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1.发明授权Microwave-assisted magnetic recording with collocated microwave and write fields 有权微波辅助磁记录与并置微波和写字段公开(公告)号：US08422159B2
公开(公告)日：2013-04-16
申请号：US12478461
申请日：2009-06-04
CPC分类号： G11B5/6005 , G11B5/02 , G11B5/314 , G11B2005/0005 , G11B2005/0024
摘要： Methods and devices are provided for microwave-assisted magnetic recording with collocated microwave and write fields. An illustrative device includes a magnetic write pole and one or more alternating-field components. The magnetic write pole is configured for providing a magnetic write field. The one or more alternating-field components are disposed to at least partially coincide with the magnetic write pole. The one or more alternating-field components are configured to provide an alternating magnetic field having a microwave frequency and an orientation that is at least partially transverse to the magnetic write field.
摘要翻译： 提供了微波辅助磁记录与并置微波和写字段的方法和设备。 说明性装置包括磁性写入极和一个或多个交变场分量。 磁写入极被配置为提供磁写入场。 一个或多个交变场分量设置成至少部分地与磁写入极重合。 一个或多个交变场分量被配置为提供具有微波频率和至少部分地横向于磁写入场的取向的交变磁场。
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2.发明申请MICROWAVE-ASSISTED MAGNETIC RECORDING WITH COLLOCATED MICROWAVE AND WRITE FIELDS 有权MICROWAVE辅助磁记录与收缩的微波和写字段公开(公告)号：US20100309577A1
公开(公告)日：2010-12-09
申请号：US12478461
申请日：2009-06-04
CPC分类号： G11B5/6005 , G11B5/02 , G11B5/314 , G11B2005/0005 , G11B2005/0024
摘要： Methods and devices are provided for microwave-assisted magnetic recording with collocated microwave and write fields. An illustrative device includes a magnetic write pole and one or more alternating-field components. The magnetic write pole is configured for providing a magnetic write field. The one or more alternating-field components are disposed to at least partially coincide with the magnetic write pole. The one or more alternating-field components are configured to provide an alternating magnetic field having a microwave frequency and an orientation that is at least partially transverse to the magnetic write field.
摘要翻译： 提供了微波辅助磁记录与并置微波和写字段的方法和设备。 说明性装置包括磁性写入极和一个或多个交变场分量。 磁写入极被配置为提供磁写入场。 一个或多个交变场分量设置成至少部分地与磁写入极重合。 一个或多个交变场分量被配置为提供具有微波频率和至少部分地横向于磁写入场的取向的交变磁场。
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公开(公告)号：US08848316B2
公开(公告)日：2014-09-30
申请号：US12892083
申请日：2010-09-28
申请人： Mark Thomas Kief , Alexandru Cazacu , Kaizhong Gao , Mark Anthony Gubbins , Ibro Tabakovic , Christina Laura Hutchinson , David Christopher Seets , James Gary Wessel
发明人： Mark Thomas Kief , Alexandru Cazacu , Kaizhong Gao , Mark Anthony Gubbins , Ibro Tabakovic , Christina Laura Hutchinson , David Christopher Seets , James Gary Wessel
CPC分类号： G11B5/858 , C25D5/02 , C25D5/12 , C25D7/00 , G11B5/1278 , G11B5/3116
摘要： A perpendicular write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing side, a leading side that is opposite the trailing side, and first and second sides; side gaps, wherein the side gaps are proximate the write pole along the first and second side edges; and side shields proximate the side gaps, wherein the side shields have gap facing surfaces and include at least one set of alternating layers of magnetic and non-magnetic materials, wherein only one kind of material makes up the gap facing surfaces at the air bearing surfaces.
摘要翻译： 一个垂直写头，写头具有一个空气支承表面，该写头包括一个写磁极，其中在空气轴承表面处，写极具有一个后侧，一个与后侧相对的前侧，第一个 和第二面 侧间隙，其中所述侧间隙沿着所述第一侧边缘和所述第二侧边缘接近所述写入极; 以及靠近所述侧间隙的侧屏蔽件，其中所述侧屏蔽件具有面向间隙的表面并且包括至少一组磁性和非磁性材料的交替层，其中只有一种材料构成在所述空气轴承表面处的面向表面的间隙 。
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公开(公告)号：US20120075748A1
公开(公告)日：2012-03-29
申请号：US12892083
申请日：2010-09-28
申请人： Mark Thomas Kief , Alexandru Cazacu , Kaizhong Gao , Mark Anthony Gubbins , Ibro Tabakovic , Christina Laura Hutchinson , David Christopher Seets , James Gary Wessel
发明人： Mark Thomas Kief , Alexandru Cazacu , Kaizhong Gao , Mark Anthony Gubbins , Ibro Tabakovic , Christina Laura Hutchinson , David Christopher Seets , James Gary Wessel
CPC分类号： G11B5/858 , C25D5/02 , C25D5/12 , C25D7/00 , G11B5/1278 , G11B5/3116
摘要： A perpendicular write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing side, a leading side that is opposite the trailing side, and first and second sides; side gaps, wherein the side gaps are proximate the write pole along the first and second side edges; and side shields proximate the side gaps, wherein the side shields have gap facing surfaces and include at least one set of alternating layers of magnetic and non-magnetic materials, wherein only one kind of material makes up the gap facing surfaces at the air bearing surfaces.
摘要翻译： 一个垂直写头，写头具有一个空气支承表面，该写头包括一个写磁极，其中在空气轴承表面处，写极具有一个后侧，一个与后侧相对的前侧，第一个 和第二面 侧间隙，其中所述侧间隙沿着所述第一侧边缘和所述第二侧边缘接近所述写入极; 以及靠近所述侧间隙的侧屏蔽件，其中所述侧屏蔽件具有面向间隙的表面并且包括至少一组磁性和非磁性材料的交替层，其中只有一种材料构成在所述空气轴承表面处的面向表面的间隙 。
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公开(公告)号：US20190096435A1
公开(公告)日：2019-03-28
申请号：US15294231
申请日：2016-10-14
申请人： Kaizhong Gao
发明人： Kaizhong Gao
摘要： A magnetic recording method, system and apparatus are described to increasing areal density capability (ADC) for a data storage system, where in different data tracks were written with different write configurations or with different writers in a particular way that is optimized to improve areal density for a data storage device. In an aspect, the data tracks were labeled as bottom, middle or top tracks, the write order follows in a particular way among different tracks, middle and top tracks partially trim the previously written track from one side. The distance between neighboring tracks, or the percentage of track trimmed, depend on the labels they have and the drive architecture used, are different. The particular write order can be in sequential or can have a certain level of randomness as set by the drive. The write order for each operation depend on the label determined by the drive for a given drive capacity requirement. For the apparatus to enable such approach, additional alignment condition between readers, writer, heater and temperature sensor are also optimized to improve performance, areal density and reliability.
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公开(公告)号：US09058823B2
公开(公告)日：2015-06-16
申请号：US12502179
申请日：2009-07-13
申请人： Alexey V. Nazarov , Vladyslav Alexandrovich Vasko , Olle Gunnar Heinonen , Lijuan Zou , Thomas R. Boonstra , Xilin Peng , Kaizhong Gao
发明人： Alexey V. Nazarov , Vladyslav Alexandrovich Vasko , Olle Gunnar Heinonen , Lijuan Zou , Thomas R. Boonstra , Xilin Peng , Kaizhong Gao
CPC分类号： G11B5/3116 , G11B5/3106 , G11B5/3163
摘要： A transducer includes magnetic material formed on a substrate that is shaped to include a trailing edge, a leading edge and a pair of opposing sidewalls extending between the trailing edge and the leading edge. A layer of protective material is positioned in contact with each of the pair of sidewalls of the shaped magnetic material. Backfill material surrounds the protective material on each of the pair of sidewalls of the shaped magnetic material.
摘要翻译： 换能器包括形成在基底上的磁性材料，其被成形为包括在后缘和前缘之间延伸的后缘，前缘和一对相对的侧壁。 一层保护材料定位成与成形磁性材料的一对侧壁中的每一个接触。 回填材料围绕成形磁性材料的一对侧壁中的每一个上的保护材料。
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7.发明授权公开(公告)号：US08810964B2
公开(公告)日：2014-08-19
申请号：US13823672
申请日：2010-09-15
申请人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
发明人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
IPC分类号： G11B5/127
CPC分类号： G11B5/193 , G11B5/1278 , G11B5/187 , G11B5/315
摘要： A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.
摘要翻译： 公开了一种包括极端屏蔽的写入元件。 在所公开的实施例中，例如，极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分，以形成具有沿着侧屏蔽部分的长度在下游方向上减小的磁矩的分级侧屏蔽部分。 在另一个实施例中，极尖屏蔽包括侧面屏蔽部分，其具有沿磁极末端的侧边缘的部分长度延伸的缩短的长度。 在所示的实施例中，侧面屏蔽部分由具有在极尖的前缘前方的凹入部分的成形体形成。 凹入部分具有圆形的缩进表面轮廓，其形成圆顶轮廓，用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。
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公开(公告)号：US08711662B2
公开(公告)日：2014-04-29
申请号：US13590214
申请日：2012-08-21
申请人： Lien Lee , Xuhui Jin , Kaizhong Gao , Amit Itagi , William A. Challener
发明人： Lien Lee , Xuhui Jin , Kaizhong Gao , Amit Itagi , William A. Challener
IPC分类号： G11B11/00 , G11B5/31 , G11B5/48 , G11B5/60 , G11B7/122 , G11B7/1387 , G11B7/1384 , G11B5/00 , G11B11/105
CPC分类号： G11B5/314 , G11B5/4866 , G11B5/6088 , G11B7/122 , G11B7/1384 , G11B7/1387 , G11B11/10536 , G11B2005/0005 , G11B2005/0021 , Y10T428/11 , Y10T428/1171 , Y10T428/1193
摘要： An apparatus includes a waveguide shaped to direct light to a focal point, and a near-field transducer positioned adjacent to the focal point, wherein the near-field transducer includes a dielectric component and a metallic component positioned adjacent to at least a portion of the dielectric component. An apparatus includes a waveguide shaped to direct light to a focal point, and a near-field transducer positioned adjacent to the focal point, wherein the near-field transducer includes a first metallic component, a first dielectric layer positioned adjacent to at least a portion of the first metallic component, and a second metallic component positioned adjacent to at least a portion of the first dielectric component.
摘要翻译： 一种装置包括成形为将光引导到焦点的波导和邻近焦点定位的近场换能器，其中近场换能器包括介电部件和金属部件，该金属部件邻近至少一部分 介电元件。 一种装置包括成形为将光引导到焦点的波导和邻近焦点定位的近场换能器，其中近场换能器包括第一金属部件，第一介电层位于与至少一部分 的第一金属部件和与第一介电部件的至少一部分相邻定位的第二金属部件。
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公开(公告)号：US08643979B2
公开(公告)日：2014-02-04
申请号：US10853310
申请日：2004-05-24
申请人： Kaizhong Gao
发明人： Kaizhong Gao
IPC分类号： G11B5/127
CPC分类号： G11B5/1278
摘要： Magnetic recording techniques, devices, and systems under a tilted perpendicular recording configuration. An implementation of such a system may include a magnetic head having a single pole to produce a magnetic field along a perpendicular direction; and a storage medium having a top surface to be substantially perpendicular to the perpendicular direction and positioned to interact with the magnetic field, wherein the storage medium includes (1) a magnetic medium layer that has anisotropy easy axes tilted at a tilting angle with respect to the perpendicular direction, (2) a growth layer beneath the magnetic medium layer, and (3) a soft under layer beneath the growth layer.
摘要翻译： 磁记录技术，设备和倾斜垂直记录配置下的系统。 这种系统的实现可以包括具有单极以沿垂直方向产生磁场的磁头; 以及存储介质，其具有基本上垂直于垂直方向并且定位成与磁场相互作用的顶表面，其中所述存储介质包括（1）磁介质层，所述磁介质层具有倾斜相对于 垂直方向，（2）在磁介质层下面的生长层，和（3）生长层下面的软下层。
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公开(公告)号：US08582251B2
公开(公告)日：2013-11-12
申请号：US12727670
申请日：2010-03-19
申请人： Kaizhong Gao , Lei Wang , Jiaoming Qiu , Yonghua Chen
发明人： Kaizhong Gao , Lei Wang , Jiaoming Qiu , Yonghua Chen
IPC分类号： G11B5/39
CPC分类号： G11B5/398 , B82Y25/00 , G01R33/093 , G11B5/3932
摘要： Various embodiments generally relate to a magnetic sensor, and more specifically to a magnetoresistive read head sensor. In one such exemplary embodiment, a magnetic sensor comprises a sensor stack and magnetic bias elements positioned adjacent opposite sides of the sensor stack. At least one of the bias elements has a non-rectangular shape, such as substantially trapezoidal or parallelogram shapes having non-perpendicular corners.
摘要翻译： 各种实施例通常涉及磁传感器，更具体地涉及磁阻读头传感器。 在一个这样的示例性实施例中，磁传感器包括传感器堆叠和邻近传感器堆叠的相对侧定位的磁偏置元件。 至少一个偏置元件具有非矩形形状，例如具有非垂直角的大致梯形或平行四边形。
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