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1. 发明授权

US5949612A Low friction sliding hard disk drive system 失效
标题翻译：低摩擦滑动硬盘驱动系统
公开(公告)号：US5949612A
公开(公告)日：1999-09-07
申请号：US515140
申请日：1995-08-15
申请人： Christopher S. Gudeman , Michael H. Azarian , Michael A. Baldwinson , Keith R. Berding , Kaynam Chun , Garrett A. Garrettson , Harold J. Hamilton , Robert D. Hempstead , Dimitre A. Latev , Mark A. Lauer
发明人： Christopher S. Gudeman , Michael H. Azarian , Michael A. Baldwinson , Keith R. Berding , Kaynam Chun , Garrett A. Garrettson , Harold J. Hamilton , Robert D. Hempstead , Dimitre A. Latev , Mark A. Lauer
IPC分类号： G11B5/31 , G11B5/73 , G11B5/84 , B05D5/12
CPC分类号： G11B5/72 , G11B5/3106 , G11B5/7325 , G11B5/8404 , Y10S428/90
摘要： A operationally contacting hard disk drive system has reduced friction due to lower capillary adhesion between the disk surface and a transducer in a substantially continuous sliding relationship with the surface. The disk surface has an adhesion-reducing texture that includes a microscopic RMS roughness in a range between about 1.5 and 5.5 nanometers, or a number of asperities having a mean plane to peak height in a range between about 6 and 50 nanometers. The roughness may increase in a radially graded fashion to compensate for the increased linear velocity and concomitant frictional power loss near the outer diameter of the disk. It is important that the uppermost reaches of the textured surface are smooth but not flat in order to obtain lasting low friction operation, which is accomplished by constructing the surface with a highest approximately one percent having an average radius of curvature in a range between 2 microns and 100 microns. An area of the slider in apparent contact with the disk surface is preferably less than 1000 square microns, and a ratio between this nominal area and the mean to peak height is less than 0.3 meters. The slider may also include a substantial thickness of partially wetting material in contact with the disk, or may alternatively be textured with deep grooves or materials having differing wear rates, in order to provide reduced frictional adhesion despite wear of the slider.
摘要翻译：操作上接触的硬盘驱动系统由于在与表面基本上连续的滑动关系中的盘表面和换能器之间较低的毛细管粘附力而减少了摩擦。盘表面具有减粘纹理，其包括在约1.5和5.5纳米之间的范围内的微观RMS粗糙度，或者具有在约6和50纳米之间的范围内的平均平面至峰高的数量的凹凸。粗糙度可以以径向渐变的方式增加，以补偿在盘的外径附近的增加的线速度和伴随的摩擦功率损耗。重要的是纹理表面的最上层是光滑的而不是平坦的，以便获得持久的低摩擦操作，这是通过将平均曲率半径在2微米之间的范围内构造最高约百分之一的表面来实现的和100微米。与盘表面明显接触的滑块的面积优选地小于1000平方微米，并且该标称面积与平均高峰之间的比例小于0.3米。滑块还可以包括与盘相接触的部分润湿材料的相当厚度，或者可替代地使用具有不同磨损率的深沟槽或材料进行纹理化，以便尽管滑块的磨损来提供降低的摩擦粘附。

2. 发明授权

US06804085B1 Hard drive system interface between a disk surface and a transducer contacting the surface during communication 失效
标题翻译：在通信期间，磁盘表面和与表面接触的传感器之间的硬盘驱动器系统接口
公开(公告)号：US06804085B1
公开(公告)日：2004-10-12
申请号：US08408036
申请日：1995-03-21
申请人： Michael H. Azarian , Michael A. Baldwinson , Keith R. Berding , Kaynam Chun , Garrett A. Garrettson , Christopher S. Gudeman , Harold J. Hamilton , Anthony A. Jarrami , Shinichi M. Tanaka
发明人： Michael H. Azarian , Michael A. Baldwinson , Keith R. Berding , Kaynam Chun , Garrett A. Garrettson , Christopher S. Gudeman , Harold J. Hamilton , Anthony A. Jarrami , Shinichi M. Tanaka
IPC分类号： G11B582
CPC分类号： G11B5/7325 , G11B5/3106 , G11B5/8404 , Y10T428/24355
摘要： An electromagnetic read/write system includes a contact interface formed by a pole-structure-carrying wear pad and a recording surface. The uppermost portion of the recording surface is characterized by a buffed, generally planarized topography. Lower elevations of the recording surface may be texturized or untexturized. Various methods of producing such an interface are described. The interface of the present invention provides dramatically improved longevity, i.e, wear performance through long term read/write operation.
摘要翻译：一种电磁读/写系统包括由极结构承载耐磨垫和记录表面形成的接触界面。记录表面的最上部分的特征在于抛光的，通常为平面的形貌。记录表面的较低高度可以是纹理化的或未被变形的。描述了生产这种界面的各种方法。本发明的界面提供了显着改善的寿命，即通过长期读/写操作的磨损性能。

3. 发明授权

US06493191B1 Planar magnetic ring head for contact recording with a rigid disk 失效
标题翻译：平面磁环头，用于与刚性盘接触记录
公开(公告)号：US06493191B1
公开(公告)日：2002-12-10
申请号：US08528890
申请日：1995-09-15
申请人： William C. Cain , Richard D. Anderson , Michael A. Baldwinson , Keith R. Berding , Michael E. Devillier , Garrett A. Garrettson , Randolph S. Gluck , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Kwang K. Kim , Dimitre A. Latev , Alexander P. Payne , David D. Roberts
发明人： William C. Cain , Richard D. Anderson , Michael A. Baldwinson , Keith R. Berding , Michael E. Devillier , Garrett A. Garrettson , Randolph S. Gluck , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Kwang K. Kim , Dimitre A. Latev , Alexander P. Payne , David D. Roberts
IPC分类号： G11B5187
CPC分类号： G11B5/3163 , G11B5/3106 , G11B5/3183
摘要： A transducer for a hard disk drive system has a planar magnetic core and a pair of poletips that project transversely from the core for sliding contact with the disk during reading and writing. The transducer is formed entirely of thin films in the shape of a low profile table having three legs that slide on the disk, the poletips being exposed at a bottom of one of the legs for high resolution communication with the disk, the throat height of the poletips affording sufficient tolerance to allow for wear. The legs elevate the transducer from the disk sufficiently to minimize lifting by a thin air layer that moves with the spinning disk which, in combination with the small size of the thin film head allows a low load and a flexible beam and gimbal to hold the transducer to the disk. The transducer includes a loop shaped core of magnetic material that ends at the poletips, the core extending further parallel than perpendicular to the disk surface and preferably being formed of a plurality of slightly spaced ribbons of magnetic material in order to increase high frequency permeance. A high magnetic saturation layer may be formed adjoining the gap in at least the trailing poletip, in order to avoid saturation at the poletips during writing. The dimensions of the yoke adjacent to the poletips are also designed to avoid saturation at the poletips by saturating at a lower flux in the yoke than the poletips. The close relationship between the transducer and the media of the disk affords high density magnetic data storage and retrieval.
摘要翻译：用于硬盘驱动系统的换能器具有平面磁芯和一对从芯体横向突出的小纸片，用于在读写期间与盘滑动接触。传感器完全由薄板形成，其具有在盘上滑动的三条腿的小型表，其中一条腿露出在一条腿的底部，用于与盘的高分辨率通信，喉部的高度小腿提供足够的耐受性以允许磨损。这些腿将传感器从盘上提升到足以最小化由旋转盘移动的薄空气层的提升，其与小尺寸的薄膜头允许低负载并且柔性梁和万向节保持换能器到磁盘。换能器包括磁性材料的环形磁芯，其在端部终止，芯体比垂直于磁盘表面进一步平行延伸，并且优选地由多个稍微间隔的磁性材料带形成，以便增加高频磁导率。至少可以在至少尾部poletip中形成邻接间隙的高磁饱和层，以避免写入期间在poletips处的饱和。靠近小翼片的轭的尺寸也被设计成通过在轭中的低通量饱和而不是poletips饱和。传感器与磁盘介质之间的紧密关系提供了高密度的磁数据存储和检索。

4. 发明授权

US06212047B1 Hard disk drive with magnetoresistive head and perpendicular media 失效
标题翻译：具有磁阻头和垂直介质的硬盘驱动器
公开(公告)号：US06212047B1
公开(公告)日：2001-04-03
申请号：US08771468
申请日：1996-12-20
申请人： Alexander P. Payne , William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev , Mark A. Lauer , David D. Roberts
发明人： Alexander P. Payne , William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev , Mark A. Lauer , David D. Roberts
IPC分类号： G11B539
CPC分类号： G11B5/6005 , G11B5/1278 , G11B5/3106 , G11B5/3176 , G11B5/3183 , G11B5/3967 , G11B5/6076
摘要： An information storage system having a ring head in such close proximity to a rigid magnetic storage disk that the magnetic field felt by the media layer or layers of the disk has a larger perpendicular than longitudinal component so that data is stored in a perpendicular mode. Reading of data is accomplished with a magnetoresistive sensor which may be coupled to the magnetically permeable core of the ring head far from the poletips, which may contact the disk. The media preferably has a high perpendicular anisotropy, and may be formed in a plurality of films with crystalline structures traversing the films.
摘要翻译：一种信息存储系统，其具有如此靠近刚性磁存储盘的环形头，所述刚性磁存储盘使得所述介质层感觉到的磁场或所述盘的层具有比纵向分量更大的垂直于垂直模式的数据。数据读取是通过一个磁阻传感器实现的，该磁阻传感器可耦合到远离可以接触磁盘的引脚的环形头部的导磁芯。介质优选具有高垂直各向异性，并且可以形成为具有穿过膜的结晶结构的多个膜。

5. 发明授权

US06320725B1 Hard disk drive having ring head with predominantly perpendicular media fields 失效
标题翻译：具有环形头的硬盘驱动器，主要具有垂直的介质场
公开(公告)号：US06320725B1
公开(公告)日：2001-11-20
申请号：US08577493
申请日：1995-12-22
申请人： Alexander P. Payne , William C. Cain , Michael E. DeVillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Mark A. Lauer , Dimitre A. Latev , David D. Roberts
发明人： Alexander P. Payne , William C. Cain , Michael E. DeVillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Mark A. Lauer , Dimitre A. Latev , David D. Roberts
IPC分类号： G11B5127
CPC分类号： G11B5/6005 , G11B5/1278 , G11B5/3106 , G11B5/3176 , G11B5/3183 , G11B5/3967 , G11B5/6076
摘要： An information storage system having a ring head sliding on a rigid magnetic storage disk in such close proximity that the magnetic field felt by the media layer or layers of the disk has a larger perpendicular than longitudinal component so that data is stored in a perpendicular mode. The head to media separation during writing of data to the media is a small fraction of the amagnetic gap separating the poletips of the head. Reading of data may be inductive or may be via a magnetoresistive sensor which is coupled to the magnetically permeable core of the ring head far from the poletips. The media preferably has a high perpendicular anisotropy.
摘要翻译：一种信息存储系统，其具有在刚性磁存储盘上滑动的环形头，所述环形头在所述介质层或所述盘的层中感觉到的磁场具有比纵向分量更大的垂直于垂直模式的数据。在向媒体写入数据期间的媒体分离的头部是分离头部poletips的磁性间隙的一小部分。数据的读取可以是感性的，或者可以是经由磁阻传感器，该磁阻传感器耦合到远离耳环的环形头的导磁芯。介质优选具有高垂直各向异性。

6. 发明授权

US06198607B1 Contact planar magnetoresistive head 失效
标题翻译：接触平面磁阻头
公开(公告)号：US06198607B1
公开(公告)日：2001-03-06
申请号：US08725296
申请日：1996-10-02
申请人： William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev
发明人： William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev
IPC分类号： G11B539
CPC分类号： G11B5/6005 , G11B5/1278 , G11B5/3176 , G11B5/3183 , G11B5/39 , G11B5/3967 , G11B5/40 , G11B5/484 , G11B21/02
摘要： A hard disk drive head operates in close proximity and dynamic contact with a rapidly spinning rigid disk surface, the head including a transducer with a magnetically permeable path between a poletip disposed adjacent to the disk surface and a magnetoresistive (MR) sensor situated outside the range of thermal noise generated by the surface contact. The magnetically permeable path is the same as that used to write data to the disk, eliminating errors that occur in conventional transducers having MR sensors at a separate location from the writing poletips. Moreover, the magnetically permeable path is preferably formed in a low profile, highly efficient “planar” loop that allows for manufacturing tolerances in throat height and wear of the terminal poletips from disk contact without poletip saturation or poletip smearing. The MR layer is formed in one of the first manufacturing steps atop the substrate, so that the MR layer has a relatively uniform planar template that is free from contaminants. A preferred embodiment has a laminated yoke for improved high frequency efficiency, with the MR element situated between the yoke lamina for improved sensitivity.
摘要翻译：一个硬盘驱动器头靠近并与快速旋转的刚性盘表面动态接触，该头部包括一个换能器，该传感器具有一个位于邻近磁盘表面的poletip之间的磁导通路径，以及位于该范围外的磁阻（MR）传感器由表面接触产生的热噪声。导磁通路与用于将数据写入磁盘的磁导通路径相同，消除了在与写入引脚分开的位置处具有MR传感器的常规传感器中发生的错误。此外，磁导通路优选地形成为低轮廓，高效的“平面”环路，其允许制造喉部高度的公差和终端小弹簧从盘接触的磨损，而不会引起耳波饱和或poletip拖尾。 MR层在基板顶部的第一制造步骤之一中形成，使得MR层具有不含污染物的相对均匀的平面模板。优选实施例具有用于提高高频效率的层叠轭，MR元件位于轭层之间，以提高灵敏度。

7. 发明授权

US07095585B2 Hard disk drive for perpendicular recording with transducer having submicron gap between pole tips 有权
公开(公告)号：US07095585B2
公开(公告)日：2006-08-22
申请号：US10970782
申请日：2004-10-20
申请人： Alexander P. Payne , William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev , David D. Roberts
发明人： Alexander P. Payne , William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev , David D. Roberts
IPC分类号： G11B5/147 , G11B5/235
CPC分类号： G11B5/6005 , G11B5/1278 , G11B5/3106 , G11B5/3176 , G11B5/3183 , G11B5/3967 , G11B5/6076
摘要： An information storage system includes a transducer having a loop of ferromagnetic material with pole tips separated by an nonferromagnetic gap located adjacent to a medium such as a rigid disk. During writing the separation between the pole tips and the media layer of the disk is a small fraction of the gap separation. Due to the small separation between the pole tips and the media layer, the magnetic field generated by the transducer and felt by the media has a larger perpendicular than longitudinal component, favoring perpendicular recording over longitudinal recording. The media may have an easy axis of magnetization oriented substantially along the perpendicular direction, so that perpendicular data storage is energetically favored. The transducer may also include a magnetoresistive sensor for reading magnetic information from the disk.

8. 发明授权

US06535361B2 Contact planar magnetoresistive head 失效
标题翻译：接触平面磁阻头
公开(公告)号：US06535361B2
公开(公告)日：2003-03-18
申请号：US09795954
申请日：2001-02-28
申请人： William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev
发明人： William C. Cain , Michael E. Devillier , Harold J. Hamilton , Robert D. Hempstead , Darren T. Imai , Dimitre A. Latev
IPC分类号： G11B539
CPC分类号： G11B5/6005 , G11B5/1278 , G11B5/3176 , G11B5/3183 , G11B5/39 , G11B5/3967 , G11B5/40 , G11B5/484 , G11B21/02
摘要： A hard disk drive head operates in close proximity and dynamic contact with a rapidly spinning rigid disk surface, the head including a transducer with a magnetically permeable path between a poletip disposed adjacent to the disk surface and a magnetoresistive (MR) sensor situated outside the range of thermal noise generated by the surface contact. The magnetically permeable path is the same as that used to write data to the disk, eliminating errors that occur in conventional transducers having MR sensors at a separate location from the writing poletips. Moreover, the magnetically permeable path is preferably formed in a low profile, highly efficient “planar” loop that allows for manufacturing tolerances in throat height and wear of the terminal poletips from disk contact without poletip saturation or poletip smearing. The MR layer is formed in one of the first manufacturing steps atop the substrate, so that the MR layer has a relatively uniform planar template that is free from contaminants. A preferred embodiment has a laminated yoke for improved high frequency efficiency, with the MR element situated between the yoke lamina for improved sensitivity.
摘要翻译：一个硬盘驱动器头靠近并与快速旋转的刚性盘表面动态接触，该头部包括一个换能器，该传感器具有一个位于邻近磁盘表面的poletip之间的磁导通路径，以及位于该范围外的磁阻（MR）传感器由表面接触产生的热噪声。导磁通路与用于将数据写入磁盘的磁导通路径相同，消除了在与写入引脚分开的位置处具有MR传感器的常规传感器中发生的错误。此外，磁导通路优选地形成为低轮廓，高效的“平面”环路，其允许制造喉部高度的公差和终端小弹簧从盘接触的磨损，而不会引起耳波饱和或poletip拖尾。 MR层在基板顶部的第一制造步骤之一中形成，使得MR层具有不含污染物的相对均匀的平面模板。优选实施例具有用于提高高频效率的层叠轭，MR元件位于轭层之间，以提高灵敏度。

9. 发明授权

US06600631B1 Transducer/flexure/conductor structure for electromagnetic read/write system 失效
标题翻译：用于电磁读/写系统的传感器/弯曲/导体结构
公开(公告)号：US06600631B1
公开(公告)日：2003-07-29
申请号：US08338394
申请日：1994-11-14
申请人： Keith R. Berding , Michael A. Baldwinson , Harold J. Hamilton , Timothy W. Martin
发明人： Keith R. Berding , Michael A. Baldwinson , Harold J. Hamilton , Timothy W. Martin
IPC分类号： G11B548
CPC分类号： G11B5/105 , G11B5/4886 , G11B21/22
摘要： Flexure/transducer structure employable in an electromagnetic information storage and retrieval system wherein mechanical load-bearing responsibilities and electrical-current-carrying responsibilities are merged into and shared by common structure. The invention subject matter is useable in systems characterized by contact operation, as well as by quasi-contact and noncontact operations, in relation to the recording surface in an information recording medium.
摘要翻译：可用于电磁信息存储和检索系统中的挠曲/换能器结构，其中机械承载责任和电流承载责任被合并到共同结构中并由其共享。本发明的主题可用于以信息记录介质中的记录表面为特征的接触操作以及准接触和非接触操作的系统。

10. 发明授权

US5885131A Interactive device for lapping transducers 失效
标题翻译：用于研磨传感器的交互式设备
公开(公告)号：US5885131A
公开(公告)日：1999-03-23
申请号：US861997
申请日：1997-05-24
申请人： Michael H. Azarian , Michael A. Baldwinson , David T. Gutowski , Harold J. Hamilton , James P. Hennessy , Mark W. Parcher , Kenneth K. H. Tang
发明人： Michael H. Azarian , Michael A. Baldwinson , David T. Gutowski , Harold J. Hamilton , James P. Hennessy , Mark W. Parcher , Kenneth K. H. Tang
IPC分类号： B24B7/00 , B24B7/16 , B24B19/16 , B24B37/00 , B24B49/00 , B24B49/04 , G11B5/10 , G11B5/187 , G11B5/31 , G11B5/455 , G11B21/00 , G11B21/21 , G11B33/10 , B24B49/02 , B24B49/10
CPC分类号： B24B37/048 , B24B19/16 , B24B37/00 , B24B49/00 , B24B49/045 , B24B7/00 , B24B7/16 , G11B21/00 , G11B21/21 , G11B33/10 , G11B5/10 , G11B5/1871 , G11B5/3106 , G11B5/455 , G11B5/3166 , Y10T29/49034 , Y10T29/49041 , Y10T29/49048
摘要： An interactive device for lapping transducers has a body with an abrasive surface that communicates with the transducers in order to provide information for controlling the lapping and testing the transducers. The lapping body is preferably shaped as a disk, drum or tape, and communicates with the transducer using a type of signal that the transducer is designed to read and/or write. Thus for lapping a magnetic head or slider to be employed in a hard disk drive, the lapping body contains a magnetic medium layer that is either prerecorded or written by the head during lapping, while the signal received by the head is monitored and analyzed by a processor in order to determine, in part, when to terminate lapping. A series of transducers can be simultaneously lapped while individually monitored, so that each transducer can be removed from the lapping body individually upon receipt of a signal indicating that transducer has been lapped an optimal amount. Transducers for employment in drive systems can also be tested for performance characteristics by utilizing lapping bodies having surface characteristics similar to those found in the drive system.
摘要翻译：用于研磨传感器的交互式装置具有与传感器通信的研磨表面的主体，以便提供用于控制研磨和测试换能器的信息。研磨体优选地成形为盘，鼓或带，并且使用换能器被设计为读取和/或写入的信号的类型与换能器通信。因此，为研磨在硬盘驱动器中使用的磁头或滑块，研磨体包含在研磨期间由磁头预先记录或写入的磁性介质层，而由磁头接收的信号被监测和分析处理器为了确定，在一定程度上终止研磨。一系列传感器可以在单独监控的同时进行研磨，从而每个传感器可以在接收到指示传感器已经被研磨成最佳量的信号时，从研磨体单独移除。还可以通过利用具有与驱动系统中相似的表面特征的研磨体来测试驱动系统中使用的传感器的性能特征。

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