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1. 发明授权

US08786969B2 Shingled recording systems using multiple pass write, single pass read architecture 有权
标题翻译：嵌入式录音系统采用多通写，单通读结构
公开(公告)号：US08786969B2
公开(公告)日：2014-07-22
申请号：US13251031
申请日：2011-09-30
申请人： Prakash Kasiraj , Thomas R. Albrecht
发明人： Prakash Kasiraj , Thomas R. Albrecht
IPC分类号： G11B20/10
CPC分类号： G11B5/012 , G11B5/746
摘要： In one embodiment, a magnetic data storage system includes a bit patterned magnetic medium, wherein centers of bits in adjacent data tracks do not lie on a common line in a cross-track direction, a magnetic head having a writer element having a width greater than a width of a data track in a track width direction adapted for writing data successively to at least two adjacent data tracks of the magnetic medium, and a reader element having a width larger than the width of a data track in the track width direction adapted for reading data concurrently from the at least two adjacent data tracks of the magnetic medium in a single pass, a drive mechanism for passing the magnetic medium over the magnetic head, and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head.
摘要翻译：在一个实施例中，磁数据存储系统包括位图形磁介质，其中相邻数据磁道中的位中心不位于交叉磁道方向上的公共线上，磁头具有写入器元件，宽度大于适于将数据连续地写入磁介质的至少两个相邻数据轨道的轨道宽度方向上的数据轨道的宽度，以及宽度大于轨道宽度方向上的数据轨道的宽度的读取器元件，在单次通过中从磁介质的至少两个相邻数据轨道同时读取数据，用于使磁介质通过磁头的驱动机构，以及电耦合到磁头的控制器，用于控制磁头的操作。

2. 发明授权

US08848314B2 Write head designed for adjusting relative write phase between subtracks of a patterned media hypertrack 有权
标题翻译：写头用于调整图案化媒体超曲线的子轨道之间的相对写入相位
公开(公告)号：US08848314B2
公开(公告)日：2014-09-30
申请号：US13314029
申请日：2011-12-07
申请人： Thomas R. Albrecht , Prakash Kasiraj
发明人： Thomas R. Albrecht , Prakash Kasiraj
IPC分类号： G11B5/127
CPC分类号： G11B5/09 , B82Y10/00 , G11B5/012 , G11B5/11 , G11B5/3116 , G11B5/596 , G11B5/746 , G11B2005/0005
摘要： A magnetic recording system configured for recording to a bit patterned media using both hypertrack recording and shingled recording. The magnetic recording system includes a write pole with a notched trailing edge that results in a write bubble with a trailing edge that has two outer convex lobes separated by a centrally disposed concave region. By locating one of the lobes over first and second data tracks of a hypertrack, a proper alignment of the relative phase of the two tracks can be maintained. Further adjustment to the alignment can be achieved by adjusting the radial location of the write head.
摘要翻译：磁记录系统，被配置为使用高跟踪记录和带状记录来记录到位图案化介质。磁记录系统包括具有凹口后缘的写极，其导致具有后缘的写气泡，后缘具有由中心设置的凹区分开的两个外凸起凸起。通过将一个波瓣定位在超曲线的第一和第二数据轨道上，可以保持两个轨道的相对相位的适当对准。通过调整写入头的径向位置可以进一步调整对准。

3. 发明申请

US20130148228A1 WRITE HEAD DESIGNED FOR ADJUSTING RELATIVE WRITE PHASE BETWEEN SUBTRACKS OF A PATTERNED MEDIA HYPERTRACK 有权
标题翻译：用于调整图形化介质的相对写入相位的写入头
公开(公告)号：US20130148228A1
公开(公告)日：2013-06-13
申请号：US13314029
申请日：2011-12-07
申请人： Thomas R. Albrecht , Prakash Kasiraj
发明人： Thomas R. Albrecht , Prakash Kasiraj
IPC分类号： G11B5/56 , G11B5/09 , G11B5/596 , G11B5/127
CPC分类号： G11B5/09 , B82Y10/00 , G11B5/012 , G11B5/11 , G11B5/3116 , G11B5/596 , G11B5/746 , G11B2005/0005
摘要： A magnetic recording system configured for recording to a bit patterned media using both hypertrack recording and shingled recording. The magnetic recording system includes a write pole with a notched trailing edge that results in a write bubble with a trailing edge that has two outer convex lobes separated by a centrally disposed concave region. By locating one of the lobes over first and second data tracks of a hypertrack, a proper alignment of the relative phase of the two tracks can be maintained. Further adjustment to the alignment can be achieved by adjusting the radial location of the write head.
摘要翻译：磁记录系统，被配置为使用高跟踪记录和带状记录来记录到位图案化介质。磁记录系统包括具有凹口后缘的写极，其导致具有后缘的写气泡，后缘具有由中心设置的凹区分开的两个外凸起凸起。通过将一个波瓣定位在超曲线的第一和第二数据轨道上，可以保持两个轨道的相对相位的适当对准。通过调整写入头的径向位置可以进一步调整对准。

4. 发明申请

US20130083416A1 SHINGLED RECORDING SYSTEMS USING MULTIPLE PASS WRITE, SINGLE PASS READ ARCHITECTURE 有权
标题翻译：使用多个通用写入的单声道记录系统，单通道阅读架构
公开(公告)号：US20130083416A1
公开(公告)日：2013-04-04
申请号：US13251031
申请日：2011-09-30
申请人： Prakash Kasiraj , Thomas R. Albrecht
发明人： Prakash Kasiraj , Thomas R. Albrecht
IPC分类号： G11B5/09
CPC分类号： G11B5/012 , G11B5/746
摘要： In one embodiment, a magnetic data storage system includes a bit patterned magnetic medium, wherein centers of bits in adjacent data tracks do not lie on a common line in a cross-track direction, a magnetic head having a writer element having a width greater than a width of a data track in a track width direction adapted for writing data successively to at least two adjacent data tracks of the magnetic medium, and a reader element having a width larger than the width of a data track in the track width direction adapted for reading data concurrently from the at least two adjacent data tracks of the magnetic medium in a single pass, a drive mechanism for passing the magnetic medium over the magnetic head, and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head.
摘要翻译：在一个实施例中，磁数据存储系统包括位图形磁介质，其中相邻数据磁道中的位中心不位于交叉磁道方向上的公共线上，磁头具有写入器元件，宽度大于适于将数据连续地写入磁介质的至少两个相邻数据轨道的轨道宽度方向上的数据轨道的宽度，以及宽度大于轨道宽度方向上的数据轨道的宽度的读取器元件，在单次通过中从磁介质的至少两个相邻数据轨道同时读取数据，用于使磁介质通过磁头的驱动机构，以及电耦合到磁头的控制器，用于控制磁头的操作。

5. 发明授权

US07490212B2 System and method for writing data to dedicated bands of a hard disk drive 失效
标题翻译：将数据写入硬盘驱动器的专用频带的系统和方法
公开(公告)号：US07490212B2
公开(公告)日：2009-02-10
申请号：US10674093
申请日：2003-09-29
申请人： Prakash Kasiraj , Richard M. H. New , Jorge Campello de Souza , Mason Lamar Williams
发明人： Prakash Kasiraj , Richard M. H. New , Jorge Campello de Souza , Mason Lamar Williams
IPC分类号： G06F12/00
CPC分类号： G11B27/11 , G11B5/012 , G11B20/1217 , G11B2020/1238 , G11B2020/1298 , G11B2220/2516 , G11B2220/65
摘要： Data is written to a hard disk drive using shingled writing principles, i.e., each data track is partially overwritten when an immediately contiguous data track is written. Two or more contiguous data tracks establish a band, and a band may store data from one and only one file, such as an AV file.
摘要翻译：数据被写入硬盘驱动器，使用着色的写入原理，即当紧紧连续的数据磁道被写入时，每个数据磁道被部分重写。两个或更多个连续的数据轨道建立一个频带，并且频带可以存储来自一个文件（例如AV文件）的数据。

6. 发明授权

US07199986B2 Magnetoresistive sensor with decoupled hard bias multilayers 有权
标题翻译：具有解耦硬偏置多层的磁阻传感器
公开(公告)号：US07199986B2
公开(公告)日：2007-04-03
申请号：US10782301
申请日：2004-02-18
申请人： Marie-Claire Cyrille , Meng Ding , Kuok-San Ho , Prakash Kasiraj , Ernesto Marinero , James Lamar Nix , Brian York
发明人： Marie-Claire Cyrille , Meng Ding , Kuok-San Ho , Prakash Kasiraj , Ernesto Marinero , James Lamar Nix , Brian York
IPC分类号： G11B5/33
CPC分类号： G11B5/3932
摘要： A magnetic sensor is provided, having two bias layers separated by a decoupling layer to eliminate exchange coupling between the bias layers. The two bias layers may have differing coercivities, such that the biases provided by the bias layers to the free layer are independently adjustable. The grain structures of the two bias layers may be substantially decorrelated by the decoupling layer.
摘要翻译：提供了一种磁传感器，其具有由解耦层隔开的两个偏置层，以消除偏置层之间的交换耦合。两个偏置层可以具有不同的矫顽力，使得由偏置层提供给自由层的偏压是独立可调的。两个偏置层的晶粒结构可以通过去耦层基本上去相关。

7. 发明申请

US20060064866A1 Method for reducing damage to sliders during lapping 失效
标题翻译：在研磨过程中减少滑块损坏的方法
公开(公告)号：US20060064866A1
公开(公告)日：2006-03-30
申请号：US10957098
申请日：2004-09-30
申请人： Marie-Claire Cyrille , Prakash Kasiraj , Huey-Ming Tzeng
发明人： Marie-Claire Cyrille , Prakash Kasiraj , Huey-Ming Tzeng
IPC分类号： G11B5/33 , G11B5/187 , G11B5/127 , H04R31/00
CPC分类号： G11B5/3169 , G11B5/332 , G11B5/3932 , Y10T29/49041 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A process is described for fabricating sliders with reduced lapping damage to the hard-bias materials. The stack of layers for the magnetic sensor is deposited on a wafer and patterned into an initial shape. The hard-bias structures are fabricated at the side of the magnetic sensor as in the prior art. In each of the two described embodiments of the invention, the hard-bias material below the ABS is reduced or removed and replaced with a fill material such as alumina. A first embodiment reduces the hard-bias material below the ABS by forming an extended lapping gap along the ABS in both the sensor and hard-bias material. A second embodiment forms a photoresist mask over the sensor and the portion of the hard-bias/lead structures above the ABS and the exposed hard-bias/lead material below the ABS is thinned or completely removed by milling.
摘要翻译：描述了一种用于制造滑块的方法，减少了对硬偏置材料的研磨损伤。用于磁传感器的层堆叠沉积在晶片上并图案化成初始形状。如现有技术那样，在磁性传感器侧制造硬偏压结构。在本发明的两个所描述的实施例的每一个中，ABS下面的硬偏压材料被减少或移除，并用诸如氧化铝的填充材料代替。第一实施例通过在传感器和硬偏压材料中沿着ABS形成延伸的研磨间隙来减少ABS之下的硬偏置材料。第二实施例在传感器上形成光致抗蚀剂掩模，并且在ABS之上的硬偏置/引线结构的部分以及ABS下方的暴露的硬偏置/引线材料通过研磨被薄化或完全去除。

8. 发明申请

US20050070206A1 Slider fabrication system for sliders with integrated electrical lapping guides 失效
标题翻译：滑块制造系统，用于带集成电动研磨导轨的滑块
公开(公告)号：US20050070206A1
公开(公告)日：2005-03-31
申请号：US10675043
申请日：2003-09-29
申请人： Prakash Kasiraj , Quang Le , Huey Tzeng , Xiao Wu
发明人： Prakash Kasiraj , Quang Le , Huey Tzeng , Xiao Wu
IPC分类号： B24B37/00 , B24B49/16 , G11B5/60 , B24B49/00
CPC分类号： B24B49/16 , B24B37/00 , G11B5/3169
摘要： A slider is described with a resistive electro-lapping guide (ELG), which is aligned with a structure in the write head such as the throat height or trailing shield thickness and extends from the lapping region through the ABS and is connected to pads on the surface of the slider. In a second embodiment the ELG is disposed entirely in the section of the slider which will be removed by lapping. Another embodiment of the invention is a system for single slider lapping which simultaneously monitors the resistance of the read sensor or a read head ELG and at least one ELG that is aligned with a structure in the write head. A controller uses the resistance information to implement an algorithm which decides when lapping should be terminated.
摘要翻译：使用电阻式电动研磨引导件（ELG）描述滑块，其与写入头部中的结构对准，例如喉部高度或尾部屏蔽层厚度，并从研磨区域穿过ABS延伸并连接到滑块的表面。在第二实施例中，ELG完全设置在滑块的将通过研磨去除的部分中。本发明的另一个实施例是用于单个滑块研磨的系统，其同时监视读取传感器或读取头ELG和与写入头中的结构对准的至少一个ELG的电阻。控制器使用电阻信息来实现一种算法，该算法决定何时结束研磨。

9. 发明授权

US07360296B2 Method for reducing damage to sliders during lapping 失效
标题翻译：在研磨过程中减少滑块损坏的方法
公开(公告)号：US07360296B2
公开(公告)日：2008-04-22
申请号：US10957098
申请日：2004-09-30
申请人： Marie-Claire Cyrille , Prakash Kasiraj , Huey-Ming Tzeng
发明人： Marie-Claire Cyrille , Prakash Kasiraj , Huey-Ming Tzeng
IPC分类号： G11B5/187 , B24B1/00
CPC分类号： G11B5/3169 , G11B5/332 , G11B5/3932 , Y10T29/49041 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A process is described for fabricating sliders with reduced lapping damage to the hard-bias materials. The stack of layers for the magnetic sensor is deposited on a wafer and patterned into an initial shape. The hard-bias structures are fabricated at the side of the magnetic sensor as in the prior art. In each of the two described embodiments of the invention, the hard-bias material below the ABS is reduced or removed and replaced with a fill material such as alumina. A first embodiment reduces the hard-bias material below the ABS by forming an extended lapping gap along the ABS in both the sensor and hard-bias material. A second embodiment forms a photoresist mask over the sensor and the portion of the hard-bias/lead structures above the ABS and the exposed hard-bias/lead material below the ABS is thinned or completely removed by milling.
摘要翻译：描述了一种用于制造滑块的方法，减少了对硬偏置材料的研磨损伤。用于磁传感器的层堆叠沉积在晶片上并图案化成初始形状。如现有技术那样，在磁性传感器侧制造硬偏压结构。在本发明的两个所描述的实施例的每一个中，ABS下面的硬偏压材料被减少或移除，并用诸如氧化铝的填充材料代替。第一实施例通过在传感器和硬偏压材料中沿着ABS形成延伸的研磨间隙来减少ABS之下的硬偏置材料。第二实施例在传感器上形成光致抗蚀剂掩模，并且在ABS之上的硬偏置/引线结构的部分以及ABS下方的暴露的硬偏置/引线材料通过研磨被薄化或完全去除。

10. 发明授权

US07072156B2 Method for biasing magnetoresistive sensor with decoupled hard bias multilayers 失效
标题翻译：用去耦硬偏置多层膜偏置磁阻传感器的方法
公开(公告)号：US07072156B2
公开(公告)日：2006-07-04
申请号：US10782628
申请日：2004-02-18
申请人： Marie-Claire Cyrille , Meng Ding , Kuok San Ho , Prakash Kasiraj , Ernesto Marinero , James Lamar Nix
发明人： Marie-Claire Cyrille , Meng Ding , Kuok San Ho , Prakash Kasiraj , Ernesto Marinero , James Lamar Nix
IPC分类号： G11B5/39
CPC分类号： G11B5/3903
摘要： A magnetic sensor is provided, having two bias layers separated by a decoupling layer to eliminate exchange coupling between the bias layers. The two bias layers may have differing coercivities, such that the biases provided by the bias layers to the free layer are independently adjustable. The grain structures of the two bias layers may be substantially decorrelated by the decoupling layer.
摘要翻译：提供了一种磁传感器，其具有由解耦层隔开的两个偏置层，以消除偏置层之间的交换耦合。两个偏置层可以具有不同的矫顽力，使得由偏置层提供给自由层的偏压是独立可调的。两个偏置层的晶粒结构可以通过去耦层基本上去相关。

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