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1. 发明授权

US5621591A Dual coil voice coil motor 失效
标题翻译：双线圈音圈电机
公开(公告)号：US5621591A
公开(公告)日：1997-04-15
申请号：US628453
申请日：1996-04-05
申请人： Alireza Rahimi , Kamran Oveyssi
发明人： Alireza Rahimi , Kamran Oveyssi
IPC分类号： G11B5/55
CPC分类号： G11B5/5521
摘要： A head-arm assembly having a pair of trapezoidal-like shaped coil bobbins for improved torque and moments of inertia in a voice coil motor (VCM) for a disk drive. The VCM includes a magnetic structure that employs three magnet polarity zones having two flux transition zones. The magnetic structure is able to employ relatively thin pole pieces without saturation or leakage. The thin pole pieces permit use of a thicker magnet in the same envelope size. The result is an increased flux density in the air gap of the VCM, giving higher torque and shorter access time. In addition to improving the torque and moments of inertia, the present invention allows use of thicker magnets (thinner pole pieces) and allows the option of using a thinner coil that is wider radially. In another version, an oval-shaped coil may be used for increased effective length when disposed within a magnetic field of a VCM.
摘要翻译：一种头臂组件，具有一对梯形线状线圈架，用于在用于磁盘驱动器的音圈电机（VCM）中改善扭矩和转动惯量。 VCM包括采用具有两个磁通过渡区域的三个磁极区域的磁结构。磁性结构能够使用相对薄的极片而没有饱和或泄漏。薄极片允许使用相同信封尺寸的较厚磁铁。结果是VCM气隙中的磁通密度增加，提供更高的扭矩和更短的存取时间。除了提高扭矩和转动惯量之外，本发明还允许使用较厚的磁体（较薄的极片），并且允许使用更宽的径向更薄的线圈的选择。在另一种形式中，当设置在VCM的磁场内时，可以使用椭圆形线圈来增加有效长度。

2. 发明授权

US07215513B1 Disk drive including a one-piece stamped actuator arm assembly and method of making same 有权
标题翻译：磁盘驱动器包括一体冲压的执行器臂组件及其制造方法
公开(公告)号：US07215513B1
公开(公告)日：2007-05-08
申请号：US10633190
申请日：2003-07-31
申请人： Ken L. Chang , Kamran Oveyssi
发明人： Ken L. Chang , Kamran Oveyssi
IPC分类号： G11B5/54
CPC分类号： G11B5/484
摘要： An actuator arm assembly of a disk drive is stamped from a single flat sheet of material and includes first and second actuator arm portions and one or more bendable portions integrally joining the first and second actuator arm portions. A method of making an actuator arm assembly for a disk drive includes steps of providing a flat sheet of material and stamping an actuator arm assembly from the sheet such that the stamped actuator arm assembly includes first and second actuator arm portions and one or more bendable portions integrally joining the first and second actuator arm portions.
摘要翻译：磁盘驱动器的致动器臂组件从单个平板材料冲压而成，并且包括第一和第二致动器臂部分以及整体连接第一和第二致动器臂部分的一个或多个可弯曲部分。制造用于盘驱动器的致动器臂组件的方法包括提供平板材料并从片材冲压致动器臂组件的步骤，使得冲压的致动器臂组件包括第一和第二致动器臂部分以及一个或多个可弯曲部分一体地连接第一和第二致动器臂部分。

3. 发明授权

US07161768B1 Disk drive including an orthogonally disposed actuator coil and an E-shaped voice coil motor yoke for supporting a pair of voice coil magnets 有权
标题翻译：磁盘驱动器包括正交设置的致动器线圈和用于支撑一对音圈磁体的E形音圈马达轭
公开(公告)号：US07161768B1
公开(公告)日：2007-01-09
申请号：US10724410
申请日：2003-11-26
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： G11B21/02
CPC分类号： G11B5/5569
摘要： A disk drive including a generally E-shaped voice coil motor yoke. The yoke includes a generally C-shaped integrally formed first yoke body, the first yoke body including a first yoke first prong and a first yoke second prong. The yoke further includes a generally C-shaped integrally formed second yoke body. The second yoke body including a second yoke first prong and a second yoke second prong with the second yoke second prong coupled to the first yoke second prong. The disk drive further includes a first voice coil magnet supported by the first yoke first prong and a second voice coil magnet supported by the second yoke first prong. The disk drive further includes an actuator having an actuator coil that is positionable about the first yoke second prong and the second yoke second prong and between the first voice coil magnet and the second voice coil magnet.
摘要翻译：磁盘驱动器，其包括大致E形音圈马达轭。磁轭包括大致C形的一体形成的第一磁轭体，第一磁轭体包括第一磁轭第一分支和第一磁轭第二分支。轭还包括大致C形的一体形成的第二轭体。第二磁轭体包括第二磁轭第一分支和第二磁轭第二分支，第二磁轭第二分支耦合到第一磁轭第二分支。磁盘驱动器还包括由第一磁轭第一分支支撑的第一音圈磁体和由第二磁轭第一分支支撑的第二音圈磁体。磁盘驱动器还包括具有致动器线圈的致动器，该致动器线圈可围绕第一磁轭第二插脚和第二磁轭第二插脚定位，并且在第一音圈磁体和第二音圈磁体之间。

4. 发明授权

US07092216B1 Disk drives and actuator assemblies having a pair of bonded voice coil supporting arms 有权
标题翻译：磁盘驱动器和致动器组件具有一对键合的音圈支撑臂
公开(公告)号：US07092216B1
公开(公告)日：2006-08-15
申请号：US10632351
申请日：2003-07-31
申请人： Ken L. Chang , Kamran Oveyssi
发明人： Ken L. Chang , Kamran Oveyssi
IPC分类号： G11B21/08 , G11B5/55
CPC分类号： G11B5/5569
摘要： An actuator arm assembly for a disk drive includes first and second stamped actuator arms including first and second arm portions, first and second body portions defining first and second body surfaces, and first and second coil-supporting arm portions defining first and second pairs of coil supporting arms for supporting a coil portion of a voice coil motor. When the first and second stamped actuator arms are attached to one another, the first pair of coil supporting arms faces and is in contact with the second pair of coil supporting arms to define first and second coil attachment surfaces, and the first body surface faces and is in contact with the second body surface to define a third coil attachment surface.
摘要翻译：用于盘驱动器的致动器臂组件包括第一和第二冲压致动器臂，包括第一和第二臂部分，限定第一和第二主体表面的第一和第二主体部分以及限定第一和第二对线圈的第一和第二线圈支撑臂部分用于支撑音圈电机的线圈部分的支撑臂。当第一和第二冲压致动器臂彼此附接时，第一对线圈支撑臂面对并与第二对线圈支撑臂接触以限定第一和第二线圈附接表面，并且第一主体表面面向与第二体表面接触以限定第三线圈附接表面。

5. 发明授权

US07050270B1 Disk drive actuator arm assembly having a portion of the arm at a greater distance from a disk recording surface than the arm tip portion 有权
标题翻译：磁盘驱动器执行机构臂组件，其臂部的一部分距磁盘记录表面比臂尖部分更大
公开(公告)号：US07050270B1
公开(公告)日：2006-05-23
申请号：US10286126
申请日：2002-10-31
申请人： Kamran Oveyssi , Chen-Chi Lin
发明人： Kamran Oveyssi , Chen-Chi Lin
IPC分类号： G11B21/08
CPC分类号： G11B5/4833
摘要： An actuator arm assembly for a disk having a recording surface, the actuator arm assembly includes an actuator body including a bore defining a longitudinal pivot axis and an actuator arm cantilevered from the actuator body. The actuator arm includes an arm major portion cantilevered from the actuator body, an arm tip portion, and an arm tip supporting portion integrally formed with the arm major portion and the arm tip portion, wherein the arm major portion is longitudinally spaced-apart at a greater distance from the recording surface than the arm tip portion.
摘要翻译：一种用于具有记录表面的盘的致动器臂组件，致动器臂组件包括致动器主体，该致动器主体包括限定纵向枢转轴线的孔和从致动器主体悬臂的致动器臂。致动器臂包括从致动器本体悬臂的臂主体，臂末端部分和与臂主要部分和臂尖部分一体形成的臂尖支撑部分，其中臂主要部分在距记录表面的距离比臂末端部更大。

6. 发明授权

US06898052B1 Spindle motor including magnetic element for pre-loading a ball bearing set 失效
标题翻译：主轴电机包括用于预加载球轴承组的磁性元件
公开(公告)号：US06898052B1
公开(公告)日：2005-05-24
申请号：US10741863
申请日：2003-12-19
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： F16C25/08 , F16C39/06 , G11B17/02 , G11B19/20 , H02K7/08 , H02K7/09
CPC分类号： G11B19/2009 , F16C25/086 , F16C2370/12 , H02K7/086 , H02K7/09
摘要： A spindle motor for use in a disk drive includes a spindle motor base and a motor shaft. The motor shaft has a central axis. The spindle motor includes a spindle motor hub rotatably coupled to the spindle motor base, the spindle motor hub including a central magnetic metal portion disposed adjacent a distal end of the motor shaft. The spindle motor includes a ball bearing set disposed between and in mechanical communication with the spindle motor hub and the motor shaft for rotatably coupling the spindle motor hub to the spindle motor base. The spindle motor includes a shaft magnetic element attached to the motor shaft at the distal end adjacent the central magnetic metal portion, the shaft magnetic element being sized and configured to apply an attractive magnetic force to the central magnetic metal portion in a direction along the central axis for pre-loading the ball bearing set.
摘要翻译：用于磁盘驱动器的主轴电动机包括主轴电动机底座和电动机轴。电机轴具有中心轴。主轴电动机包括可旋转地联接到主轴电动机基座的主轴电动机轮毂，主轴电动机毂包括邻近电动机轴的远端设置的中心磁性金属部分。主轴电动机包括设置在主轴电动机轮毂和电动机轴之间并与主轴电动机轮毂和电动机轴机械连通的滚珠轴承组件，用于将主轴电机毂可旋转地联接到主轴电机底座。所述主轴电动机包括轴磁性元件，所述轴磁元件在与所述中心磁性金属部分相邻的所述远端处附接到所述电动机轴，所述轴磁元件的尺寸和构造被设计成沿着所述中心的方向向所述中心磁性金属部分施加有吸引力的磁力轴预加载球轴承组。

7. 发明授权

US06856491B1 Pivot bearing cartridge including central pivot element and ball bearing set 失效
公开(公告)号：US06856491B1
公开(公告)日：2005-02-15
申请号：US10741786
申请日：2003-12-19
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： G11B5/48 , G11B5/55
CPC分类号： F16C21/00 , F16C17/08 , F16C2370/12 , G11B5/4813 , G11B5/5521
摘要： A pivot bearing cartridge for use in a head stack assembly. The pivot bearing cartridge includes a pivot shaft including a shaft body and a shaft distal end. The pivot bearing cartridge further includes a cap disposed about the pivot shaft. The cap includes a cap annular body and a cap closed end. The pivot bearing cartridge further includes a ball bearing set in mechanical communication with the pivot shaft and the cap annular body. The pivot bearing cartridge further includes a central pivot element disposed between and in mechanical communication with the shaft distal end and the cap closed end for facilitating rotation of the cap relative to the pivot shaft.

8. 发明授权

US06731470B1 Pivot bearing cartridge having inner and outer ball bearing sets 有权
标题翻译：内轴承和外球轴承组的轴承座
公开(公告)号：US06731470B1
公开(公告)日：2004-05-04
申请号：US09823740
申请日：2001-03-30
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： G11B2108
CPC分类号： F16C19/54 , F16C19/56 , F16C2370/12 , G11B5/4813
摘要： A pivot bearing cartridge for use in a head stack assembly. The pivot bearing cartridge is provided with a pivot bearing cartridge base. The pivot bearing cartridge is provided with a pivot shaft in mechanical communication with the pivot bearing cartridge base. The pivot bearing cartridge is provided with an inner ball bearing set surrounding the pivot shaft. The inner ball bearing set has a first inner race and a first outer race. The first inner race is attached to the pivot shaft. The pivot bearing cartridge is provided with an outer ball bearing set surrounding the inner ball bearing set. The outer ball bearing set has a second inner race and a second outer race. The second inner race is fixed relative to the first outer race.
摘要翻译：用于头部堆叠组件的枢转轴承盒。枢转轴承盒设置有枢转轴承筒底座。枢转轴承盒设置有与枢转轴承筒底座机械连通的枢轴。枢轴支承筒设置有围绕枢转轴的内滚珠轴承组。内滚珠轴承组具有第一内圈和第一外圈。第一内圈附接到枢轴。枢轴轴承筒设置有围绕内滚珠轴承组的外滚珠轴承组。外滚珠轴承组具有第二内圈和第二外圈。第二内圈相对于第一外圈是固定的。

9. 发明授权

US5561335A Integrated passive magnetic bearing system and spindle permanent magnet for use in a spindle motor 失效
标题翻译：集成无源磁轴承系统和主轴永磁体，用于主轴电机
公开(公告)号：US5561335A
公开(公告)日：1996-10-01
申请号：US201798
申请日：1994-02-25
申请人： John C. Dunfield , Kamran Oveyssi
发明人： John C. Dunfield , Kamran Oveyssi
IPC分类号： F16C39/06 , H02K5/167 , H02K7/09 , H02K21/22 , H02K7/14
CPC分类号： F16C17/08 , F16C25/045 , F16C32/0425 , H02K5/167 , H02K7/09 , F16C2370/12 , H02K21/22
摘要： An apparatus for rotatably journaling a rotor of a spindle motor about a stator comprising a plurality of magnetic bearings for use in a disc drive including an annular ring single-pole magnet which is integral with the spindle permanent magnet of a spindle motor rotor assembly and disposed in opposition to a complementary annular magnet ring attached to the stator assembly of the spindle motor. These magnetic bearings in conjunction with an axial pivot form a radially stable bearing system for maintaining rotor displacement about the stator in conjunction with a conventional axial pivot. The present invention provides for the unique combination of magnetic bearings with other conventional pivots for use in disc drive systems.
摘要翻译：一种用于将主轴电动机的转子围绕定子可旋转地旋转的装置，包括用于盘驱动器的多个磁性轴承，所述磁盘轴承包括与主轴电机转子组件的主轴永磁体成一体的环形单极磁体，与安装在主轴电动机的定子组件上的互补环形磁环相对。与轴向枢轴结合的这些磁性轴承形成径向稳定的轴承系统，用于与传统的轴向枢轴一起保持转子围绕定子的位移。本发明提供了用于磁盘驱动系统的磁性轴承与其他常规枢轴的独特组合。

10. 发明授权

US5541460A Passive magnetic bearings for a spindle motor 失效
公开(公告)号：US5541460A
公开(公告)日：1996-07-30
申请号：US201676
申请日：1994-02-25
申请人： John C. Dunfield , Kamran Oveyssi , Gunter K. Heine
发明人： John C. Dunfield , Kamran Oveyssi , Gunter K. Heine
IPC分类号： F16C17/08 , F16C39/06 , G11B19/20 , H02K7/09 , H02K7/00
CPC分类号： F16C17/08 , F16C25/045 , F16C32/0417 , F16C32/0425 , F16C39/063 , G11B19/2009 , H02K7/09 , F16C2370/12
摘要： An apparatus for rotatably journaling a rotor of a spindle motor about a shaft comprising a plurality of annular ring multi-pole magnets, each ring comprised of a plurality of axially aligned magnets whose polarity is alternated along the radius of the ring. The annular ring multi-pole magnets are disposed on both the rotor and stator of a spindle motor in opposition in attraction mode, or a complete offset repulsion mode with like poles facing one another with an full offset, thereby forming a radially stable magnetic bearing for maintaining rotor displacement about a shaft in conjunction with a conventional axial pivot.

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