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Disk Drive patents



      

This page is updated frequently with new Disk Drive-related patent applications.




Date/App# patent app List of recent Disk Drive-related patents
07/21/16
20160210990 
 Disk drive head suspension tail with a noble metal layer disposed on a plurality of structural backing islands patent thumbnailDisk drive head suspension tail with a noble metal layer disposed on a plurality of structural backing islands
A head suspension assembly for a disk drive includes a load beam and a laminated flexure that comprises a stainless steel layer, a copper trace layer, and a dielectric layer between the stainless steel layer and the copper trace layer. The laminated flexure includes a flexure tail that extends away from the load beam to a flexure tail terminal region.
Western Digital Technologies, Inc.


07/21/16
20160209891 
 Mounting  hard disk drive and electronic device patent thumbnailMounting hard disk drive and electronic device
A mounting apparatus includes a bottom plate, a supporting frame supported by the bottom plate for receiving a hdd, a receiving frame attached to the bottom plate, a latching member slidably coupled to the supporting frame, and a first elastic member coupled with the latching member. The supporting frame includes a base plate detachably engaging with the bottom plate, two opposite side plates each defining at least one through hole, two pivoting plates pivotably coupled to the side plates, and an extending plate defining an opening.
Hon Hai Precision Industry Co., Ltd.


07/21/16
20160208364 
 Separation of recycled rare earths patent thumbnailSeparation of recycled rare earths
Extraction of rare earths from end-of-use machinery having rare earth magnets provides a closed-loop process towards recycling rare earths from comingled devices having embedded magnets such as motors, generators and disk drives. A low temperature process selectively leaches the magnet material from mixed scrap containing shredded fragments of the machinery which includes other metals such as steel and copper.
Worcester Polytechnic Institute


07/14/16
20160203838 
 Disk drive, control method thereof, and driver ic patent thumbnailDisk drive, control method thereof, and driver ic
According to one embodiment, a disk drive is disclosed. The drive includes a motor which rotates a magnetic disk, an actuator which moves a head provided for the magnetic disk, and a driver circuit which drives the motor and the actuator.
Kabushiki Kaisha Toshiba


07/14/16
20160203097 
 Solid-state optical drive and solid-state storage server patent thumbnailSolid-state optical drive and solid-state storage server
The present invention discloses a content delivery network (cdn) based on solid-state optical drive (sso). Like a solid-state (hard) drive (ssd) is a solid-state version of a hard-disk drive (hdd), the sso is a solid-state version of cd-tower.
Hangzhou Haicun Information Technology Co., Ltd.


07/14/16
20160202912 
 Assigning priorities to data for hybrid drives patent thumbnailAssigning priorities to data for hybrid drives
A hybrid drive includes multiple parts: a performance part (e.g., a flash memory device) and a base part (e.g., a magnetic or other rotational disk drive). A drive access system, which is typically part of an operating system of a computing device, issues input/output (i/o) commands to the hybrid drive to store data to and retrieve data from the hybrid drive.
Microsoft Technology Licensing, Llc


07/14/16
20160202739 
 Disk drive carriers and mountable hard drive systems with improved air flow patent thumbnailDisk drive carriers and mountable hard drive systems with improved air flow
The side profile of a hard drive assembly may be configured with one or more open areas to allow cooling air to pass side-to-side through a lateral flow channel provided by a cavity defined in the base portion of the hard drive assembly. Corresponding and complementary open areas may be also be defined in mating drive carrier assembly side components to allow passage of lateral side-to-side cooling air through the base portion flow channel of a hard drive assembled to the drive carrier assembly to form a mountable hard drive system that is installed into a storage enclosure.

07/07/16
20160196843 
 Multilayer disk drive motors having out-of-plane bending patent thumbnailMultilayer disk drive motors having out-of-plane bending
Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal on which a motor is mounted.
Hutchinson Technology Incorporated


06/30/16
20160191508 
 Methods and systems for block sharding of objects stored in distributed storage system patent thumbnailMethods and systems for block sharding of objects stored in distributed storage system
The present disclosure provides systems and methods for sharding objects stored in a distributed storage system. In accordance with one embodiment disclosed herein, a block sharding technique is used.

06/30/16
20160190885 
 Spindle motor and disk drive apparatus patent thumbnailSpindle motor and disk drive apparatus
A spindle motor includes a stationary portion and a rotating portion arranged to rotate about a central axis extending in a vertical direction with respect to the stationary portion. The stationary portion includes a stator portion including a stator core including an annular core back and a plurality of tooth portions arranged to extend radially outward from the core back, and coils wound around the plurality of tooth portions; an outside surface press fitted to an inside surface of the core back; and a fixing member arranged at least on an upper surface of the core back.

06/30/16
20160190875 

Spindle motor and disk drive apparatus


A stationary portion of a spindle motor includes a stator portion and an outside surface. The stator portion includes a stator core and coils.

06/30/16
20160188249 

System and erasing a storage medium


A method and system for erasing data stored in a storage medium of a computer system is disclosed. According to one embodiment, a booting parameter of an operating system of the computer system is changed to a data erasure program.

06/30/16
20160184915 

Nozzle for connecting or disconnecting solder joints between head bonding pads in a hard disk drive, and laser soldering or reflowing tool with the same


A nozzle for connecting or disconnecting solder joints between head bonding pads of in a hard disk drive, includes a nozzle body including a tip, the tip disposed at a distal end of the nozzle body and configured to deliver or reflow a solder ball in proximity to head bonding pads; and a central duct disposed along a central axis of the nozzle body and configured to convey the solder ball to or from the tip. The tip includes a front face facing to a trailing edge of a slider, a back face facing to a top surface of a suspension supporting the slider, and two side faces adjacent to the front face and back face respectively, and at least one interference-free structure is provided at two adjacent faces of the tip at least, thereby no interference happens between the tip and elements adjacent to the slider during the operation..

06/23/16
20160179683 

Ssd caching system for hybrid storage


A ssd caching system for hybrid storages is disclosed. The caching system for hybrid storages includes: a solid state drive (ssd) for storing cached data, separated into a repeated pattern cache (rpc) area and a dynamical replaceable cache (drc) area; and a caching managing module, including: an input/output (i/o) profiling unit, for detecting i/o requests for accesses of blocks in a hard disk drive (hdd) during a number of continuously detecting time intervals, and storing first data corresponding to first blocks being repeatedly accessed at least twice in individual continuously detecting time intervals to the rpc area sequentially; and a hot data searching unit, for detecting i/o requests for accesses of a hdd during a independently detecting time interval, and storing second data corresponding to second blocks being accessed at least twice in the independently detecting time interval to the drc area sequentially..

06/23/16
20160179379 

System and data management across volatile and non-volatile storage technologies


A system and method for allocating different temperature data to storage devices within a computer system including inexpensive non-volatile storage, such as hard disk drive (hdd) storage devices; expensive non-volatile storage, such as solid-state drive (ssd) storage devices; and expensive volatile storage, such as system cache memory. The system and method allocates cold to warm data having access frequencies up to a first access frequency threshold to inexpensive non-volatile storage; allocates hot data having access frequencies greater than the first access frequency value and ranging up to a second access frequency threshold, to expensive non-volatile storage; and allocates very hot data having access frequencies greater than the second access frequency value and which resides during normal system operation in expensive volatile storage, to said inexpensive non-volatile storage..

06/16/16
20160171995 

Piezoelectric disk drive suspension motors having plated stiffeners


Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal on which a motor is mounted.
Hutchinson Technology Incorporated


06/16/16
20160171994 

Pro-active protection of communication devices that are senstive to vibration or shock


A communication device includes a vibroscope or an accelerometer for detecting vibration or shock, a hard disk drive for storing data, and a wireless communication transceiver. In response to detecting vibration or shock, the communication device automatically broadcasts an alert message that identifies a physical location of the communication device at the time that the vibration or shock is sensed.
International Business Machines Corporation


06/16/16
20160167181 

Method and forming a hard disk drive base plate with an extended height


A method for forming a hard disk drive base plate with an extended height is described. The method may include forming an initial hard disk drive base plate, forming a filler shim, and forming a shroud.
Cheung Woh Technologies Ltd.


06/09/16
20160165742 

Server


A server includes a chassis, a transfer board, a hard disk drive cage, two hard disk drive trays, two mother board trays, two mother boards, first hard disk drives and second hard disk drives. The chassis has an accommodation space.
Inventec Corporation


06/09/16
20160164365 

Spindle motor and disk drive apparatus


A base portion made of a metal includes an upper surface, a lower surface, and a base portion through hole. An insulation sheet portion is located on the lower surface, and covers at least a portion of the base portion through hole.
Nidec Corporation


06/09/16
20160164364 

Spindle motor and disk drive apparatus


A base portion of a spindle motor includes a base portion through hole passing therethrough from an upper surface to a lower surface thereof. Coils include a lead wire drawn out from above the upper surface downwardly from the lower surface through the base portion through hole.
Nidec Corporation


06/09/16
20160163351 

Write interference reduction when reading while writing to a hard disk drive media


A hard disk drive device and a method and apparatus for control of the hard disk drive is provided. The hard disk drive includes disk media, a slider head, a head gimbal assembly and a control means.
Marvell International Ltd.


06/09/16
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 (10, 12, 16, 18), a rotary motor component (14) which is rotatably mounted relative to the stationary motor component by means of a fluid dynamic bearing system, a bearing gap (20) disposed between the fixed (10, 12, 16, 18) components and the rotary motor component (14) and filled with a bearing fluid, and has at least one open end, at least one sealing gap (34) for sealing the open end of the bearing gap (20), at least one cover cap (30) for covering the sealing gap (34), which is secured to the rotatable motor component (14), a disk clamp (44) for attachment of at least one magnetic storage disk (48) on the rotatable motor member (14) and an electromagnetic drive system (40, 42) to drive the rotatable motor member (14). According to the invention, the disk clamp (44, 156) is centered on a peripheral surface of the cover cap (30, 118)..
Minebea Co., Ltd.


06/09/16
20160163349 

Spindle motor, disk drive apparatus, and manufacturing base unit of spindle motor


A method of manufacturing a base unit of a spindle motor includes the steps of: defining a base plate including a support fitting portion; fitting a support to a hole portion passing through the support fitting portion; measuring an inclination of the support fitting portion; calculating a laser irradiation area and a laser irradiation output based on the inclination; irradiating the support fitting portion with a laser beam; and measuring the inclination of the support fitting portion again. The base plate is made of a metal, and is defined by press working, casting, or forging.
Nidec Corporation


06/09/16
20160163343 

Apparatus and setting slider surface potential


An apparatus includes a slider body of a disk drive. The slider body is electrically coupled to a plurality of end bond pads.
Seagate Technology Llc


06/09/16
20160163342 

Apparatus, systems and processes for reducing a hard disk drive's access time and concomitant power optimization


Rotational latency is reduced in a standard conventional form factor hdd system by replacing, for example, the prior art rotary arm actuator of a conventional hdd, with one or more belts and pulleys and one or more read/write heads mounted on, or otherwise associated with the belts. Multiple scaled iterations facilitate energy savings and power optimized systems, without compromise to data access performance..
L2 Drive Llc


06/09/16
20160162405 

Caching of data in data storage systems by managing the size of read and write cache based on a measurement of cache reliability


A disk drive is disclosed that varies its caching policy for caching data in non-volatile solid-state memory as the memory degrades. As the non-volatile memory degrades, the caching policy can be varied such that the non-volatile memory is used more as a read cache and less as a write cache.
Western Digital Technologies, Inc.


06/09/16
20160161996 

Electronic device with bracket for disk drive


Electronic device includes a host and a base supporting the host. The base includes a base body and a protecting member.
Hon Hai Precision Industry Co., Ltd.


06/02/16
20160156170 

Server with power source protection system and power source protection method


A server with a power source protection system and a method thereof are provided herein, in which the server includes a power-controlling device and a hard disk drive connector. The power-controlling device includes an input unit that receives an input voltage, an output unit that outputs a load voltage, a switching unit coupled between the input unit and the output unit, and a processor coupled to the switching unit.
Inventec Corporation


06/02/16
20160154749 

Computer having buffering circuit for hard disk drive


A computer has a buffering circuit, a power supply circuit, and a controlling circuit. The computer can perform charging operations when the power supply circuit provides power terminals, and perform discharging operations when the power supply circuit powers off unexpected, to provide power to the controlling circuit.
Hon Hai Precision Industry Co., Ltd.


06/02/16
20160154718 

Rebuilding drive data


The present disclosure provides a system that includes an array of disk drives and a controller communicatively coupled to the array of disk drives. The controller is to identify, within the array of disk drives, a predictive failed disk.
Hewlett-packard Development Company, L.p.


06/02/16
20160154709 

Point-in-time backups of a production application made accessible over fibre channel and/or iscsi as data sources to a remote application by representing the backups as pseudo-disks operating apart from the production application and its host


The present enhancement leaves production systems undisturbed while a remote application (“testbed application”) executes elsewhere (“testbed host”). An intermediary computing device hosts an enhanced pseudo-disk driver, pseudo-disks, and an enhanced media agent.
Commvault Systems, Inc.


06/02/16
20160153490 

Fluid bearing apparatus, spindle motor, and disk drive apparatus


A fluid bearing apparatus includes a stationary member and a rotating member. A bearing surface of the stationary member and a bearing surface of the rotating member are arranged opposite to each other with a minute gap intervening therebetween.
Nidec Corporation


05/26/16
20160148640 

Performance pacing for hard disk drives


To provide enhanced operation of data storage devices and systems, various systems, apparatuses, methods, and software are provided herein. In a first example, a data storage device is provided.
Hgst Netherlands B.v.


05/26/16
20160148639 

Screwless disc clamp


Provided herein is an apparatus that includes a radially extending through hole in an interperimeteral region and a radial channel extending from the through hole to an inner perimeter of an annulus. The radially extending through hole and the radial channel define a compliant flange operable to engage an annular groove.
Seagate Technology Llc


05/26/16
20160147443 

Caching policies for solid state disks


Aspects of the disclosure provide for caching policies for solid state drives. A method of the disclosure includes receiving a request to perform a write operation of a first size; determining, by a processing device, a threshold of input/output i/o size in view of an average bandwidth of a solid state drive (ssd) and information related to i/o operations performed by at least one of the ssd or a hard disk drive (hdd); comparing the first size with the threshold of i/o size; and determining, by the processing device, whether the write operation is to be performed on the ssd or on the hdd in view of the comparison..
Red Hat, Inc.


05/19/16
20160140996 

Disk separator plates and making disk separator plates for hard disk drives


A hard disk drive with a multiple disk stack normally utilizes disk separator plates near the disk surfaces to reduce wind induced vibrations in the disks and the read/write heads. The manufacturing methods currently used to make these separator plates, metal casting and machining, or injection molded plastic, or extruding and machining, or cold forging tends to be expensive and creates unwanted weight and bulk without the desired precision.
Intri-plex Technologies, Inc.


05/19/16
20160140995 

Servo processor receiving photodetector signals


An optical disk drive and a digital servo method for the optical disk drive includes controlling functions of the optical disk drive with a microprocessor. Low-pass filtered and gain-adjusted versions of photodetector output signals resulting from an illumination of an optical disk are received.
Optical Devices, Llc


05/19/16
20160139840 

Error tolerant or streaming storage device


A method of storing data includes receiving general purpose (gp) data and special error tolerant or streaming (ets) data, storing the gp data using a data storage method, and storing the ets data using a different data storage method which affects the access rate, resilience to errors, data integrity, storage density, or storage capacity. The storage medium, which can include a disk drive, flash memory, or holographic memory, is utilized differently depending on the required quality of service in aspects including block size, storage of error correction codes, utilization of error correction codes, storage area density, physical format pattern, storage verification, or reaction to failed storage verification.

05/19/16
20160139821 

Tier based data file management


A hierarchal storage management method is provided. The method includes detecting a first portion of a first file being deleted from a hybrid storage device including a hard disk drive (hdd) memory device, a solid state drive (ssd) memory device, and an archival storage memory device.
International Business Machines Corporation


05/12/16
20160133825 

Piezoelectric layer, piezoelectric component, piezoelectric actuator, piezoelectric sensor, hard-disk drive and ink jet printer


A piezoelectric layer made of potassium sodium niobate which is a perovskite type compound represented by the formula abo3, wherein, in the raman spectroscopy measurement of the piezoelectric layer which is performed while the piezoelectric layer is rotated in the in-plane direction, the measured intensity of the lattice vibration region of the perovskite type compound in the raman spectrum obtained in polarized raman spectroscopy measurement (yx) has a periodicity of approximately 90°, wherein, the polarized raman spectroscopy measurement (yx) is performed while the piezoelectric layer is rotated in the in-plane direction and raman scattering light is polarized in a direction perpendicular to that of the incident light.. .
Tdk Corporation


05/12/16
20160132080 

Tool-less mounting device for hard disk drive


A tool-less mounting device for hard disk drive (hdd) is provided. The mounting device has a tray, at least one flexible member, a backplane, and at least one hdd.
Inventec Corporation


05/12/16
20160131190 

Pivot assembly bearing and disk drive device


A pivot assembly bearing includes: a sleeve, a shaft inserted into the sleeve, a pair of rolling bearings disposed between the sleeve and the shaft such that the rolling bearings are separated apart from each other in an axial direction. The rolling bearings include an inner ring fixed to the shaft, an outer ring fixed to the sleeve, and a rolling element provided between the inner ring and the outer ring.
Minebea Co., Ltd.


05/05/16
20160127706 

True-color environment correction device and true-color environment correction method


An object is to accurately provide the user with color fidelity information irrespective of difference in the time of day when or in the location where a commercial product is photographed and prevent mismatching of the user's selection of the commercial product. A color fidelity environment correction system 1 includes a camera 2 and a computer 5 that is connectable with the camera 2, a tablet terminal 3 and a display device 4 and is configured to include a cpu, a rom, a ram, a hard disk drive and a bus line.
Papalab Co., Ltd.


05/05/16
20160125205 

Session-level-restriction for universal serial bus storage devices


A system and method of implementing slr for a usb device of an information handling system is disclosed herein. An os may load a disk driver stack and a volume driver stack for the usb device, where the usb device is being enumerated by a first driver.
Dell Products L.p.


05/05/16
20160124681 

Tracking hot areas of disk drive


Methods, apparatuses, systems, and devices are described for determining use of areas of a disk drive. In one method, a score of an area node of the disk drive may be increased each time the area node is accessed during a time interval of a series of time intervals.
Seagate Technology Llc


05/05/16
20160124677 

Optical cold storage


Various embodiments (“systems”) are described for transferring data from a primary storage (e.g., magnetic disk drives, solid state drives, etc.) to an optical cold storage rack. The optical cold storage rack may include many physical optical storage disks, but a much smaller number of burners and readers (e.g., optical disk drives).
Facebook, Inc.


05/05/16
20160124652 

Methods and systems for determining hardware sizing for storage array systems


Methods and systems for enabling sizing of storage array resources are provided. Resources of a storage array can include, for example, cache, memory, ssd cache, central processing unit (cpu), storage capacity, number of hard disk drives (hdd), etc.
Nimble Storage, Inc.


04/28/16
20160118068 

Pivot assembly bearing and hard disk drive device


A pivot assembly bearing includes a shaft, a sleeve provided coaxially with the shaft, and a pair of rolling bearings arranged to be separated from each other in an axial direction between the shaft and the sleeve. The sleeve includes a ventilation path configured to communicate a region surrounded by the shaft, the pair of rolling bearings, and the sleeve with the outside of the sleeve..
Minebea Co., Ltd.


04/28/16
20160117233 

Quasi disk drive for testing disk interface performance


Embodiments relate to diagnostic evaluation of hardware components of a computer machine. A conventional storage device is replaced with a modified storage device.
International Business Machines Corporation


04/21/16
20160111117 

Flexure chain blank sheet for disk drive suspension


A flexure chain blank sheet includes frame units. Each frame unit includes a frame portion, and flexure elements.

04/21/16
20160111116 

Flexure chain blank sheet for disk drive suspension


A flexure chain blank sheet includes a plurality of frame units. Each of the frame units includes a frame portion, and a plurality of flexure elements arranged within the frame portion.

04/21/16
20160110118 

Storage of data reference blocks and deltas in different storage devices


A data storage architecture is composed of an array of a flash memory solid state disk and a hard disk drive or any nonvolatile random access storage that are intelligently coupled by an intelligent processing unit such as a multi-core graphic processing unit. The solid state disk stores seldom-changed and mostly read reference data blocks while the hard disk drive stores compressed deltas between currently accessed i/o blocks and their corresponding reference blocks in the solid state disk so that random writes are not performed on the solid state disk during online i/o operations.

04/14/16
20160104515 

Re-workable sealed hard disk drives, cover seals therefor, and related methods


Cover seals for sealing of a re-workable hard disk drive comprise: a metallic substrate; an outwardly exposed adhesive layer on at least a portion of a major surface of the metallic substrate; and an adhesive-free border comprising a fusible metal alloy layer surrounding the adhesive layer. The cover seals can be used to form sealed hard disk drives, wherein a cover seal is attached to an exterior surface of the cover of an enclosed hard disk drive housing so that an adhesive layer of the cover seal covers the entire junction where the base and cover components of the enclosed housing meet and a metallic joint adheres a perimeter of the cover seal to the base of the enclosed housing..

04/14/16
20160104503 

Low resistance ground joints for dual stage actuation disk drive suspensions


A stainless steel dual stage actuated disk drive head suspension baseplate including a plated electrical contact area having nickel and gold. The baseplate can be heat treated.

04/14/16
20160103624 

System and raid management, reallocation, and restripping


The present disclosure relates to systems and methods for raid restriping. One method includes selecting an initial raid device for migration based on at least one score, creating an alternate raid device, moving data from the initial raid device to the alternate raid device, and removing the initial raid device.

04/14/16
20160103470 

Electronic device system


An electronic device system includes an enclosure with a side plate, a main board, a first hard disk drive, and a first bracket. The main board and the first bracket are located inside the enclosure.

04/07/16
20160099631 

Spindle motor and hard disk drive including the same


A spindle motor includes a stator including a sleeve, and a rotor forming a bearing clearance with the sleeve, the bearing clearance being filled with a lubricating fluid. The rotor includes a stopper member forming a sealing part with the sleeve, in which a liquid-vapor interface is formed, and at least one of the stopper member and a surface of the sleeve disposed to face the stopper member is provided with an impact alleviating part formed therein to alleviate external impacts..
Samsung Electro-mechanics Co., Ltd.


03/31/16
20160093792 

Thin-film piezoelectric material element, manufacturing the same, head gimbal assembly, hard disk drive, ink jet head, variable focus lens and sensor


A thin-film piezoelectric material element includes a lower electrode film, a piezoelectric material film, and an upper electrode film, the lower electrode film, the piezoelectric material film and the upper electrode film are laminated sequentially. An upper surface of the piezoelectric material film is a concavity and convexity surface having a convex part and a concave part, the convex part is a curved surface convexly projected, and the concave part is a curved surface concavely hollowed, the upper electrode film is formed on the concavity and convexity surface.
Sae Magnetics (h.k.) Ltd.


03/31/16
20160092555 

Data aging in hana using grading attributes


According to an embodiment of the present disclosures, systems, methods, and non-transitory computer-readable mediums having program instructions thereon, provide for process of segregating data from database tables into different layers depending on the frequency of access to the data—so that each layer of the data can be stored in an appropriate storage mechanism. For example, infrequently-accessed data can be stored in a hard disk drive (hdd) and frequently-accessed can be stored in random-access memory (ram).

03/24/16
20160086625 

Circuit connection pad design for improved electrical robustness using conductive epoxy


Disk drives including head suspensions within dual stage actuation systems have improved electrical connectivity between electrical connection pads from flexible circuits as are applied to head suspension assemblies with piezoelectric microactuators as also provided to head suspension assemblies. A more robust electrical connection provides for better control of microactuator actuation for fine movements and positioning of magnetic read/write heads relative to disk data tracks as part of dual stage actuated suspension systems.
Seagate Technology Llc


03/24/16
20160085649 

Disk drive repair


According to an example, to repair a disk drive error, a determination is made if a disk field-repair is possible, if an operating system recovery image is available, and if any failed sectors exist in the operating system recovery image. A user is prompted to begin a repair.
Hewlett-packard Development Company, L.p.


03/24/16
20160085457 

Write reordering in a hybrid disk drive


A hybrid drive and associated methods increase the rate at which data are transferred to a nonvolatile storage medium in the hybrid drive. By using a large nonvolatile solid state memory device as cache memory for a magnetic disk drive, a very large number of write commands can be cached and subsequently reordered and executed in an efficient manner.
Kabushiki Kaisha Toshiba


03/17/16
20160078896 

Spindle motor and hard disk drive including the same


A spindle motor includes a stator, and a rotor forming a bearing clearance with the stator. The rotor is provided with an insertion groove formed therein into which a portion of the stator is inserted, and first and second sealing parts having liquid-vapor interfaces formed therein, respectively, are formed inside and outside the insertion groove, respectively.
Samsung Electro-mechanics Co., Ltd.


03/17/16
20160078895 

Spindle motor and hard disk drive including the same


A spindle motor includes a stator, and a rotor forming a bearing clearance filled with a lubricating fluid, together with the stator. At least one of the rotor and the stator is provided with a circulation hole through which air bubbles contained in the lubricating fluid are discharged, and a portion of the bearing clearance connected to one end portion of the circulation hole and disposed at an outer side of the circulation hole in a radial direction has a width allowing an amount of force applied to the other side of the air bubble to be less than that of force applied to one side of the air bubble when one side of the air bubble is disposed in the circulation hole and the other side thereof is disposed in the portion of the bearing clearance connected to the circulation hole..
Samsung Electro-mechanics Co., Ltd.


03/17/16
20160078054 

File system extension system and method


A file system extension (fse) system and method that permits an on-disk-structure (ods) incorporating spatially diverse data (sdd) to be stored on a daisy-chain of multiple sata disk drive storage elements (dse) that are coupled together with one or more pass-thru disk drive controllers (ptddc) is disclosed. The ptddc chain appears as a single logical disk drive to a host computer system (hcs) via a host bus adapter (hba) or pass-thru input (pti) port.



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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