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1. 发明授权

US6052251A Actuator arm integrated piezoelectric microactuator 失效
标题翻译：执行器臂集成压电微致动器
公开(公告)号：US6052251A
公开(公告)日：2000-04-18
申请号：US836292
申请日：1997-05-12
申请人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
发明人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
IPC分类号： G11B5/54 , G11B5/55 , G11B21/08 , G11B21/24
CPC分类号： G11B5/54 , G11B21/085 , G11B21/24 , G11B5/4873 , G11B5/5552 , Y10T29/49025
摘要： A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space it the actuator arm.
摘要翻译： PCT No.PCT / US97 / 07892 Sec。 371日期：1998年3月19日 102（e）1998年3月19日PCT PCT 1997年5月12日PCT公布。公开号WO97 / 32044 日期1997年9月4日用于将转换头定位在可旋转盘的选定轨道上的盘驱动装置中的系统包括可围绕轴线旋转的致动器臂，连接到致动器臂的头悬挂机构和承载转头并由头悬挂机构支撑。低分辨率马达使致动器臂围绕轴线移动，以使头部在盘的轨道之间进行粗略移动。压电元件嵌入在致动器臂中以扭曲臂以实现头部的精细定位。控制电路将电信号分配到低分辨率电动机和压电元件以选择性地控制其运动。通过从致动器臂移除预定量的材料并将压电元件接合在致动臂的所得空间中，将压电元件嵌入致动器臂中。

2. 发明授权

US06298545B1 Method of making an actuator arm integrated piezoelectric microactuator 失效
标题翻译：制动执行器臂集成压电微致动器的方法
公开(公告)号：US06298545B1
公开(公告)日：2001-10-09
申请号：US09459140
申请日：1999-12-10
申请人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
发明人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
IPC分类号： G11B542
CPC分类号： G11B5/54 , G11B5/4873 , G11B5/5552 , G11B21/085 , G11B21/24 , Y10T29/49025
摘要： A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space in the actuator arm.
摘要翻译：用于将转换头定位在可旋转盘的选定轨道上的盘驱动装置中的系统包括可围绕轴旋转的致动器臂，连接到致动器臂的头悬挂机构，以及承载换能头的滑块通过头悬挂机构。低分辨率马达使致动器臂围绕轴线移动，以使头部在盘的轨道之间进行粗略移动。压电元件嵌入在致动器臂中以扭曲臂以实现头部的精细定位。控制电路将电信号分配到低分辨率电动机和压电元件以选择性地控制其运动。通过从致动器臂中移除预定量的材料并将压电元件接合在致动器臂中的所得空间中，将压电元件嵌入致动器臂中。

3. 发明授权

US6157116A Active noise cancellation in disc drives 失效
标题翻译：磁盘驱动器中的主动噪声消除
公开(公告)号：US6157116A
公开(公告)日：2000-12-05
申请号：US14649
申请日：1998-01-28
申请人： Joseph M. Sampietro , Muhammad A. Hawwa , Khosrow Mohajerani , Anoush M. Fard , Jeffrey G. Barina
发明人： Joseph M. Sampietro , Muhammad A. Hawwa , Khosrow Mohajerani , Anoush M. Fard , Jeffrey G. Barina
IPC分类号： G10K11/178 , G11B33/08 , H01L41/04
CPC分类号： G10K11/178 , G11B33/08 , G10K2210/10
摘要： Noise effects in a disc drive having a disc on a rotating spindle in a housing are reduced by inducing vibrations in the housing of the disc drive that at least partially cancel a characteristic acoustic noise signal of the drive.
摘要翻译：通过在磁盘驱动器的壳体中引起振动来至少部分地消除驱动器的特征声学噪声信号来减小具有在壳体中的旋转主轴上的盘的盘驱动器中的噪声效应。

4. 发明授权

US6108175A Bimorph piezoelectric microactuator head and flexure assembly 失效
标题翻译：双压电晶体微致动器头部和挠曲组件
公开(公告)号：US6108175A
公开(公告)日：2000-08-22
申请号：US836265
申请日：1997-05-01
申请人： Muhammad A. Hawwa , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Khosrow Mohajerani
发明人： Muhammad A. Hawwa , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Khosrow Mohajerani
IPC分类号： G11B5/58 , G11B5/48 , G11B5/55 , G11B5/596 , G11B5/60 , G11B21/10 , G11B21/21
CPC分类号： G11B5/6005 , G11B5/4813 , G11B5/5552 , G11B5/596 , G11B5/59605
摘要： A head flexure assembly for positioning a transducing head over a selected track of a rotatable disc in a disc drive system having an actulator arm and head suspension includes a bimorph piezoelectric microactuator having first and second ends. The first end of the microactuator is attached to the actuator arm, and a flexure is attached to the second end of the microactuator. A slider carrying the transducing head is attached to the flexure.
摘要翻译： PCT No.PCT / US97 / 07233 Sec。 371日期1997年5月1日 102（e）日期1997年5月1日PCT提交1997年5月1日PCT公布。第WO98 / 27547号公报日期1998年6月25日在具有动作器臂和头悬架的盘驱动系统中，用于将转换头定位在可旋转盘的选定轨道上的头部挠曲组件包括具有第一端和第二端的双压电晶片压电微致动器。微致动器的第一端附接到致动器臂，并且挠曲件附接到微致动器的第二端。携带转换头的滑块附接到挠曲件。

5. 发明授权

US06362933B1 Piezoelectric head loading and unloading device for rigid disc drives 失效
标题翻译：用于硬盘驱动器的压电头加载和卸载装置
公开(公告)号：US06362933B1
公开(公告)日：2002-03-26
申请号：US08793474
申请日：1997-02-24
申请人： Joseph M. Sampietro , Khosrow Mohajerani , Anoush M. Fard , Richard G. Krum , Jeffrey G. Barina , Muhammad A. Hawwa
发明人： Joseph M. Sampietro , Khosrow Mohajerani , Anoush M. Fard , Richard G. Krum , Jeffrey G. Barina , Muhammad A. Hawwa
IPC分类号： G11B554
CPC分类号： G11B5/6005 , G11B5/54 , G11B21/12 , G11B21/21
摘要： A system for loading a transducing head (22) to a flying elevation proximate a rotating surface of a disc (16) is disclosed. The system includes a piezoelectric device (40) that is selectively expanded and contracted to control a height of the head (22) on a flexure spring (14) from the surface of the disc (16). The system preferably includes control circuitry (50) for generating electrical control signals to manage the expansion and contraction of the piezoelectric device (40) according to operating characteristics of the disc (16).
摘要翻译：公开了一种用于将传感头（22）加载到靠近盘（16）的旋转表面的飞行高度的系统。该系统包括压电装置（40），其被选择性地膨胀和收缩以控制来自盘（16）的表面的挠曲弹簧（14）上的头部（22）的高度。该系统优选地包括用于根据盘（16）的操作特性产生电控信号以控制压电装置（40）的膨胀和收缩的控制电路（50）。

6. 发明授权

US6025975A E-block head stack microactuator assembly 失效
标题翻译：电子块头组件微型制动器总成
公开(公告)号：US6025975A
公开(公告)日：2000-02-15
申请号：US817863
申请日：1997-05-01
申请人： Anoush M. Fard , Khosrow Mohajerani , Joseph M. Sampietro , Jeffrey G. Barina , Muhammad A. Hawwa
发明人： Anoush M. Fard , Khosrow Mohajerani , Joseph M. Sampietro , Jeffrey G. Barina , Muhammad A. Hawwa
IPC分类号： G11B5/596 , G11B5/55 , G11B21/08 , G11B21/10 , G11B5/56
CPC分类号： G11B5/5552 , G11B21/08 , G11B21/106 , G11B5/4873
摘要： A system for positioning a transducing head of a disc drive over a selected track (42) of a rotatable disc (40) includes an actuator assembly (20,50) having an E-block body (25) including a cavity (37), at least one actuator arm (30) extending from the E-block body (25), a head suspension mechanism (34,36,38) including the transducing head connected to an end of the actuator arm (30), and a pivot cartridge (26) in the cavity (37) in the E-block body (25). The E-block body (25) is attached to the pivot cartridge (26) and forms a hinge point (39) between the E-block body (25) and the pivot cartridge (26). A low resolution motor (22) rotates the actuator assembly (20,50) about an axis (24) to effect coarse positioning of the head with respect to the selected track (42) of the rotatable disc (40). A piezoelectric element (27,52) in the E-block body (25) is selectively expanded and contracted to distort the E-block body (25) around the hinge point (39) to effect fine positioning of the head with respect to the selected track (42) of the rotatable disc (40).
摘要翻译： PCT No.PCT / US97 / 07352 Sec。 371日期1997年5月1日 102（e）日期1997年5月1日PCT提交1997年5月1日PCT公布。公开号WO98 / 27546 日期1998年6月25日用于将盘驱动器的换能头定位在可旋转盘（40）的选定轨道（42）上的系统包括具有E形块体（25）的致动器组件（20,50）空腔（37），从E形块体（25）延伸的至少一个致动器臂（30），包括连接到致动器臂（30）的端部的换能头的头悬挂机构（34,36,38）以及位于E形块体（25）中的空腔（37）中的枢轴筒（26）。 E块体（25）连接到枢轴筒（26）上，并在E块体（25）和枢轴筒（26）之间形成铰链点（39）。低分辨率马达（22）围绕轴线（24）旋转致动器组件（20,50），以实现头部相对于可旋转盘（40）的选定轨道（42）的粗略定位。 E块体（25）中的压电元件（27,52）被选择性地膨胀和收缩，以使铰链点（39）周围的E形块体（25）变形，从而使头部相对于所述可旋转盘（40）的所选轨道（42）。

7. 发明授权

US4879617A Actuator assembly for hard disk drives 失效
标题翻译：用于硬盘驱动器的执行器组件
公开(公告)号：US4879617A
公开(公告)日：1989-11-07
申请号：US173618
申请日：1988-03-25
申请人： Joseph M. Sampietro , Khosrow Mohajerani
发明人： Joseph M. Sampietro , Khosrow Mohajerani
IPC分类号： G11B5/54 , G11B5/55 , G11B21/00 , G11B21/02
CPC分类号： G11B21/02 , G11B21/00 , G11B5/54 , G11B5/5521
摘要： An actuator assembly for a disk drive system includes an actuator pivotally mounted to a shaft, and a coil assembly. A counterbalance portion of the actuator provides a recess wherein a portion of the coil assembly is slidably inserted. The coil assembly includes a bobbin which has a dovetail portion having at least two precision positioning surfaces which, when placed within the counterbalance recess, interact with corresponding precision positioning surfaces provided within the counterbalance recess. In order to accurately position the coil assembly with respect to the actuator, an outward force is applied to the coil assembly perpendicular to the pivot axis to cause facing pairs of the precision positioning surfaces of the coil assembly and the counterbalance recess to bear against one another, and align a dowel/pin alignment passageway extending through the counterbalance with a dowel/pin recess provided in the bobbin. A dowel is then placed through the alignment passageway and into the dowel/pin recess to hold the actuator and coil assembly in the preferred configuration while an adhesive is injected into the spacing between the bobbin and the counterbalance recess. No adhesive is injected between the precision positioning surfaces bearing against one another. The dowel is subsequently removed and replaced by a stop pin.

8. 发明授权

US07369368B1 Head stack assembly having an actuator body with multiple slots adjacent to a bore 失效
标题翻译：头部堆叠组件具有致动器主体，其具有与孔相邻的多个槽
公开(公告)号：US07369368B1
公开(公告)日：2008-05-06
申请号：US10966552
申请日：2004-10-15
申请人： Khosrow Mohajerani
发明人： Khosrow Mohajerani
IPC分类号： G11B21/08
CPC分类号： G11B5/4813
摘要： A head stack assembly for a disk drive includes an actuator body. The actuator body includes a pair of sides, a bore defining a longitudinal axis, a first slot extending between the pair of sides, a second slot extending along a direction perpendicular to the longitudinal axis, the second slot extending from the first slot to the bore. The head stack assembly further includes a coil portion cantilevered from the actuator body in one direction and an actuator arm cantilevered from the actuator body in a direction opposite from the coil portion.
摘要翻译：用于磁盘驱动器的磁头堆叠组件包括致动器主体。致动器主体包括一对侧面，限定纵向轴线的孔，在一对侧面之间延伸的第一槽，沿着垂直于纵向轴线的方向延伸的第二槽，第二槽从第一槽延伸到孔。头部堆叠组件还包括沿着一个方向从致动器主体悬臂的线圈部分和从致动器本体沿与线圈部分相反的方向悬臂的致动器臂。

9. 发明授权

US06255750B1 Apparatus and method for reducing disc flutter and disc vibration effects in a disc drive 失效
标题翻译：用于减少盘驱动器中的盘颤动和盘振动效应的装置和方法
公开(公告)号：US06255750B1
公开(公告)日：2001-07-03
申请号：US09475015
申请日：1999-12-30
申请人： Khosrow Mohajerani , Wallis A. Dague
发明人： Khosrow Mohajerani , Wallis A. Dague
IPC分类号： H02K524
CPC分类号： G11B19/2009 , G11B17/02 , G11B17/038 , G11B33/08
摘要： An apparatus and method for reducing the effects of disc flutter or noise in a disc drive incorporates damping material or rings that are clamped or sandwiched against mounted information storage disc at a distance from a hub portion of a spindle assembly. The damping rings are positioned between a disc clamp and a bottom annular flange of the hub portion so as to engage and reduce vibrations in the mounted information storage disc or discs. The damping rings can be retained in grooves defined in the disc clamp, bottom annular flange and top and bottom surfaces of an annular disc spacer. Alternatively, the damping rings can be reatined on tubular sidewalls defined on the disc clamp, bottom annular flange of the hub portion and annular disc spacer. The arrangement of damping rings absorbs energy transmitted by vibrations in information storage disc and thus minimizes the effects of disc flutter in a disc drive.
摘要翻译：用于减小盘驱动器中的盘振动或噪声的影响的装置和方法包括阻挡材料或环，所述阻尼材料或环被夹持或夹在与主轴组件的毂部分相距一定距离的安装的信息存储盘上。阻尼环位于盘片夹持器和毂部分的底部环形凸缘之间，以便接合和减小安装的信息存储盘或盘中的振动。阻尼环可以保持在限定在圆盘夹紧器，底部环形凸缘和环形圆盘间隔件的顶部和底部表面中的凹槽中。或者，阻尼环可以在限定在盘夹具，毂部的底部环形凸缘和环形盘间隔件上的管状侧壁上重新放置。阻尼环的布置吸收由信息存储盘中的振动传递的能量，从而最小化磁盘驱动器中的盘颤动的影响。

10. 发明授权

US5712746A Clamp ring for a disk stack assembly 失效
标题翻译：用于磁盘堆栈组件的夹环
公开(公告)号：US5712746A
公开(公告)日：1998-01-27
申请号：US811509
申请日：1997-03-04
申请人： Michael B. Moir , Khosrow Mohajerani
发明人： Michael B. Moir , Khosrow Mohajerani
IPC分类号： G11B17/02 , G11B17/028 , G11B17/038
CPC分类号： G11B17/0287 , G11B17/02 , G11B17/038 , Y10T29/49025 , Y10T29/49865
摘要： A clamp ring for a disk stack assembly of a computer disk drive unit includes a lower surface which includes an arcuate rolling contact surface that uniformly distributes a load applied to the clamp ring to components of the disk stack assembly underlying the clamp ring without damaging such disk stack components on load-induced flexion of the clamp ring. A cantilevered section of the clamp ring is disposed radially inwardly of the arcuate rolling contact surface, and is defined by a portion of the lower surface which is raised relative to an adjacent portion of the arcuate rolling contact surface so as to not contact the underlying disk stack components on load-induced flexion of the clamp ring. In use, the clamp ring is heated and then placed over the disk stack components to be clamped together. An axial load is applied to the clamp ring which causes it to flex and thus move contact between the lower surface of the clamp ring and the underlying disk stack components radially along the arcuate rolling contact surface. The axial force is maintained until the clamp ring cools sufficiently to hold the clamp ring in place, and then the axial load is removed.
摘要翻译：用于计算机磁盘驱动单元的磁盘堆叠组件的夹环包括下表面，该下表面包括弓形滚动接触表面，其将施加到夹紧环的负载均匀地分配到夹紧环下方的磁盘组组件的组件，而不损坏该磁盘堆叠组件在夹紧环的负载诱发弯曲上。夹紧环的悬臂部分设置在弧形滚动接触表面的径向内侧，并且由相对于弓形滚动接触表面的相邻部分升高的下表面的一部分限定，以便不接触下面的盘堆叠组件在夹紧环的负载诱发弯曲上。在使用中，夹紧环被加热，然后放置在盘堆叠部件上以夹紧在一起。轴向载荷被施加到夹紧环上，使得其弯曲并因此沿着弓形滚动接触表面径向地移动夹紧环的下表面和下面的盘堆组件之间的接触。保持轴向力，直到夹紧环足够冷却以将夹紧环保持就位，然后移除轴向载荷。

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