Dynamic magnetic information storage or retrieval inventions 03/06

20060066970 - Apparatus and method for writing and reproducing data: High-rate writing of data recorded on a CD into a hard disk drive (HDD) is performed while reproducing data read out of the CD at the standard bit rate prescribed for the CD. PCM data corresponding to a playback time of 10 seconds, for example, is read out of a...

20060066971 - System and method for ameliorating the effects of adjacent track erasure in magnetic data storage device: To ameliorate the effects of ATE in a HDD, tracks that are potential victim tracks of an aggressor track by virtue of the victim tracks being exposed to a magnetic field associated with a write of the aggressor track are preemptively rewritten after an empirically-determined number of writes to the...

20060066972 - Read channel for simultaneous multiple bit data transfers: A system is provided that has the ability to perform simultaneous parallel read and write operations with a plurality of transducing heads that transduce data with a storage medium. The system includes a preamplifier circuit and a read channel. The read channel includes a serializer circuit coupled to the preamplifier...

20060066973 - Write head demagnetizer: A demagnetizer for an inductive load having a driver circuit including at least one transistor and a ramp-down voltage source switchably connected to the driver circuit, so that when the ramp-down voltage source is connected to the transistor, it drives the voltage of the transistor below its threshold voltage....

20060066974 - Disk drive device with temperature and humidity control: Embodiments of the invention provide a disk drive device excellent in reliability that can reduce influence of a temperature change in an environment of use. In one embodiment, a disk drive device includes a disk drive mechanism that records information in a disk or reproduces information stored in the disk...

20060066975 - Information recording medium, recording/reproducing apparatus, and stamper: On an information recording medium, a data track pattern and a servo pattern composed of a concave/convex pattern including a plurality of convex parts are formed on at least one surface side of a substrate and respective concave parts in the concave/convex pattern are filled with non-magnetic material. In the...

20060066976 - Apparatus for transporting a magnetic tape: An apparatus for transporting a magnetic tape includes a writing head, a unit for generating pulse signal, a reading head and a unit for calculating transport speed. The writing head has at least two parallel and linear magnetic gaps spaced a predetermined distance in a tape transport direction. The unit...

20060066977 - Servo writer and method for writing servo patterns using the same: A servo writer includes a tape running drive unit for running a magnetic tape in a longitudinal direction; a pulse signal generating circuit for generating pulse signals; a write head having a plurality of linear magnetic gaps thereon in a running direction of the magnetic tape at a predetermined interval,...

20060066982 - Load/unload system and method for maximizing disk writeable area: A system and method for loading a head onto a specified load zone of a disk includes reading positional index information for determining a position of a pre-specified load zone of a disk. When to load a head is determined based on the positional index information so that the head...

20060066978 - Magnetic head assembly and magnetic disc device: The present invention implements a magnetic disk drive usable under a wide range of temperature environment conditions, and a magnetic head assembly. The flying height of a magnetic head slider (1) can be controlled against a change of temperature so that the flying height of the magnetic head slider (1)...

20060066984 - Magnetic recording and reproducing apparatus: A magnetic recording and reproducing apparatus includes a magnetic head having a main magnetic pole, a magnetic recording medium of a discrete type having a predetermined convex-concave structure at data tracks and servo tracks, and a drive device body that can operate to rotationally drive the magnetic recording medium in...

20060066983 - System and method for adjusting fly heights in a hard disk drive having multiple heads: A method for adjusting fly heights for a plurality of heads of a hard disk drive is disclosed. The method includes measuring respective magnetic and mechanical performance for the plurality of heads and varying the density of an environment within the hard disk drive. This variation of the environment is...

20060066979 - System and method for writing secure data to disk: Secure data is written to a disk during manufacture in such a way that it can be read but not copied. Methods include writing triangular transitions or very slow transitions from positive magnetic to negative magnetic and then erasing the negative parts to yield a code that consists of positive...

20060066980 - Velocity controlled disk drive head retraction after power loss: A control apparatus controls retraction of a device carried on a moveable member actuated by an electric motor after a sudden power loss. The control apparatus includes a measuring circuit for measuring a back electromotive force (back EMF) from the electric motor during a measuring phase. The control apparatus also...

20060066981 - Velocity controlled disk drive head retraction with reduced audible noise: A control circuit controls current through a voice coil motor (VCM) during retraction of a transducing head from the surface of a recordable medium. The transducing head is carried on movable member actuated by the VCM. The control circuit includes a measuring circuit for measuring a back electromotive force (back...

20060066985 - Disk drive with capacitance sensing of disk vibration and feedforward control for removal of read/write head track misregistration: A data recording disk drive has a plurality of capacitive sensors, each sensor facing a surface of an associated disk, a capacitance sensing circuit for converting the sensed capacitance to a voltage representative of the distance between the sensor and the disk surface, and a feedforward controller that receives the...

20060066986 - Seek servomechanism with extended sinusoidal current profile: A hard disk drive moves a transducer (or recording head) across a disk surface so that the transducer has an essentially extended sinusoidal acceleration trajectory. The transducer may be integrated into a slider that is incorporated into a head gimbal assembly (HGA). The HGA may be mounted to an actuator...

20060066987 - Magnetic recording/reproducing apparatus: A magnetic recording/reproducing apparatus is disclosed that is arranged to receive a tape cassette accommodating a tape recording medium that is selectively loaded thereto, the loaded tape cassette being selected from plural different types of tape cassettes of different sizes. The apparatus includes a rotating drum unit having a rotating...

20060066988 - Magnetic recording/reproducing apparatus: A magnetic recording/reproducing apparatus is disclosed that is arranged to receive a tape cassette accommodating a tape recording medium that is selectively loaded thereto. The apparatus includes a rotating drum unit having a rotating head, and a loading mechanism that is configured to pull the tape recording medium of the...

20060066989 - Magnetic recording/reproducing apparatus: A magnetic recording/reproducing apparatus is disclosed that is arranged to receive a tape cassette accommodating a tape recording medium that is selectively loaded thereto. The loaded tape cassette is selected from plural types of tape cassettes accommodating tape recording media with differing widths. The magnetic recording/reproducing apparatus includes a rotating...

20060066990 - Hard disk drive having a damper for reducing vibrations: A hard disk drive having a vibration reducing damper is disclosed. The hard disk drive is provided with a damper which is interposed between a through hole provided at a cover plate and a screw joined to the upper end of the shaft of a spindle motor, and includes at...

20060066991 - Disk drive with support structure for disk-vibration capacitive sensors: A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surface of the disk...

20060066992 - Apparatus and method for guiding bypass reentry flow through contraction and filter in a hard disk drive: An apparatus and method for guiding bypass reentry flow through contraction and filter in a hard disk drive. The method provides a bypass channel for directing airflow away from a first portion of a disk of the hard disk drive and toward a second portion of the disk of the...

20060066993 - Disk drive device: A plurality of magnetic disks are supported and rotated by a motor that is arranged in a case. A stabilizing plate is located between the disks so as to oppose surfaces of the disks across gaps. The stabilizing plate includes integrally with an arcuate first stabilizing portion and a second...

20060066994 - Method of mitigating eccentricity in a disk drive with dtr media: A disk drive with DTR media and method of assembly is described. The method may include aligning a discrete track recording (DTR) track pattern center on a DTR disk with a rotational center of a spindle hub and mounting the DTR disk on the spindle hub to minimize eccentricity. After...

20060066995 - Methods of making a side-by-side read/write head with a self-aligned trailing shield structure: A side-by-side read/write head includes a self-aligned trailing shield, where a rear edge of the trailing shield is defined by the same lithography/etching process used to define a rear edge of a read sensor of the head. In one specific method, a plurality of read sensor layers and a pole...

20060066996 - Cleaning medium: A cleaning medium including: a non-magnetic back layer; a non-magnetic support; and a cleaning layer containing a ferromagnetic powder and a binder, in this order, wherein a surface of the cleaning layer has a C/Fe peak ratio of from 10 to 20, a Cl/Fe peak ratio of not more than...

20060066998 - Cleaning medium: A cleaning medium comprising: a backcoat layer; a nonmagnetic support; and a cleaning layer containing ferromagnetic powder and a binder, in this order, wherein the cleaning layer has projections having a height of 10 nm or higher on a surface of the cleaning layer at a density of from 0.10...

20060066997 - Cleaning tape: A cleaning tape comprising a support and a coating layer containing powder and a binder, wherein a surface of the coating layer has a central line average roughness of from 5 to 25 nm and has protrusions having height of 25 nm or more in number of from 60 to...

20060066999 - Cleaning tape for magneto-resistive head: A cleaning tape for a magneto-resistive head including a support and a cleaning layer containing powder and a binder, the cleaning layer being adapted to be brought into contact with the magneto-resistive head, the cleaning layer having a centerline average surface roughness Ra of 10 to 60 nm, and the...

20060067000 - Magnetic tape cartridge: A magnetic tape cartridge wherein a reel with magnetic tape wound thereon is rotatably housed within a cartridge case, the thickness of the magnetic tape being 7 μm or less and a reel hub constituting the reel being formed from a highly rigid material having a flexural rigidity of 5000...

20060067001 - Thermally assisted recording of magnetic media using a rosonant cavity and energy: A magnetic head including a media heating device including an optical cavity resonator that produces a high intensity near-field optical beam adjacent to the write pole. Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate the cavity, and optical energy is coupled out of...

20060067002 - Disk drive with negative-pitch slider for contact recording: A magnetic recording disk drive has a negative-pitch slider in near-contact or continuous-contact with the disk during reading and writing of data. When the disk is rotating at its operating speed, the slider has its upstream or leading portion located closer to the disk surface than its downstream or trailing...

20060067003 - Three terminal magnetic sensor (ttm) having a metal layer formed in-plane and in contact with the base region for reduced base resistance: A three terminal magnetic sensor (TTM) has a base region, a collector region which is adjacent the base region, an emitter region, and a barrier region which separates the emitter region from the base region. A sensing plane is defined along sides of the base region, the collector region, and...

20060067004 - Critically exposed lapping of magnetic sensors for target signal output: Magnetic sensors are fabricated with an initial length that is slightly longer than their finished length. The sensors are then critically lapped and exposed for target signal output. The final target length of the sensors is obtained by first exposing the sensors to a photolithographic process and then directly lapping...

20060067005 - Laminated draped shield for cpp read sensors: A magnetic head is disclosed having a CPP read head which produces reduced cross-track interference. The CPP read head includes a read sensor, a first shield and a second shield. The second shield has side drapes having an edge portion adjacent to the read sensor. The side drapes include a...

20060067006 - Magnetic head and magnetic recording and reproducing apparatus: A magnetic head includes a read head including a read element and two layers of shields sandwiching the read element therebetween, and a write head including a main pole, a return yoke, and an exciting coil, in which at least one of each of the shields and the return yoke...

20060067007 - Magnetic storage device: A magnetic storage device includes a magnetoresistive element. A pair of side faces of the magnetoresistive element are at least partially opposed to end faces of a pair of open ends of a magnetic yoke. Moreover, the pair of side faces of the magnetoresistive element and the end faces of...

20060067008 - Magnetic storage device: A magnetic storage device includes a magnetic yoke. A maximum thickness of each open end of the magnetic yoke in a diameter direction of the magnetic yoke is set to be larger than a maximum thickness of a second magnetic layer of a magnetoresistive element in the diameter direction of...

20060067011 - Magneto-resistance effect type magnetic head and magnetic tape apparatus: A magneto-resistance effect type magnetic head is disclosed which is high in sensitivity and corrosion resistance. In the head, a spin valve film acting as an magnetic sensing device for detecting a magnetic signal on a magnetic recording medium. The spin valve film is structured such that an antiferromagnetic layer,...

20060067010 - Manufacturing method of thin-film magnetic head and thin-film magnetic head: A manufacturing method of a thin-film magnetic head includes a step of depositing an MR multi-layered film on a lower electrode layer, a step of patterning the deposited MR multi-layered film to define a track width, a step of forming a layer containing at least first insulation layer at both...

20060067009 - Read head having shaped read sensor-biasing layer junctions using partial milling and method of fabrication: A method is disclosed for fabricating a read head for a magnetic disk drive having a read head sensor and a hard bias layer, where the read head has a shaped junction between the read head sensor and the hard bias layer. The method includes providing a layered wafer stack...

20060067013 - Magnetoresistive head and read/write separation-type magnetic head: Embodiments of the invention provide a reading head structure that ensures a stable magnetic moment of a pinned layer, even in a very small sensor, against a great external magnetic field, and minimizes the pinned-layer damage occurring during air-bearing surface machining, and provide a reading head not suffering the deterioration...

20060067012 - Method and apparatus having improved magnetic read head sensors: A method and apparatus for an improved magnetic read sensor having synthetic or AP pinned layers with high resistance and high magnetoelastic anisotropy is disclosed. A pinned layer includes a cobalt-iron ternary alloy, where a third constituent of the cobalt-iron ternary alloy layer is selected for increasing the resistance and...

20060067015 - Magnetic sensor having a seedlayer for providing improved hard magnet properties: A magnetoresistive sensor having a novel seed layer that allows a bias layer formed there over to have exceptional hard magnetic properties when deposited over a crystalline structure such as an AFM layer of in a partial mill sensor design. The seed layer structure may be a CrMo/Si/CrMo sandwich or...

20060067017 - Magnetoresistive effect element, magnetic head and magnetic reproducing apparatus: A spin valve type magnetoresistive effect element for vertical electric conduction includes a magnetoresistive effect film in which a resistance adjustment layer made of a material containing conductive carriers not more than 1022/cm3 is inserted. Thus the resistance value of a portion in change of spin-relied conduction is raised to...

20060067014 - Magnetoresistive sensor having a high coercivity hard magnetic bias layer deposited over a metallic layer: A magnetoresistive sensor having hard bias layers constructed of CoPtCrB, which high coercivity when deposited over crystalline materials such as an AFM layer or other sensor material. The bias layer material exhibits high coercivity and high moment even when deposited over a crystalline structure such as that of an underlying...

20060067016 - Read sensor having an in-stack biasing structure and an ap coupled free layer structure for increased magnetic stability: Current-perpendicular-to-the-plane (CPP), current-in-to-the-plane (CIP), and tunnel valve type sensors are provided having an antiparallel (AP) coupled free layer structure, an in-stack biasing structure which stabilizes the AP coupled free layer structure and a nonmagnetic spacer layer formed between the in-stack biasing layer and the AP coupled free layer structure. The...

20060056088 - Defect registration method of magnetic disk, and magnetic disk drive: Embodiments of the present invention provide a defect registration method for performing defect registration of sectors on a magnetic disk. In one embodiment, a rectangular detection window is applied to each defect sector. A threshold value of the detection window is set at 2. In addition, an additional sector group...

20060056089 - Magnetic recording/reproducing apparatus and magnetic recording/reproducing method: Data is read out from a disk in which the data is recorded in the perpendicular magnetic recording system by a head, amplified by a head preamplifier, and signal-processed by a read channel LSI. A read-out processing unit of a HDD controller sends out signals processed by the read channel...

20060056090 - Method and system for determining spin pad length: Method and system for determining spin pad length in a data storage system. The data storage system has a data storage medium having at least one track for storing a plurality of data sections, a timing reference mark for the at least one track, and a recording head for writing...

20060056091 - Method of controlling a recording current, and magnetic disk device: Embodiments of the invention make it possible to conduct stable recording on a magnetic disk, even in case of changes in flying height due to thermal protrusion. In one embodiment, a compensatory recording current value A2 is used when a first section of user data is recorded in the required...

20060056096 - Magnetic head assembly, magnetic disk drive and posture control method for magnetic head slider: To realize stable reading/writing of data by making a positioning control of a magnetic head slider highly accurate. There are provided a magnetic head assembly including: a magnetic head slider for reading/writing of data with respect to a rotating magnetic disk; a suspension for supporting the magnetic head slider; and...

20060056094 - Method and apparatus for active fly height control with heating and electrical charge: A system and method for adjusting the flying height of a magnetic head above a magnetic storage medium, such as a disk, is disclosed. A charging surface of the slider, separate from the read/write head, allows a charging electrical interconnect to apply an electrical charge to the slider. By acting...

20060056093 - Method for microjog calibration by read-write zone: Embodiments of the present invention relate to systems, methods, and computer readable media for calibrating storage devices such as hard drives. Storage devices include storage media that are divided into differing data zones having differing data densities. A testing system initiates a series of microjog tests in the storage that...

20060056097 - Method of measuring head characteristics of a data storage device, and data storage device: Embodiments of the invention relate to measuring characteristics of a head with an actuator put in a state of being pushed against a crush stop. In one embodiment, with a head placed on an innermost ID side or with the current of a VCM sustained at a magnitude I_mid, a...

20060056098 - Method of writing patterns onto a recording disk, and data storage device: Embodiments of the invention relate to writing servo patterns having aligned phases onto a recording disk in a process to write the servo patterns onto the disk. In one embodiment, time aligned patterns are written onto a magnetic disk on the basis of time intervals between base patterns with timings...

20060056099 - Method of writing patterns using head with correct phases, and data storage device: Embodiments of the invention relate to writing servo patterns onto a recording disk with a high degree of accuracy and with correct phases in a servo-pattern-writing process. An In-Drive SSW (TSSW) process is processing to write product servo patterns onto a recording disk on the basis of time aligned patterns....

20060056095 - Servo writer, and write and inspection method of servo signal: A servo writer of the invention writes a servo signal in a magnetic tape, reads and inspects the signal, and has a servo writer main body and a plurality of unit panels changeably loaded to a panel change unit provided at the main body according to a product class of...

20060056092 - System for microjog calibration by read-write zone: Embodiments of the present invention relate to systems, methods, and computer readable media for calibrating storage devices such as hard drives. Storage devices include storage media that are divided into differing data zones having differing data densities. A testing system initiates a series of microjog tests in the storage that...

20060056101 - Controller for a disk, disk enclosure device, disk array apparatus, method for detecting a fault of disk enclosure device, and signal-bearing medium: A method and structure for a controller for a memory unit includes a switch that provides a first identification code for the memory unit and a comparator that compares the first identification code with at least a second identification code for the memory unit....

20060056100 - Correction table creation method for head position control, head position control method and disk device: A head position control system control the position of the head by correcting the components synchronizing rotation of the disk from the head control amount, in which an adjusted gain to minimize the components synchronizing rotation after correction is theoretically acquired. An adjusted gain based on the ratio of the...

20060056102 - Magnetic recording/reproducing apparatus: A sync signal time difference detection circuit detects a time difference of reproduced sync signals reproduced by a first head and a second head having different azimuth angles. Rotation of a capstan motor is controlled in accordance with sync signal time difference information output from the sync signal time difference...

20060056103 - Cartridge carrier: A cartridge carrier has a base with a recessed plate, a top surface, and a bottom surface. An ejection mechanism may be coupled to the base. A guide may be coupled to the top surface of the base to receive the cartridge and an interposer board may be coupled to...

20060056104 - Magnetic disk device with improved shielding: Embodiments of the invention provide a magnetic disk device which improves the shielding function for the magnetic heads yet maintaining a form factor relying upon an inexpensive constitution. In one embodiment, a magnetic disk device comprises a rotary disk-type magnetic disk; a magnetic head for recording or reproducing information; a...

20060056107 - Magnetic disk apparatus with reduced disk fluttering: Embodiments of the invention reduce disk fluttering while ensuring good assemblability in a magnetic disk apparatus. In one embodiment, a magnetic disk apparatus comprises a recording disk that is an information medium configured by one or plural disks; a motor causing the recording disk to rotate; a carriage supporting a...

20060056105 - Magnetic disk apparatus with shield for magnetic head: In a magnetic disk apparatus, a function of shielding a magnetic head is improved while maintaining the form factor with an inexpensive structure. In one embodiment, a magnetic disk apparatus has a magnetic disk, a magnetic head that records or plays back information, a magnetic head support mechanism supporting the...

20060056106 - Moisture absorbing mechanism and magnetic disk drive: Embodiments of the invention provide a moisture absorbing mechanism for condensing excessive moisture in an environment primarily thereon so that the condensed moisture is absorbed by an absorbent material. In one embodiment, the moisture absorbing mechanism includes a dew condensation trapping mechanism (moisture collector) provided on a surface of an...

20060056109 - Magnetic head with adaptive data island and mini-outrigger and methods of manufacture: In one aspect, an exemplary method of manufacturing a magnetic head assembly is provided. In one example, the method includes forming islands in a magnetic head structure to define a pair of mini-outriggers adjacent a data island, where the data island is separated from each mini-outrigger by a void, and...

20060056108 - Magnetic head with mini-outriggers and method of manufacture: An exemplary magnetic head assembly for use with magnetic recording media is provided. In one example, a head includes a data island associated with at least one data transducer, the data island having a width along a direction of media transport and a radius of curvature. The magnetic head further...

20060056110 - Thin film magnetic head with thermal flying height control pads located at both ends of all pads series on slider side plane: Embodiments of the invention prevent the write element lead wires from inducing crosstalk current in the read element lead wires. In one embodiment, a magnetic head slider comprises: a substrate portion; a heating resistor formed on the substrate portion through the intermediary of an insulation layer; a magnetic write element...

20060056111 - Head support mechanism head drive device and disk apparatus: A head support mechanism of the invention comprises a head (1011) for recording on a disk or reproducing a disk, a head support member composed of this head (1011) and a support arm (2) having this head (1011) attached to one end portion thereof, a base arm (12) including a...

20060056112 - Magnetoresistive head and fabricating method thereof, and read write separation type head: Making a geometric track width small does not decrease a read track width, resulting only in an output being reduced. In one embodiment, a seed layer, an underlayer, and a magnetic domain control layer are laminated on both sides of a magnetoresistive sheet unit. A lower electrode film is thinly...

20060056113 - Electronic device and wiring with a current induced cooling effect, and an electronic device capable of converting a temperature difference into voltage: Localized temperature increases inside integrated circuits due to heating at operation are prevented or controlled by electronic devices or wirings with CPP (current-perpendicular-to-plane) structure which has a current cooling effect. The CPP structure refers to a structure comprising a columnar electrically conductive portion and an insulator portion surrounding the conductive...

20060056116 - Bottom spin valve with laminated cofe free layer for ultra-high density recording: Two embodiments of a GMR sensor of the bottom spin valve (BSV) spin filter spin valve (SFSV) type are provided, together with methods for their fabrication. In one embodiment, the sensor has an ultra thin (<20 angstroms) single free layer and a composite high-conductance layer (HCL), providing high output, low...

20060056117 - Magnetoresistive effect element having hard magnetic films in non-uniform cross-sectional shape: A magnetoresistive effect sensor includes a pinned layer, a nonmagnetic spacer layer, and a free layer having a total thickness of at least 10 nm. The sensor has insulating films disposed on both side surfaces of the spin valve film. The sensor has hard magnetic films disposed on the insulating...

20060056114 - Magnetic tunnel device and magnetic memory using same: A magneto-resistance device is composed of an anti-ferromagnetic layer (5), a pinned ferromagnetic layer (20), a tunnel insulating layer (9) and a free ferromagnetic layer (21). The pinned ferromagnetic layer (20) is connected to the anti-ferromagnetic layer (5) and has a fixed spontaneous magnetization. The tunnel insulating layer (9) is...

20060056115 - Magnetoresistance effect device and method of production of the same: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented...

20060050426 - Magnetic recording medium, magnetic recording/reproducing apparatus, and stamper for manufacturing the magnetic recording medium: A reliable magnetic recording medium is provided which comprises a servo signal unit portions formed in a concavo-convex shape, easily produced, and resistant to tracking error. Also provided are a magnetic recording/reproducing apparatus which incorporates the magnetic recording medium, and a stamper for manufacturing the magnetic recording medium with efficiency....

20060050427 - Multi-dimensional coding for high-density storage media applications: An asynchronous transfer mode digital document delivery system is provided. A customer premise unit is configured to permit a customer to order and receive a data stream. A buffer is coupled to the customer premise unit to store the data stream before transmitting the data stream to a customer. A...

20060050428 - Transducing head: Determining an error in position of at least two heads coupled to a piezoelectric material, and changing a potential applied to a piezoelectric material to reduce the error in position of the at least two heads....

20060050429 - Flex spring for sealed connections: In an enclosure, electrical connections to a bulkhead connector may be made using a flex spring. The flex spring may have a frame and one or more spring members supported at their proximal ends by the frame. At their distal ends, the spring members may be configured to apply a...

20060050431 - Hard disk drive assembly having mounting bracket and mobile phone employing the same: Provided are a hard disk drive (HDD) assembly and a mobile phone employing the HDD assembly. The HDD assembly includes: a HDD including a base member, a cover member, a spindle motor installed on the base member, at least one data storage disk mounted on the spindle motor, and an...

20060050430 - Hard disk drive assembly, mounting structure for hard disk drive, and mobile phone adopting the mounting structure: Provided is a hard disk drive (HDD) assembly. The HDD assembly includes: a HDD including a base member, a cover member, a spindle motor, a data storage disk, and an actuator; and a printed circuit board (PCB) disposed beside the HDD and operating the HDD. The HDD assembly can be...

20060050432 - Head design with overlapping coil for narrow pitch tape head: The structure for a closely spaced, coplanar tape head array is disclosed. Narrow pitch is obtained by utilizing an overlapping coil structure, wherein write coils of adjacent heads overlap. The overlap is made possible by placing coils of adjacent heads at different levels within the thin film structure, separated by...

20060050433 - Narrow pitch tape head array using an orthogonal backgap: The structure for a closely spaced, coplanar tape head array is disclosed. Narrow pitch is obtained by utilizing an orthogonal backgap structure, wherein the width of the backgap is less than the depth, thereby narrowing the footprint of individual head structures. The increased cross sectional area of the orthogonal backgap...

20060050438 - Method and apparatus for attaching center hub: A disk cartridge holding therein a disk which is centrally attached with a disk-shaped center hub via a tacky ring formed of ring-shaped double sided adhesive tape material is produced by: driving a base film with tacky rings being attached on an upper surface of the base film; feeding the...

20060050435 - Recording disk cartridge: A recording disk cartridge includes: a cartridge case; a plurality of flexible recording disk media integrally rotatably housed within the cartridge case. The cartridge case includes: a lower plate for configuring a lower wall parallel to the recording disk media; an upper plate for configuring an upper wall parallel to...

20060050436 - Recording disk cartridge: A recording disk cartridge includes a plurality of flexible recording disk media integrally rotatably housed within a cartridge case including: a lower plate for configuring a lower wall; at least one inner plate partitioning the recording disk media; and an upper plate for configuring an upper wall, wherein the cartridge...

20060050437 - Recording disk cartridge: In a recording disk cartridge, a plurality of flexible recording disk media is housed in a cartridge case, and a rotational member is provided to support the plurality of flexible recording disk media and cause them to rotate in unison within the cartridge case. The cartridge case has an opening...

20060050434 - Recording disk cartridge, and assembling method and assembling apparatus thereof: A recording disk cartridge of the present invention integrally rotatably houses center cores, where a plurality of flexible recording disk media are fixed, within a cartridge case through spacers, wherein the cartridge case has a lower plate for configuring a lower wall parallel to the recording disk media; at least...

20060050439 - Recording medium cartridge and method of welding upper and lower halves of recording medium cartridge: When a recording medium cartridge having a flat housing which holds therein a recording medium is produced by butt-splicing peripheral walls of upper and lower shell halves by welding the upper and lower shell halves together at a plurality of points at the peripheral walls, the welding is performed with...

20060050440 - Multilayer narrow pitch tape head array: The structure for a narrow pitch tape head array is disclosed. Narrow pitch is obtained by offsetting the location of the write gaps of successively stacked coplanar head arrays. A compact structure with lower fabrication cost is obtained by sharing magnetic pole layers between the stacked co-planar arrays....

20060050441 - Recording and/or reproducing apparatus suspension assembly and method: A recording and/or reproducing apparatus including a suspension assembly. The suspension assembly may include a load beam coupled to one end of a swing arm, a flexure coupled to the load beam and supporting a slider, and a dimple formed along a surface of the flexure, facing the load beam,...

20060050442 - Micro-actuator, head gimbal assembly, and disk drive unit with the same: A head gimbal assembly includes a slider, a rotatable micro-actuator and a suspension to load the slider and the rotatable micro-actuator. The rotatable micro-actuator horizontally rotates the slider with a central portion of the slider as an axis, which includes a bottom plate to be connected with the suspension, two...

20060050443 - Helical scan tape system: In a helical scanning tape system including a magnetoresistive head; and a magnetic recording medium having a magnetic layer formed by oblique evaporation on a long nonmagnetic support, a signal being read with the magnetoresistive head by helical scanning, the track width of the magnetoresistive head is 0.5 to 0.8...

20060050444 - Magnetoresistive element, magnetic head, magnetic recording apparatus, and magnetic memory: A magnetoresistive element includes at least three metallic magnetic layers, at least two connection layers provided between the at least three metallic magnetic layers, each having an insulating layer and current confined paths including a metallic magnetic material penetrating the insulating layer, and electrodes which supply a current perpendicularly to...

20060050446 - Magnetic sensing element including laminated film composed of half-metal and nife alloy as free layer: A magnetic sensing element exhibiting a large ΔRA is provided, in which a free magnetic layer has a small coercive force Hc and a small magnetostriction constant λs. The free magnetic layer includes a Co2MnZ alloy layer (where Z may represent at least one element selected from the group consisting...

20060050445 - Magnetic film structure using spin charge, a method of manufacturing the same, a semiconductor device having the same, and a method of operating the semiconductor device: Provided are a multi-purpose magnetic film structure using a spin charge, a method of manufacturing the same, a semiconductor device having the same, and a method of operating the semiconductor memory device. The multi-purpose magnetic film structure includes a lower magnetic film, a tunneling film formed on the lower magnetic...

20060044658 - Detection of fly height change in a disk drive: A method for detecting a change in fly-height comprises measuring a baseline position error signal, measuring a position error signal at later time, and comparing the measured change in PES to a predetermined value. If the measured change in PES is greater than the predetermined value, it is determined that...

20060044659 - Method and apparatus for magnetization test of write head in a disk drive: A disk drive of a perpendicular magnetic recording system has a magnetization test function, for testing the magnetized state of a write head. The disk drive is provided with a write driver and a head amplifier unit. The write driver supplies a write current to the write head, for perpendicular...

20060044660 - Magnetic recording and reproducing apparatus: A magnetic recording and reproducing apparatus includes a separator and first and second amplifiers. The separator separates a servo data signal and a user data signal, both reproduced by a reproducing head. The first and second amplifiers are connected to the output stage of the separator to increase the amplitude...

20060044661 - Method for recording magnetic information and magnetic recording system: Stable writing is performed in a super high density hard disk where writing by magnetic field is difficult. A layered thin film structure including at least a magnetic metallic layer/a non-magnetic metallic layer/a magnetic metallic layer is formed, and a metallic probe is brought close to this multilayer film on...

20060044662 - Method to vary symmetry and coupling in symmetrical write drivers for disk driver preamplifiers: The present invention achieves technical advantages as a preamplifier write driver (10) having a varying common-mode output voltage. This varying common-mode output voltage also adjusts the derivative of the common-mode voltage, which is proportional to the amount of current coupled onto the MR head through parasitic capacitance. Currents of a...

20060044663 - Hard disk drive with multiple spindles: A disk drive including two or more spindles each carrying one or more media platters. The disk drive may have an industry standard sized chassis. By using reduced diameter platters, two spindles' platters can be fit within the chassis, increasing the capacity and/or performance of the drive. The two spindles'...

20060044664 - Drive control device of motor and disk rotation system: A drive control device of a DC brushless multi-phase motor performs the speed control of the motor in place microprocessor, the burden on the microprocessor is relieved. The drive control device detects a zero crossing point of the back electromotive force in the non-energizing phase to perform the energizing switching...

20060044665 - Ultra fast backup (ufb) track concept and method for recording same: A recording/playback recording medium comprising an elongated, flexible recording/playback medium having a predetermined width and a predetermined length, together defining a recording/playback area capable of providing a plurality of elongated recording/playback tracks; and information located on at least two tracks, a first track being recorded from the beginning of the...

20060044668 - Apparatus, medium, and method for protecting a storage medium in a portable device: A method, medium, and apparatus protecting a portable device protecting a HDD by instituting different protection mechanisms to an information processing apparatus based on a portable state/non-portable state of the portable device. The protecting of the HDD may include detecting whether the portable device is carried, detecting a movement of...

20060044669 - Data storage device, connector, and magnetic disk drive: Embodiments of the invention enable the flying of a slider to be lowered and increase recording density with a simple configuration in a magnetic disk apparatus. In one embodiment, a magnetic disk apparatus comprises a magnetic disk including tracks for recording data; a magnetic head slider disposed with a magnetic...

20060044667 - Method and apparatus for providing combined radial and timing multislot self-servowrite propagation: A method and apparatus for providing combined radial and timing multislot self-servowrite propagation is disclosed. Radial bursts are combined with each timing mark and requires only three recovery/read-write spacing allocations per sector. The channel operates without requiring the writing of any bursts between reading radial bursts....

20060044666 - Method of performing self-servo write using a helium environment: Methods of performing self-servo write using a helium environment are provided. In one embodiment, a recording disk is placed in an enclosure. The enclosure is filled with a gas that is substantially helium. Self-servo write is used to write circular track positioning information on the recording disk....

20060044670 - Method for preventing reduction in a reproduced output of a servo signal in a magnetic recording medium: Servo regions are re-magnetized in the present invention. A magnetic storage device measures a first amount which is indicative of the magnitude of magnetization of a servo region, by a read head portion. The first amount may be a reproduced output, or an inverse of a gain used in an...

20060044671 - Servo head with varying write gap width: A servo head comprising a write gap with a non-uniform width is described. It allows non-uniform width servo marks to be recorded on magnetic media. A servo head having a non-uniform width gap may create servo marks that facilitate servo position error signal calculations using time-based methods, amplitude-based methods, or...

20060044672 - Device for storage of data on data carriers accommodated in cassettes: For storage of data on data carriers accommodated in cassettes (28), a device is used with a magazine, having receptacles for cassettes (28) and with a robot unit (44) for changing the cassettes (28) between the receptacles and a drive (16). The magazine is movable relative to robot unit (44),...

20060044673 - Ultra fast backup (ufb) tape cartridge and method for loading same: A cartridge for operatively housing a recording/playback medium comprising a first spool and a second spool located at offset positions inside a cartridge shell body; a recording/playback medium of a fixed width and length wound around the first and second spools; and a plurality of slant tape guides positioned between...

20060044674 - Electronic data connector of data storage cartridge and associated cartridge drive: A data storage cartridge comprising a hard drive and a cartridge housing. The hard drive includes a non-tape storage medium and an electronic data connector including a plurality of connection pads for accessing the non-tape storage medium. The cartridge housing substantially encloses the hard drive. The plurality of connection pads...

20060044675 - Apparatus of performing self-servo write using a helium environment: Apparatuses and/or systems for performing self-servo write using a helium environment are provided. In one embodiment, an intake tube is coupled to an intake hole that is associated with an enclosure for enclosing a recording disk. A helium gas transport mechanism is coupled to the intake tube and the helium...

20060044676 - Hard spacer in recording disk drive and method of making the same: A spacer is utilized in a recording disk drive, for example. The spacer is made of a mixed material at least including first inorganic powder having the particle size in a range from 10 μm to 100 μm, second inorganic powder having the particle size in a range from 0.01...

20060044679 - Magnetic head, head suspension assembly, magnetic reproduction apparatus, and method of manufacturing magnetic head: A magnetic head for use in the vicinity of a magnetic recording medium, comprising a substrate, a close contact layer laminated on the substrate, and a protective layer which is laminated on the close contact layer and which faces the magnetic recording medium, the protective layer comprising a first layer...

20060044678 - Method for minimizing magnetically dead interfacial layer during coc process: A method for applying a protective layer to an electronic device such as the ABS of a slider, magnetic head, etc. for reducing paramagnetic deadlayer thickness includes selecting an etching angle for minimizing formation of a paramagnetic deadlayer at an interface of an electronic device and an adhesive layer subsequently...

20060044677 - Pole width control on plated bevel main pole design of a perpendicular magnetic recording head: A main pole layer is deposited within an opening in a patterned photoresist layer on a substrate. The photoresist is thinned to expose an upper portion of a pole tip region that is then trimmed to a rectangular shape while a lower portion retains an inverted trapezoidal shape. Thereafter, a...

20060044680 - Laminated high moment magnetic films with antiferromagnetic coupling as write pole of perpendicular magnetic recording head: A perpendicular write head includes a main pole comprising high moment magnetic layers laminated with both soft magnetic layers and non-magnetic layers for antiferromagnetic coupling (AFC) between the high moment material layers....

20060044682 - Self aligned wrap around shield for perpendicular magnetic recording: A write element for use in perpendicular magnetic recording. The write element including a write pole and a self aligned wrap around shield that can have a trailing shield gap thickness that is different from its side shield gap thickness. The materials making up the trailing shield gap and the...

20060044683 - Thin film magnetic head structure, method of manufacturing the same, and method of manufacturing thin film magnetic head: The present invention provides a method of manufacturing a thin film magnetic head in which MR height and neck height can be determined with high precision. A plurality of thin film magnetic head bars are formed so as to include a plurality of thin film magnetic head precursors, a plurality...

20060044681 - Write pole and method of manufacturing the same: A magnetic write head and method of fabrication, in accordance with one embodiment of the present invention, includes depositing a first hard mask layer on a layer of magnetic material, depositing a second hard mask layer on the first hard mask layer, depositing a third hard mask layer on the...

20060044684 - Recording disk cartridge: A recording disk cartridge accommodating a plurality of flexible recording media is provided having ease of construction and of changing the number of the media, and an excellent dustproof ability. A plurality of magnetic disc media 41 exemplifying the recording disc media are housed in a cartridge case 2. The...

20060044685 - Recording disk cartridge: A recording disk cartridge has a plurality of flexible recording disk media integrally rotatably housed within a cartridge case which comprises a lower plate for configuring a lower wall parallel to said plurality of the recording disk media, at least one inner plate that is stacked and fixed on said...

20060044686 - Recording disk cartridge: Disclosed is a recording disk cartridge which improves its assembly and production capacities, as well as the flexibility of the design. The recording disk cartridge that has a cartridge case including flexible recording disk media in an integrally rotatable fashion, a lower plate forming a lower wall of the cartridge...

20060044687 - Information recording medium, recording/reproducing apparatus, and stamper: On an information recording medium, a data track pattern and a servo pattern composed of a concave/convex pattern including a plurality of convex parts are formed on at least one surface of a substrate and respective concave parts in the concave/convex pattern are filled with non-magnetic material. In the concave/convex...

20060044688 - Magnetic disk with protection film and magnetic disk manufacturing method: Embodiments of the invention provide a magnetic disk capable of maintaining a satisfactory sliding resistance and having a high corrosion resistance and a manufacturing method thereof. The magnetic disk and the manufacturing method thereof are realized by forming a protection film having a less film thickness distribution on a magnetic...

20060044689 - Slider with bonding pads opposite the air bearing surface and method for producing the same: A slider having bonding pads opposite an air bearing surface and a method for producing the same is disclosed. Bonding pads are formed on the side of a slider assembly opposite the air bearing surface (ABS) to allow electrical probing devices on the slider while applying pressure to the slider...

20060044691 - Magnetic recording medium, head slider and manufacturing methods therefor: A magnetic recording medium and head slider that can furnish excellent head flying stability, a magnetic recording device having excellent head flying stability, and a method for manufacturing, in a short time, a magnetic recording medium and head slider that can furnish such excellent head flying stability, are provided. For...

20060044690 - Method and apparatus for manufacturing silicon sliders with reduced susceptibility to fractures: A method and apparatus for manufacturing silicon sliders with reduced susceptibility to fracture of the substrate from which they are manufactured is disclosed. A monocrystalline silicon wafer is formed having an orientation in the {100} crystallographic plane. The silicon wafer includes a notch for orienting the silicon wafer, wherein the...

20060044692 - Flying height compensation for up/down bit error rate trend difference: A disk drive that has a plurality of heads coupled to one or more disks. The heads have air bearing surfaces that compensate for a radial crown and a radial camber of an adjacent disk to maintain a flying height at a relatively constant level across the disk surface. By...

20060044693 - Base member and information storage apparatus: In an information storage apparatus, a relatively thin attachment member has a cylindrical boss section projecting from a surface thereof and a path passing through the attachment member and reaching the extreme end of the boss section and is attached to a relatively thick base member. The base member has...

20060044694 - Limiter for integral flexible circuit suspension assembly and method of assembling: A limiter used to limit the motion of a ring gimbal with attached slider relative to a load beam within a head suspension assembly of a disk drive. The ring gimbal includes a flexible substrate supporting at least one electrical lead and a limiter assembly joined to a portion of...

20060044695 - System and apparatus for continuous reference plane for wireless suspension and method of fabrication: A reference plane is added to the freestanding conductors of a wireless suspension to maintain a continuous reference plane therein. Post processing steps to the flexure are used after the underlying steel has been etched and prior to any forming or welding steps. Two screens are used to add an...

20060044696 - Recording disk drive capable of suppressing load acting on head suspension: A guiding passage is formed on a ramp member. The guiding passage defines an inclined surface getting closer to a reference plane including the surface of a recording disk at a position closer to an inoperative position of a lad tab. A restriction member is allowed to restrict the movement...

20060044697 - Rotary head having an adjustment magnetic head and a magnetic recording/reproducing apparatus: The present invention provides a rotary head comprising a tubular rotary cylinder; and a magnetic head for carrying out at least one of recording and reading of information with respect to a magnetic tape transported about the rotary cylinder; wherein the magnetic head is supported so as to be movable...

20060044698 - Disk drive with rotary piezoelectric microactuator: A disk drive with a dual-stage actuator has a moving-slider rotary piezoelectric microactuator as the secondary actuator. The microactuator has a substrate attached to the disk drive suspension. A rotatable frame that supports the slider is attached to a fixed post on the substrate by relatively stiff torsional springs. A...

20060044699 - Rotary piezoelectric microactuator and disk drive head-suspension assembly: The invention is a moving-slider rotary piezoelectric microactuator as the secondary actuator for a dual-stage actuator disk drive. The microactuator has a substrate attached to the disk drive suspension and a rotatable frame that supports the slider, so the head-suspension assembly includes the suspension, the microactuator and the slider with...

20060044700 - Reorientation of magnetic layers and structures having reoriented magnetic layers: Methods of reorienting ferromagnetic layers of a plurality of magnetoresistive elements and structures formed by the methods. The plurality of magnetoresistive elements, preferably GMR multilayer elements, are manufactured and arranged on a planar substrate. The method effectively allows selective orientation and reorientation of distinct ferromagnetic layers of a subset of...

20060044701 - Magnetic head, head suspension assembly, and magnetic reproduction device: A magnetic head provided with magnetoresistance effect element, the magnetic head comprises first shielding layer superimposed on one surface of the magnetoresistance effect element and whose area is larger than that of this one surface, a first lead layer formed ranging from a portion where the first shielding layer is...

20060044702 - Repeatable esd protection: A method for shorting, unshorting, and reshorting an electronic component such as an MR sensor provides a repeatable ESD protection scheme. A conductive line of an electrically conductive first shorting material is created between electrical leads operatively coupled to an electronic component for creating a short therebetween. The short is...

20060044703 - Spin injection device, magnetic device using the same, magnetic thin film used in the same: A spin injection device capable of spin injection magnetization reversal at low current density, a magnetic apparatus using the same, and magnetic thin film using the same, whereby the spin injection device (14) including a spin injection part (1) comprising a spin polarization part (9) including a ferromagnetic fixed layer...

20060044705 - Cpp magnetic detecting element including a cofe pinned layer or free layer: A CPP magnetic sensing element is provided which may exhibit a large value of ΔRA (the product of the resistance variation ΔR and area A of the magnetic sensing element). The magnetic sensing element includes a free magnetic layer and a pinned magnetic layer. At least one of these layers...

20060044704 - Cpp spin valve with ultra-thin cofe(50%) laminations: Fe rich CoFe can be used in AP1 to enhance CPP GMR. However, this is found to degrade the electro-migration performance of the device. This problem has been solved by using an AP1 that is a laminate of several CoFe(25%) layers, separated from one another by copper layers. Ultra-thin layers...

20060044707 - Magnetic tunnel junction with in stack biasing layer providing orthogonal exchange coupling: A magnetoresistive sensor having an in stack bias structure. The sensor includes a bias spacer that allows biasing of free layer magnetic moment in a direction orthogonal to the magnetic moment of the biasing layer....

20060044708 - Sensor with in-stack bias structure providing enhanced magnetostatic stabilization: A magnetic head having an in-stack bias structure and a free layer structure. The in-stack bias structure includes an antiferromagnetic layer, and first through fourth antiparallel (AP) pinned bias layers separated by three AP coupling layers. A first spacer layer is positioned above the fourth bias layer of the bias...

20060044706 - Sensor with in-stack bias structure providing exchange stabilization: A magnetic head having an in-stack bias structure and a free layer structure. The in-stack bias structure includes an antiferromagnetic layer; a first bias layer positioned towards the antiferromagnetic layer, a magnetic moment of the first bias layer being pinned by the antiferromagnetic layer; a first antiparallel coupling layer positioned...