公开(公告)号：US07161769B1

公开(公告)日：2007-01-09

申请号：US10651411

申请日：2003-08-29

Applicant: Ken L. Chang ,  Kamran Oveyssi

Inventor： Ken L. Chang ,  Kamran Oveyssi

IPC: G11B5/54

CPC classification number: G11B5/4813

Abstract: A disk drive includes a disk and a head stack assembly. The head stack assembly includes an actuator arm assembly that includes first and second stamped actuator arms. The first stamped actuator arm may include a first arm portion, a first body portion and a coil-supporting portion for supporting a coil of a VCM. The first body portion defines a first contact surface. The second stamped actuator arm may include a second arm portion and a second body portion, the second body portion defining a second contact surface. According to one embodiment, the first and second stamped actuator arms may be attached to one another such that the first contact surface faces and contacts the second contact surface.

Abstract translation: 磁盘驱动器包括磁盘和磁头堆叠组件。 头部堆叠组件包括致动器臂组件，其包括第一和第二冲压的致动器臂。 第一冲压致动器臂可以包括第一臂部分，第一主体部分和用于支撑VCM的线圈的线圈支撑部分。 第一主体部分限定第一接触表面。 第二冲压致动器臂可以包括第二臂部分和第二主体部分，第二主体部分限定第二接触表面。 根据一个实施例，第一和第二冲压的致动器臂可以彼此附接，使得第一接触表面面对并接触第二接触表面。

公开(公告)号：US07085108B1

公开(公告)日：2006-08-01

申请号：US10261435

申请日：2002-09-30

Applicant: Kamran Oveyssi ,  Chen-Chi Lin

Inventor： Kamran Oveyssi ,  Chen-Chi Lin

IPC: G11B5/55 ,  G11B21/08 ,  G11B33/14

CPC classification number: G11B5/5526 ,  G11B5/4813

Abstract: A disk drive includes a pivot-bearing cartridge configured to pivotally support the head stack assembly on the base of the drive. A tolerance ring is coupled to the pivot-bearing cartridge and includes a single sleeve defining an inner sleeve surface facing the pivot-bearing cartridge and an outer sleeve surface facing away therefrom, and a layer of dampening material disposed on the inner or outer sleeve surfaces so as to be in contact with the pivot-bearing cartridge or the bore surface of the through bore that is defined in the body portion of the head stack assembly, respectively.

Abstract translation: 磁盘驱动器包括枢轴承载盒，其构造成将磁头堆叠组件枢转地支撑在驱动器的基座上。 公差环联接到枢转轴承筒并且包括限定面向枢转轴承筒的内套筒表面的单个套筒和面向远离其的外套筒表面，以及设置在内套筒表面或外套筒表面上的润湿材料层 以便分别与限定在头部堆叠组件的主体部分中的枢轴轴承筒或通孔的孔表面接触。

公开(公告)号：US06982853B1

公开(公告)日：2006-01-03

申请号：US10404456

申请日：2003-03-31

Applicant: Kamran Oveyssi ,  Ken L. Chang

Inventor： Kamran Oveyssi ,  Ken L. Chang

IPC: G11B5/54

CPC classification number: G11B5/4833

Abstract: An arm assembly of 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 arm assembly for a disk drive includes steps of providing a flat sheet of material and stamping an arm assembly from the sheet such that the stamped arm assembly includes first and second actuator arm portions and one or more bendable portions integrally joining the first and second actuator arm portions.

Abstract translation: 盘驱动器的致动器臂组件的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与第一和第二致动器臂部分整体接合的一个或多个可弯曲部分。 制造用于盘驱动器的臂组件的方法包括以下步骤：提供平板材料并从片材冲压臂组件，使得冲压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， 第一和第二致动器臂部分。

公开(公告)号：US06947251B1

公开(公告)日：2005-09-20

申请号：US10724345

申请日：2003-11-26

Applicant: Kamran Oveyssi ,  Raffi Codilian

Inventor： Kamran Oveyssi ,  Raffi Codilian

IPC: G11B5/55

CPC classification number: G11B5/5526

Abstract: A disk drive includes a disk, a voltage supply, a head stack assembly and a switching circuit. The head stack may include a coil portion that includes a coil assembly having first and second wound coils. The switching circuit is electrically coupled to the voltage supply and to the coil assembly, and is configured to selectively switch the first and second wound coils between a first configuration and a second different configuration in which the first wound coil is electrically in parallel with the second wound coil.

Abstract translation: 磁盘驱动器包括磁盘，电压源，磁头堆叠组件和开关电路。 磁头堆叠可以包括线圈部分，其包括具有第一和第二缠绕线圈的线圈组件。 开关电路电耦合到电压源和线圈组件，并且被配置为在第一构造和第二不同构造之间选择性地切换第一和第二绕组线圈，其中第一绕组线圈与第二绕组线圈电平行于第二绕组线圈 绕线圈。

公开(公告)号：US06906897B1

公开(公告)日：2005-06-14

申请号：US10377210

申请日：2003-02-28

Applicant: Kamran Oveyssi

Inventor： Kamran Oveyssi

IPC: G11B5/55 ,  G11B21/08

CPC classification number: G11B5/5569

Abstract: A disk drive includes a magnetic element having first and second magnets extending radially with respect to an axis of rotation of an actuator. The disk drive further includes a main coil. The main coil includes first and second radial segments. The first radial segment overlaps the first magnet throughout a full range of motion of the actuator. The second radial segment overlaps the second magnet throughout the full range of motion of the actuator. The disk drive further includes a secondary coil which is separately energized from the main coil. The secondary coil is configured to produce magnetic forces upon the actuator substantially parallel to the actuator longitudinal axis. The secondary coil includes a lateral segment disposed perpendicular to the actuator longitudinal axis and overlapping the first and second magnets throughout the full range of motion of the actuator.

Abstract translation: 磁盘驱动器包括具有相对于致动器的旋转轴线径向延伸的第一和第二磁体的磁性元件。 磁盘驱动器还包括主线圈。 主线圈包括第一和第二径向段。 第一径向段在致动器的整个运动范围内与第一磁体重叠。 第二径向段在致动器的整个运动范围内与第二磁体重叠。 磁盘驱动器还包括从主线圈分开供电的次级线圈。 次级线圈构造成在致动器上产生大致平行于致动器纵向轴线的磁力。 次级线圈包括垂直于致动器纵向轴线设置的横向段，并且在致动器的整个运动范围内与第一和第二磁体重叠。

公开(公告)号：US06741428B1

公开(公告)日：2004-05-25

申请号：US09823743

申请日：2001-03-30

Applicant: Kamran Oveyssi

Inventor： Kamran Oveyssi

IPC: G11B2108

CPC classification number: F16C19/54 ,  F16C2370/12 ,  G11B19/2009

Abstract: A spindle motor for use in a disk drive includes a spindle motor base. The spindle motor further has a spindle motor hub rotatably attached to the spindle motor base. The spindle motor further has a motor shaft in mechanical conmmunication with the spindle motor base. The spindle motor further has an inner ball bearing set surrounding the motor shaft. The inner ball bearing set has a first inner race and a first outer race. The first inner race is attached to the motor shaft. The spindle motor has 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.

Abstract translation: 用于磁盘驱动器的主轴电动机包括主轴电机底座。 主轴电动机还具有可旋转地附接到主轴电机底座的主轴电动机毂。 主轴电机还具有与主轴电机底座进行机械调节的电机轴。 主轴电机还具有围绕电机轴的内滚珠轴承组。 内滚珠轴承组具有第一内圈和第一外圈。 第一个内圈连接到电机轴上。 主轴电机具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。

公开(公告)号：US06710981B1

公开(公告)日：2004-03-23

申请号：US10209828

申请日：2002-07-31

Applicant: Kamran Oveyssi ,  Chunjer C. Cheng

Inventor： Kamran Oveyssi ,  Chunjer C. Cheng

IPC: G11B555

CPC classification number: G11B5/5552

Abstract: A disk drive includes a voice coil motor (VCM) having a narrow coil angle and a magnet magnetized with two or three pole pairs. The VCM magnet may define first, second and third sections, the second section being magnetically polarized in an axial direction that is opposite to that of the first and third sections. The first radial leg of the VCM coil faces the second section and the second radial leg faces the third section when the head is positioned at a non-operational position. The first radial leg faces the first section and the second radial leg faces the second section when the head is reading and/or writing to the data portion of the disk. Alternatively, the VCM magnet defines first and second sections that are magnetized in opposite axial directions. The first and second radial legs of the VCM coil respectively face the first and the second sections when the head is positioned over the data portion of the disk and only the first radial leg faces the second section when the head is at a non-operational position.

Abstract translation: 磁盘驱动器包括具有窄线圈角的音圈电机（VCM）和用两个或三个极对磁化的磁体。 VCM磁体可以限定第一，第二和第三部分，第二部分在与第一和第三部分相反的轴向上被磁极化。 当头部位于非操作位置时，VCM线圈的第一径向支腿面向第二部分，而第二径向支腿面向第三部分。 当头读取和/或写入盘的数据部分时，第一径向腿面向第一部分并且第二径向腿面向第二部分。 或者，VCM磁体限定在相反的轴向上被磁化的第一和第二部分。 当头部位于盘的数据部分上方时，VCM线圈的第一和第二径向腿部分别面对第一和第二部分，并且当头部处于非操作位置时，仅第一径向腿面向第二部分 。

公开(公告)号：US06462914B1

公开(公告)日：2002-10-08

申请号：US09704188

申请日：2000-10-31

Applicant: Kamran Oveyssi ,  Shawn E. Casey ,  Jason T. Weaver ,  Mitchell D. Dougherty

Inventor： Kamran Oveyssi ,  Shawn E. Casey ,  Jason T. Weaver ,  Mitchell D. Dougherty

IPC: G11B555

CPC classification number: G11B5/5521

Abstract: The present invention may be regarded as a disk drive comprising a disk, an actuator arm comprising a head, and a voice coil motor for actuating the actuator arm to position the head radially over the disk. The voice coil motor comprises a first magnet for generating a first magnetic flux, and a rotary voice coil yoke comprising a magnetic flux conductor shaped to form an air gap with respect to the first magnet, the magnetic flux conductor comprising a first end having a first reluctance and a second end having a second reluctance, wherein the first reluctance is substantially lower than the second reluctance such that the magnetic flux conductor guides the first magnetic flux through the air gap and through the first end. A voice coil is wrapped around at least part of the magnetic flux conductor for conducting a current to generate a second magnetic flux such that at least part of the second magnetic flux is within the air gap for interacting with the first magnetic flux.

Abstract translation: 本发明可以被认为是包括盘，包括头部的致动器臂和用于致动致动器臂以将头部径向定位在盘上的音圈电动机的盘驱动器。 音圈电动机包括用于产生第一磁通量的第一磁体和包括相对于第一磁体形成气隙的磁通导体的旋转音圈磁轭，该磁通导体包括具有第一磁通的第一端 磁阻和具有第二磁阻的第二端，其中所述第一磁阻基本上低于所述第二磁阻，使得所述磁通导体将所述第一磁通量引导通过所述气隙并且穿过所述第一端。 音圈缠绕在磁通导体的至少一部分上，用于传导电流以产生第二磁通量，使得至少部分第二磁通量位于气隙内，以与第一磁通相互作用。

公开(公告)号：US5822155A

公开(公告)日：1998-10-13

申请号：US626525

申请日：1996-04-02

Applicant: Kamran Oveyssi ,  Andrew John Hudson ,  Walter Butler

Inventor： Kamran Oveyssi ,  Andrew John Hudson ,  Walter Butler

IPC: G11B21/22

CPC classification number: G11B21/22

Abstract: A magnetic latch assembly for immobilizing a read/write head of a disk drive is provided which magnetically couples to an actuator assembly housing the read/write head with enhanced force. A disk drive which includes the magnetic latch assembly is also provided. The magnetic latch assembly includes a magnet and a magnet holder including ferromagnetic material which at least partially surrounds the magnet and provides a medium through which flux produced by one pole of the magnet travels to an opposing pole of the magnet. The latch assembly magnetically couples the actuator assembly by contacting the actuator assembly in an area adjacent one of the poles of the magnet. In one embodiment, the magnet holder includes ferromagnetic material which surrounds the magnet. In another embodiment, the magnet holder includes a plurality of ferromagnetic flanges which at least partially surround the magnet.

Abstract translation: 提供一种用于固定磁盘驱动器的读/写磁头的磁性闩锁组件，其磁耦合到以增强的力容纳读/写头的致动器组件。 还提供了包括磁性闩锁组件的磁盘驱动器。 磁性闩锁组件包括磁体和磁体保持器，其包括铁磁材料，其至少部分地围绕磁体并且提供磁体的一个磁极产生的磁通行进到磁体的相对极的介质。 闩锁组件通过在与磁体的一个磁极相邻的区域中接触致动器组件而将致动器组件磁耦合。 在一个实施例中，磁体保持器包括围绕磁体的铁磁材料。 在另一个实施例中，磁体保持器包括至少部分围绕磁体的多个铁磁凸缘。

公开(公告)号：US5545937A

公开(公告)日：1996-08-13

申请号：US478270

申请日：1995-06-07

Applicant: John C. Dunfield ,  Kamran Oveyssi

Inventor： John C. Dunfield ,  Kamran Oveyssi

IPC: F16C39/06 ,  H02K5/167 ,  H02K7/09 ,  H02K21/22 ,  H02K7/14

CPC classification number: F16C17/08 ,  F16C25/045 ,  F16C32/0425 ,  H02K5/167 ,  H02K7/09 ,  F16C2370/12 ,  H02K21/22

Abstract: 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.