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Disk Drive patents



      
           
This page is updated frequently with new Disk Drive-related patent applications. Subscribe to the Disk Drive RSS feed to automatically get the update: related Disk RSS feeds. RSS updates for this page: Disk Drive RSS RSS


Spindle motor and hard disk drive including the same

Spindle motor and hard disk drive including the same

Storage device with a cover supporting portion

Storage device with a cover supporting portion

Storage device with a cover supporting portion

Hard disk drive bypass channel having a close-sided voice coil motor

Date/App# patent app List of recent Disk Drive-related patents
10/09/14
20140300997
 Suspension assembly having a microactuator grounded to a flexure patent thumbnailSuspension assembly having a microactuator grounded to a flexure
Disclosed is a suspension assembly for a disk drive that includes: a mounting plate having a through-hole; a microactuator mounted on the mounting plate; a flexure attached to the mounting plate, the flexure including a trace layer that includes a ground trace; and a conductive epoxy bonded to the microactuator extending through the through-hole to bond to the flexure, wherein the epoxy extends to the ground trace of the flexure such that the microactuator is grounded to the flexure.. .
10/09/14
20140300990
 Spindle motor and hard disk drive including the same patent thumbnailSpindle motor and hard disk drive including the same
There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a sleeve installed on a base member and having a circulation hole; a shaft inserted into the sleeve; a rotor hub installed on an upper end of the shaft; and a thrust member installed in an installation groove formed in an upper portion of the sleeve and forming a connection part, the connection part allowing the circulation hole to be in communication with a sealing part formed by the sleeve and the rotor hub and having a liquid-vapor interface of a lubricating fluid disposed therein, wherein the connection part is formed between the sleeve and the thrust member in a circumferential direction, and at least any one part of a radial outer portion of the connection part has an axial gap smaller than that of another part thereof in the circumferential direction..
10/09/14
20140300989
 Storage device with a cover supporting portion patent thumbnailStorage device with a cover supporting portion
A disk drive assembly having a base, a cover, a post extending from the base toward the cover, and a latch movably mounted on the post such that the post extends there through, wherein the post comprises a cover supporting portion configured to support the cover, and prevent the cover from compressing the latch and causing the latch from contacting both the cover and the base simultaneously when a load is applied to a portion of the cover above the latch.. .
10/09/14
20140300988
 Hard disk drive bypass channel having a close-sided voice coil motor patent thumbnailHard disk drive bypass channel having a close-sided voice coil motor
Approaches to improving head positioning accuracy in a hard disk drive, by suppressing airflow disturbances that would otherwise cause unwanted component vibration, include a voice coil motor having a sidewall spanning a gap between the vcm upper yoke and lower yoke. This vcm sidewall also serves as the inner wall of a bypass channel, for diverting airflow away from the actuator arm and associated components..
10/02/14
20140297942
 Data cache for a storage array patent thumbnailData cache for a storage array
Embodiments of the present disclosure provide for a storage system that includes an array of disk drives and a controller communicatively coupled to the array of disk drives. The controller includes a dual purpose cache.
10/02/14
20140296114
 Lubricating oil composition for hydrodynamic bearing and hdd motor using the same patent thumbnailLubricating oil composition for hydrodynamic bearing and hdd motor using the same
There is provided a lubricating oil composition for a hydrodynamic bearing including: 95 to 99 wt % of an ester-based base oil; and 1.0 to 5.0 wt % of mixed oil containing at least two kinds of ester-based oils different from the ester-based base oil. According to the present invention, a hard disk drive (hdd) motor is manufactured using the lubricating oil composition for a hydrodynamic bearing having a low viscosity, a small evaporation loss, and improved oxidation stability at a room temperature, whereby the impact resistance and low-temperature operation stability of the hydrodynamic bearing motor may be improved..
10/02/14
20140293765
 Information processing apparatus and information processing method patent thumbnailInformation processing apparatus and information processing method
An information processing apparatus of the present invention includes an hdd status monitoring part 11 that monitors the use environment or use status of a hard disk drive; an hdd status recording part 13 that records the history of the use environment or use status monitored in the hdd status monitoring part 11; a comparing/determining part 14 that compares the history recorded in the hdd status recording part 13 with a predetermined condition; a display part 15 that can output a comparison result in the comparing/determining part 14; and a control part 12 that controls the display part 15 to output the comparison result based on the comparison result in the comparing/determining part 14. When the history satisfies the predetermined condition, the control part 12 controls the display part 15 to output the comparison result.
10/02/14
20140293485
 Flexure, head gimbal assembly and disk drive unit with the same, and manufacturing method thereof patent thumbnailFlexure, head gimbal assembly and disk drive unit with the same, and manufacturing method thereof
A flexure for a suspension of a head gimbal assembly includes a substrate layer, a dielectric layer formed thereon, a conducting layer formed on the dielectric layer, and an insulating cover layer covered on the conducting layer, wherein at least one window is configured at a surface of the insulating cover layer thereby a portion of the conducting layer is exposed, and an antistatic adhesive is adhered to at least one side wall of the window and contacted with the conducting layer. The new structure of the flexure can avoid or eliminate electro-static discharges enduringly without dipping water.
10/02/14
20140293481
 Hard disk drive patent thumbnailHard disk drive
Disclosed herein is a hard disk drive. The hard disk drive according to a preferred embodiment of the present invention includes: at least one disk; a spindle motor rotating the disk; a head stack assembly rotatable to write and read data on and from the disk; a plate-shaped base rotatably supporting the head stack assembly and supporting the spindle motor; and at least one elongated pin disposed on the base.
10/02/14
20140293478
 Spindle motor and hard disk drive including the same patent thumbnailSpindle motor and hard disk drive including the same
There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a sleeve installed on a base member and having a circulation hole; a shaft inserted into the sleeve; a rotor hub installed on an upper end portion of the shaft; and a thrust member installed in an installation groove formed in an upper portion of the sleeve and forming a connection part, the connection part allowing the circulation hole to be in communication with a sealing part formed by the sleeve and the rotor hub and having a liquid-vapor interface disposed therein, wherein the connection part is formed between the sleeve and the thrust member in a circumferential direction, and at least any one part of the connection part has a radial gap wider than that of another part thereof in the circumferential direction..
10/02/14
20140293477
Spindle motor and hard disk drive including the same
There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes a sleeve fixedly installed on a base member and including a circulation hole formed in an axial direction; a shaft rotatably inserted into the sleeve; a rotor hub fixedly installed on an upper end portion of the shaft; and a thrust member installed in an installation groove formed in an upper portion of the sleeve in the axial direction and forming a connection part allowing the circulation hole to be in communication with a sealing part formed by the sleeve and the rotor hub and having a liquid-vapor interface, wherein the connection part is formed between the sleeve and the thrust member in a circumferential direction, and a gap on any one side of the connection part in a radial direction is larger than a gap on the other side thereof..
10/02/14
20140293476
Spindle motor and hard disk drive including the same
There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes a base member including a mounting part, and a hydrodynamic bearing assembly having a portion thereof fitted and fixed to the mounting part, wherein any one of the mounting part and the hydrodynamic bearing assembly includes a welding reinforcing protrusion protruding from a lowest portion thereof in an axial direction in a portion in which the mounting part and the hydrodynamic bearing assembly face each other, in a direction toward the other of the mounting part and the hydrodynamic bearing assembly, and overlapping the other thereof in the axial direction, and the mounting part and the hydrodynamic bearing assembly may be coupled to each other by lap welding in the axial direction through the welding reinforcing protrusion..
09/25/14
20140286149
Automatic on-drive sync-mark search and threshold adjustment
A hard disk drive includes a processor to automatically adjust a threshold level for finding sync-marks. The processor determines all possible sync-mark patterns for a particular pattern length and analyzes each pattern with reference to real world data.
09/25/14
20140285926
Copper residual stress relaxation reduction means for hard disk drive slider gimbals
A hard drive gimbal trace circuit includes: a stainless steel gimbal strut (sgst) configured to support a transducer and nullify a natural pitch angle of a flexure from mechanical-coarse adjustment of the sgst; traces forming a trace structure, and being plastically deformed at a high strain region from the mechanical-coarse adjustment of the sgst; and a first protrusion and a second protrusion being at least partially disposed under the high strain region. The sgst has an edge which is disposed on the transducer side to be spaced apart from the traces in the high strain region and extends substantially parallel to the traces.
09/25/14
20140285917
Write avoidance areas around bad blocks on a hard disk drive platter
A method and computer program product identify the location of a bad block on a disk platter of a hard disk drive, determine an avoidance area extending from the bad block, and prevent data from being written to the avoidance area.. .
09/18/14
20140283111
Spatial security for stored data
Systems and methods of providing spatial security of data stored on a hard disk drive. A method includes associating a user with at least one track and/or sector of the hard disk drive.
09/18/14
20140281621
Stealth power management in storage array
Increased power savings is provided by powering down idle storage devices and emulating storage device responses to host requests which do not require data access. A virtual target emulates the hard disk drive, has information associated with the hard disk drive, and provides information in response to host requests to satisfy the host.
09/18/14
20140281606
Data storage power consumption threshold
A power consumption threshold is implemented to manage power consumed by a plurality of devices. A power consumption threshold may be selected for a data storage system having multiple drives.
09/18/14
20140281604
Autonomous power sparing storage
Power saving logic in a data storage system with multiple data storage devices is distributed from a central controller to each individual device. Power saving logic, including algorithms used to conserve power when the data storage device is not needed, are stored and executed on each individual data storage device.
09/18/14
20140281329
Priority command queues for low latency solid state drives
A method, apparatus, and system of a priority command queues for low latency solid state drives are disclosed. In one embodiment, a system of a storage system includes a command sorter to determine a target storage device for at least one of a solid state drive (ssd) command and a hard disk drive (hdd) command and to place the command in a ssd ready queue if the ssd command is targeted to a ssd storage device of the storage system and to place the hdd command to a hdd ready queue if the hdd command is targeted to an hdd storage device of the storage system, a ssd ready queue to queue the ssd command targeted to the ssd storage device, and a hdd ready queue to queue the hdd command targeted to the hdd storage device..
09/18/14
20140281224
Modular mass storage system
A system for storing data includes a rack, one or more data storage modules coupled to the rack, and one or more data control modules coupled to the rack. The data storage modules may include a chassis, two or more backplanes coupled to the chassis, and one or more mass storage devices (for example, hard disk drives) coupled to the backplanes.
09/18/14
20140281218
Storage device powered by a communications interface
A storage device including a communications interface configured to receive data and power, a plurality of disk drives configured to be powered only by the power received by the communications interface, a controller configured to configure the plurality of disk drives as a redundant array of independent disks, a power regulator configured to transmit the received power from the communications interface to the plurality of disk drives, and a peak current reduction circuit configured to reduce peak current usage by the plurality of disk drives.. .
09/18/14
20140281214
Total quotas for data storage system
Quotas are tracked for user usage of hard disk drive space and offline backup storage space. The quota is enforced against the total space utilized by a user, not just high tier hard drive space usage.
09/18/14
20140281211
Fast mount cache
A fast mount cache is provided by any offline storage media for fast volume mount access. The fast mount cache may be used as the first level in a hierarchical storage configuration after the high performance tier for data having high access rates shortly after creation but decreases sharply as the data ages.
09/18/14
20140280395
Network coded storage with multi-resolution codes
Multi-resolution encoded files are stored on a plurality of disk drives using systematic network coded storage. In some embodiments, the stored files are used to provide video streaming services for users..
09/18/14
20140270333
Verifying a slider tray map
A hard disk drive manufacture process may use a database to track the sliders stored within a slider tray. Instead of requiring an operator to visually inspect each tray to confirm that the database information is accurate, the trays may be sent to a detection system that uses a computer vision technique to identify the total number of sliders in a tray.
09/18/14
20140268551
Enclosure high pressure push-pull airflow
High pressure fans are mounted in the middle of an enclosure to create a low pressure zone and a high pressure zone within the enclosure. The high pressure fans pull air through high density sets of hard disk drives in the back of an enclosure and push air through high density disk drives in the front of the enclosure.
09/18/14
20140268412
Spindle motor and hard disk drive including the same
There is provided a spindle motor, including: a rotating member including a shaft having a fixing groove disposed in a lower portion thereof, a hub base extending from an upper end of the shaft in an outer radial direction, and a magnet support part extending from an outer edge of the hub base downwardly in an axial direction; a sleeve rotatably supporting the rotating member; and a stopper including a fixed part inserted into the fixing groove and a flange part extending from an end of the fixed part in the outer radial direction, wherein the flange part includes a groove part formed by being recessed inwardly and an extension part extending from the groove part in the outer radial direction.. .
09/18/14
20140268411
Motor and disk drive apparatus
A motor includes a stationary portion and a rotating portion that is rotatable about a central axis extending in a vertical direction with respect to the stationary portion. The stationary portion includes a shaft and a cup portion.
09/18/14
20140268402
Methods and systems for optimized staggered disk drive spinup
An array may comprise a plurality of disk drives and a controller coupled to the plurality of drives. The controller may be configured to initiate spin-up of one or more first disk drives of the array; determine when each of the first disk drive(s) of the array for which spin-up was initiated reaches a predetermined spin rate that is less than a target spin rate at which the disk drive is ready to process data access commands; and initiate spin-up of one or more second disk drives of the array as the first disk drive(s) is determined to have reached the predetermined spin rate..
09/18/14
20140268398
Method and apparatus to reduce access time in a data storage device using coded seeking
Data blocks to be stored on a disk-based data storage device (e.g., a hard disk drive, etc.) are coded together to form a plurality of linearly independent network coded blocks. The network coded blocks are then stored on the data storage device.
09/18/14
20140268397
Hardware support of servo format with two preamble fields
A hard disk drive uses a second, reference burst field in a preamble to estimate burst phase and burst magnitude. Such estimations are used for position error signal integration and repeatable runout correction.
09/18/14
20140268386
Fly-height control and touchdown detection
An embedded contact sensor (ecs) element for fly-height control and touchdown detection. An embedded contact sensor (ecs) element with a resistance that changes with a temperature change, which senses a clearance change between a head slider and a disk of a disk drive.
09/18/14
20140265966
Disk drive
To provide a disk drive capable of inhibiting the occurrence of acoustic noise caused by a voltage pulse when the head is retracted using a speed control method using voltage obtained by rectifying a back electromotive force after the power source has been cut off from the rotation of a spindle motor. Retraction control circuit is used to control the on and off modes of transistors in accordance with the speed of vcm.
09/18/14
20140265724
Piezoelectric element, piezoelectric actuator, piezoelectric sensor, hard disk drive, and inkjet printer device
A piezoelectric element includes, as a piezoelectric layer, a thin film of potassium sodium niobate that is a perovskite compound represented by a general expression abo3, in which ta (tantalum) is substituted on both of an a site and a b site. Accordingly, the piezoelectric element is provided to increase a reliability of the piezoelectric element using the thin film of potassium sodium niobate and to improve piezoelectric characteristics thereof..
09/18/14
20140265723
Piezoelectric element, piezoelectric actuator, piezoelectric sensor, hard disk drive, and inkjet printer device
A piezoelectric element includes, as a piezoelectric layer, a thin film of potassium sodium niobate that is a perovskite compound represented by a general expression abo3, in which sr (strontium) is substituted on both of an a site and a b site and mn (manganese) is substituted only on the a site. Accordingly, the piezoelectric element is provided to decrease a leak current of the piezoelectric element using the thin film of potassium sodium niobate, to increase a withstand voltage thereof and to improve piezoelectric characteristics thereof..
09/18/14
20140263907
Hard disk drive mounting bracket
A hard disk drive mounting bracket allows for attaching multiple hard disk drives to a chassis and uses pre-existing chassis hardware, resulting in more efficient user of chassis space. A hard disk drive mounting bracket includes a base sheet.
09/18/14
20140263216
Hard drive data destroying device
Three systems for the destruction of the data storage portion of electronic media storage devices such as hard disk drives, solid state drives and hybrid hard drives. One system utilizes a mill cutter with which the hard drive has relative motion in the direction of the axis of the mill cutter to destroy the data storage portion.


Popular terms: [SEARCH]

Disk Drive topics: Disk Drive, Hard Disk Drive, Piezoelectric, Optical Disk Drive, Die Assembly, Circuit Board, Form Factor, Fastening Device, Storage Device, A Fastening Device, Scheduling

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