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6917491 |
Hard disk drive having disk protector and magnetic head protector
A hard disk drive includes a housing having a base plate and a cover plate, and a spindle motor installed on the base plate. At least one magnetic disk to store data is installed at the spindle...
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6912105 |
Magnetic disk device with firmly fixed yokes
The present invention provides a magnetic disk device which firmly fixes the yokes of a rotary actuator between a base and a cover. The yoke can be made compact and the movable range of the rotary...
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6900961 |
Disk drive having a head disk assembly enclosure including insert molded components
Disclosed is disk drive having a molded head disk assembly enclosure including insert molded components and methods for manufacturing the same. In one aspect, the invention may be regarded as a...
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6898058 |
Composite substrate for use in magnetic recording-and-reproducing device
Disclosed is an improved composite substrate for use in a magnetic recording-and-reproducing device. It comprises an “L”-shaped main plate and a separate sub-plate. The “L”-shaped main...
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6898075 |
Electronic instrument holding device
Various embodiments of the present invention relate to an electronic instrument holding device and, more particularly, to an electronic instrument holding device having a circuit board. The present...
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6894865 |
Portable information storage device
A portable storage device, such as a USB portable disk drive, comprises a main body and a rotation arm. The main body comprises a storage portion, a connection portion and a back portion. The...
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6876513 |
Rotary disk type storage device
A rotary disk type storage device has a casing comprised of a box-shaped base casing, whose one side is opened, and a cover casing closing the open side of the base casing, in which accommodated...
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6873492 |
Magnetic media with readable topographical features in combination with a slider-mounted non-magnetic transducer
Magnetic patterned media comprise topographical features readable with a slider-mounted non-magnetic transducer sensitive primarily to a local aerodynamic boundary condition, in addition to a...
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6862156 |
Disk drive including a disk plate having a damping member
A disk drive includes a disk drive base and a spindle motor including a spindle motor hub rotatably coupled to the disk drive base. The disk drive further includes a disk having a disk surface...
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6854174 |
Method for inserting a disk drive into a peripheral bay chassis
In an aspect, the invention features a method for inserting a disk drive into peripheral bay chassis. A disk drive is received into a base of a disk drive carrier, the base having an uppermost...
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6856490 |
Flex cable assembly with improved flex cable dynamic loop characteristics
A flex cable assembly for use in a disc drive data storage device includes a laminated flex cable and a flex cable support. The flex cable provides electrical communication paths between a moveable...
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6845006 |
Enclosure case for hard-disk-drive case
An outer enclosure case according to the present invention is substantially flat and rectangular in appearance and accommodates an inner hard-disk-drive case that contains a hard disk and a drive...
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6844996 |
Disk drive comprising a ratchet arm applied to a disk and disengaged through windage generated by the disk rotating
A disk drive is disclosed comprising an enclosure, a disk, a head actuated radially over the disk, a spindle motor for rotating the disk, and a ratchet arm having a base end connected to the...
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6839199 |
Disk drive including electrical traces integrally formed upon disk drive housing
A disk drive for use with a host electronic unit including spindle motor drive circuitry. The disk drive includes a disk drive housing, and a spindle motor rotatably attached to the disk drive...
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6836387 |
Hard disk drive unit having a reduced size and cost
A carriage arm and a hard disk drive unit including the carriage arm, where the carriage arm includes a head slider mounting part and a voice coil attachment part integrally formed with each other...
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6831810 |
Disk drive enabling simultaneous assembly of HSA and disk pack
A disk drive has an enclosure that includes a first portion and a second portion that is configured to mate with the first portion. A spindle motor is attached to the first portion and a disk is...
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6826018 |
Disk drive with head supporting device
A disk drive comprises a recording medium, spinning means, a head supporting device having a support arm disposed in a rotatable manner about a bearing unit in a radial direction as well as a...
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6822824 |
Flex circuit bracket which establishes a diffusion path for a data storage device housing
A flex circuit bracket for use in a data storage device housing and a method of fabrication therefor. The flex circuit bracket supports a flex circuit assembly and establishes a diffusion path...
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6822823 |
Hard disk drive with electrically conductive sheet for electrostatic discharge protection
A hard disk drive has an enclosure with disk construction members and is characterized by covering the enclosure with an electrically conductive sheet. The electrically conductive sheet protects...
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6819526 |
Holding member for information storage disk and information storage disk drive device
An information storage disk holding member for holding an information storage disk in position in an information storage disk drive device, the holding member being made of glass-ceramics in which...
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6816341 |
Hard disk drive utilizing second lubricant over a first lubricant having a phosophezine group
A recording element or a reproducing element in a head generates heat that decomposes lubricating agent adhered to a slider surface near the recording/reproducing element of the head. This...
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6816337 |
Magnetic recording device having a particular frame plate configuration
The magnetic recording unit is enclosed with a case body ( 15, 16 ). A cartridge insertion slot ( 18 ) for inserting a cartridge housing a disk, which is a recording medium, is formed at the rear...
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6813114 |
Magnetic recording medium having a disk drive and cartridge
A magnetic recording medium comprising a card-type disk drive and a magnetic disk cartridge. The disk drive has a length of 38 to 55 mm, a width of 35 to 51 mm, and a thickness of 3 to 5 mm, and...
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6809895 |
Hard disk drive having a plurality of head disk assemblies
A hard disk drive (HDD) for detecting and reading a signal written on a hard disk using a head. The hard disk drive includes: a plurality of head disk assemblies each having at least one...
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6801386 |
Damper design on pivot bearing shaft by vibration reduction
A pivot cartridge assembly with improved resonance characteristics. One end of the pivot bearing shaft is mounted to the base of the disc drive, and the other end is secured to the cover of the...
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6798613 |
Method of correcting Z-height errors during assembly of a hard disk drive
A disk drive includes a drive housing, an actuator arm mounted to the drive housing, a head suspension assembly secured to the actuator arm, a spindle secured to the drive housing, a storage disk...
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6781779 |
Magnetic recording medium, its production method and magnetic recording apparatus
A magnetic recording medium for recording information by forming a magnetic pattern for information thereon by a magnetic head, which is a longitudinal magnetic recording medium having a coercive...
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6782449 |
Adaptively modifying a read caching algorithm based upon the detection of a vibration state within a rotating media storage device
A rotating media storage device (RMSD) includes a cache memory and a microprocessor for executing a read caching algorithm for storing data in the cache memory. The microprocessor modifies the read...
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6781829 |
Device for reducing the noise level of a component with moving parts and for cooling the same
The invention pertains to a device for reducing the noise level of, and for cooling, a Component ( 1 ) with moving parts, such as a hard disk in a PC system. The device comprises a Container ( 2 )...
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6778352 |
Disk drive shock absorption mechanism
The present invention is a shock absorption mechanism for reducing the damage experienced by disk drives, including damage caused by a magnetic head contacting the surface of a magnetic disk, as a...
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6773833 |
Magnetic storage medium having improved thermal stability and a magnetic storage device using such a high-density magnetic storage medium
A magnetic storage medium includes first and second magnetic layers provided on a support substrate such that the first and second magnetic layers have respective first and second magnetizations in...
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6764734 |
High modulus and high damping plastic composite disc substrate for improved servo control by injection and co-injection molding
A substract for use in a data storage system is disclosed. The substrate includes at least one core layer comprising at least one plastic or plastic composite material exhibiting a modulus of about...
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6765751 |
Disk drive system with enclosed removable cartridge including voice coil/head/disk assembly
Disclosed is a magnetic storage cartridge adapted to be removably received by a drive base. The magnetic storage cartridge comprises a housing that includes at least one magnetic disk rotatable...
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6762906 |
Disk drive for removable disk cartridges and receivable into a PCMCIA port of a computer
A disk drive device includes a protective case having an upper case and a lower case. The disk drive device has a form such that the disk drive device can be inserted into and removed from a PCMCIA...
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6757131 |
Magnetic disk apparatus
For a magnetic disk apparatus for reading and writing information to a magnetic disk in the present invention, the recessed portion of the cover of the magnetic disk apparatus has a two-level...
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6754020 |
Magnetic recording media and magnetic recording/reproduction apparatuses
Magnetic recording media with thermal fluctuation resistance and low noise made compatible are obtained by using as magnetic layers a combination of a first magnetic material having a first Curie...
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6745946 |
Device for scanning an electromagnetically suspended information carrier
A device for reading and/or writing a disc-shaped information carrier which comprises a support element of a magnetizable material along its circumference. An electromagnetic unit cooperates with...
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6747830 |
Perpendicular magnetic recording/reading apparatus
The maximum external magnetic field of a magnetic recording medium longitudinal component which is applied to a magnetic recording medium is smaller than an absolute value H n of a magnetic field...
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6747840 |
Method and apparatus for fine tuning disc drive cover to improve acoustical performance
A disc drive system includes a base with sidewalls, a spindle attached to the base, and at least one disc attached to the spindle. A cover is also included for attaching to the base. The cover and...
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6735043 |
Disc drive protective cover to improve shock robustness
A shock protection assembly for a disc drive includes a protective cover mounted as the lowest portion of the disc drive. The disc drive includes a base plate and two mounting rails, wherein a...
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6728062 |
Disk drive base design for modifying airflow generated from rotation of disk
The base of a disk drive defines an interior shroud surface. The interior shroud surface is configured to follow a portion of the curvature of the disk at a distance from the outer diameter of the...
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6724560 |
Head assembly employing microactuator in recording medium drive
A head suspension supporting a head at the tip end is allowed to swing at the tip end of a carriage in a recording disk drive. A microactuator is interposed between the head suspension and the...
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6724566 |
Acoustic damper for a disc drive
A disc drive device includes a base plate, a voice coil motor operably attached to the base plate, a top cover attached to the base plate with at least two perimeter fasteners and at least one...
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6715032 |
Hard disk onto which table information depending on model is written, and hard disk drive adopting such a disk
A hard disk on which table information varying depending on the model of a hard disk drive (HDD) is directly written includes: a hard disk assembly (HDA) having a hard disk for storing table...
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6711007 |
Computer with a mechanism for securing a storage medium drive and a mother board
A computer with a security mechanism, for securing a motherboard and a storage medium drive such as a hard disk, is provided. The computer comprises a chassis, a pan, a first latch, a locking...
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6709773 |
Magnetic anisotrophy of soft-underlayer induced by seedlayer
A perpendicular magnetic recording medium having a substrate, a seedlayer on the substrate and a magnetic underlayer on the seedlayer, the magnetic underlayer having an easy axis of magnetization...
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6699602 |
Amorphous magnetic recording medium, process for producing the same and magnetic recording and reproduction apparatus
An amorphous magnetic recording medium comprising a substrate and an amorphous magnetic layer, where a magnetic domain formation-controlling layer comprising a main phase and 1 to 3 kinds of...
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6697215 |
Index signal output device and floppy disk drive
An index signal output device where a magnetic flux detector is moved in the direction of a relevant tangent to the circumference of a rotor yoke so that the phase difference between an index...
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6697216 |
Disk drives with upstream-oriented heads
The present invention is directed towards a disk drive that comprises at least one head carrying assembly that includes an actuator arm, a suspension attached to the actuator arm, and a head...
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6697217 |
Disk drive comprising a coating bonded to a printed circuit board assembly
A disk drive is disclosed comprising a head disk assembly (HDA) including an enclosure for housing a disk and a head actuated radially over the disk. A printed circuit board assembly (PCBA) is...
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