公开(公告)号：US07688553B1

公开(公告)日：2010-03-30

申请号：US11198000

申请日：2005-08-05

Applicant: Stephen P. Williams ,  Timothy A. Riener ,  Francis P. Crimi ,  Wentao Yan

Inventor： Stephen P. Williams ,  Timothy A. Riener ,  Francis P. Crimi ,  Wentao Yan

IPC: G11B21/20 ,  G11B5/48

CPC classification number: G11B5/4826

Abstract: A disk drive head-gimbal assembly includes a flexure that is modified to address the effects that the operating temperature of the disk drive may have on fly height. Generally, the flexure tongue is split into a leading edge flexure tongue section and a trailing edge flexure tongue section that are separated by a slider decoupling section. The slider decoupling section structurally interconnects the leading and trailing edge flexure tongue section, and further provides a reduced contact area with the slider. This reduced contact limits the ability of the flexure tongue to induce a positive crown on the air bearing surface of the slider.

Abstract translation: 磁盘驱动器头部万向节组件包括被修改以解决磁盘驱动器的工作温度在飞行高度上可能具有的影响的挠曲。 通常，挠曲舌片被分割成由滑块解耦部分隔开的前缘弯曲舌部和后缘弯曲舌部。 滑块解耦部分结构地互连了前缘和后缘弯曲舌部，并且进一步提供了与滑块的减小的接触面积。 这种减小的接触限制了柔性舌片在滑块的空气支承表面上引起正冠的能力。

公开(公告)号：US06775106B1

公开(公告)日：2004-08-10

申请号：US10316368

申请日：2002-12-10

Applicant: Stephen P. Williams ,  C. Douglas Richards ,  Jonathan C. Hofland

Inventor： Stephen P. Williams ,  C. Douglas Richards ,  Jonathan C. Hofland

IPC: G11B2102

CPC classification number: G11B5/5521 ,  G11B5/4813

Abstract: An improved E-block for positioning one or more transducer assemblies proximate one or more rotating storage disks of a disk drive is provided herein. The E-block includes an actuator hub and one or more actuator arms which cantilever away from the actuator hub for holding the transducer assemblies proximate the rotating storage disks. As provided herein, at least one of the actuator arms is a depopulated actuator arm which retains less than two transducer assemblies. Each depopulated actuator arm includes at least one, weighted segment integrally formed into the depopulated actuator arm. Further, each depopulated actuator arm has an arm thickness which is less than an arm thickness for a double head actuator arm. The weighted segment and the reduced arm thickness allow the depopulated actuator arm(s) to vibrate similar to a populated actuator arm(s). This allows the disk drive to be designed and tuned to improve fragility and resonance characteristics of the E-block.

Abstract translation: 本文提供了用于将一个或多个换能器组件靠近磁盘驱动器的一个或多个旋转存储盘定位的改进的E块。 E块包括致动器毂和一个或多个致动器臂，该致动臂悬臂远离致动器毂，用于将换能器组件保持在旋转的存储盘附近。 如本文所提供的，致动器臂中的至少一个是保留少于两个换能器组件的排空致动器臂。 每个经排泄的执行器臂包括至少一个整体形成为排挤的致动器臂的加权段。 此外，每个排空的致动器臂的臂厚度小于双头致动器臂的臂厚度。 加权段和减小的臂厚度允许人口减少的致动器臂类似于一个填充的致动器臂振动。 这样可以设计和调整磁盘驱动器，以提高E块的脆弱性和谐振特性。

公开(公告)号：US06738229B2

公开(公告)日：2004-05-18

申请号：US09752374

申请日：2000-12-29

Applicant: Stephen P. Williams

Inventor： Stephen P. Williams

IPC: G11B558

CPC classification number: G11B5/4886

Abstract: An E-block (20) and head stack assembly (15) for maintaining one or more data transducers (18) proximate one or more rotating storage disks (28) of a disk drive (10) is provided herein. The E-block (20) includes an actuator hub (52) and one or more actuator arms (22). The actuator arms (22) cantilever away from the actuator hub (52) and hold the data transducers (18) proximate the rotating storage disks (28). As provided herein, at least one of the actuator arms (22) has a roll-bias angle (70) over the majority of the length of the actuator arm (22). Moreover, the head stack assembly (15) maintains a suspension assembly (24) at a reduced suspension z-height (72) relative to the storage disk (28). As provided herein, the roll-bias angle (70) of the actuator arms (22) and the reduced suspension z-height (72), each decrease track misregistration.

Abstract translation: 本文提供了用于在磁盘驱动器（10）的一个或多个旋转存储盘（28）附近维持一个或多个数据传感器（18）的E块（20）和磁头组组件（15）。 E块（20）包括致动器毂（52）和一个或多个致动器臂（22）。 致动器臂（22）悬臂离开致动器毂（52）并将数据传感器（18）保持在旋转的存储盘（28）附近。 如本文所提供的，至少一个致动器臂（22）在致动器臂（22）的大部分长度上具有辊偏角（70）。 此外，头部堆叠组件（15）相对于存储盘（28）将悬挂组件（24）保持在减小的悬架z-高度（72）。 如本文所提供的，致动器臂（22）的辊偏角（70）和减小的悬架z-高度（72）各自减小轨迹重合。

公开(公告)号：US6104572A

公开(公告)日：2000-08-15

申请号：US937566

申请日：1997-09-25

Applicant: Stephen P. Williams ,  Timothy A. Riener

Inventor： Stephen P. Williams ,  Timothy A. Riener

IPC: G11B5/48 ,  G11B21/21 ,  G11B5/49

CPC classification number: G11B21/21 ,  G11B5/4833

Abstract: An improved suspension for supporting a read/write head adjacent to a relatively moving storage medium in a disk drive is disclosed. The suspension includes a curved loadbeam or a curved flexure that reduces the magnitude of the gain in the first torsion resonant mode of oscillation when the Z-height of the loadbeam is configured for minimum sensitivity of the first torsion gain as a function the loadbeam Z-height, thereby providing a suspension capable of providing improved head position servo performance and improved manufacturing and assembly yields.

Abstract translation: 公开了用于支持与磁盘驱动器中相对移动的存储介质相邻的读/写头的改进的悬架。 悬架包括弯曲载荷波束或弯曲挠曲，当将负载波束的Z高度配置为第一扭转增益的最小灵敏度时，减小第一扭转谐振振荡模式中的增益的幅度作为负载波束Z- 高度，从而提供能够提供改进的头位置伺服性能和改进的制造和组装产量的悬架。

公开(公告)号：US5657187A

公开(公告)日：1997-08-12

申请号：US567622

申请日：1995-12-05

Applicant: Michael R. Hatch ,  Stephen P. Williams ,  Jwo-Min Wang

Inventor： Michael R. Hatch ,  Stephen P. Williams ,  Jwo-Min Wang

IPC: G11B5/60 ,  G11B5/48 ,  G11B21/21

CPC classification number: G11B5/4833 ,  G11B5/4826 ,  Y10S72/702 ,  Y10T29/49025 ,  Y10T29/49036

Abstract: An optimized bump and offset along the spring section of a load beam of a head-gimbal assembly ("HGA") in the loaded state redistributes the mass and stiffness distributions of the load beam from a truly flat state, so that the mode shape of the first torsional resonance mode is changed such that the coupling between a drive actuator head arm and the head slider is essentially eliminated. A fabrication method to produce the desired bump and offset, and a characterization method to ascertain that optimized bump and offset parameters have been achieved are also disclosed. By optimizing bump and offset, the slider remains independent from any load beam first torsional vibration even at resonance and/or sway mode resonant frequency of the HGA may be increased.

Abstract translation: 在负载状态下，头部万向节组件（“HGA”）的负载梁的弹簧部分的优化的凸起和偏移将负载梁的质量和刚度分布从真实平坦状态重新分布，使得模型形状 改变第一扭转共振模式，从而基本上消除了驱动致动器头部臂和头部滑块之间的联接。 还公开了产生所需凸块和偏移的制造方法以及用于确定已经实现优化的凸块和偏移参数的表征方法。 通过优化凸块和偏移，即使在谐振和/或摆动模式下，滑块仍然独立于任何负载梁的第一扭转振动，HGA的谐振频率可能会增加。

公开(公告)号：US5515212A

公开(公告)日：1996-05-07

申请号：US111778

申请日：1993-08-25

Applicant: James Chiao ,  Jimmy D. Godwin ,  Alton B. Otis, Jr. ,  Andrew M. Rose ,  Roger O. Williams ,  Stephen P. Williams ,  Mark E. Strysko

Inventor： James Chiao ,  Jimmy D. Godwin ,  Alton B. Otis, Jr. ,  Andrew M. Rose ,  Roger O. Williams ,  Stephen P. Williams ,  Mark E. Strysko

IPC: G11B5/596 ,  G11B20/12 ,  G11B20/18 ,  G11B21/10 ,  G11B27/30 ,  G11B27/32

CPC classification number: G11B20/1866 ,  G11B20/1252 ,  G11B27/3027 ,  G11B27/329 ,  G11B5/59677 ,  G11B2020/1087 ,  G11B2220/2512

Abstract: A diskette comprising a jacket, a liner material disposed within said jacket, a flat circular media having a magnetic coating on both sides disposed within said liner material, a hub attached at the center of said media, a plurality of servo grooves on at least one of said sides of said media that have stitched patterns that will alternate on-and-off at twenty kilohertz in the presence of a constant, unmodulated light source. The diskette is magnetically formatted with reference and data tracks recorded in such a way that extremely accurate position determinations can be made by looking at the analog amplitude of the detected tracks and comparing them at different head positions. The innermost tracks contain redundant copies of a disk mapping table that comprises data for a media type code, a sector size code, a sector interleave code, a total track count, a reassignment area starting address, a data area starting address, a total sector count, an update count, and a reassignment table having at least room for 250 entries of three bytes each.

Abstract translation: 一种软盘，包括夹套，设置在所述护套中的衬垫材料，平坦的圆形介质，其两侧上设置有磁性涂层，设置在所述衬垫材料内;安装在所述介质中心的毂;至少一个 所述介质的所述侧面，在存在恒定的未调制的光源的情况下，其缝合图案将在二十千赫兹交替地开启和关闭。 磁盘被磁格式化，其参考和数据轨迹以这样的方式记录，即通过观察检测到的轨迹的模拟幅度并在不同的头部位置进行比较，可以进行非常精确的位置确定。 最内侧的轨道包含盘映射表的冗余副本，该盘映射表包括用于媒体类型码，扇区大小码，扇区交织码，总轨迹数，数据区起始地址，数据区起始地址，总扇区 计数，更新计数和重新分配表，其具有至少有250个条目的空间，每个条目为三个字节。

公开(公告)号：US5415733A

公开(公告)日：1995-05-16

申请号：US68417

申请日：1993-05-27

Applicant: Peter M. Robinson ,  Stephen P. Williams ,  Thomas F. Skaar ,  Hideaki Urushibata

Inventor： Peter M. Robinson ,  Stephen P. Williams ,  Thomas F. Skaar ,  Hideaki Urushibata

IPC: D21C5/02

CPC classification number: D21C5/025 ,  D21C5/027 ,  Y02W30/648

Abstract: The removal of inks, particularly hydrophilic flexographic inks, from a pulp fiber slurry is accomplished by use of a combination of (a) a non-ionic surfactant; (b) a fatty acid or salt thereof; and (c) a water-soluble cationic polymer having a molecular weight less than about 1,000,000 daltons, particularly a polymer derived from the reaction of epichlorohydrin and at least one diamine or the polymerization of aziridine.

Abstract translation: 通过使用（a）非离子表面活性剂的组合来实现从纸浆纤维浆料中去除油墨，特别是亲水性柔性油墨。 （b）脂肪酸或其盐; 和（c）分子量小于约1,000,000道尔顿的水溶性阳离子聚合物，特别是衍生自表氯醇和至少一种二胺的反应的聚合物或氮丙啶的聚合。

公开(公告)号：US5067039A

公开(公告)日：1991-11-19

申请号：US424658

申请日：1989-10-20

Applicant: Jimmy D. Godwin ,  Stephen P. Williams

Inventor： Jimmy D. Godwin ,  Stephen P. Williams

IPC: G11B21/10 ,  G11B5/584 ,  G11B5/596 ,  G11B5/74 ,  G11B5/82 ,  G11B5/84 ,  G11B13/04 ,  G11B23/30

CPC classification number: G11B5/59677 ,  G11B23/30 ,  G11B5/584 ,  G11B5/74 ,  G11B5/825 ,  G11B5/84

Abstract: A flexible magnetic medium having a plurality of optical servo tracks indelibly marked on the medium and a method for stamping the tracks on the medium. The optical servo tracks comprise a plurality of circular concentric regions positioned on a face of a floppy disk with each circular region comprising a plurality of pits. The optical servo tracks are imprinted on the floppy disk by placing a stamper disk bearing a template of the optical servo tracks in a hydraulic press and pressing the stamper disk and floppy disk together, typically under five to nine tons per square inch of pressure.

公开(公告)号：US4961123A

公开(公告)日：1990-10-02

申请号：US202719

申请日：1988-06-03

Applicant: Roger O. Williams ,  Milton C. Kurtz ,  Jimmy D. Godwin ,  Stephen P. Williams ,  Gregory K. Roberts

Inventor： Roger O. Williams ,  Milton C. Kurtz ,  Jimmy D. Godwin ,  Stephen P. Williams ,  Gregory K. Roberts

IPC: G11B5/58 ,  G11B5/584 ,  G11B5/596 ,  G11B5/82 ,  G11B21/10

CPC classification number: G11B5/82 ,  G11B5/58 ,  G11B5/584 ,  G11B5/59677

Abstract: A magnetic information storage medium, such as a floppy or rigid magnetic disk having a plurality of indelible grooves inscribed on a surface of the medium to function as optical servo tracks. The grooves can be in the form of a plurality of continuous or noncontinuous concentric circles. The grooves can also be a continuous spiral or a plurality of continuous concentric circles having non-constant widths and/or depths.

公开(公告)号：US6038102A

公开(公告)日：2000-03-14

申请号：US784559

申请日：1997-01-21

Applicant: Arun Balakrishnan ,  Stephen P. Williams

Inventor： Arun Balakrishnan ,  Stephen P. Williams

IPC: G11B5/48 ,  G11B21/00

CPC classification number: G11B5/4853 ,  G11B21/00 ,  G11B5/486 ,  G11B5/484

Abstract: A trace conductor array includes an electrically insulative support substrate and a plurality of electrical signal trace conductors formed along substantially parallel paths in a single layer on the substrate. The electrical signal trace conductors each have a plurality of spaced apart trace conductor segments. Passive electrical trace conductors are formed on the substrate in spaces between the spaced apart adjacent trace conductor segments, and are spaced apart and electrically isolated therefrom. The passive trace conductors generally follow a geometry of the spaced apart segments and thereby repel magnetic flux lines at higher frequencies and result in decoupling of the high frequency current-carrying conductor trace segments. A preferred application is for interconnecting a head and a preamplifier/drive circuit within a hard disk drive.

Abstract translation: 轨迹导体阵列包括电绝缘支撑衬底和沿衬底上单层中的基本平行路径形成的多个电信号迹线导体。 电信号迹线导体各自具有多个间隔开的迹线导体段。 无源电迹线导体在间隔开的相邻迹线导体段之间的空间中形成在衬底上，并且与其隔开并与之电绝缘。 无源迹线导体通常遵循间隔开的段的几何形状，从而以更高的频率排斥磁通线，并导致高频载流导体迹线段的去耦。 优选的应用是将磁头和前置放大器/驱动电路互连在硬盘驱动器内。