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1. 发明授权

US06310750B1 Disk drive actuator arm with microactuated read/write head positioning 有权
标题翻译：磁盘驱动器执行器臂，具有微动读/写头定位
公开(公告)号：US06310750B1
公开(公告)日：2001-10-30
申请号：US09421995
申请日：1999-10-20
申请人： Muhammad A. Hawwa , Jamshid Bozorgi
发明人： Muhammad A. Hawwa , Jamshid Bozorgi
IPC分类号： G11B556
CPC分类号： G11B5/5556
摘要： The present invention is embodied in an actuator arm which is mounted to a primary actuator. The primary actuator positions the actuator arm, with a read/write head mounted to the actuator arm, across a data storage disk. The actuator arm comprises an inboard portion, an outboard portion and a pair of bimorph actuators. The inboard portion has a longitudinal axis and is attached to the primary actuator. The outboard portion has the read/write head mounted onto it. The pair of bimorph actuators are deflectable together in a common direction and are connected between the inboard and the outboard portions. Upon deflection of the bimorph actuators in the same direction, the outboard portion is translated along an at least nearly straight line transverse to the longitudinal axis of the inboard portion. This transverse motion allows the read/write head to be kept substantially within a plane parallel to the surface of the data storage disk, preventing damage caused by possible contact between slider and the disk surface from rolling the slider due to out-of-plane motions. Further, the use of bimorph actuators provide increased displacements of the read/write head. Also, since the head displacement is not a function of microactuator's position along the actuator arm, the actuator arm can be shorter, allowing for use in compact disk drives.
摘要翻译：本发明体现在安装到主致动器上的致动器臂中。主执行器将执行器臂定位在读/写头安装到致动器臂上的数据存储盘上。致动器臂包括内侧部分，外侧部分和一对双压电晶片致动器。内侧部分具有纵向轴线并且附接到主致动器。外侧部分具有安装在其上的读/写头。一对双压电晶片致动器在共同的方向上可偏转在一起，并且连接在内侧和外侧部分之间。当双向压电致动器在相同方向上偏转时，外侧部分沿着横向于内侧部分的纵向轴线的至少几乎直线平移。这种横向运动允许读/写头基本上保持在与数据存储盘的表面平行的平面内，防止由于平面外的运动而使滑块和盘表面之间的可能的接触滚动滑块所引起的损坏。此外，双压电晶片致动器的使用提供了读/写头的增加的位移。此外，由于头位移不是微致动器沿着致动器臂的位置的函数，所以致动器臂可以更短，允许在紧凑的磁盘驱动器中使用。

2. 发明授权

US06717773B2 Airflow assisted ramp loading and unloading of sliders in hard disk drives 失效
公开(公告)号：US06717773B2
公开(公告)日：2004-04-06
申请号：US10178582
申请日：2002-06-24
申请人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
发明人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
IPC分类号： G11B2112
CPC分类号： G11B5/54 , G11B21/12 , G11B21/22
摘要： Windage proximate to a spinning disk within a disk drive is directed through a plurality of apertures in a ramp situated near the outside diameter of the disk. A tab extending from a load beam that supports a slider rests on the ramp when the drive is not in use. When the drive is started the disk begins to spin and an actuator moves the load beam to bring the slider over the surface of the disk. As the load beam moves, the tab is guided along the ramp and cushioned by the air flow emerging from apertures in the ramp beneath it. When the drive is stopped the actuator brings the load beam back so that the tab engages the ramp. A cushion of air is again provided as the tab is moved along the ramp as the tab is returned to a parked position.

3. 发明授权

US06437945B1 Airflow assisted ramp loading and unloading of sliders in hard disk drives 有权
标题翻译：气流辅助斜盘加载和卸载硬盘驱动器中的滑块
公开(公告)号：US06437945B1
公开(公告)日：2002-08-20
申请号：US09473506
申请日：1999-12-28
申请人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
发明人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
IPC分类号： G11B2112
CPC分类号： G11B5/54 , G11B21/12 , G11B21/22
摘要： Windage proximate to a spinning disk within a disk drive is directed through a plurality of apertures in a ramp situated near the outside diameter of the disk. A tab extending from a load beam that supports a slider rests on the ramp when the drive is not in use. When the drive is started the disk begins to spin and an actuator moves the load beam to bring the slider over the surface of the disk. As the load beam moves, the tab is guided along the ramp and cushioned by the air flow emerging from apertures in the ramp beneath it. When the drive is stopped the actuator brings the load beam back so that the tab engages the ramp. A cushion of air is again provided as the tab is moved along the ramp as the tab is returned to a parked position.
摘要翻译：靠近磁盘驱动器内的旋转盘的风向通过位于盘的外径附近的斜坡中的多个孔引导。当驱动器不使用时，从支撑滑块的负载梁延伸的突出部位在斜坡上。当驱动器启动时，磁盘开始旋转，执行器移动负载梁，使滑块越过磁盘表面。当载荷梁移动时，翼片沿着斜坡引导，并由其下方的坡道中的孔的气流缓冲。当驱动器停止时，执行器将负载梁返回，以使接头与斜坡接合。当翼片返回到停放位置时，翼片沿斜坡移动时，再次提供空气缓冲垫。

4. 发明授权

US06421211B1 Disk drive actuator arm with microactuated read/write head positioning 有权
公开(公告)号：US06421211B1
公开(公告)日：2002-07-16
申请号：US09938084
申请日：2001-08-23
申请人： Muhammad A. Hawwa , Jamshid Bozorgi
发明人： Muhammad A. Hawwa , Jamshid Bozorgi
IPC分类号： G11B5596
CPC分类号： G11B5/5556
摘要： The present invention is embodied in an actuator arm which is mounted to a primary actuator. The primary actuator positions the actuator arm, with a read/write head mounted to the actuator arm, across a data storage disk. The actuator arm comprises an inboard portion, an outboard portion and a pair of bimorph actuators. The inboard portion has a longitudinal axis and is attached to the primary actuator. The outboard portion has the read/write head mounted onto it. The pair of bimorph actuators are deflectable together in a common direction and are connected between the inboard and the outboard portions. Upon deflection of the bimorph actuators in the same direction, the outboard portion is translated along an at least nearly straight line transverse to the longitudinal axis of the inboard portion. This transverse motion allows the read/write head to be kept substantially within a plane parallel to the surface of the data storage disk, preventing damage caused by possible contact between slider and the disk surface from rolling the slider due to out-of-plane motions. Further, the use of bimorph actuators provide increased displacements of the read/write head. Also, since the head displacement is not a function of microactuator's position along the actuator arm, the actuator arm can be shorter, allowing for use in compact disk drives.

5. 发明授权

US06856489B2 Airflow assisted ramp loading and unloading of sliders in hard disk drives 失效
标题翻译：气流辅助斜盘加载和卸载硬盘驱动器中的滑块
公开(公告)号：US06856489B2
公开(公告)日：2005-02-15
申请号：US10765261
申请日：2004-01-27
申请人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
发明人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
IPC分类号： G11B21/21 , G11B5/54 , G11B21/12 , G11B21/22
CPC分类号： G11B5/54 , G11B21/12 , G11B21/22
摘要： Windage proximate to a spinning disk within a disk drive is directed through a plurality of apertures in a ramp situated near the outside diameter of the disk. A tab extending from a load beam that supports a slider rests on the ramp when the drive is not in use. When the drive is started the disk begins to spin and an actuator moves the load beam to bring the slider over the surface of the disk. As the load beam moves, the tab is guided along the ramp and cushioned by the air flow emerging from apertures in the ramp beneath it. When the drive is stopped the actuator brings the load beam back so that the tab engages the ramp. A cushion of air is again provided as the tab is moved along the ramp as the tab is returned to a parked position.
摘要翻译：靠近磁盘驱动器内的旋转盘的风向通过位于盘的外径附近的斜坡中的多个孔引导。当驱动器不使用时，从支撑滑块的负载梁延伸的突出部位在斜坡上。当驱动器启动时，磁盘开始旋转，执行器移动负载梁，使滑块越过磁盘表面。当载荷梁移动时，翼片沿着斜坡引导，并由其下方的坡道中的孔的气流缓冲。当驱动器停止时，执行器将负载梁返回，以使接头与斜坡接合。当翼片返回到停放位置时，翼片沿斜坡移动时，再次提供空气缓冲垫。

6. 发明授权

US06665146B2 Airflow assisted ramp loading and unloading of sliders in hard disk drives 失效
公开(公告)号：US06665146B2
公开(公告)日：2003-12-16
申请号：US10178599
申请日：2002-06-24
申请人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
发明人： Muhammad A. Hawwa , Jamshid Bozorgi , Aric Menon
IPC分类号： G11B2112
CPC分类号： G11B5/54 , G11B21/12 , G11B21/22
摘要： Windage proximate to a spinning disk within a disk drive is directed through a plurality of apertures in a ramp situated near the outside diameter of the disk. A tab extending from a load beam that supports a slider rests on the ramp when the drive is not in use. When the drive is started the disk begins to spin and an actuator moves the load beam to bring the slider over the surface of the disk. As the load beam moves, the tab is guided along the ramp and cushioned by the air flow emerging from apertures in the ramp beneath it. When the drive is stopped the actuator brings the load beam back so that the tab engages the ramp. A cushion of air is again provided as the tab is moved along the ramp as the tab is returned to a parked position.

7. 发明授权

US06512659B1 Disk drive actuator arm with microactuated read/write head positioning 有权
公开(公告)号：US06512659B1
公开(公告)日：2003-01-28
申请号：US10105603
申请日：2002-03-21
申请人： Muhammad A. Hawwa , Jamshid Bozorgi
发明人： Muhammad A. Hawwa , Jamshid Bozorgi
IPC分类号： G11B556
CPC分类号： G11B5/5556
摘要： The present invention is embodied in an actuator arm which is mounted to a primary actuator. The primary actuator positions the actuator arm, with a read/write head mounted to the actuator arm, across a data storage disk. The actuator arm comprises an inboard portion, an outboard portion and a pair of bimorph actuators. The inboard portion has a longitudinal axis and is attached to the primary actuator. The outboard portion has the read/write head mounted onto it. The pair of bimorph actuators are deflectable together in a common direction and are connected between the inboard and the outboard portions. Upon deflection of the bimorph actuators in the same direction, the outboard portion is translated along an at least nearly straight line transverse to the longitudinal axis of the inboard portion. This transverse motion allows the read/write head to be kept substantially within a plane parallel to the surface of the data storage disk, preventing damage caused by possible contact between slider and the disk surface from rolling the slider due to out-of-plane motions. Further, the use of bimorph actuators provide increased displacements of the read/write head. Also, since the head displacement is not a function of microactuator's position along the actuator arm, the actuator arm can be shorter, allowing for use in compact disk drives.

8. 发明授权

US06404600B1 Disk drive actuator arm with microactuated read/write head positioning 失效
标题翻译：磁盘驱动器执行器臂，具有微动读/写头定位
公开(公告)号：US06404600B1
公开(公告)日：2002-06-11
申请号：US09938088
申请日：2001-08-23
申请人： Muhammad A. Hawwa , Jamshid Bozorgi
发明人： Muhammad A. Hawwa , Jamshid Bozorgi
IPC分类号： G11B556
CPC分类号： G11B5/5556
摘要： The present invention is embodied in an actuator arm which is mounted to a primary actuator. The primary actuator positions the actuator arm, with a read/write head mounted to the actuator arm, across a data storage disk. The actuator arm comprises an inboard portion, an outboard portion and a pair of bimorph actuators. The inboard portion has a longitudinal axis and is attached to the primary actuator. The outboard portion has the read/write head mounted onto it. The pair of bimorph actuators are deflectable together in a common direction and are connected between the inboard and the outboard portions. Upon deflection of the bimorph actuators in the same direction, the outboard portion is translated along an at least nearly straight line transverse to the longitudinal axis of the inboard portion. This transverse motion allows the read/write head to be kept substantially within a plane parallel to the surface of the data storage disk, preventing damage caused by possible contact between slider and the disk surface from rolling the slider due to out-of-plane motions. Further, the use of bimorph actuators provide increased displacements of the read/write head. Also, since the head displacement is not a function of microactuator's position along the actuator arm, the actuator arm can be shorter, allowing for use in compact disk drives.
摘要翻译：本发明体现在安装到主致动器上的致动器臂中。主执行器将执行器臂定位在读/写头安装到致动器臂上的数据存储盘上。致动器臂包括内侧部分，外侧部分和一对双压电晶片致动器。内侧部分具有纵向轴线并且附接到主致动器。外侧部分具有安装在其上的读/写头。一对双压电晶片致动器在共同的方向上可偏转在一起，并且连接在内侧和外侧部分之间。当双向压电致动器在相同方向上偏转时，外侧部分沿着横向于内侧部分的纵向轴线的至少几乎直线平移。这种横向运动允许读/写头基本上保持在与数据存储盘的表面平行的平面内，防止由于平面外的运动而使滑块和盘表面之间的可能的接触滚动滑块所引起的损坏。此外，双压电晶片致动器的使用提供了读/写头的增加的位移。此外，由于头位移不是微致动器沿着致动器臂的位置的函数，所以致动器臂可以更短，允许在紧凑的磁盘驱动器中使用。

9. 发明授权

US06310746B1 Piezoelectric vibration damping for disk drives 有权
标题翻译：磁盘驱动器的压电振动阻尼
公开(公告)号：US06310746B1
公开(公告)日：2001-10-30
申请号：US09338836
申请日：1999-06-23
申请人： Muhammad A. Hawwa , Jamshid Bozorgi
发明人： Muhammad A. Hawwa , Jamshid Bozorgi
IPC分类号： G11B5012
CPC分类号： G11B33/08 , G11B5/4873 , G11B5/5552 , G11B5/5582 , G11B5/59694 , G11B21/00
摘要： The present invention provides passive and active damping systems for reducing or substantially eliminating undesirable vibrations from components of data storage and retrieval systems. The passive and active damping systems incorporate piezoelectric materials, and make use of an advantageous property of these materials, namely the ability to convert mechanical strains into electric potentials and vice versa. The passive systems of the present invention dissipate vibrational energy through an electrical shunt circuit. The active systems seek to cancel an existing vibration in a component by generating and applying an additional vibration to the same component, where the applied vibration is out of phase with the existing vibration and the two vibrations tend to add destructively. Active systems, in certain circumstances, may also be able to anticipate predictable vibrations and proactively cancel them, rather than merely reacting to vibrations after they arise.
摘要翻译：本发明提供了用于减少或基本消除来自数据存储和检索系统的组件的不期望的振动的无源和主动阻尼系统。被动和主动阻尼系统包括压电材料，并且利用这些材料的有利特性，即将机械应变转化为电势的能力，反之亦然。本发明的被动系统通过电分流电路消散振动能。主动系统通过对相同的部件产生和施加附加的振动来消除部件中的现有振动，其中所施加的振动与现有振动异相，并且两个振动趋于增加。在某些情况下，主动系统也可以预测可预测的振动并主动地消除它们，而不仅仅是在振动出现之后对其产生反应。

10. 发明授权

US07085104B1 Low profile head gimbal assembly with shock limiting and load/unload capability 失效
标题翻译：具有冲击限制和负载/卸载能力的低调头万向架组件
公开(公告)号：US07085104B1
公开(公告)日：2006-08-01
申请号：US11101045
申请日：2005-04-06
申请人： Jafar Hadian , Jamshid Bozorgi
发明人： Jafar Hadian , Jamshid Bozorgi
IPC分类号： G11B5/48 , G11B5/54
CPC分类号： G11B5/54 , G11B5/40 , G11B5/4826
摘要： Head gimbal assemblies are provided that comprise a slider, a load beam, a flexure, and a lifter tab. The flexure holds the slider against a pivot point of the load beam. The lifter tab extends from the load beam to engage a load/unload ramp. The load beam includes a base portion having the pivot point, a first side rail, and a first limiter stop. The first side rail is disposed adjacent to a transverse side of the slider while the first limiter stop is adjacent to a leading side of the slider. The first limiter stop extends from the first side rail and is essentially perpendicular thereto. The flexure includes a first leading edge tab that extends between the first limiter stop and the base portion of the load beam to limit the movement of the flexure especially during loading and unloading.
摘要翻译：提供头部万向架组件，其包括滑块，负载梁，挠曲件和升降器凸片。挠曲件将滑块抵靠负载梁的枢转点。升降器突出部从负载梁延伸以接合负载/卸载斜坡。负载梁包括具有枢转点的基部，第一侧轨和第一限位器止挡。第一侧轨与第一限位器止挡邻近滑动件的前侧相邻设置在滑块的横向侧。第一限位器止动件从第一侧轨延伸并且基本上垂直于其。挠曲件包括第一前缘突片，其在第一限位器止动件和负载梁的基部之间延伸，以限制挠曲件的移动，特别是在装载和卸载期间。

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