shield structure connected to the return pole piece
    5.
    发明授权
    Head for perpendicular magnetic recording with a shield structure connected to the return pole piece 有权
    磁头垂直磁记录，屏蔽结构连接到返回极片

    公开(公告)号：US07002775B2

    公开(公告)日：2006-02-21

    申请号：US10676742

    申请日：2003-09-30

    申请人： Yimin Hsu ,  Quang Le ,  James Lamar Nix ,  Mason Lamar Williams

    发明人： Yimin Hsu ,  Quang Le ,  James Lamar Nix ,  Mason Lamar Williams

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/315 ,  G11B2005/0029

    摘要： An embodiment of the invention is a head for perpendicular recording that has a trailing shield and side shields that are connected to the return pole piece by two studs of ferromagnetic material. The studs extend parallel to the track direction and are located a sufficient distance away from the main pole piece to reduce the flux flow from the main pole piece to the studs. Optionally the studs can be recessed behind the air-bearing surface. The preferred embodiment of the invention is a magnetic transducer with separated read and write heads for perpendicular recording.

    摘要翻译： 本发明的一个实施例是用于垂直记录的头部，其具有通过两个铁磁材料柱连接到返回极片的后屏蔽和侧屏蔽。 螺柱平行于轨道方向延伸，并且距离主极片足够远的距离，以减少从主极片到螺柱的通量流。 可选地，螺柱可以凹入空气轴承表面后面。 本发明的优选实施例是具有分离的用于垂直记录的读写头的磁性换能器。

    Laminated yoke head with a domain control element
    6.
    发明授权
    Laminated yoke head with a domain control element 失效
    具有域控制元件的层叠轭头

    公开(公告)号：US06259583B1

    公开(公告)日：2001-07-10

    申请号：US09154527

    申请日：1998-09-16

    申请人： Robert Edward Fontana, Jr. ,  Yimin Hsu ,  Prakash Kasiraj ,  Mason Lamar Williams

    发明人： Robert Edward Fontana, Jr. ,  Yimin Hsu ,  Prakash Kasiraj ,  Mason Lamar Williams

    IPC分类号： G11B5147

    CPC分类号： G11B5/3153 ,  G11B5/3113 ,  G11B5/3156

    摘要： The present invention is a magnetic head which has a preferably planar pole member having a yoke and a tip with a first planar pole P1 and a second planar pole P2 positioned above pole P1. The pole member is built up of two types of layers: a first type of layer with high magnetic permeability &mgr; and low anisotropy Hk, with the easy axis oriented substantially perpendicular to the flux propagation direction to ensure rapid response, and a second layer type which is non-magnetic. The magnetic head also has a domain control element whose magnetization in the vicinity of the pole tip P2 and in the absence of applied field is aligned along the length of the element so as to facilitate the conduction of flux between poles P1 and P2. The domain control element can be a non-laminated element made of a material with high saturation magnetization MS such as NiFe, Ni80Fe20, Ni45Fe55, NiFeCo, FeCo, CoZrNb, FeAlN and FeTaN and proper dimensioning of the element further increases the flux conduction efficiency.

    摘要翻译： 本发明是一种磁头，其具有优选的具有磁轭的平面磁极部件和具有位于磁极P1上方的第一平面磁极P1和第二平面磁极P2的末端。 极构件由两种类型的层构成：具有高磁导率μm和低各向异性H k的第一类型的层，易轴定向为基本上垂直于磁通传播方向，以确保快速响应，以及第二层类型 是非磁性的。 磁头还具有域控制元件，其磁极尖端P2附近的磁化和不存在施加磁场的磁化沿着元件的长度排列，以便于磁极P1和P2之间的磁通传导。 域控制元件可以是由诸如NiFe，Ni80Fe20，Ni45Fe55，NiFeCo，FeCo，CoZrNb，FeAlN和FeTaN的高饱和磁化MS的材料制成的非层叠元件，并且元件的适当尺寸进一步增加了通量传导效率。

    High data rate write head
    7.
    发明授权
    High data rate write head 有权

    公开(公告)号：US06693769B2

    公开(公告)日：2004-02-17

    申请号：US09884608

    申请日：2001-06-18

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

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

    IPC分类号： G11B5147

    CPC分类号： G11B5/3136 ,  G11B5/3116 ,  G11B5/313 ,  Y10T29/49044

    摘要： A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing surface and defines a track width of a write head. A write gap layer is located between the first pole piece and the pole tip. A dielectric first insulation layer interfaces first and second side surfaces of the pole tip and is located between the first and second coil layers. The second pole piece has a ferromagnetic second pole piece structure which is magnetically connected to each of the pole tip and the first pole piece and extends across the second coil layer. In a first embodiment the second pole piece structure is a single layer and in a second embodiment the second pole piece structure has front and back components with a flat laminated second pole piece yoke layer located therebetween.

    High data rate write head
    8.
    发明授权
    High data rate write head 失效
    高数据率写头

    公开(公告)号：US06952326B2

    公开(公告)日：2005-10-04

    申请号：US10611627

    申请日：2003-06-30

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

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

    IPC分类号： G11B5/31 ,  G11B5/127

    CPC分类号： G11B5/3136 ,  G11B5/3116 ,  G11B5/313 ,  Y10T29/49044

    摘要： A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing surface and defines a track width of a write head. A write gap layer is located between the first pole piece and the pole tip. A dielectric first insulation layer interfaces first and second side surfaces of the pole tip and is located between the first and second coil layers. The second pole piece has a ferromagnetic second pole piece structure which is magnetically connected to each of the pole tip and the first pole piece and extends across the second coil layer. In a first embodiment the second pole piece structure is a single layer and in a second embodiment the second pole piece structure has front and back components with a flat laminated second pole piece yoke layer located therebetween.

    摘要翻译： 磁头组件包括第一和第二极片以及第一和第二线圈层，其中第二极靴具有形成空气轴承表面的一部分并限定写入头的轨道宽度的铁磁极尖端。 写间隙层位于第一极片和极尖之间。 电介质第一绝缘层与极尖的第一和第二侧表面接合并位于第一和第二线圈层之间。 第二极片具有铁磁第二极片结构，其磁极连接到极尖和第一极靴中的每一个并且延伸穿过第二线圈层。 在第一实施例中，第二极靴结构是单层，在第二实施例中，第二极靴结构具有前后组件，其间具有平坦的层叠的第二极片轭层。