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1. 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。

2. 发明授权

US06967810B2 System and method for writing HDD depending on direction of head skew 有权
公开(公告)号：US06967810B2
公开(公告)日：2005-11-22
申请号：US10674155
申请日：2003-09-29
申请人： Prakash Kasiraj , Mason Lamar Williams
发明人： Prakash Kasiraj , Mason Lamar Williams
IPC分类号： G11B5/02 , G11B5/09 , G11B5/127 , G11B5/55 , G11B5/596
CPC分类号： G11B5/5526 , G11B5/1278
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 an AV file. Tracks may be written in sequence toward or away from the inside diameter (ID) of the disk, depending on their radial location on the disk and the skew of the write element.

3. 发明授权

US06603623B1 Inductive magnetic recording head with impedance matching elements 失效
标题翻译：具有阻抗匹配元件的感应磁记录头
公开(公告)号：US06603623B1
公开(公告)日：2003-08-05
申请号：US09556983
申请日：2000-04-24
申请人： Robert E. Fontana, Jr. , Prakash Kasiraj , Klaassen Berend Klaassen , Mason Lamar Williams
发明人： Robert E. Fontana, Jr. , Prakash Kasiraj , Klaassen Berend Klaassen , Mason Lamar Williams
IPC分类号： G11B502
CPC分类号： G11B5/012 , G11B5/035 , G11B2005/0013
摘要： A method for forming a termination for a magnetic write head in which a magnetic write coil having an inner turn and an outer turn is formed on a wafer. A bottom capacitor plate for a capacitor on the wafer. A resistor having a first terminal and a second terminal is also formed on the wafer. A dielectric layer is formed over the bottom capacitor plate for the capacitor. A top capacitor plate is formed on the dielectric layer. An overpass lead is formed between the inner turn of the coil and one of the bottom capacitor plate and the top capacitor plate. The first terminal of resistor is connected to the capacitor plate that is not connected to the inner turn of the write coil. The second terminal of the resistor is connected to the outer turn of the write coil. An impedance formed by the write coil, the capacitor and the resistor substantially equals a characteristic impedance Z0 of an interconnect circuit that will be connected to the write coil.
摘要翻译：一种用于形成磁写头的终端的方法，其中在晶片上形成具有内转和外转的磁写线圈。用于晶片上的电容器的底部电容器板。具有第一端子和第二端子的电阻器也形成在晶片上。在用于电容器的底部电容器板上形成介电层。在电介质层上形成顶部电容器板。在线圈的内圈与底部电容器板和顶部电容器板之间形成一个立交桥引线。电阻器的第一端子连接到不连接到写入线圈的内圈的电容器板。电阻器的第二端子连接到写入线圈的外圈。由写入线圈，电容器和电阻器形成的阻抗基本上等于将连接到写入线圈的互连电路的特性阻抗Z0。

4. 发明授权

US06259583B1 Laminated yoke head with a domain control element 失效
标题翻译：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。

5. 发明申请

US20110075292A1 LOG-STRUCTURE FILE SYSTEM FOR DISK DRIVES WITH SHINGLED WRITING 有权
标题翻译：带结构写字盘驱动的日志结构文件系统
公开(公告)号：US20110075292A1
公开(公告)日：2011-03-31
申请号：US12959771
申请日：2010-12-03
申请人： Richard M. H. New , Mason Lamar Williams
发明人： Richard M. H. New , Mason Lamar Williams
IPC分类号： G11B5/596
CPC分类号： G06F3/0658 , G06F3/0608 , G06F3/061 , G06F3/0643 , G06F3/0676 , G06F11/1008 , G11B5/012 , G11B5/5526 , G11B27/34
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. One or more contiguous data tracks establish a hand, and a band establishes a respective segment in a log-structured file system.
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。一个或多个相邻的数据轨道建立一个手，并且一个频带在日志结构的文件系统中建立相应的段。

6. 发明授权

US07009812B2 Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield 有权
标题翻译：用于垂直磁记录的磁性传感器，带有后挡板的单刀头
公开(公告)号：US07009812B2
公开(公告)日：2006-03-07
申请号：US10675046
申请日：2003-09-29
申请人： Yimin Hsu , Quang Le , Hin Pong Edward Lee , James Lamar Nix , Aron Pentek , Kurt Rubin , Neil Smith , Nian Xiang Sun , Walter Eugene Weresin , Mason Lamar Williams
发明人： Yimin Hsu , Quang Le , Hin Pong Edward Lee , James Lamar Nix , Aron Pentek , Kurt Rubin , Neil Smith , Nian Xiang Sun , Walter Eugene Weresin , Mason Lamar Williams
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/6005
摘要： The invention is a magnetic transducer with separated read and write heads for perpendicular recording. The write head has a trailing shield that extends from the return pole piece toward the main pole piece to form the write gap at the air-bearing surface. One embodiment of the trailing shield is a two part structure with a pedestal and a much smaller tip that confronts the main pole piece at the gap. In one embodiment a sink of non-magnetic, electrically conductive material is disposed in the separation gap between the read head and the flux bearing pole piece. The sink is preferably made of copper and does not extend to the ABS.
摘要翻译：本发明是具有分离的用于垂直记录的读写头的磁性换能器。写头具有从返回极片向主极片延伸的尾部屏蔽件，以在空气轴承表面形成写入间隙。后挡板的一个实施例是具有基座的两部分结构和在间隙处面对主极片的更小的尖端。在一个实施例中，非磁性导电材料的汇流槽设置在读取头和磁通轴承极片之间的分隔间隙中。水槽优选由铜制成并且不延伸到ABS。

7. 发明授权

US07196871B2 Head for perpendicular recording with a floating trailing shield 有权
标题翻译：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。

8. 发明授权

US5896249A Disk drive with identical top and bottom heads having three side-by-side elements and a common terminal pad 失效
标题翻译：具有相同顶部和底部头部的盘驱动器具有三个并排元件和公共端子垫
公开(公告)号：US5896249A
公开(公告)日：1999-04-20
申请号：US138836
申请日：1998-08-24
申请人： Robert Edward Fontana, Jr. , Steven Robert Hetzler , Hugo Alberto Emilio Santini , Mason Lamar Williams
发明人： Robert Edward Fontana, Jr. , Steven Robert Hetzler , Hugo Alberto Emilio Santini , Mason Lamar Williams
IPC分类号： G11B5/31 , G11B5/39 , G11B5/48 , G11B21/00 , G11B5/60
CPC分类号： G11B5/3967 , G11B21/00 , G11B5/3103 , G11B5/4813 , G11B5/4886 , G11B5/3166 , G11B5/3948
摘要： A magnetic recording disk drive uses side-by-side read/write heads formed on head carriers that are identical for both top and bottom disk surfaces. Thus, a common head carrier functions as a single manufacturable part usable for both top and bottom disk surfaces. The common head carrier has a trailing end with a pattern of components formed on it that includes three side-by-side transducers (two read elements equally spaced about a center write element) and five terminal pads, one of which is a common pad, and all of the electrical connectors interconnecting the five terminal pads with the three transducers. There are only three terminal pads for the two read elements, with one of the read terminal pads being a common terminal pad that is electrically connected to both read elements. During assembly of the disk drive, the common carrier, when used as the top carrier, has a first read terminal pad and the common terminal pad connected to the leads on the suspension. When used as the bottom carrier, the second read terminal pad and the common terminal pad are connected to the leads on the suspension. Thus, only one carrier common to both top and bottom sides of the disk needs to be manufactured. The uniqueness of the top and bottom carriers is obtained by the wiring connection of the read terminal pads to the leads on the suspensions.
摘要翻译：磁记录盘驱动器使用形成在头托架上的并排读/写头，其对于顶盘和底盘表面是相同的。因此，公共的头托架用作可用于顶部和底部盘表面的单个可制造部件。公共头托架具有后端，其上形成有包括三个并排换能器（两个读取元件，围绕中心写入元件等间隔开）的部件图案，以及五个端子焊盘，其中一个是公共焊盘，并且所有电连接器将五个端子焊盘与三个换能器互连。两个读取元件只有三个端子焊盘，其中一个读取端子焊盘是与两个读取元件电连接的公共端子焊盘。在盘驱动器的组装期间，公共载体当用作顶部载体时，具有第一读取端子焊盘，并且公共端子焊盘连接到悬架上的引线。当用作底部载体时，第二读取端子焊盘和公共端子焊盘连接到悬架上的引线。因此，只需要制造一个与磁盘的顶面和底面共同的载体。顶部和底部载体的唯一性是通过将读取的端子焊盘连接到悬架上的引线而获得的。

9. 发明授权

US08108602B2 Log-structured file system for disk drives with shingled writing 有权
标题翻译：磁盘驱动器的日志结构文件系统
公开(公告)号：US08108602B2
公开(公告)日：2012-01-31
申请号：US12959771
申请日：2010-12-03
申请人： Richard M. H. New , Mason Lamar Williams
发明人： Richard M. H. New , Mason Lamar Williams
IPC分类号： G06F12/00
CPC分类号： G06F3/0658 , G06F3/0608 , G06F3/061 , G06F3/0643 , G06F3/0676 , G06F11/1008 , G11B5/012 , G11B5/5526 , G11B27/34
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. One or more contiguous data tracks establish a band, and a band establishes a respective segment in a log-structured file system.
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。一个或多个连续的数据轨道建立一个频带，并且一个频带在日志结构的文件系统中建立相应的段。

10. 发明授权

US5901018A Magnetic tunnel junction magnetoresistive read head with sensing layer as rear flux guide 失效
标题翻译：磁性隧道结磁阻读头，传感层作为后通量引导
公开(公告)号：US5901018A
公开(公告)日：1999-05-04
申请号：US957788
申请日：1997-10-24
申请人： Robert Edward Fontana, Jr. , Stuart Stephen Papworth Parkin , Ching Hwa Tsang , Mason Lamar Williams
发明人： Robert Edward Fontana, Jr. , Stuart Stephen Papworth Parkin , Ching Hwa Tsang , Mason Lamar Williams
IPC分类号： G11B5/39 , G11B5/33
CPC分类号： G11B5/33 , G11B5/332
摘要： A magnetic tunnel junction (MTJ) magnetoresistive read head for a magnetic recording system has the MTJ sensing or free ferromagnetic layer also functioning as a flux guide to direct magnetic flux from the magnetic recording medium to the tunnel junction. The MTJ fixed ferromagnetic layer and the MTJ tunnel barrier layer have their front edges substantially coplanar with the sensing surface of the head. Both the fixed and free ferromagnetic layers are in contact with opposite surfaces of the MTJ tunnel barrier layer but the free ferromagnetic layer extends beyond the back edge of either the tunnel barrier layer or the fixed ferromagnetic layer, whichever back edge is closer to the sensing surface. This assures that the magnetic flux is non-zero in the tunnel junction region. The magnetization direction of the fixed ferromagnetic layer is fixed in a direction generally perpendicular to the sensing surface and thus to the magnetic recording medium, preferably by interfacial exchange coupling with an antiferromagnetic layer. The magnetization direction of the free ferromagnetic layer is aligned in a direction generally parallel to the surface of the medium in the absence of an applied magnetic field and is free to rotate in the presence of applied magnetic fields from the medium. A layer of high coercivity hard magnetic material adjacent the sides of the free ferromagnetic layer longitudinally biases the magnetization of the free ferromagnetic layer in the preferred direction.
摘要翻译：用于磁记录系统的磁隧道结（MTJ）磁阻读取头具有MTJ感测或自由铁磁层，还用作磁通指引，以将磁通量从磁记录介质引导到隧道结。 MTJ固定铁磁层和MTJ隧道阻挡层的前缘基本上与头部的感测表面共面。固定和自由铁磁层都与MTJ隧道势垒层的相对表面接触，但自由铁磁层延伸超过隧道势垒层或固定铁磁层的后边缘，无论哪个后边缘更靠近感测表面。这确保了隧道结区域中的磁通量不为零。固定铁磁层的磁化方向固定在大致垂直于感测表面的方向上，并因此固定在磁记录介质上，优选地通过与反铁磁层的界面交换耦合。在没有施加的磁场的情况下，自由铁磁层的磁化方向在大致平行于介质的表面的方向上对齐，并且在存在来自介质的施加的磁场的情况下自由旋转。邻近自由铁磁层侧面的高矫顽磁性硬磁材料层沿优选方向纵向偏置自由铁磁层的磁化。

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