Dynamic magnetic information storage or retrieval inventions

20080100941 - Apparatus and method for content management of a portable device: A content-management apparatus of a portable device. The apparatus includes a display unit to display content by time and function in a content area having a time axis and a function axis, and a content generation unit to combine at least two sets of content.... Agent: Stein, Mcewen & Bui, LLP

20080100943 - Apparatus and method for internal calibration of normalized playback transfer curve in a hard disk drive: Method calibrates an assembled hard disk drive for read head accessing rotating disk surface, by estimating non-linearity of that playback device based on two data patterns, which have a short transition-pair waveform and a long transition-pair waveform. By linearly constructing a simulated long transition-pair waveform from the short transition-pair waveform... Agent: Gregory Smith & Associates

20080100942 - Method and system for distinguishing spatial and thermal defects on perpendicular media: Disclosed are a method and system for distinguishing spatial and thermal defects on perpendicular media. The magnetic domains of the perpendicular media are oriented to have a first polarity, scanned using a read head, oriented to have a second polarity and scanned again. The signals from the read head are... Agent: Townsend And Townsend And Crew, LLP

20080100945 - Formatted storage media providing space for encrypted text and dedicated space for clear text: A storage library is provided for formatting a mobile data storage element, such as a tape, with a first space dedicated for clear text or text as received by a host, such as an Independent Software Vender, wherein the first space is intended to accommodate header information which includes attributes... Agent: Spectra Logic C/o Hiscock & Barclay, LLP

20080100946 - Apparatus, system, and method for redundant identification of a storage medium format: An apparatus, system, and method are disclosed for redundant identification of a storage medium format. The apparatus for redundant identification of a storage medium format is provided with a plurality of modules configured to functionally execute the necessary steps of writing a Format Identification Data Set (“FID”) to a plurality... Agent: Kunzler & Mckenzie

20080100947 - Magnetic recording and playback method and magnetic recording and playback apparatus: A magnetic recording and playback apparatus that is configured to carry out recoding on and playback of a tape-like recording medium using a magnetic head mounted on a rotating drum by employing helical scanning is provided. The apparatus includes a multi recording head configured to record a plurality of tracks... Agent: Robert J. Depke Lewis T. Steadman

20080100948 - Apparatus, system, and method for measuring magnetoresistive head resistance: An apparatus, system, and method are disclosed for measuring magnetoresistive head assembly resistance. A measurement module measures a reference voltage across a reference resistance while applying a reference current to the reference resistance. In addition, the measurement module measures a test voltage across a first biasing resistor, a MR head... Agent: Kunzler & Mckenzie

20080100949 - Automatic stop mechanisms for tape recorders: Disclosed is an automatic stop mechanism for a tape recorder comprising a circular member having a driving pin, a swing member hinged onto a main board of the recorder, a driving member which can make the swing member push a locking level to move transversely, and a torsion spring member... Agent: Morgan Lewis & Bockius LLP

20080100950 - Control device, control method, and storage apparatus: Upon recording, a clearance control unit performs preheating by an added control value (B+R) of a base heater control value B and an adjustment heater control value R and switches that to merely the base heater control value B when it reaches a target sector so as to perform write.... Agent: Greer, Burns & Crain

20080100951 - Head controller, storage device, and head controlling method: A level peak-acquiring unit acquires a peak of a signal level during a calibration wherein a heater power is increased from zero to a predetermined power. A sample acquiring unit acquires in a sampling range, a sample of a combination of the heater power and the signal level. A linear... Agent: Greer, Burns & Crain

20080100952 - Detection and measurement of position error signal linearity in timing based servo patterns using differential nonlinearity: Systems, computer implemented methodology, and computer readable media for measuring position error signal differential nonlinearity in timing based servo patterns. A set of two or more reading heads, positioned at various locations along a servo stripe and orientated transverse to the longitudinal motion of the tape, collect PES data concerning... Agent: Hogan & Hartson LLP

20080100954 - Control method to reduce settle tmr in hard disk drives: A hard disk drive with a circuit that provides a control signal to a voice coil motor to move a head across a disk of a drive. The circuit includes a state estimator that provides a plurality of state estimates and a disturbance estimator that provides a disturbance estimate that... Agent: Irell & Manella LLP

20080100953 - Feedforward compensator for induced vibration: A feedforward compensator for induced vibration is disclosed. Controlled motions in an actuator induce mechanical disturbances in a surrounding cabinet. The feedforward compensator allows such disturbances to be compensated for without the need of a vibration sensor. The compensator provides a feedforward compensation signal configured to compensate for a mechanical... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080100955 - Higher-order state estimator for low tmr in hard disk drives: A hard disk drive with a servo circuit that provides a control signal to a voice coil motor to perform a servo to align a head with a disk track of the drive. The servo circuit includes a fifth order state estimator that provides five estimates that are used to... Agent: Irell & Manella LLP

20080100956 - Seek adaptation system in hard disk drives: A hard disk drive with a voice coil motor circuit that provides a current to a voice coil motor to perform a seek routine in a seek time. The disk drive includes a temperature sensor to sense a temperature of the disk drive and a voltage sensor to sense the... Agent: Irell & Manella LLP

20080100957 - Media separator plate with multiple features: A media separator plate is provided having a plate main body and a shroud. The plate main body has a continuous, non-interrupted inner circumference and a continuous, non-interrupted outer circumference. The plate main body extends from the inner circumference to the outer circumference and includes a top surface and a... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080100944 - Head ic, read circuit, and media storage device: A head IC adjusts an amplitude level of head read signals with regard to scattering in head output characteristics, so as to conform to the input dynamic range of the read channel AGC. An AGC amplifier is provided in a head IC connected to a read channel, and the feedback... Agent: Greer, Burns & Crain

20080100958 - Two-plane balance for spindle motors: In a spindle hub configured for rotation about an axis, through holes extend from a first end of the spindle hub to a second end of the spindle hub. The through holes are generally parallel to the axis. A method of achieving two-plane balance of a disc pack assembly by... Agent: Seagate Technology LLC C/o Novak Druce & Quigg LLP

20080100959 - Magnetic write head having a shield that extends below the leading edge of the write pole: A magnetic write head for perpendicular magnetic recording that has a write pole and a trailing or side shield that has a leading edge that extends to or beyond the leading edge of write pole, thereby ensuring complete side magnetic shielding. The write head can be formed by forming the... Agent: Zilka-kotab, PC- Hit

20080100961 - Multi-channel head: A multi-channel head includes a substrate and a plurality of recording elements arranged on the substrate in a track width direction. At least one of the recording elements satisfies BGW<PW and BGD>BGW, where PW represents a pole width, BGW and BGD represent a width and a depth, respectively, of a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080100960 - Wafer and insulation characteristic monitoring method: The present invention provides an insulation characteristic measuring method of measuring electrical insulation of magnetic head elements formed on a wafer. Each of the magnetic head elements includes an upper magnetic pole layer, a lower magnetic pole layer, insulation layers disposed between the upper and lower magnetic pole layers, and... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20080100962 - Perpendicular magnetic recording medium, method of fabricating the same, and magnetic recording system: A crystallized ferromagnetic layer containing Fe, Co and/or Ni, formed as a polycrystalline ferromagnetic layer is used as a part of the anti parallel soft under layer (APS-SUL) structure in perpendicular media to reduce the thickness of the intermediate layer. The soft under layer structure consists of a non-magnetic spacer... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20080100963 - Data storage device using magnetic domain wall movement and method of operating the same: Provided are a data storage device using a magnetic domain wall movement and a method of operating the data storage device. The data storage device includes a magnetic layer which has a plurality of magnetic domains, a current applying unit which applies current for a magnetic domain wall movement to... Agent: Sughrue Mion, PLLC

20080100964 - Magnetic recording system with medium having antiferromagnetic-to- ferromagnetic transition layer exchange-coupled to recording layer: A magnetic recording disk drive has a bilayer recording medium of a high-anisotropy recording layer and an exchange-coupled antiferromagnetic-to-ferromagnetic (AF-F) transition layer. The transition layer has an AF-F transition temperature (TAF-F) that decreases relatively rapidly with increasing applied magnetic field. Thus the transition layer has a transition field HAF-F(T), which... Agent: Thomas R. Berthold

20080100965 - Manufacturing method of head gimbal assembly, head slider, and storage device: A head slider includes inside an alumina member, a first heater, a first resist, and a second heater entirely covered by a second resist shields. Another shield is arranged such that a predetermined surface of the other shield touches the second resist. The coefficient of thermal expansion of the second... Agent: Greer, Burns & Crain

20080100966 - Head slider and method of making the same and grinding apparatus for head slider: A head slider includes a non-magnetic insulating film overlaid on the outflow end surface of a slider body. A second protection film is overlaid on the surface of the non-magnetic insulating film. A heater is embedded in the non-magnetic insulating film to induce a protrusion of the non-magnetic insulating film.... Agent: Greer, Burns & Crain

20080100967 - Cooling of head actuator of disk device: A magnetic disk device includes a swing-type head actuator which is driven by a voice coil motor. The voice coil motor is cooled by an airflow generated when a magnetic disk accommodated in a disk accommodating unit of an enclosure is rotated by a spindle motor. An airflow dividing member... Agent: Greer, Burns & Crain

20080100969 - Magneto-resistance effect element including free layer having multilayer constitution including magnetic body mixed with element having 4f electrons: In an MR element constituted in such a manner that a pinned layer whose magnetization direction is fixed, a nonmagnetic spacer layer, and a free layer whose magnetization direction is changed according to an external magnetic field, are laminated in this order; the free layer has a multilayer constitution including... Agent: Knobbe Martens Olson & Bear LLP

20080100968 - Magneto-resistive effect device, thin-film magnetic head, head gimbal assembly, and hard disk system: The invention provides a giant magneto-resistive effect device (CPP-GMR device) having a CPP (current perpendicular to plane) structure comprising a spacer layer, and a fixed magnetization layer and a free layer stacked one upon another with the spacer layer interposed between them, with a sense current applied in a stacking... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080100970 - Current-perpendicular-to-the-plane (cpp) magnetoresistive sensor with impedance adjustment: A current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) read head structure has the MR read head located between first and second shields (S1, S2) on a substrate with a shunt resistor R1 connecting S1 to the substrate and a shunt resistor R2 connecting S2 to the substrate, with R1 and R2 being approximately... Agent: Thomas R. Berthold

20080100971 - Biosensor and sensing cell array using the same: A biosensor and a sensing cell array using a biosensor are disclosed. Adjacent materials containing a plurality of different ingredients are analyzed to determine the ingredients based on their magnetic susceptibility or dielectric constant. A sensing cell array includes such as a magnetization pair detection sensor including a MTJ (Magnetic... Agent: Townsend And Townsend And Crew, LLP

20080094740 - Determining the reliability of a disk drive: Embodiments of the present invention pertain to determining the reliability of a disk drive. According to one embodiment, values for a parameter associated with a particular type of component of the disk drive are detected while simulating customer usage of the disk drive. The values are stored to enable analyzing... Agent: Hitachi C/o Wagner Blecher LLP

20080094742 - Servo patterns for patterned media: Servo patterns for patterned media. The servo pattern includes specification of cylinder/track ID with and without a Gray code. The servo pattern space is minimized by the optimum usage of the islands. This is achieved by island allocation rules to take advantage of non-magnetic island. The island allocation also provides... Agent: Hitachi Global Storage Technologies, Inc.

20080094745 - Playback equipment and supplying method in playback equipment: According to one embodiment, a playback equipment includes a recording section which records information on a magnetic disc C, a motor which rotates the magnetic disc, a nonvolatile memory B which stores information in a recording area, a display section which displays the information on a screen, a playback section... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080094743 - Track width measurement for magnetic recording heads: One embodiment in accordance with the invention is a method for measuring a track width for a magnetic recording head comprising writing a first track and a second track on a disk at two different positions. Note that the first track is written at a frequency plus a frequency shift... Agent: Hitachi C/o Wagner Blecher LLP

20080094746 - Data reading method and storage device: A disk drive correctly recognizes newly written data when a plurality of readable data exist on the same sector of the same track, by comparing AGC values of each of the readable data, comparing error rates generated by Viterbi decoding, or both. An offset value determining means determines whether an... Agent: Patrick G. Burns Greer, Burns & Crain, Ltd.

20080094747 - System, method, and apparatus for slit shroud with integrated bypass channel wall feature for disk drive applications: A disk drive slit shroud mitigates a discontinuity in the bypass channel with an additional wall feature formed on the slit shroud. When installed, the wall feature fills the gap in the wall of the bypass channel that would otherwise be required to accommodate a slit shroud of sufficient surface... Agent: Bracewell & Giuliani LLP

20080094748 - Top disk-damper imbedded hard disk drive: A hard disk drive that at least one disk that is rotated by a spindle motor. The rotating disk creates a flow of air within the disk drive. A damper is located adjacent to the disk. The damper reduces the velocity of the air flow and any vibration associated with... Agent: Irell & Manella LLP

20080094741 - Electronic apparatus having built-in hard disk device: A hard disk device has a temperature detection device operable to detect a temperature in the hard disk device. A controlling section is operable to control functions of an electronic apparatus. A notifying section is operable to notify an abnormality of the electronic apparatus. The controlling section acquires the temperature... Agent: Morgan Lewis & Bockius LLP

20080094744 - Method and apparatus for evaluating a magnetic recording medium: A method of evaluating a magnetic recording medium using a magnetic head having a reproduction element is disclosed The method includes the steps of (a) recording a signal in a predetermined area of the magnetic recording medium; (b) determining a first value of a reproduction output by reproducing the predetermined... Agent: Greer, Burns & Crain

20080094750 - Method for making a perpendicular magnetic recording write head with a self aligned stitched write shield: A perpendicular magnetic recording (PMR) head with single or double coil layers has a small write shield stitched onto a main write shield. The stitched shield allows the main write pole to produce a vertical write field with sharp vertical gradients that is reduced on both sides of the write... Agent: Saile Ackerman LLC

20080094749 - Fly height actuator/void region in basecoat: A transducing device responsive to magnetic fields includes a writer, a reader, an actuator, and a void. The actuator is positioned proximate the writer and reader. The void is positioned between at least one of the reader and writer and a substrate of a sensing device. The void is also... Agent: Kinney & Lange, P.A.

20080094751 - Method of manufacturing thin-film magnetic head and thin-film magnetic head: A method of forming a thin-film magnetic head comprises a lower magnetic pole layer forming step of forming a lower magnetic pole layer; a lower magnetic pole projection forming step of forming the lower magnetic pole layer with a lower magnetic pole projection; a gap layer forming step of laminating... Agent: Oliff & Berridge, PLC

20080094752 - Housing for information storage medium and method using same: A method to write information to, or retrieve information from, an information storage medium disposed within a portable data storage cartridge moveably disposed in a data storage and retrieval system, wherein the data storage and retrieval system further comprises a data storage device. The portable data storage cartridge comprises a... Agent: Dale F. Regelman

20080094753 - Transducer device and assembly: The invention concerns a transducer device and assembly. A transducer device and assembly according to the invention comprise sheet of electrical insulator covering connection pads of a transducer component. The sheet of electrical insulator has on its surface connection pads that have galvanic contacts with the connection pads of the... Agent: Harrington & Smith, PC

20080094754 - Method of manufacturing a head assembly: A method of manufacturing a head assembly improves the attachment position precision of a gimbal and a slider with a head, increases the efficiency of the attachment process, and can be carried out at low cost using small-scale equipment. The method of manufacturing includes an adhesive applying step of applying... Agent: Kratz, Quintos & Hanson, LLP

20080094755 - Thin-film magnetic head with heating portion and protrusion adjustment portion and manufacturing method of head: A thin-film magnetic head is provided, which includes, an substrate with ABS; a read or write head element provided on an element-formed surface of the substrate; at least one protrusion adjustment portion whose end reaches a slider end surface on the ABS side, which provides on an element-formed surface of... Agent: Oliff & Berridge, PLC

20080094756 - Carriage assembly of a hard disk drive: There is provided a carriage assembly of a hard disk drive where a convex pattern that makes it possible to mount a magnetic head with high precision in parallel on a gimbal is provided on the gimbal and where it is possible to use the same convex pattern regardless of... Agent: Greer, Burns & Crain

20080094757 - Fluidic stripper assembly with load/unload ramp: An apparatus which provides improved positional control for an access element moveable adjacent a rotatable surface, such as a data transducing head adjacent a data recording disc in a data storage device. The apparatus comprises a fluidic stripper with one or more cantilevered arms which project proximate a corresponding array... Agent: Fellers, Snider, Blankenship, Bailey & Tippens, PC (seagate Technology LLC)

20080094758 - Piezoelectric actuated suspension with passive damping in hard disk drives: A piezoelectric actuated suspension with passive damping is disclosed for precision positioning of hard disk drive while reducing undesired shock vibrations. Along the longitudinal axis of an etched suspension, two piezoelectric actuators dispose near the base plate to provide a push-pull motion. The actuators have two main portions. The first... Agent: Evan Law Group LLC

20080094759 - Method for making a perpendicular magnetic recording write head with a self aligned stitched write shield: A method of making a perpendicular magnetic recording (PMR) head with single or double coil layers and with a small write shield stitched onto a main write shield. The stitched shield allows the main write pole to produce a vertical write field with sharp vertical gradients that is reduced on... Agent: Saile Ackerman LLC

20080094760 - Data storage device using magnetic domain wall movement and method of operating the same: Provided are a data storage device using a magnetic domain wall movement and a method of operating the data storage device. The data storage device includes a magnetic layer including a plurality of magnetic domains, first and second ferromagnetic pinned layers formed on lower and upper surfaces of the magnetic... Agent: Sughrue Mion, PLLC

20080094761 - Magnetoresistive sensor having shape enhanced pinning, a flux guide structure and damage free virtual edges: A magnetoresistive sensor having a shape enhanced pinning and a flux guide structure. The sensor includes a sensor stack with a pinned layer, spacer layer and pinned layer. First and second hard bias layers and lead layers extend from the sides of the sensor stack. The hard bias layers and... Agent: Zilka-kotab, PC- Hit

20080088962 - Detection of hdi in disk drives using read back signal: A hard disk drive that is capable of inhibiting a write operation when a varying fly height is detected. The disk drive includes a filter circuit that filters a read signal read from a disk. By way of example, the filter circuit may be a low pass filter with a... Agent: Irell & Manella LLP

20080088963 - Progressive track width head and method: A tape head according to one embodiment includes an array of readers, each of the readers having a track width, wherein the track width of an inner reader of the array is greater than a track width of an outer reader relative thereto. A tape head according to another embodiment... Agent: Zilka-kotab, PC- Ibm

20080088964 - Self-tuning settle controller in hard disk drives: A hard disk drive with a voice coil motor controlled by a circuit. The circuit provides a driving current to the voice coil motor to move a head of the drive in a seek routine. The seek routine includes a settle mode that has an initial state and a velocity... Agent: Irell & Manella LLP

20080088965 - Online identification of secondary actuator transfer function via system decoupling in multiple-stage actuator servo systems in disk drives: A hard disk drive that includes a voice coil motor and a micro-actuator. The micro-actuator is controlled by a servo that utilizes a micro-actuator controller and a corresponding micro-actuator transfer function. The servo enters a mode to self-determine at least one transfer function coefficient of the micro-actuator controller.... Agent: Irell & Manella LLP

20080088970 - Disk apparatus: A disk apparatus includes a cartridge holder, a pair of guide walls, a disk motor, a head, a base, first and second slider guides, first and second open/close sliders respectively having first and second engageable portions. The slider guides are provided in the cartridge holder for supporting the disk cartridge,... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20080088966 - Servo control method and apparatus in seek retry condition and disk drive apparatus using the same: A servo control method in a seek retry condition includes determining whether the seek retry condition is generated, and terminating a servo control process that is currently performed and decelerating a voice coil motor such that a speed of the voice coil motor is minimized using a back electromotive force... Agent: Stanzione & Kim, LLP

20080088967 - Tape recording system with coupled paired roller guides: A tape recording system is provided for coupling the angular velocities of a pair of roller guides disposed one on either side of a head assembly. In one embodiment, the roller guides each comprise cylindrical first and second surfaces wherein the first surfaces guide a tape over the head assembly.... Agent: International Business Machines Corporation

20080088968 - Storage medium drive: A head actuator includes first and second yoke members. An elastic adhesive member is coupled to the second yoke member. A weight is coupled to the elastic adhesive member. The displacement of a coil in the head actuator causes a carriage to swing. The displacement of the coil generates a... Agent: Greer, Burns & Crain

20080088969 - Magnetic disk drive and manufacturing method thereof: Embodiments of the present invention allow a cover of a magnetic disk drive to be temporarily joined to a base without widening a mounting space, and completely joined after a head disk assembly (HDA) inspection. According to one embodiment, a cover includes a metal plate, an adhesive, and a seal... Agent: Townsend And Townsend And Crew LLP

20080088971 - Magnetic head for perpendicular magnetic recording: A magnetic layer for writing incorporates: a pole layer having an end face located in a medium facing surface; and an upper yoke layer. A first magnetic layer for flux concentration is connected to the pole layer at a location away from the medium facing surface, and allows a magnetic... Agent: Oliff & Berridge, PLC

20080088972 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: A magnetic head comprises a pole layer, a first coil, a second coil, and a shield. The shield incorporates: a first portion located backward of the pole layer along the direction of travel of a recording medium; a second portion located forward of the pole layer along the direction of... Agent: Oliff & Berridge, PLC

20080088973 - Silicon substrate for magnetic recording medium and magnetic recording medium: To provide a substrate which is not substantially chipped or cracked on the substrate end faces even when the substrate is a silicon substrate made of a brittle material, and provide a substrate which prevents dust raising from the substrate end faces and prevents dust raising due to rubbing with... Agent: Sughrue Mion, PLLC

20080088974 - Head slider reducing probability of collision against recording medium and method of making the same: The head slider allows the first protection film having the first thickness to cover over the top surface of the rail. The second protection film having the first thickness covers over the surface of the insulating non-magnetic film at a position downstream of the rail. The third protection film having... Agent: Patrick G. Burns Greer, Burns & Crain, Ltd.

20080088975 - Method for forming an electrical interconnect to a spring layer in an integrated lead suspension: A method for forming an electrical interconnect to the spring metal layer in an integrated lead suspension or suspension component of the type having a multi-layer structure including a spring metal layer and a conductor layer separated by a dielectric insulator layer. The method includes forming an aperture through at... Agent: Faegre & Benson LLP Patent Docketing

20080088976 - Surface spacing using rigid spacers: An apparatus comprises a storage medium, a substrate separated from the storage medium by a gap, and a plurality of spacers defining a distance between the storage medium and the substrate, wherein the spacers include a curved end.... Agent: Pietragallo Gordon Alfano Bosick & Raspanti, LLP

20080088977 - Heat transfer for a hard-drive pre-amp: A substrate for mounting a preamp chip thereupon, fabricated using a stiffener layer made of a conductive material; an insulating layer provided over the circuitry area of the substrate; a circuitry made of a conductive material provided over the insulating layer; and a flap which is an extension of the... Agent: Sughrue Mion, PLLC

20080088978 - Heat transfer for a hard-drive wire-bond pre-amp: An actuator assembly for a hard disk drive having an actuator arm; a carrier plate of a thermally conductive material mounted onto the actuator arm; a circuitry substrate mounted onto the carrier plate, the substrate comprising a stiffener layer made of conductive material and electrical circuitry; a preamp wire-bond chip... Agent: Sughrue Mion, PLLC

20080088979 - Head slider including heater causing expansion of lower shielding layer: A head slider includes upper and lower shielding layers embedded in an insulating non-magnetic film overlaid on the outflow end surface of a slider body. A magnetoresistive film is embedded between the lower and upper shielding layers. A heating wiring pattern is located at the back of the lower shielding... Agent: Patrick G. Burns Greer, Burns & Crain, Ltd.

20080088980 - Magnetoresistive element and magnetic memory: A magnetoresistive element includes a free layer which contains a magnetic material and has an fct crystal structure with a (001) plane oriented, the free layer having a magnetization which is perpendicular to a film plane and has a direction to be changeable by spin-polarized electrons, a first nonmagnetic layer... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080088981 - Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing system: There is provided a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers to be controlled, and a magnetic head and magnetic recording and/or reproducing system using the same. Ina magnetoresistance effect element wherein a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080088982 - Emr sensor and transistor formed on the same substrate: Magnetic sensing chips and methods of fabricating the magnetic sensing chips are disclosed. A magnetic sensing chip as described herein includes an EMR sensor formed on a substrate from multiple semiconductor layers. One or more of the semiconductor layers form a quantum well comprising a two-dimensional electron gas (2DEG) or... Agent: Duft Bornsen & Fishman, LLP

20080088983 - Damping control in magnetic nano-elements using ultrathin damping layer: A layer system, a method for forming the layer system, and devices utilizing the layer system are provided. In one embodiment, the method includes providing a bilayer system comprised of a first layer including a first ferromagnetic material doped with a dopant material selected from one of a 4d transition... Agent: Patterson & Sheridan, L.L.P.

20080088984 - Pattern transfer with self-similar sacrificial mask layer and vector magnetic field sensor: A method is provided for producing a lithographic pattern using a mask that includes the same materials as the material to be etched, allowing the pattern to be transferred and the etch mask to be removed in one step. In accordance with features of the invention, the method includes building... Agent: Joan Pennington

20080088987 - Exchange-coupled film, method for making exchange-coupled film, and magnetic sensing element including exchange-coupled film: An exchange-coupled film includes a seed layer, an antiferromagnetic layer, and a ferromagnetic layer. The seed layer is formed at a thickness that is larger than the critical thickness, and the thickness of the seed layer is then decreased by etching so as to be smaller than or equal to... Agent: Brinks Hofer Gilson & Lione

20080088986 - Hafnium doped cap and free layer for mram device: A high performance MTJ, and a process for manufacturing it, are described. A capping layer of NiFeHf is used to getter oxygen out of the free layer, thereby increasing the sharpness of the free layer-tunneling layer interface. The free layer comprises two NiFe layers whose magnetostriction constants are of opposite... Agent: Stephen B. Ackerman

20080088985 - Magnetic head having cpp sensor with partially milled stripe height: A magnetic head including a CPP read head sensor. The CPP sensor includes a layered sensor stack including a free magnetic layer, a tunnel barrier layer, a pinned magnetic layer and an antiferromagnetic layer. An ion milling process is used to perform a partial depth material removal to establish the... Agent: Intellectual Property Law Offices

20080084627 - Exchange-bias based multi-state magnetic memory and logic devices and magnetically stabilized magnetic storage: Magnetic materials and methods for using ferromagnetic and antiferromagnetic coupling and exchange bias for binary and multistate magnetic memory device.... Agent: Fish & Richardson, Pc

20080084628 - Head amplifier with a heat controller: Timely and proper flying height adjustment is achieved using a controller, which is designed for a magnetic recording and reproducing apparatus that does not use a magnetic head having a heating element for flying height adjustment without any modification. A head amplifier includes a write amplifier for applying a write... Agent: Oliff & Berridge, Plc

20080084629 - Write element before read element with early servo termination on write: Embodiments of the present invention provide a magnetic disk drive system in which the write element leads the read element in the tangential direction of rotation of the magnetic disk. In addition, the servo sector information is preferably arranged such that information that is not needed for write operation is... Agent: Townsend And Townsend And Crew LLP

20080084630 - Media cover for manufacturing a disk drive: A method is disclosed for manufacturing a disk drive. At least one disk is installed into a base, and a media cover is coupled to the base, wherein the media cover covers at least a portion of the disk. After installing the media cover, a head coupled to an actuator... Agent: Western Digital Technologies, Inc. Attn: Renee M. Quick

20080084631 - Apparatus and method for integral filter and bypass channel in a hard disk drive: Embodiments of the present invention are directed to an apparatus and method for guiding bypass reentry flow through filter integrated in a bypass channel sidewall 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... Agent: Hitachi C/o Wagner Blecher LLP

20080084633 - Information recording media, method of manufacturing the information recording media, read/write head, and method of manufacturing the read/write head: An information recording medium, a method of manufacturing the information recording medium, a read/write head, and a method of manufacturing the read/write head are provided. The information recording medium includes magnetic recording layers formed of a ferromagnetic substance and electrical recording layers formed of a ferroelectric substance. The read/write head... Agent: Sughrue Mion, Pllc

20080084632 - Perpendicular magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus: A perpendicular magnetic recording medium having an even higher recording density, and a magnetic recording and reproducing apparatus which utilizes the perpendicular magnetic recording medium is provided. The perpendicular magnetic recording medium comprises at least a backing layer, an intermediate layer, a perpendicular magnetic recording film, and a protective film,... Agent: Sughrue Mion, Pllc

20080084634 - Devices and methods for storing data: Devices and methods are disclosed for storing data in manner that is readable and highly resistant to destruction. An exemplary data-storage device includes a medium; multiple, discrete, data-containable loci located in or on the medium; and an alignment restraint. Each data-containable locus includes magnetically responsive particles that are magnetically alignable... Agent: Klarquist Sparkman, LLP

20080084635 - Magnetic recording medium and method of manufacturing the same: Provided are a magnetic recording medium and a method of manufacturing the magnetic recording medium. The magnetic recording medium includes a substrate, a soft magnetic underlayer formed on the substrate, a texturing layer formed on the soft magnetic underlayer and including a uniform pattern, and a recording layer including magnetic... Agent: Sughrue Mion, Pllc

20080084636 - Method for increasing storage capacity and a transducer configuration incorporating the same: The present invention provides a method for increasing storage capacity of a disc drive by physically skewing a transducer in relation to a slider supporting the transducer. The physical skew angle of the transducer is configured to provide a predetermined zero skew position on the medium, which is capable of... Agent: Fish & Richardson Pc

20080084637 - Optimized design for a contact start-stop slider: A head that flies relative to a disk of a hard disk drive. The head includes a substrate that has a pole tip, and an air bearing surface that has at least one rail and a central pad. The air bearing surface also has a plurality of contact dot that... Agent: Irell & Manella LLP

20080084638 - Material selection for a suspension assembly: A suspension assembly is disclosed having a base, a load beam region and a spring region. The spring region is positioned between the base and the load beam region. The spring region includes a material having a ratio of modulus of elasticity to yield strength that is less than 100.... Agent: Seagate Technology Llc C/o Westman Champlin & Kelly, P.a.