Dynamic magnetic information storage or retrieval inventions 10/06

20060238911 - Data transfer apparatus head cleaning: A data transfer apparatus is described for transferring data between at least one transducer head of the data transfer apparatus and a data medium removably received in the data transfer apparatus. The data transfer apparatus is operable to monitor at least one data transfer performance characteristic, and to use results...

20060238910 - Recording and/or reproducing device having an ejection amount adjustment mechanism capable of changing ejection amount in a software fashion: An ejection position detection mechanism has an arc-shaped plate, attached to a mode gear, having a plurality of detected elements provided at positions corresponding to a plurality of ejection positions of a cartridge, and a detection arrangement, disposed near to the arc-shaped plate, for detecting the plurality of detected elements....

20060238912 - Magnetic disk drive and recording method: Embodiments of the invention provide a recording method capable of improving reliability of write data in a magnetic disk drive employing the servo area data system. In a magnetic disk drive according to one embodiment, vibration of a head/slider can be detected with a vibration sensor attached to a head...

20060238913 - Access performance adjusting method and storage apparatus: An access performance adjusting method is adapted to a storage apparatus having a storage to prestore a skew quantity that is used to shift a data write starting position of each track of a recording medium depending on a head moving time required to move a head from one track...

20060238914 - Formed in place vibration damper or dampers: A formed in place damper for a data storage device. The damper is formed of an elastomeric bead which is cured to a cover or component to form a damper body having contoured shape or surface formed by an outer surface of the cured elastomeric bead. The damper is formed...

20060238915 - Bypass channel for a disk drive: Embodiments of the present invention are directed to a data storage device comprising a housing and a disk pack mounted to the housing which has a plurality of disks that are rotatable relative to the housing. The disk pack defines an axis of rotation and a radial direction relative to...

20060238918 - Method of manufacturing a magnetic head and a magnetic head: A main magnetic pole of a recording head is formed in an inverted trapezoidal shape by ion milling but, the long milling time poses a problem of variations in the inverted trapezoidal shape and the dimensional variations in track width. In one embodiment of the invention, a recording head is...

20060238916 - Thin film magnetic head and manufacturing method thereof: The present invention is directed to a thin-film magnetic head having no ATE problem, a very narrow track width, an excellent O/W characteristic and a high switching speed. A lower pole film of a write element is provided on one face of a lower yoke film inside a trench portion...

20060238917 - Thin film magnetic head and manufacturing method thereof: A thin-film magnetic head for perpendicular magnetic recording according to the present invention comprises a coil to generate a magnetic field, and a main pole layer to perform the perpendicular recording using the magnetic field generated by said coil. The lower surface as to the layer-forming direction of said main...

20060238919 - Adaptive data cleaning: A data cleaning process includes the steps of: validating data loaded from at least two source systems; appending the validated data to a normalized data cleaning repository; selecting the priority of the source systems; creating a clean database; loading the consistent, normalized, and cleansed data from the clean database into...

20060238920 - Transportation system for a disk-like object and system for inspecting disk-like object: A transportation system for a disk-like object and a system for inspecting a disk-like object are disclosed. The transportation system comprises a first element (10) and a second element (20) which are arranged in such a way that between the first element (10) and the second element (20) a free...

20060238921 - Head gimbal assembly and magnetic disk drive with solder ball connection: Embodiments of the invention provide a head gimbal assembly (HGA) capable of effecting solder ball connection with use of low energy. In one embodiment, the HGA includes a head/slider. In the head/slider, slider pads and lead wire pads are connected to each other by reflow of solder balls under the...

20060238922 - Head, head suspension assembly, and disk device provided with same: A slider of a head has a negative-pressure cavity which is formed in the facing surface and generates a negative pressure, a leading step portion which protrudes from the facing surface and is situated on an upstream side of the air current with respect to the negative-pressure cavity, and a...

20060238923 - Connecting module for communication: A connecting module comprises a body, a housing and a transmission device disposed in the body. The transmission device comprises a fixed element having a guiding slot, a slider and a movable bar. The movable bar drives the slider to horizontally move along the guiding slot, to disengage the body...

20060238924 - Write/read head provided with an intergrated microactuator: c

20060238925 - Magnetoresistive structures and fabrication methods: Disclosed herein is a magnetoresistive structure, for example useful as a spin-valve or GMR stack in a magnetic sensor, and a fabrication method thereof. The magnetoresistive structure uses twisted coupling to induce a perpendicular magnetization alignment between the free layer and the pinned layer. Ferromagnetic layers of the free and...

20060232868 - System and method of performing digital multi-channel audio signal decoding: A system and method are disclosed for performing digital multi-channel decoding of a BTSC composite audio signal. Each subsequent stage of the digital multi-channel decoding process is performed at the lowest sampling rate that yields acceptable performance for that stage. Analog-to-digital conversion of the composite audio signal is performed first...

20060232869 - Apparatus for excitation, enhancement, and confinement of surface electromagnetic waves for confined optical power delivery: An apparatus for producing an optical spot on the order of 25 nm in a recording media. The apparatus includes an optical transducer comprising a waveguide which defines an aperture adjacent to an air bearing surface of the transducer adjacent a recording media. The transducer includes a protrusion extending beyond...

20060232871 - Medium dependent write equalization: A medium dependent write equalization method is disclosed. The method includes identifying a trait of a magnetic medium. A characteristic of a write equalization signal is then defined according to the identified trait of the magnetic medium....

20060232870 - Pattern dependent write equalization: A pattern dependent write equalization method is disclosed. The method includes identifying a trait of a data pattern in a stream of write data. A characteristic of a write equalization signal is then defined according to the identified trait for the data pattern....

20060232872 - Prevention of data storage tape detachment from data storage cartridges: The invention is directed to techniques to substantially reduce or eliminate detachment of data storage tape from data storage cartridges. A data storage cartridge may include a housing enclosing a spool with data storage tape spooled on the spool. A region of the data storage tape extends from the spool...

20060232873 - Design for high fly write immunity: An embodiment of a slider in accordance with the present invention for use in a hard disk drive having a rotatable disk can include a plurality of rails arranged across a surface of the slider such that an air bearing is formed when the slider is positioned over the disk...

20060232874 - Disk drive with enhanced storage capacity increase ratio: Embodiments of the invention provide a disk drive that is capable of enhancing the storage capacity increase ratio while reducing the processing load for read/write operations. In one embodiment, a disk drive comprises a recording medium and a control section. The recording medium includes concentric or spiral data tracks. Each...

20060232875 - Method and apparatus for controlling disc drive using counter-electromotive force: A method and an apparatus to control a disc drive, and more particularly, a method and an apparatus to control a disc drive using an indirectly determined counter-electromotive force. The method of controlling the disc drive using a counter-electromotive force includes determining a change in a servo parameter of the...

20060232878 - Disk device: According to one embodiment, a disk device includes an open-topped, plate-like base, a plate-like top cover which is attached to the base and closes a top opening, a printed circuit board provided opposite the base on the reverse side thereof, and a plate-like bottom cover which covers the reverse side...

20060232877 - Improved structure for portable electronic device: An improved structure for portable electronic device is presented using elastic material for building guide rails for support, protecting a mini storage device inside the portable device, and permitting the consumer, while using the portable electronic device, to protect the mini storage device from shock damage. The portable electronic device...

20060232876 - Thermal stress relieved overmolded mounting base: A method of manufacturing and an overmolded mounting base. A plate is provided with mounting surfaces having a range of alignments including a nominal alignment. The plate is overmolded to form an overmolded plate. The overmolding changes the alignment of the mounting surfaces. The overmolded plate is maintained at a...

20060232879 - Rack mountable data recording assembly: A recording assembly having a rack mountable housing is disclosed. The rack mountable housing disclosed has a width dimension sized to fit within a standard opening or spacing between rails of the rack. The recording assembly is mounted to rails on the rack via mounting flanges. The mounting flanges include...

20060232881 - Magnetic disk drive and fixing clamp: Embodiments of the invention provide a small, thin, yet reliable magnetic disk drive. In one embodiment, a magnetic disk drive comprises: a motor hub including a disk support portion and a flange portion, the disk support portion supporting a magnetic disk thereon, the flange portion being located higher than the...

20060232880 - Mounting system for a storage media disc: A mounting system for a storage medium comprises a washer. The washer has a peripheral rim that is subject to a mounting distortion. The storage medium comprises a mounting rim facing the peripheral rim. The mounting rim is separated from the peripheral rim by an isolation space. Isolation material is...

20060232882 - P3 fabrication with nife and alumina mask using resist shrinking process: A method for forming a P3 layer with NiFe and alumina mask using resist shrink process for use in perpendicular magnetic write heads. The method includes forming a laminated layer, forming an alumina layer on top of the laminated layer, depositing a conductive layer onto the laminated layer, forming a...

20060232883 - Filled-gap magnetic recording head and method of making: A filled-gap magnetic recording head is provided comprising a flat or cylindrical contour head having a row of magnetic transducers in a gap region disposed between a rowbar substrate and a closure. The gap region is intentionally recessed to have a predetermined recess profile below a tape support surface. An...

20060232884 - Tape head having a support plate with contoured surface: A tape recording head is provided comprising a support plate having a contoured surface with an opening in the contoured surface which allows head chips to protrude far enough to allow proper head tape contact for recording. The support plate is fixed on a coarse actuator so that the support...

20060232885 - Slider and manufacturing method thereof, head gimbal assembly, disk drive with same: The invention discloses a manufacturing method of slider. The slider comprises an incline portion (6) connecting a read/write portion (24) disposed with a convex configuration on an air bearing surface opposite to a recording medium, and a concave portion (26) adjacent to an end thereof where airflow flows in. The...

20060232886 - Improved planarization process for producing carriers with low step height: A process to reduce step heights in planarization of thin film carriers in an encapsulation system. The improvements include using an adhesive tape having a thinner adhesive thickness and a stiffer tape for the film sealing the encapsulant on the carrier to result in a low step height surface transition...

20060232888 - Disk drive with side erase control: Embodiments of the invention provide a disk drive that is capable of effectively controlling a side erase, which is one of the problems with the use of the perpendicular recording technology. In one embodiment, tracks on a recording medium are formed concentrically or spirally by overwriting a primary side track,...

20060232887 - Head suspension: A head suspension for a disk drive is capable of improving shock property of the hard disk drive while miniaturizing the hard disk drive. A head suspension has a base plate to be attached to a carriage and turned around a spindle of the carriage, a load beam which includes...

20060232889 - Integrated-lead suspension vibration-canceling member: An apparatus, system, and method are disclosed for compensating for high-gain vibration modes resulting from asymmetrical traces in integrated lead suspensions in hard disk drives. A compensation member secures to an actuated arm opposite a mount plate securing a head gimbal assembly (HGA) to the arm. The compensation member includes...

20060232890 - Method of head stack assembly flexible circuit assembly attached to an actuator arm: A method for mounting a head stack assembly (HSA) circuit assembly is disclosed. A flexible circuit substrate may be coupled to a stiffener. The stiffener may be a metal, such as aluminum, or some other stiff and durable material. The flexible circuit substrate may be made of an organic material...

20060232891 - Contained environmental control system for mobile event data recorder: An environmental control system, or data pack, is provided in accordance with embodiments of the present invention. The system allows for audio and video recording on hard drive media in situations where temperature, vibration and humidity would otherwise have prevented the use of such technology. The system can be used...

20060232892 - Suppression of spin momentum transfer and related torques in magnetoresistive elements: An apparatus comprises a ferromagnetic free layer having a first magnetic moment and having a magnetization that rotates in response to an external magnetic field, a first ferromagnetic reference layer positioned adjacent to a first side of the ferromagnetic free layer and having a second magnetic moment that is greater...

20060232893 - Current in plane magnetoresistive sensor having a contiguous hard bias layer located at back edge of stripe height: A current in plane giant magnetoresistive (GMR) sensor having a hard bias layer that extends along the back edge (strip height) of the sensor rather than from the sides of the sensor. The hard bias layer preferably extends beyond the track width of the sensor. Electrically conductive leads, which may...

20060232894 - Magneto-resistance effect element, magneto-resistance effect head, magneto-resistance transducer system, and magnetic storage system: A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the...

20060227445 - Disk drive with variable density data tracks: A disk drive has multiple disk surfaces and corresponding heads, each disk surface includes multiple regions, and each head is for recording on and playback of information from a corresponding disk surface. The data track density in a first region on a first disk surface is greater than the data...

20060227446 - Over-writing data in a recording system: A recording system stores recording cycle information identifying the parameters for recording user data on a particular data sector. During a subsequent operation, the recording system employs the recording cycle information to select a different set of parameters for recording new user data at the particular data sector. One of...

20060227447 - Method and system for read gate timing control for storage controllers: A disk controller that controls data transfer between a storage device and a host system is provided. The disk controller includes logic having a state machine that controls de-assertion of a read gate signal based on sector size and/or whether a data segment is split or non-split. The read gate...

20060227448 - Magnetic disk storage apparatus: Currents of sine waveforms can be fed through coils by a relatively small-sized circuit, and thereby, highly dense magnetic storage can be realized with less rotation variations and a driving control circuit of a motor rotating at a low noise level can be provided. A coil of one phase of...

20060227451 - Magnetic disk drive and magnetic disk medium: Embodiments of the invention increase the convenience of a magnetic disk drive for portable use by shortening a period of time required to record a large amount of data, and by increasing the reproduction time, in the magnetic disk drive. In one embodiment, an area between servo data parts is...

20060227449 - Method and apparatus for optimizing record quality with varying track and linear density by allowing overlapping data tracks: A method and apparatus for optimizing data record quality on a disk for a pair of read and write heads, in which the write head is bigger, by adaptively varying linear and track density of overlapping recorded tracks to achieve a target storage capacity. In the method, target storage capacity...

20060227450 - Method of configuring storage space in a data storage device: Methods and apparatus for configuring and storing data in a data storage device to increase storage capacity while ensuring acceptable data reliability are provided. The methods may involve providing a data zone and a risk zone, which forms an outer region of the disc and is known to have a...

20060227452 - Method to avoid contact between the head and disk protrusions: A hard disk drive with a controller that controls a movement of a head relative to a disk. The controller causes the head to avoid a defect on the disk during a seek routine. The location of the defect is previously identified and stored in the drive. The drive may...

20060227453 - Magnetic disk drive with isolation wall: Embodiments of the invention provide a magnetic disk drive whose flexibility in the layout of components is enhanced in spite of the fact that a magnetic disk and a driving section such as the voice coil motor that drives a head arm are isolated from each other. In one embodiment,...

20060227454 - Control element: The invention is directed to a control element, particularly in a central control unit. A magnet clamping system is integrated into a control element in order to render the function “slider setting” unequivocal. In addition to an actuator head that is positioned on a shaft, which is guided in a...

20060227455 - Spindle motor with flexible circuit board and disk drive including the same: A spindle motor for rotating a recording disk such as a magnetic disk is disclosed. The stator coil of the spindle motor is connected to an external device using a FPC including an outer frame located on the upper surface of a circular core back of the stator core and...

20060227456 - Laminated write gap to improve writer performance: Embodiments of the present invention recite a write gap structure for a magnetic recording head. In one embodiment, the write gap structure comprises at least one layer of inert material is disposed proximate to the P2 pole of a magnetic recording head. A layer of magnetic material is disposed between...

20060227457 - Tape head read/write module: A tape head read/write module that has a composite air bearing surface, and a method and apparatus for embedding a chip in a substrate to form a composite air bearing surface. An example of the module includes a substrate that has an air bearing surface, a front, a back, and...

20060227458 - Corrosion inhibitors and methods for magnetic media and magnetic head read-write device: Corrosion inhibitor compositions and methods useful in finishing, grinding, cleaning, and other operations involving materials used in the manufacture of magnetic reading/writing heads and magnetic storage media. The compositions contain at least one azole compound, are soluble in ethylene glycol, propylene glycol, glycerin and isopropyl alcohol, and provide corrosion resistance...

20060227459 - Integrated tape and data transducer head cleaning device: Described herein are integrated cleaning devices for cleaning data tapes and/or data head transducers, tape drives including such cleaning devices, and methods of using these cleaning devices and tape drives including the cleaning devices. Cleaning devices for cleaning data tapes and/or data head transducers may include a base having a...

20060227460 - Magnetic tape and magnetic tape cartridge: A magnetic tape which is run at a speed of 4 m/sec. or higher and has recording tracks with a width of 21 μm or less, and which includes a non-magnetic support, at least one magnetic layer formed on one surface of the non-magnetic support, and a backcoat layer formed...

20060227461 - Method and apparatus for providing an additional ground pad and electrical connection for grounding a magnetic recording head: Method and apparatus are presented for electrically coupling a slider to ground. In one embodiment, a bonding pad is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pad is electrically coupled within the slider body to components that...

20060227462 - Reversed pressure relief valve: A reversed pressure relief valve that is used in connection with a computer hard disk drive so as to vent pressurized gases contained within the disk drive while not permitting debris to enter the drive mechanism or the valve. More specifically, the present invention is a reversed direction valve which...

20060227463 - Suspension assembly with molded structures: A support assembly includes a base layer, a circuit defined along the base layer, and a first material molded on at least a portion of the base layer. The first material substantially forms a shape of at least a portion of the support assembly. Further disclosed is a molded suspension...

20060227464 - Apparatus and method for damping slider-gimbal coupled vibration of a hard disk drive: An apparatus and method for damping slider-gimbal coupled vibration of a hard disk drive is disclosed. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also provided, the slider coupled with the suspension at a...

20060227465 - Magneto-resistance effect element and magnetic memory: It is possible to reduce a current required for spin injection writing. A magneto-resistance effect element includes: a first magnetization pinned layer; a magnetization free layer; a tunnel barrier layer; a second magnetization pinned layer whose direction of magnetization is pinned to be substantially anti-parallel to the direction of magnetization...

20060227467 - Magnetic detecting element with diffusion-preventing layer between spacer cu and magnetic layer, and method of manufacturing the same: The free magnetic layer is formed to have a three-layered structure of a CoMnZ alloy layer, a CoMnX alloy layer, and a CoMnZ alloy layer. The CoMnX alloy layer is formed of a metal compound whose compositional formula is represented by CoaMnbXc (X is one or more elements selected from...

20060227466 - Spin-injection magnetoresistance effect element: The present invention provides a spin-injection magnetoresistance effect element that can avoid use of a large writing current and allows use of a large reading current. The spin-injection magnetoresistance effect element includes (A) a magnetization reversal layer that has a first face and a second face and stores information, (B)...

20060221476 - Magnetic disk apparatus, method for reproducing magnetic recording, and method for read retry: In the case that perpendicular magnetic recording is used, when a cut-off frequency fc of a high-pass filter of a head output is small, an error rate can be improved more when a PR target having a DC component is used and, when the cut-off frequency fc is large, an...

20060221477 - Two-level demodulation method and device: The invention relates to a method for demodulating information emitted by amplitude modulation with two levels by a reader (2) to a transponder (4), comprising a step to determine if this symbol is identical to or is different from the previous symbol, after each symbol....

20060221478 - Method and apparatus for providing a read channel having imbedded channel signal analysis: A method and apparatus for providing a read channel having imbedded channel signal analysis is disclosed....

20060221479 - Method and apparatus for recording servo frame, storage disk, and method and apparatus for obtaining servo frame information: A servo-frame recording apparatus includes: a sector information rearranging section for rearranging serial bits of the sector information that is binary data; a first ExOR section for performing the ExOR (exclusive OR) on the sector information, the serial bits of which have been rearranged by said sector information rearranging section,...

20060221480 - Digital data recording method and digital data recording apparatus: A plural-channel simultaneous recording of AV data by using a DVD recorder is provided. The plural-channel simultaneous recording is executed while suppressing a fluctuation of a video image and an audio sound occurring upon recording and reproduction of the AV data in which real-time streaming performance is required in recording...

20060221481 - Write precompensation method for perpendicular magnetic recording: A method is presented for precompensation of Non-Linear Transition Shift (NLTS) in magnetic recording media using a perpendicular recording write head. The method includes maintaining a count of non-transition data bits (“zeroes”) preceding a data transition (“one”) to be written. A precompensation value is assigned which correlates to the count...

20060221482 - Thermally assisted magnetic recording head and method of manufacturing the same: In order to prevent deterioration of floating characteristics of a slider due to deformation of a slider floating surface by thermal expansion of a coil, the followings are performed. A recessed portion is formed in a part of the slider, and a device for generating an optical near-field and the...

20060221483 - Thermally assisted magnetic recording method: A thermally assisted magnetic recording method includes the following steps. The recording layer of a magnetic recording medium is irradiated with a laser beam to produce a locally heated region. This heated region is moved by causing the recording layer and the laser beam to move relative to each other....

20060221484 - Magnetic disk apparatus: A magnetic disk apparatus with a magnetic disk medium capable of recording data magnetically, comprises a current perpendicular to plane magnetic reproducing head which includes a magnetoresistive effect element composed of a plurality of magnetic films stacked one on top of another and causes sense current to flow in the...

20060221485 - Library apparatus and hand mechanism for library apparatus: A library apparatus comprises a plurality of cartridges each containing a recording medium, a storage rack in which the plurality of cartridges is stored, at least one drive that records or reproduces data in or from the cartridge, and an accessor that holds the cartridge and transports the cartridge between...

20060221489 - Method and apparatus for protecting magnetoresistive heads from electrostatic discharge: An apparatus and method for providing electrostatic discharge protection for a disc drive read head. A pair of depletion mode MOSFETS, and a fuse associated with each are disposed between the read head output terminals. The MOSFETS are controlled to an “off” state for testing the preamplifier prior to assembly...

20060221487 - Method to determine temperature dependent write pre-compensation in a hard disk drive: Methods in accordance with the present invention can include determining a plurality of sets of write pre-compensation parameters. At baseline conditions, the hard disk drive can apply a first current and write pre-compensation parameters can be tuned to generate a desired write current waveform that can be applied to the...

20060221488 - Multi-disk simultaneous servo writing device: One embodiment of the present invention is a servo writing device that includes: (a) an actuator; (b) a first pushpin block that is coupled to a first side of the actuator and is adapted to drive a first head stack assembly during servo writing on a first disk; and (c)...

20060221490 - Ramp unload in disc drives: Embodiments of the present invention provide for apparatus and methods for performing unload operations, including enabling read/write heads to reach a desired velocity at the ramp. Embodiments of the present invention are particularly beneficial for handheld products where low power consumption and reliability are important requirements....

20060221486 - Reading tracks from a media during back-emf velocity control: A method in accordance with the present invention includes determining a set of tracks scanning during testing of the disk surface for defects. An average load position or a load position a slider over a disk surface from a ramp during loading and unloading from the disk surface is determined...

20060221491 - Head position calculation method in magnetic disc apparatus: m

20060221492 - Method for resonance identification in hard disk drives: A hard disk drive that redefines a notch filter of the drive. The update process may include initially disabling all notch filters and inducing a seek operation of the disk drive heads. A position error signal is read during a settling time of the seek operation and processed to determine...

20060221493 - Coined features including material flow openings: A housing or cover having a coined region or regions to provide additional clearance or height within form factor dimensions of the housing or cover. In embodiments described, the housing or cover includes coined regions which have a smaller body thickness dimension than a stock thickness of the housing or...

20060221494 - Disk device: According to one embodiment, a case of a magnetic disk device has a sheet-shaped base with an open upper surface formed of a soft magnetic material, and a sheet-shaped top cover with an open upper surface formed of a soft magnetic material and attached to the base. A disk-shaped recording...

20060221495 - Motor unit and recording disk driving device: In a motor of a motor unit, a base plate includes a raised portion protruding from a surrounding portion on a side of the stator portion opposite to a rotor portion. A raised face of the raised portion is perpendicular to a central axis and is formed in an annular...

20060221496 - Low recession tape head: A magnetic recording head is provided comprising a flat contour head having a deposited closure. An ion-milled trench or recess is provided near the substrate edge to create a lip or wear zone between the trench edge and the substrate/gap interface. As the tape passes over the head, the lip...

20060221497 - Perpendicular magnetic recording head and method for production thereof: Embodiments of the invention provide a perpendicular magnetic recording head that causes the difference between a physical track width and an effective track width to be small. Sides of a main pole are made concave with the concave vertex on each side located close to a trailing edge of the...

20060221498 - Head design with low coefficient of thermal expansion insert layer: A magnetic read/write head is produced with an insert layer between the substrate and the magnetic transducer. The insert layer has a lower coefficient of thermal expansion than the substrate, which reduces the temperature pole tip recession (T-PTR) of the head because the insert layer is an intervening layer between...

20060221499 - Thin film magnetic head and magnetic recording apparatus: The present invention provides a thin film magnetic head realizing the gradient and the strength of a perpendicular magnetic field increased as much as possible. A main magnetic pole layer is made recede from a write shield layer. As compared with the case where the magnetic pole layer is not...

20060221500 - Magnetic head slider: A magnetic head slider disposed opposite to a surface of a magnetic disk, includes a slider main body, a magnetic head element that reads and reproduces data from the magnetic disk, and a vibration absorbing unit that absorbs vibrations generated due to contact between any portion of the slider main...

20060221501 - Slider, magnetic head assembly and manufacturing the same: A slider includes electrode pads each of which is bonded to an electrode pad of a flexible printed circuit board through a solder ball. Surface cleaning is performed on the electrode pad of the slider in a vacuum atmosphere, and an Au surface protective film is formed on a new...

20060221502 - Magnetic head and manufacturing method of the same: A magnetic head includes a head slider configured to float above a recording medium and having an element part for recording to and reproducing from the recording medium, the element part being situated on a medium facing surface facing to the recording medium. The medium facing surface has a first...

20060221503 - Head suspension: A head suspension for a hard disk drive is thin from an arm to a head and involves a minimum step between the arm and a load beam. The head suspension includes a load beam that includes a rigid part and a resilient part. The load beam applies load onto...

20060221504 - Head suspension: A head suspension for a hard disk drive is thin from an arm to a head and involves a minimum step between the arm and a load beam. The head suspension includes a load beam that includes a rigid part and a resilient part. The load beam applies load onto...

20060221505 - Head actuator and information storage apparatus: A head actuator that positions a head to perform information recording or playback on a computer readable storage medium, has a voice coil flanked by magnets. Through the voice coil a drive current flows and a damper to fit in a space between the voice coil and one of the...

20060221506 - Head stack assembly, its manufacturing method, and magnetic disc drive having the same: A method for manufacturing a head stack assembly that includes a pair of suspensions each of which supports a head, an arm that drives the head, and a pair of base plates that attach the pair of suspensions to both sides of the arm that has a perforation hole, each...

20060221507 - Magnetic sensor: A magnetic sensor has a magnetic oscillation element including a first magnetic resonance layer, a second magnetic resonance layer, a nonmagnetic layer sandwiched between the first and second magnetic resonance layers, and a pair of electrodes which supply a current perpendicularly to planes of the first resonance layer, the nonmagnetic...

20060221508 - Gmr spin-valve element evaluation method, magnetic head manufacturing method, and magnetic storage device: A method for evaluating a magnetized state of a pinned layer of a magnetoresistive spin-valve element used, together with a recording element, in a magnetic head, is provided. The method includes the steps of (a) supplying a first alternating current to the recording element, while supplying a second current for...

20060221513 - Magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in a hard magnetic in-stack bias layer: A magnetoresistive sensor having an in stack bias layer with an engineered magnetic anisotropy in a direction parallel with the medium facing surface. The in-stack bias layer may be constructed of CoPt, CoPtCr or some other magnetic material and is deposited over an underlayer that has been ion beam etched....

20060221514 - Magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in a hard magnetic pinning layer: A magnetoresistive sensor having a hard magnetic pinning layer with an engineered magnetic anisotropy in a direction substantially perpendicular to the medium facing surface. The hard magnetic pinning layer may be constructed of CoPt, CoPtCr, or some other magnetic material and is deposited over an underlayer that has been ion...

20060221515 - Magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in a self biased free layer: A magnetoresistive sensor having a self biased free layer. The free layer is constructed upon an underlayer that has been treated by a surface texturing process that configures the underlayer with an anisotropic roughness that induces a magnetic anisotropy in the free layer. The treated layer underlying the free layer...

20060221512 - Sensitivity gmr sensors: Improved sensitivity GMR sensors useful for thin film magnetic read heads are disclosed. Spin transfer induced destabilization of the magnetic free layer is suppressed through the application of Tb containing alloys in the free layer. Sense currents can be increased by a factor of five in comparison to prior art...

20060221511 - Low-resistance tunnel magnetoresistive effect element, and manufacturing method, testing method and testing apparatus for the element: A TMR effect element with sufficiently reduced element resistance and restricted popping noise is provided, which comprises a tunnel barrier layer formed primarily of a metal oxide including many electric charge sites. The electric charge sites density n and the mobility μ of electrons trapped due to the electric charge...

20060221510 - Magnetic tunnel junctions including crystalline and amorphous tunnel barrier materials: Magnetic tunnel junctions are disclosed that include ferromagnetic (or ferrimagnetic) materials and a bilayer tunnel barrier structure. The bilayer includes a crystalline material, such as MgO or Mg—ZnO, and Al2O3, which may be amorphous. If MgO is used, then it is preferably (100) oriented. The magnetic tunnel junctions so formed...

20060221509 - Magnetoresistive sensor based on spin accumulation effect with free layer stabilized by in-stack orthogonal magnetic coupling: A magnetoresistive sensor based on the spin accumulation effect has an in-stack biasing structure with a ferromagnetic biasing layer that is magnetically-coupled orthogonally with the sensor free ferromagnetic layer across a spacer layer. The sensor has an electrically conductive strip with a first tunnel barrier and a free ferromagnetic layer...