Abstract: The magnetic recording medium of the present invention has a pattern formed using a pattern-forming agent in a laminate of multiple layers including a base material and a magnetic recoding layer, wherein the pattern is recognized on the surface of the laminate opposite to the base material, and the pattern-forming agent is distributed through the thickness of the laminate, wherein a region between the center of the magnetic recording layer and a magnetic recording-reading side of the laminate has an area having a density gradient of the pattern-forming agent which gradually declines in the direction from the center of the magnetic recording layer to the magnetic recording-reading side.

Abstract: A data storage system with a controller that receives shock data from a shock detection sensor and methods utilizing such a controller are provided. The data storage system controller receives information or signals regarding shock events from a shock sensor, enabling the data storage system controller to take remedial action. The particular remedial action taken may be dependent on the severity of the detected shock event. The data storage system controller may receive information regarding shock events from shock sensors provided separately from the data storage system controller, allowing the data storage system controller to take remedial action that is tailored to the locale of a shock event.

Abstract: A motor includes a bearing mechanism, a stationary unit including a stator arranged radially outwards of the bearing mechanism, and a rotary unit supported by the bearing mechanism at the upper side of the stationary unit for rotation about a center axis with respect to the stationary unit. The rotary unit includes a substantially cylindrical closed-top rotor yoke having a cover portion arranged to cover the stator. The bearing mechanism includes a substantially cylindrical closed-bottom bush formed by a press work, a sleeve fixed inside the bush and provided with an upper portion protruding beyond the bush and a shaft inserted into the sleeve. An upper end of the bush is lower than or flush with an upper end of the stator in a direction parallel to the center axis.

Abstract: A library device includes: cells each containing a storage medium in a first or a second manner; a medium drive accessing and containing the medium differently from a manner of placing the medium in at least one of the cells; and a medium-transferring unit including a housing section housing the medium, and moving the housing section between the cells and the medium drive to transfer the medium. The unit includes: a support member supporting the housing section pivotably between a first and a second postures meeting the first and second manners; a movement-controlling system moving the support member so that the housing section faces the cells and medium drive; a medium-transferring system transferring the medium; a biasing member biasing the housing section toward the first posture; and a posture-changing member interfering with and thereby pivoting the housing section from the first posture to the second posture resisting the biasing member.

Abstract: An apparatus includes a magnetic layer, a heat sink layer, and a thermal resistor layer between the magnetic layer and the heat sink layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include an interlayer positioned between the magnetic layer and the thermal resistor layer.

Abstract: An integrated pivot-carriage for a hard disk drive for improving a pivot bonding process. Embodiments include a pivot-bearing assembly comprising an upper bearing, a lower bearing and a pivot-bearing spacer there between; a carriage comprising: a center-bore within which a pivot-shaft coupled with the pivot-bearing assembly is disposed; and a plurality of pivot-bonding glue dispensers, each of the pivot-bonding glue dispensers comprising: a glue inlet; a glue outlet; and an enclosing wall defining an interior flow passage between the glue inlet and the glue outlet, the interior flow passage configured for conveying bonding glue there through; and a glue receiving region coupling the glue outlet with a bearing of the upper and the lower bearing, the glue receiving region configured for receiving bonding glue dispensed thereto, thereby bonding the pivot-bearing assembly with the carriage.

Abstract: A hard disk drive flex cable assembly conveys data between a connector to a host system and a head stack assembly. It comprises a flex cable which in part has a first end for coupling to the connector, and a second end for coupling to the head stack assembly; and a stiffener coupled to the second end. The stiffener comprises an end formed to approximate a J-shape. A filling material is applied to the concave surface of the J-shape, whereby a dynamic response frequency of the flex cable assembly is moved away from a dynamic response frequency of the head stack assembly upon which the flex cable assembly is coupled.

Abstract: A method and system for providing a PMR pole in a magnetic recording transducer including an intermediate layer are disclosed. The method and system include providing a mask including a line on the intermediate layer. The method further include providing a hard mask layer on the mask and removing the line. Thus, an aperture in the hard mask corresponding to the line is provided. The method and system also include forming a trench in the intermediate layer under the aperture. The trench has a bottom and a top wider than the bottom. The method further includes providing a PMR pole, at least a portion of which resides in the trench.

Abstract: A system and method are disclosed for detecting a periodic sequence. A value detector module detects a plurality of values of a periodic sequence. In one embodiment, a transformation module transforms the plurality of values into transformed values. A confinement module confines the values to a limited set of confined values. A correlation module correlates the confined values with a plurality of instances of the periodic sequence. In addition, a selection module selects an instance of the periodic sequence with the highest correlation to the confined values as an observed periodic sequence.

Abstract: A disk device includes a disk moving mechanism for moving a disk between loading and unloading positions. There is a reader/writer for recording or playback of data with the disk in the loading position. In the disk device, a housing includes a main containing region, having a first base wall, for containing the reader/writer. An intermediate containing region is disposed to extend from one side of the main containing region, for partially containing the disk moving mechanism, the intermediate containing region having a second base wall positioned higher than the first base wall, for space saving below. A peripheral containing region is disposed to extend from one side of the intermediate containing region, for containing a portion of the disk protruded from the intermediate containing region, the peripheral containing region having a third base wall positioned higher than the second base wall, for space saving below.

Abstract: A library device comprises a cell, a drive, and an accessor. The cell is capable of accommodating a plurality of cartridges. The drive performs a recording or reproduction of data between the cartridges and the drive. The accessor carries the cartridges between the cell and the drive. The cell is provided with a first rack gear which extends in a direction in which the accommodated cartridges are arranged. The accessor comprises an accessor base and a feed block. The accessor base comprises a second rack gear. The second rack gear extends in the extension direction of the first rack gear. The second rack gear is formed in correspondence with the first rack gear. The feed block comprises a pinion gear, a driving unit, and a holding unit. The pinion gear is meshed with the first and second rack gears. The driving unit drives the pinion gear. The holding unit holds the cartridges.

Abstract: Methods and apparatus provide a refill configuration adjacent a back-edge that defines a height of a magnetoresistive read sensor. Milling through layers of the sensor forms the back-edge and may be initially conducted at a first angle of incidence greater than a second angle of incidence. In combination, an insulating material and a polish resistant material, such as a non-magnetic metal, disposed on the insulating material fills a void created by the milling. The sensor further includes first and second magnetic shields with the layers of the sensor along with the polish resistant material and insulating material disposed between the first and second magnetic shields.

Abstract: A method and system for providing a PMR pole in a magnetic recording transducer including an intermediate layer are disclosed. The method and system include providing a mask including a line on the intermediate layer. The line has at least one side, a top, and a bottom. The side(s) have an undercut such that the top of the line is wider than the bottom. The method further include providing a hard mask on the PMR transducer. The hard mask includes an aperture corresponding to the line. Thus, an aperture in the hard mask corresponding to the line is provided. The method and system also include forming a trench in the intermediate layer under the aperture. The trench has a bottom and a top wider than the bottom. The method further includes providing a PMR pole, at least a portion of which resides in the trench.

Abstract: An optical disc apparatus for enabling reduction of fluid noises accompanying with disc rotation, effectively, comprises a tray 5 provided to be able to comes in/out into/from said housing freely, a unit mechanism 5 provided together with the tray, in one body, a turntable 9a provided on the unit mechanism and configured to support a disc thereon, to be rotatable freely, a plural number of wall portions 5b to 5d formed on the tray surrounding the disc supported on the turntable from an outer periphery thereof, each of which has configuration like an arc around a rotation center of the turntable, a pickup 10 for doing straight-line motion within along a radius direction of a disc 4, and an opening 56, which is provided on the wall portion 5e locating at the position on the moving track of the pickup, for maintaining movement of the pickup, wherein the wall portion 5e is moved or stepped back to a side of an outer periphery of the turntable comparing to other wall portions.

Abstract: A sloped reader is disclosed that reduces skew between reader and written transitions in shingled writing. The reader is formed between surfaces of S1 and S2 shields that are aligned parallel to the sloped reader. A PMR writer is described that straightens transition curvature and reduces signal-to-noise ratio in shingled writing. In one embodiment, a symmetrical writer with a bowed trailing edge where two corners have a greater pole height than a center portion may be used for either right corner or left corner shingled writing. In a second embodiment, an asymmetrical writer is formed with a straight and sloped trailing edge such that the write corner has a greater pole height than the opposite corner on the trailing edge. The bowed angle in the symmetrical writer and slope angle in the asymmetrical writer is between 5 and 45 degrees and preferably between 10 and 30 degrees.

Abstract: The embodiments herein describe an apparatus and method for a reduced Z stack slot loading optical disc drive (ODD). In one embodiment, an optical disc mounting assembly can be used to chuck an optical disc to a turntable. The optical disc mounting assembly can include a hub spring for spring loading a hub and a clamping mechanism pivotally connected to the hub. In the described embodiment, in an extended position, the clamp is used to secure the optical disc to the turntable. The clamping mechanism can include a clamp pivotally attached to the hub at a pivot point. In the absence of the optical disc, the clamp is retracted and secured within a recess in the optical disc mounting assembly. In the presence of the optical disc, the mounting assembly chucks the optical disc to the turntable using the clamp and hub.

Abstract: A data storage system controller having a shock detection sensor and methods utilizing such a controller are provided. The data storage system controller receives information or signals regarding shock events from the associated shock sensor, enabling the data storage system controller to take remedial action. The particular remedial action taken may be dependent on the severity of the detected shock event. The data storage system controller may also receive information regarding shock events from shock sensors provided separately from the data storage system controller, allowing the data storage system controller to take remedial action that is tailored to the locale of a shock event.

Abstract: The present invention relates to a method of manufacturing a DFL type thin film magnetic head. The method includes laminating each of the layers from the lower magnetization control layer to the upper exchange coupling layer above the substrate; laminating an auxiliary magnetization control layer including at least a CoZrTa layer above the upper exchange coupling layer; forming at least each of the layers from the lower exchange coupling layer to the auxiliary magnetization control layer in pillar shape, and disposing the bias magnetic field application layer at an opposite position with respect to the ABS of each of the pillar shaped layers; trimming the auxiliary magnetization control layer by removing a part of the auxiliary magnetization control layer that is formed in the pillar shape, and disposing the upper shield layer such that the trimmed auxiliary magnetization control layer is at least covered.

Abstract: A tape drive for use with a tape cartridge having a cartridge leader includes a drive body, and a drive leader that is engageable with the cartridge leader and moveable with respect to the drive body. The tape drive further includes an engaging member that is engageable with a first portion of the drive leader and moveable with respect to the drive body for connecting the drive leader with the cartridge leader of the tape cartridge. The tape drive also includes a retention feature that is engageable with a second portion of the drive leader for inhibiting disengagement of the drive leader from the engaging member, wherein the second portion of the drive leader is different than the first portion.

Abstract: A TMR sensor structure having free and reference layers, where the magnetic orientations of the free and reference layers are non-orthogonal. In one embodiment, a ferromagnetic free layer film has a bias-point magnetization nominally oriented in plane of the film thereof, in a first direction at an angle ?fb with respect to a longitudinal axis being defined as the intersection of the plane of deposition of the free layer and the plane of the ABS. A ferromagnetic reference layer film has a bias-point magnetization nominally oriented in a plane of the film thereof, in a second direction at angle ?rb with respect to said longitudinal axis that is not orthogonal to the said first direction.