| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 360980010 | Plural disks | 25 |
| 20080198505 | Height adjustment mechanism - A height adjustment mechanism disposed in a body is provided, which includes two axle seats disposed on the body, a spindle, two support parts fixed on the spindle, and a stop component. Each of the support parts has a fitting hole, and the spindle is rotatably disposed in the body, and drives the support parts to rotate simultaneously, the spindle has a positioning part having a plurality of grooves, and each of the two support parts has a plurality of asymmetric end surfaces. Any one of the end surfaces is selectively pressed against a plane, such that different height differences exist between the body and the plane. The stop component is corresponding to the positioning part, and is movably disposed in the body, and the stop component moves between a stop position that is clamped in the grooves and a release position where the spindle is allowed to rotate freely. | 08-21-2008 |
| 20090067086 | STORAGE DEVICE - A storage device includes plural recording media, a housing configured to accommodate the plural recording media, a plate that is fixed and extends round between two adjacent recording media in the housing, plural sliders each of which is mounted with a magnetic head that is configured to record information in or reproduce the information from a corresponding one of the plural recording media, and plural arms, each of which is mounted with one of the plural sliders only on a single surface, and configured to move the one of the plural sliders. | 03-12-2009 |
| 20090185311 | MULTIPLE ACCESS HARD DISK - Multiple access hard disk. Multiple read-write heads are implemented within a single information storage device. The information storage device can be any of a variety of information storage devices including a hard disk drive (HDD), a CD-ROM (Compact Disc Read Only Memory) drive, a DVD (Digital Video Disc or Digital Versatile Disc) drive, a read-write capable CD (Compact Disc) drive, or a read-write capable DVD drive. Each read-write head may couple to a separate user (or separate device, and/or separate network). Alternatively, more than one of the read-write heads may couple to a single user (or single device, and/or single network). The manner in which each of these read-write heads may be implemented within the information storage device can be varied. If desired, the read-write heads can be arranged in a spoke-like arrangement around a circumference of a circular, spin-capable storage media. | 07-23-2009 |
| 20090225471 | DISK DEVICE - A disk device includes: an enclosure to enclose a cavity; a plurality of disk media rotatably mounted in the enclosure and arranged along a rotation axis; and heads, movably mounted in the enclosure, to read/record data from/onto corresponding disk media; at least a first one of the disk media exhibiting a structural rigidity different than at least a second of the disk media. | 09-10-2009 |
| 20140078616 | FLUID DYNAMIC MOTOR WITH REDUCED VIBRATIONS - An apparatus includes a hub, a first disk, a second disk, and a spacer. The hub is supported for relative rotation about a stationary component. The first disk is mounted to the hub with a first dynamic resonance mode associated therewith. The second disk is mounted to the hub with a second dynamic resonance mode associated therewith. The spacer is positioned between the first disk and the second disk, wherein the spacer is operable to cause the first dynamic resonance mode to be different from the second dynamic resonance mode. | 03-20-2014 |
| 360980020 | Axially fixed flexible disks | 1 |
| 20190147909 | DISK DRIVE HAVING MULTIPLE DISKS ACCESSIBLE BY A REDUCED NUMBER OF READ/WRITE HEADS | 05-16-2019 |
| 360980070 | Rotational drive detail | 5 |
| 20090195923 | Heat assisted spindle motor of a hard disk drive - A hard disk drive with a spindle motor that rotates a disk. When the disk drive is exposed to low temperatures a current can be provided to the spindle motor to heat the motor. For example, a DC current can be provided to the spindle motor. The current flowing through the spindle motor coil generates heat. The current can be provided for a predetermined time interval to sufficiently heat the spindle motor so that the fluid bearings of the motor can operate. The current is terminated and then an AC current is provided to the spindle motor to cause motor rotation. | 08-06-2009 |
| 20100002334 | SPINDLE SYSTEM, ELECTROMAGNETIC CONVERSION PROPERTY EVALUATING APPARATUS AND INFORMATION STORAGE DEVICE - A spindle system includes: a spindle motor section controlled to rotate at a predetermined speed; and a clamp base section disposed at an upper part of the spindle motor section and having screw holes that are formed in a side surface of the clamp base section and extend in a radial direction. The spindle system further includes: screws respectively inserted into the screw holes and changing a center of gravity of the clamp base section; a clamp fixing section that fixes the spindle motor section and the clamp base section; and an elastic member disposed between the clamp base section and the clamp fixing section, and contacted by and pressed against the screws. | 01-07-2010 |
| 20100053805 | HARD DISK DRIVE AND METHOD OF MANUFACTURE - A method of manufacturing a hard disk drive includes measuring an imbalance value including an imbalance position with respect to a rotation center of a rotation shaft of the hub, with respect to each of a plurality of disks installed on a hub of a spindle motor to rotate the disks, allowing different imbalance positions of the disks to approach each other in a circumferential direction by applying an impact to the hard disk drive, and correcting the imbalance value by applying an impact to the hard disk drive in a direction opposite to the imbalance positions of the disks approaching each other with respect to the rotation shaft of the hub, to move the imbalance positions of the disks approaching each other in a radial direction of the disks with respect to the rotation center of the rotation shaft of the hub. | 03-04-2010 |
| 20110122528 | DUAL SPINDLE STORAGE DEVICE - An apparatus and associated method are provided whereby first and second spindles operably rotate first and second overlapping storage discs, respectively. First and second data transfer members are operably disposed adjacent storage areas of the respective storage discs. An edge of the first disc moves in a prescribed close spatial separation from a rotating surface of the second spindle so that the second spindle strips windage, generated by the rotation of the first disc, away from the second data transfer member. | 05-26-2011 |
| 20160163350 | SPINDLE MOTOR FOR DRIVING A HARD DISK DRIVE - The invention relates to the spindle motor for driving a hard disk drive, comprising: a fixed engine component ( | 06-09-2016 |
| 360980080 | Seating of disks | 14 |
| 20080204928 | Clamping system for a data storage device - A clamping system includes a stack of storage media discs that includes an annular outer disc surface. A clamp includes a clamp surface that faces the outer disc surface. A ring is disposed between the clamp surface and the outer disc surface. The ring has a crested ring face with a circular crest line that contacts the clamp surface. | 08-28-2008 |
| 20080225434 | Clamping Device of Spindle Motor - Provided is a clamping device of a spindle motor including a body, a stopper, a weight, and an elastic member. The stopper is coupled to the body. The weight is coupled to the stopper. The elastic member elastically supports the stopper. | 09-18-2008 |
| 20080253019 | MAGNETIC MEDIUM STACK ASSEMBLY FOR A DATA STORAGE AND RETRIEVAL SYSTEM - A magnetic medium stack assembly includes a hub, a magnetic medium, and a clamp fixing the magnetic medium to the hub. The hub and clamp include engaging flange members that enable the hub and clamp to lock together without the use of external hardware or an adhesive. The clamp applies a substantially uniform compressive force on the magnetic medium, which helps reduce circumferential acceleration. | 10-16-2008 |
| 20080310049 | Fluid dyamic bearing with novel air-gap - A fluid dynamic bearing with a modified air-gap is disclosed. One embodiment provides a clamp adjacent to the fluid dynamic bearing, the clamp for clamping at least one disk with respect to the fluid dynamic bearing. In addition, a cap is also provided proximal to a shaft of the fluid dynamic bearing, the cap having an outer end proximal to the clamp such that an air-gap is provided between the outer end of the cap and the clamp. | 12-18-2008 |
| 20100128389 | ROBOTIC END-EFFECTOR FOR COMPONENT CENTER ALIGNMENT AND ASSEMBLY - A robotic end-effector for high-speed precision alignment and assembly of components has a holding device operable for temporarily holding a second component. The second component is to be aligned and assembled to a first component. The robotic end-effector has a course alignment device operable for locating the holding device with respect to a locating feature that is coupled with the first component. The robotic end-effector has a retractor operable for disengaging the course alignment device from the locating feature. The robotic end-effector has a moveable base whereby lateral compliance is provided for the holding device, enabling motion of the second component with respect to the first component, thereby enabling fine alignment of the second component with the first component when the second component touches the first component. | 05-27-2010 |
| 20100232060 | DISK STACK ASSEMBLY WITH SPINDLE MOTOR HUB HAVING IMPROVED DISK-SUPPORTING FLANGE - An improved disk stack assembly for a hard disk drive (HDD) includes a generally cylindrical hub with flange having a downward sloping conical flange surface. The conical flange surface is defined between a radially inner circular ridge and a radially outer circular edge. The bottom disk in the stack is in contact with the flange inner circular ridge. The disk stack assembly also includes a disk clamp with a contact surface having a contact rim that is in contact with either the radially inner portion of the top disk in the stack or a spacer ring. The clamp contact rim is located at approximately the same radial distance from the hub's central cylindrical axis as the flange circular ridge so that the clamping force is applied to the disks close to the area where the disk stack is supported on the conical flange surface. | 09-16-2010 |
| 20110109990 | FIXING APPARATUS AND DISK DRIVE ASSEMBLY HAVING THE SAME - A fixing apparatus for securing an HDD, includes a carrier containing the HDD and a plurality of fixtures to secure the HDD in the carrier. The carrier includes a bottom frame and two opposite sidewalls connected to two opposite edges of the bottom frame. Each fixture includes a post and a cushion. The cushions are fixed in the sidewalls and abut against two opposite sides of the HDD. The posts are extended through the cushions and inserted into the two opposite sides of the HDD to hold the HDD spaced apart from the bottom frame and the sidewalls of the carrier. | 05-12-2011 |
| 20110128651 | ELECTRICALLY CONDUCTIVE SPACER AND DISK DRIVE INCLUDING THE ELECTRICALLY CONDUCTIVE SPACER - A disk drive. The disk drive includes a motor, a hub coupled to a spindle shaft of the motor, at least two disks each having a center hole and being coupled to the hub, and a spacer having a center hole. The spacer is disposed around the hub such that the hub is disposed within the center hole of the spacer; and, the spacer is sandwiched between and in contact with the two disks to define spacing between the disks. The spacer includes at least two conductive rings and the conductive rings are secured between the two disks. The spacer also includes a damping sheet configured to absorb vibration between the conductive rings, and a conductive ring-shaped spring having a spring characteristic in a radial direction of the disks to make a diameter variable. Moreover, the conductive ring-shaped spring is in contact with both of the two conductive rings. | 06-02-2011 |
| 20110176241 | DISK SPACER FOR DATA STORAGE DEVICE AND HARD DISK DRIVE HAVING THE SAME - A hard disk drive includes a hub on which a plurality of disks are rotatably assembled, and a spacer assembled to the hub to be alternately arranged with the disks to separate the disks and having at least one area of an inner wall surface that elastically contacts and is pressed against an outer wall surface of the hub for centering with respect to the hub. | 07-21-2011 |
| 20110181983 | METHOD OF CENTERING A DISK OF HARD DISK DRIVE - A method of centering a disk of a hard disk drive includes arranging a disk on an upper end portion of a hub on which a plurality of disks are rotatably assembled, and assembling the disk on the hub by vibrating the hub. Accordingly, the disks and/or spacers may be easily assembled on the hub, a time of centering may be relatively much reduced, and a superior centering quality may be obtained. | 07-28-2011 |
| 20110188155 | METHOD OF COMPENSATING FOR IMBALANCE OF HARD DISK DRIVE, APPARATUS TO PERFORM COMPENSATION, AND HARD DISK DRIVE MANUFACTURED THEREBY - A method of compensating for an imbalance of a hard disk drive includes biasing a plurality of disks in one direction with respect to a rotational shaft of a spindle motor hub, measuring an amount of imbalance of the plurality of disks with respect to the rotational shaft of the spindle motor hub, and compensating the amount of imbalance of the plurality of disks by hitting the hard disk drive in the opposite direction to the one direction in which the plurality of disks are biased to reduce the amount of imbalance with an amount of impact predetermined based on a measured imbalance amount. | 08-04-2011 |
| 20120300344 | DISK DRIVE HAVING A SHEET METAL CLAMP WITH A STAMPED ANNULAR PROTRUDING DISK CONTACT FEATURE - A disk drive includes a spindle motor attached to a disk drive base. The spindle motor includes a hub that rotates about a spindle rotation axis. An annular disk is mounted on the hub. A clamp is attached to the hub. The clamp has a body portion that is stamped from a metal sheet. The clamp also includes an annular rib that protrudes from the stamped sheet metal body portion towards the annular disk. The annular rib includes an annular contact surface that may be lapped to enhance flatness and that contacts the annular disk. The annular rib also includes inner and outer side walls that are each normal to the annular contact surface. | 11-29-2012 |
| 20140293479 | LOCKING DISK CLAMP - Provided herein is an apparatus, including a plurality of teeth extending from an outer perimeter of an annular disk clamp to an inner perimeter of the annular disk clamp and an annular groove in an outer perimeter of a hub, wherein the plurality of teeth do not engage the annular groove of the hub when the disk clamp is unlocked into an unlocked form, and wherein the plurality of teeth engage the annular groove of the hub when the annular disk clamp is locked into a locked form, clamping at least one disk onto the hub at a mounting point for the at least one disk. | 10-02-2014 |
| 20140293480 | NOTCHED DISK CLAMP - Provided herein is an apparatus, including a plurality of disk clamp notches spaced about an outer lip of an annular disk clamp; an annular groove in an outer perimeter of a hub; and a mounting point on the hub for at least one disk, wherein the annular disk clamp occupies the annular groove of the hub, clamping the at least one disk onto the hub at the mounting point for the at least one disk. | 10-02-2014 |
