Abstract: A multi-stage gasket having a multi-stage structure constituted by multiple kinds of gasket materials and being used by holding between a cover plate and a base plate, the multi-stage gasket having contactness of a gasket as the lowermost layer to the cover plate or the base plate in contact with the gasket that is higher than contactness of a gasket as the uppermost layer to the cover plate or the base plate in contact with the gasket. A gasket can be provided that provides good reworkability of a cover plate and a base plate of a hard disk device, provides sufficient adhesiveness of the gasket to a cover plate and a base plate even when used in a high humidity and temperature environment, and is prevented from being toppled sideways or peeled off even when applied with a force in an oblique direction.

Abstract: A method for re-injecting low density gas into a disk drive including a hermetically sealed disk enclosure. The method includes providing a disk drive including a hermetically sealed disk enclosure. In addition, the method includes re-injecting low density gas from a hole penetrating the hermetically sealed disk enclosure from an exterior of the disk drive to an interior of the disk drive. Moreover, the method includes covering the hole with a sealing label including a metal layer and an adhesive layer.

Abstract: Base decks for data storage systems include a spindle motor region, a medium support region, an enclosure sidewall, and a recessed channel. The spindle motor region is configured to support a spindle motor assembly. The medium support region is beneath a storage medium when the storage medium is positioned within the base deck, and the enclosure sidewall surrounds an outer periphery of the storage medium when it is positioned within the base deck. The recessed channel is within the media support region and extends from the spindle motor region to the enclosure sidewall. The recessed channel illustratively has curved sidewalls that converge.

Abstract: According to an embodiment, a disk device includes a housing configured to contain therein a disk-shaped recording medium, a drive section configured to rotate the recording medium, a head configured to subject the recording medium to information processing, and an aspiration filter arranged inside the housing, including a casing including an inner side portion facing the recording medium, and an outer side portion positioned on the opposite side of the recording medium with respect to the inner side portion, and containing therein adsorbent configured to adsorb a substance in air, an inlet port in the casing and configured to take outside air into the casing, and an exhaust port in the outer side portion and configured to discharge the outside air that has passed through the adsorbent to the inside of the disk device.

Abstract: A disk drive test slot thermal control system includes a test slot. The test slot includes a housing and an air mover (e.g., a blower or a fan). The housing includes an outer surface, and an internal cavity. The internal cavity includes a test compartment for receiving a disk drive for testing. The housing also includes an inlet aperture extending from the outer surface of the housing to the internal cavity. The air mover can be disposed outside of the internal cavity to provide an air flow towards the test compartment through the inlet aperture.

Abstract: A hard disk drive effectively removes internal humidity therefrom and thus improves the reliance and performance of the hard disk drive in high and increased humidity environments.

Abstract: A hard disk drive includes a base, a screw housing includes at least one screw hole wall formed with a screw hole, and provided at lateral sides of the base, and a shock-absorbing space formed between the base and at least a part among outer walls of the screw housing. The base is a structure to absorb at least a part of a shock due to external impact and/or vibration applied to an external structure to which the hard disk drive is mounted, such that a defect due to external shock and/or vibration can be decreased.

Abstract: An electronic device includes a tray, a disk drive secured in the tray, a first back plane secured on the tray, and a flexible connecting member. The disk drive connects with the first back plane by the connecting member so that the disk drive is spaced from the first back plane when the disk drive is vibrated.

Abstract: A method and system of controlling contamination within an HDD with a surface modified MCM 41/48 material. The method includes encasing the hard disk drive and a mesoporous material in an enclosure of the hard disk drive, wherein the mesoporous material sorbs contaminants within said enclosure.

Abstract: According to an embodiment, a storage device includes a housing configured to contain a magnetic disk storage medium, a drive section configured to rotate the storage medium to store information into the storage medium, an air passage which is defined along an outer peripheral edge of the storage medium between the outer peripheral edge and a wall portion of the housing which faces the outer peripheral edge, receives air produced as the storage medium rotates, and discharges the received air toward an outer peripheral surface of the storage medium, a filter for dust collection in the air passage, and a spoiler located close to at least an air exhaust side of the air passage and extending from the outer peripheral edge side of the storage medium to a region above a recording surface of the storage medium.

Abstract: When a disk device corresponding to a logical volume is started, a disk system determines and starts a disk device and a fan to be started, while comprehensively considering heat quantity generated by the disk device to be started, the cooling capacity of the fan, and the electric power consumption of the fan or the electric power consumption of the disk device.

Abstract: A recording apparatus includes: a recording head which conducts recording onto a printing medium; a supporter which supports the recording head at a recording position; and a vibration damper interposed between the recording head and the supporter. The recording head includes a recording surface facing a printing medium and a gradient inclined relative to the recording surface. The gradient is provided at an end of the recording surface. The vibration damper abuts: at least one of the recording surface and a surface parallel to the recording surface of the recording head; and the gradient.

Abstract: In a disk drive, the fly-height of a recording head with respect to a recording medium is adjusted such that a target magnetic separation between the recording head and the recording medium is achieved. The target magnetic separation is determined based on the operating temperature of the disk drive. In addition, different target magnetic separations may be determined for different radial locations of the recording medium.

Abstract: A method and apparatus for a filter for filtering airborne particles present within an enclosure containing equipment sensitive is provided. The filter may be used within the enclosure of a hard disk drive. The filter may comprise a magnetic plate enclosed by a protective layer, which in turn may be enclosed by a non-woven scrim. The magnetic plate has a magnetic property that generates a magnetic field attractive to paramagnetic particles within the enclosure. The protective layer forms a barrier that prevents particles of the magnetic plate from entering into the enclosure. The non-woven scrim may, but need not, have an adhesive property which traps non-paramagnetic particles coming in contact with the non-woven scrim. If the non-woven scrim lacks an adhesive property, then at least a portion of the non-woven scrim may be coated with an adhesive layer which traps non-paramagnetic particles coming in contact with the non-woven scrim.

Abstract: A fall detection device that is allowed to reduce the processing load put when making a determination using software, to reliably determine the start of a fall, and to make a fall prediction as necessary, and a magnetic disk drive and a portable electronic apparatus that each include the fall detection device are configured. Accelerations are obtained in three orthogonal axis directions (ax, ay, az), and an evaluation value is obtained with respect to each of the accelerations (ax, ay, az) on the basis of an evaluation function, by which an evaluation value is increased as the difference increases between accelerations (ax0, ay0, az0) at a steady time and accelerations (ax, ay, az) at a fall determination time, and whether a fall has started is determined on the basis of whether this evaluation value exceeds a predetermined value.

Abstract: A method of controlling a temperature of a subject test slot in a cluster of test slots includes evaluating a request for a temperature change for the subject test slot to determine if sufficient power is available to achieve the requested temperature change, and inhibiting the requested temperature change unless or until sufficient power is determined to be available to achieve the requested temperature change.

Abstract: Reducing a spreading of contaminants within a hard disk drive is described. An adhesive is applied to a first side of a desiccant. Then, the desiccant is utilized to cover a component of a hard disk drive, the component comprising a countersink area surrounding a fastener, wherein said fastener is countersunk within the component. The adhesive is then coupled with the component to encapsulate contaminants lying within the countersink area, thereby reducing a spreading of the contaminants within the hard disk drive.

Abstract: In order to effectively reduce disk flutter in a disk drive by using simple structures and efficient manufacturing techniques, a disk drive, in one embodiment, includes a base, a spindle motor coupled to the bottom of the base, a disk coupled to and rotated by a rotational shaft of the spindle motor, an airflow reduction plate coupled inside the base and positioned opposite to and away from a main plane of the disk, and a sidewall section inside the base which is positioned opposite to an outer edge of the disk and has a form along the outer edge of the disk. A first gap between at least one half of a part positioned opposite to the sidewall section in an outer edge of the airflow reduction plate and the sidewall section is smaller than a second gap between the sidewall section and the outer edge of the disk.

Abstract: A disk drive. The disk drive includes a motor, a base to which the motor is affixed, an actuator supporting a head-slider, and an air-flow control component affixed inside the base. The motor is configured to spin a disk. The actuator is configured to access the disk and to rotate about a pivot shaft to move the head-slider. The air-flow control component includes a plate which faces a recording surface of the disk, and a support portion supporting the plate. The thickness of the plate gradually decreases towards an outflow side of the air-flow control component. The bodies of the plate and the support portion are made of resin; and, a surface of the plate is configured to be held at an electrical potential selected from the group consisting of ground potential and a negative potential.

Abstract: A Hard Disk Drive (HDD) temperature control system includes an HDD including a temperature sensor. An Operating System (OS) driver is coupled to the temperature sensor and includes a temperature data retrieval engine that is operable to retrieve HDD temperature data from the temperature sensor and transmit the HDD temperature data. A shared data storage is coupled to the OS driver and operable to store the HDD temperature data transmitted from the temperature data retrieval engine. A fan speed controller is coupled to the shared data storage and operable to use the HDD temperature data stored in the shared data storage to adjust the speed of a fan.

Abstract: A motor and a disk driver having the motor are disclosed. The motor in accordance with an embodiment of the present invention includes: a shaft; a boss, which is coupled to one end of the shaft; a bearing, which supports the other end of the shaft such that the shaft can rotate; a holder, which supports the bearing; a stator, which is coupled to the holder; a rotor, which is coupled to the boss and covers the stator; and a ventilation hole, which is formed on a lower surface of the boss such that air flows toward the stator. The motor in accordance with an embodiment of the present invention can make the flow of air around a disk stable by forming an air circulation structure, allowing air to flow from the inside to the outside of the motor.

Abstract: A hard disk drive includes a base on which at least one disk recording and storing data is provided, a filter provided in an area around a corner of the base with a predetermined air flow space interposed between the corner and the filter to collect contaminant particles in air flowing due to rotation of the disk, and an air exhaust prevention unit provided in an area of the air flow space to prevent the air input to the air flow space through an inlet portion between the filter and a first corner side wall connected to the corner from being exhausted through an outlet portion between the filter and a second corner side wall connected to the corner without passing through the filter. The hard disk drive is manufactured in a simple method without changing the media of the filter and a contaminant particle collection effect is improved.

Abstract: An optical disk drive, which includes a main frame, an upper case coupled to an upper portion of the main frame, a tray slidably installed on the main frame, having a door, and adapted to carry a disk, and a front panel coupled to a front end portion of the main frame and having an aperture through which the tray passes, including an air discharging passage between the main frame and the front panel to discharge air and dust introduced into the optical disk drive through a gap between the door and the front panel to an outside of the optical disk drive.

Abstract: According to one embodiment, a storage device includes a storage medium, a head slider, and a heating element. The storage medium has a lubricating film on the surface. The head slider faces a surface of the storage medium on the medium facing surface. The heating element is embedded in the head slider, and applies heat to the lubricating film from the medium facing surface.

Abstract: A magnetic disk apparatus includes a housing, a rotatable magnetic disk arranged in the housing, a nitrogen separation film module for separating nitrogen from air outside the housing, a nitrogen introduction path for guiding nitrogen from the nitrogen separation film module into the housing, and a negative pressure generator for generating negative pressure by utilizing static pressure drop at the obverse surface of the magnetic disk in rotation. The negative pressure generator is attached to an end of the nitrogen introduction path in the housing.

Abstract: Disclosed is a method for pre-heating a hard disk drive of a computer device, wherein a temperature sensor and a heater are arranged at preset locations outside the computer device. The temperature sensor detects an external temperature of the hard disk drive, which is compared with an activation temperature threshold stored in a data memory unit of the computer device. The activation temperature threshold is calibrated by a preset compensation value stored in the data memory unit. When the external temperature of the hard disk drive subtracting the preset compensation value is less than the activation temperature threshold of the hard disk drive, the activation of the hard disk drive is prohibited and the heater carries out heating on the hard disk drive until the activation temperature threshold of the hard disk drive is reached; thereafter, the hard disk drive is activated again.

Abstract: Bases for data storage systems are disclosed. Some embodiments of the bases are used in hard disc drives. Some embodiments include particle diverters. Certain embodiments of the particle diverters include a particle diverter opening adjacent to an actuator region of a hard disc drive.

Abstract: The present disclosure provides a vibration damper for an actuator assembly. One exemplary embodiment relates to an actuator assembly including a magnetic assembly configured to produce a magnetic field and an actuator movable relative to the magnetic assembly in response to the magnetic field, wherein the actuator includes a vibration damper which interacts with the magnetic field.

Abstract: A storage device includes: a head that reads and writes data stored in a storage medium; an arm that holds the head; a voice coil motor formed of a coil and a magnet, the voice coil motor that lets a current flow through the coil to move the arm; a disk enclosure that accommodates the storage medium, the head, the arm, and the voice coil motor; a temperature sensor that detects a temperature in the disk enclosure; and a controller that determines an amount of current flowing through the coil for moving the head to a target position on the storage medium and estimates a temperature of the coil from the amount of current flowing through the coil, the temperature in the disk enclosure detected by the temperature sensor, and a predetermined value.

Abstract: A mounting system for a media playback device is provided having an outer module for rigidly mounting the media playback device to a surface, and a corresponding cartridge which is capable of being inserted and removed from the outer module. While inserted in the outer module, a first mounting subsystem functions to fixedly mount the cartridge within the outer module such that shock, vibration, and other physical environmental factors are not amplified in the cartridge. A second mounting subsystem is provided to protect the cartridge while removed from the outer module, and generally comprises a resilient material around a portion of the cartridge.

Abstract: To reduce the whirling air vortices which are normally formed at the disc tip, the outer edge of the disc surface may be gradually thinned down to a sharp tip. An alternative approach, the disc tip is gradually reduced in width and rounded at its outer edge. A flow obstruction may be incorporated in the shroud adjacent the edge of the disc tip. This obstruction may comprise a small substantially rectangular insert extending from the inner edge of the housing. Or, the inner surface of the portion of the housing adjacent the ends of the disc may incorporate grooves therein. These grooves, which are roughly herringbone in shape, and would have their center near either the edge of disc in a single disc environment or mid-way between the disc in a two disc environment.

Abstract: A floating amount of the magnetic head is controlled. The disk device has a temperature or humidity sensor and a controller. The controller monitors the detected temperature or humidity and retracts the magnetic head to an area where the circumferential speed is fastest, such as at the outermost side of the flying guarantee area of the magnetic disk, if the temperature or humidity is a predetermined value or more. The lubricant transferred from the magnetic disk to the magnetic head can be removed, and the increase of the flying height of the magnetic head can be suppressed.

Abstract: A disk drive. The disk drive includes a head-slider, an actuator, a ramp and a shroud. The head-slider is configured to fly above the disk. The actuator is configured to support the head-slider and to swing about a pivot shaft to move the head-slider in a radial direction of the disk. The actuator may also be configured to rest on the ramp in a stand-by position. The shroud includes an inner peripheral side surface and an outer peripheral side surface. The shroud is configured to control an air-stream which flows in a direction from the pivot shaft toward the head-slider. The inner peripheral side surface and the outer peripheral side surface are configured to blast the head-slider with the air-stream upon spinning the disk when the head-slider is positioned away from the disk in the stand-by position.

Abstract: A magnetic storage device includes a magnetic disk having a protective film and a lubricant layer formed on the protective film, a head stack assembly including a head operable to read information from and write information to the magnetic disk, and a suspension configured to support the head, a vibration detection sensor operable to output a detection signal to detect vibration of the head stack assembly, and an extraction unit operable to extract a specific frequency range from the detection signal outputted by the vibration detection sensor, the specific frequency range including a natural frequency of the head stack assembly but not including a natural frequency of an air film on the head.

Abstract: A pickup device (5) is provided with a pickup body (51) as a case; a heat source (61) thermally connected to the pickup body; and an optical component (13), which is fixed to the pickup body by a plurality of fixing sections including at least two fixing sections (131, 132) which are at different distances from the heat source and belong to the pickup body. The pickup body is provided with at least one of slits (100, 101) having prescribed widths, in a direction of reducing a binding force (F) which is a factor of preventing at last one fixing section (132) of the two fixing sections from being displaced due to thermal expansion in accordance with the distance from the heat source.

Abstract: A disk drive device is configured such that a wall of a base plate is provided with a through hole that guides a lead from a drive unit outside. The through hole is covered by a sealing sheet having an insertion hole. The lead is guided from inside the housing via the insertion hole of the sealing sheet. The sealing sheet carries a curable resin. The curable resin, temporarily softened during a curing process, flows into a space between the base plate and the through hole and a space between the insertion hole and the lead. The curable resin is cured in this state, ensuring the airtightness of the housing.

Abstract: An information recording apparatus includes a recording medium and a flying head for writing/reading information on the recording medium, arranged in a housing, in which a mass sensor is arranged in a path of an air flow inside the housing due to spinning of the recording medium. The output of the mass sensor is monitored by a monitoring circuit.

Abstract: An assembly for isolating a component from vibrations present in a chassis. The assembly includes a support platform configured to carry the component. A first magnet is fixed relative to the support platform and a second magnet is fixed relative to the chassis, the first and second magnets being positioned and orientated such that a magnetic attractive force occurs there between. A spacing means is arranged to prevent the magnets coming into contact with each other whilst allowing relative movement between the magnets in a direction lateral to the magnetic attractive force. The spacing means may include a plurality of tension strings which pull the magnets apart or compliant material which pushes the magnets apart. The assembly is especially suited for use in a high-fidelity turntable to isolate a tonearm, or a tonearm mounting board, from vibrations present in the chassis of the turntable.

Abstract: A hard disk drive (HDD) includes a spindle motor, an actuator, a static eccentricity sensor, a monitor and a central controller. The spindle motor includes a rotary body and a static body adapted to support the rotary body, where the spindle motor is adapted to rotate a disk. The actuator is adapted to move a read/write head over the disk. The static eccentricity sensor is adapted to measure static eccentricity associated with the rotary body. The monitor is adapted to monitor the measured static eccentricity and generate a free-fall signal when the monitor determines that the HDD is in a free-fall state. The central controller is adapted to initiate an unloading/parking operation for the read/write head in response to the free-fall signal.

Abstract: A method for preventing dust from entering a tape drive system is disclosed. Initially, a cooling fan is allowed to rotate in one direction to provide airflow to the tape drive system. In response to a detection of a loading or unloading of a tape cartridge or a head brush operation, the cooling fan is allowed to rotate in a different direction to provide airflow in an opposite direction in order to blow any dust and debris, which may be introduced from a tape cartridge or may already be resident on a tape head, out the front of the tape drive system.

Abstract: According to one embodiment, a disk apparatus has a disk, a head, a carriage assembly, and a circulation filter provided at the corner of the base, located downstream of the head with respect to a rotating direction of the disk. A sidewall of the base has a confronting surface which continuously extends along the outer peripheral edge of the disk, is formed in an arc, and confronts with the outer peripheral edge of the disk with a gap. The base has a guide flow path 58 which is formed in the sidewall in a corner and guides an airflow to the circulation filter. The guide flow path has an inlet port and an outlet port which open to the confronting surface of the sidewall in the corner at positions away from the positions at which they confront with the outer peripheral edge of the disk.

Abstract: In a disk device, an arm for supporting a head includes upper and lower plates that are located parallel to a surface of a magnetic disk. The lower plate has a linear expansion coefficient greater than that of the upper plate. The upper and lower plates are provided with an electrically-heated wire. When a present altitude of the disk device exceeds a threshold altitude, an electric current is supplied to the heated wire so that the upper and lower plates are expanded. Due to a difference in the linear expansion coefficients between the upper and lower plates, the arm is warped in a direction away from the magnetic disk so that a distance between the head and the surface of the magnetic disk is increased.

Abstract: Embodiments of the present invention help to accomplish accurate and reliable clearance control. In one embodiment of the present invention, a disk drive device adjusts the clearance between a head element portion and a disk with a heater on a slider. The clearance control according to the present embodiment incorporates the variation in heater power efficiency in the clearance variation depending on the radial position. The clearance variation in a unit of heater power varies depending on the radial position. Taking account of the variation in the heater power efficiency in the thermal fly-height control (TFC) depending on the radial position in addition to the clearance variation between the head element portion and the disk caused by variation in fly-height or attitude, accomplishes more accurate TFC.

Abstract: An enclosure system includes an enclosure and at least one rotating storage medium positioned within the enclosure. The enclosure has a corresponding airflow contaminated with particles. An impact absorbing material is deposited on at least one component in the enclosure and positioned within and traversely to the airflow. The impact absorbing material is configured to reduce rebound velocity of the particles off of the at least one component in the enclosure.

Abstract: An electronic apparatus 1 in which is mounted an electronic unit having a plurality of heat-generating sections including at least a first heat-generating section and a second heat-generating section includes: a hold frame 9 for holding the electronic unit, a first heat-conducting member 11 for transmitting heat generated by the first heat-generating section, a second heat-conducting member 11 for transmitting heat generated by the second heat-generating section, and a cooling unit 8 for releasing the heat transmitted through the first and second heat-generating sections; in which apparatus, the first heat-conducting member 11 is heat-connected to the cooling unit 8, and the second heat-conducting member 11 is heat-connected to the cooling unit 8 via the hold frame 9.

Abstract: An information storage apparatus includes: at least one information storage medium each of which is in a disk-like shape, rotates being fixed to a common rotating shaft and in which information is recorded; a head which accesses the information storage medium by approaching or touching the information storage medium; an arm which extends along a surface of the storage information medium, holds the head at an end of the arm, and swings around a pivot shaft disposed at a root of the arm; and a spoiler which rectifies airflow on the information storage medium and includes a metal airflow control plate and a resin bracket which holds the airflow control plate at a predetermined position along the surface of the information storage medium.