Dynamic magnetic information storage or retrieval inventions 02/07

20070041114 - Data loss prevention method of a media storage device and media storage device: A media storage device which reads and writes data from and to a storage medium using a head prevents in advance data loss due to thermal relaxation of data recorded on the storage medium. Management information is created, in units of received write commands, for holding the recording areas on... Agent: Greer, Burns & Crain

20070041115 - Methods and systems for automatically characterizing non-linearities of a read-back signal of a recording system: A method for automatically characterizing non-linearities of a perpendicular read-back signal of a recording system is disclosed. The method includes using dibit extraction to obtain a read-back signal having a main pulse and a plurality of echoes where the read-back signal exhibits a baseline shift. An area under the first... Agent: Wagner, Murabito & Hao LLP

20070041113 - Write mode servo scan diagnostic for magnetic tape data storage cartridge: A diagnostic for magnetic tape data storage drives and magnetic tape data storage cartridges comprises a magnetic tape data storage drive having more stringent servo error detection in write mode than in read mode. The magnetic tape data storage drive is set to a write mode, the write mode nominally... Agent: John H. Holcombe IBM Corporation,IPLaw Dept.

20070041116 - Tap coefficient determining method and apparatus, and digital signal phase locking method and apparatus: A method determines tap coefficients of a phase interpolation finite impulse response (FIR) filter with respect to a digital-signal phase-locked loop processing apparatus including an A/D converter receiving a reproduced signal serving as digital data and sampling the received reproduced signal at a frequency higher than a data rate frequency... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070041118 - Data loss prevention method of a media storage device and media storage device: A media storage device reads and writes data from and to a storage medium using a head and prevents in advance data loss due to thermal relaxation of data recorded on the storage medium. Table stores information which is related to a read error detected by a channel circuit in... Agent: Greer, Burns & Crain

20070041117 - Method and systems for a highly error tolerant tape format: Described herein are media drives for writing information to a media (e.g., a tape media), systems for storing information on a storage medium, and methods of writing information to a media. The devices, systems and methods described herein are error tolerant in that they may permit only a limited number... Agent: Morrison & Foerster LLP

20070041119 - Head for thermally assisted magnetic recording device and thermally assisted magnetic recording device: To reduce background light generated in a circumference of a scatterer in a head for a thermally assisted magnetic recording device using a scatterer having conductivity as an optical near-field generating element, a coil for generating a magnetic field is placed on a bottom portion of a slider, and an... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070041120 - Data save processing method for disk storage device and disk storage system: A disk storage device has a plurality of disk faces and a plurality of heads. The disk storage device protects the data on the disk face for a head before the defect of the head occurs. For each head, a table for accumulating the error generation count generated by the... Agent: Greer, Burns & Crain

20070041121 - Correlation servo for positioning recording head: Tape heads and controllers for controlling such heads in a tape drive are described. A controller may determine a first parameter corresponding to the similarity between data read by a first pair of read elements of a head, a second parameter corresponding to the similarity between data read by another... Agent: Morrison & Foerster LLP

20070041122 - Communication method and system: Abstract: The invention relates to a method of communicating between an application block and a drive block in a low power storage device. This method consists of executable instructions corresponding to the steps of sending from the application block, by means of an interface, specific commands giving the drive block... Agent: Philips Intellectual Property & Standards

20070041123 - Method for making noble metal conductive leads for suspension assemblies: A method of manufacturing an integrated lead head suspension flexure of the type having conductors on a spring metal layer capable of being etched by a first etching process. The method includes forming a patterned layer having gaps one or more flying lead regions of dielectric material on a major... Agent: Faegre & Benson LLP Patent Docketing

20070041124 - Narrow track cpp head with bias cancellation: The problem of increased edge sensitivity associated with the reduction of the spacing between bias magnets in a CPP head has been solved by limiting the width of the bias cancellation layer and by adding an extra layer of insulation to ensure that current through the device flows only through... Agent: Saile Ackerman LLC

20070041125 - Magnetic tunnel junction structure having an oxidized buffer layer and method of fabricating the same: There are provided a magnetic tunnel junction structure and a method of fabricating the same. The magnetic tunnel junction structure includes a lower electrode, a lower magnetic layer pattern and a tunnel layer pattern, which are sequentially formed on the lower electrode. The magnetic tunnel junction structure further includes an... Agent: Marger Johnson & Mccollom, P.C.

20070041126 - Magnetic head and method of manufacturing same, and magnetic head substructure: A method of manufacturing magnetic heads comprises the steps of: fabricating a magnetic head substructure by forming components of a plurality of magnetic heads on a single substrate so that a plurality of rows of pre-head portions that will be the respective magnetic heads later are aligned in the substructure;... Agent: Oliff & Berridge, PLC

20070041127 - Perpendicular magnetic recording head having return path layer and gap adjusting layer: A perpendicular magnetic recording head includes a main pole layer and a return path layer that are exposed from a medium-facing surface of the recording head facing a recording medium and that face each other with a predetermined gap therebetween at the medium-facing surface. A coil layer applies a recording... Agent: Brinks Hofer Gilson & Lione

20070041128 - Head cleaning apparatus and magnetic recording and reproducing device having the same: A head cleaning apparatus and a magnetic recording and reproducing device having the same are disclosed. The head cleaning apparatus includes a cleaning member for cleaning a head, a lever member for supporting and fixing the cleaning member, and for operating to bring the cleaning member into contact with the... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070041129 - Magnetic disk apparatus: A head support mechanism includes a head to read/write information, and an actuator for moving the head. Flanges are provided on opposite sides of a load beam of the head support mechanism, and at least one recessed portion is provided on the load beam. A thickness of the load beam... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070041130 - Head suspension: A head suspension for a hard disk drive has an arm to be attached to a carriage of the hard disk drive and turned around a spindle, a load beam including a rigid part and a resilient part, to apply load onto a head that is arranged at a tip... Agent: Jordan And Hamburg LLP

20070041131 - Method for determining the position of a slider in an electromechanical valve: A method for determining the position of a slider in an electromechanical valve includes the steps of providing the slider with a coil and applying a voltage U to the coil. The current flowing through the coil is then measured and compared to a reference current value to determine the... Agent: Macmillan, Sobanski & Todd, LLC

20070041132 - Thin-film magnetic head having element portion: A thin-film magnetic head is provided. The thin-ffilm magnetic head includes an element portion including an antiferromagnetic layer, a pinned magnetic layer, an insulating barrier layer, and a free magnetic layer laminated on a substrate. A protective layer that protects an end face of the element portion where the end... Agent: Brinks Hofer Gilson & Lione

20070035866 - Decoder with energization control circuit: A multistage decoder circuit has an error reduction stage that includes an adaptation circuit. The adaptation circuit provides adaptable error reduction as a function of bit error rate. The multistage decoder circuit has an energization control circuit that couples to the adaptation circuit. The energization control circuit controls an energization... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070035867 - Itr data reproducing apparatus, recording/reproducing system, and interpolation filter: An ITR (Interpolated Timing Recovery) data reproducing apparatus capable of acquiring an excellent reproduction output waveform with less distortion and updating sampling timing at high speed with a simple configuration is provided. Each sampling period (Ts) of a desired interpolation function f(t) is split into a plurality of periods, linear... Agent: Rader Fishman & Grauer PLLC

20070035868 - Apparatus, method and program product for a multi-controller and multi-actuator storage device: A data storage device, method and program product for high data transfer and access rate is disclosed. The data storage device includes a housing wherein at least one data storage disk is rotatably mounted. The housing further includes at least two actuator arm assemblies, each actuator arm assembly carrying a... Agent: Silvy Anna Murphy

20070035869 - Variable mobile media storage system: Disclosed is a method and apparatus for a variable media tape based storage system for storing, retrieving, and communicating data. The system includes at least one media element having a compatible relationship with one of a plurality of drives for storing and receiving data. The at least one media element... Agent: Wall Marjama & Bilinski

20070035870 - Method and system for optimized servo track writing motor current profile to reduce written-in high-frequency repeatable runout track mis-registration: A system for reducing written-in high-frequency repeatable run-out track mis-registration occurring during writing of servo information onto a hard disk implementable in a hard disk drive is described. The system includes an excitation frequency adjuster enabled to adjust excitation frequencies away from mechanical modes to provide desired rotation speed of... Agent: Wagner, Murabito & Hao LLP

20070035871 - Media cartridge autoloader: A media cartridge autoloader is disclosed that includes a rotation transmission path forming device. The rotation transmission path forming device includes a drive shaft unit, a drive shaft unit shifting mechanism, and a magazine drive motor module. A mechanism that rotates a turntable of a media cartridge picker is also... Agent: Ladas & Parry LLP

20070035873 - Disk-drive enclosure having drives in a herringbone pattern to improve airflow and method: A system and method for an improved multiple hard-disk-drive data-storage enclosure. Some embodiments position drives in counter-rotating pairs, each simultaneously accessing half the data, such that seek-caused actuator rotational-acceleration vibration cause simultaneous canceling rotational torque. Some embodiments position the edge of a first drive (or drive pair) at an angle... Agent: Lemaire Patent Law Firm, P.l.l.c.

20070035874 - Disk-drive enclosure having laterally offset parallel drives to reduce vibration and method: A system and method for an improved multiple hard-disk-drive data-storage enclosure. Some embodiments position drives in counter-rotating pairs, each simultaneously accessing half the data, such that seek-caused actuator rotational-acceleration vibration cause simultaneous canceling rotational torque. Some embodiments position the edge of a first drive (or drive pair) at an angle... Agent: Lemaire Patent Law Firm, P.l.l.c.

20070035875 - Disk-drive enclosure having pair-wise counter-rotating drives to reduce vibration and method: A system and method for an improved multiple hard-disk-drive data-storage enclosure. Some embodiments position drives in counter-rotating pairs, each simultaneously accessing half the data, such that seek-caused actuator rotational-acceleration vibration cause simultaneous canceling rotational torque. Some embodiments position the edge of a first drive (or drive pair) at an angle... Agent: Lemaire Patent Law Firm, P.l.l.c.

20070035872 - Sealing method for magnetic disk drive: A magnetic disk drive is to be provided which not only can promote the reduction of size thereof but also maintain a state in which outside air does not directly enter the interior of a case. In one embodiment, a magnetic disk drive comprises a base member, the base member... Agent: Townsend And Townsend And Crew LLP

20070035876 - Disc clamp for a disc drive: The invention relates to a disc clamp for mounting an information storage disc to a rotating hub of a spindle motor assembly, and a disc drive spindle hub assembly comprising said disc clamp. The disc clamp comprises an annular body portion, an inner centering portion defining a central aperture, and... Agent: Norman H. Zivin Cooper & Dunham LLP

20070035877 - Thin-film magnetic head with closure and magnetic recording apparatus: A thin-film magnetic head that shows stable read and/or write performances, maintaining the reliability over time by suppressing the wear of the head sufficiently, is provided. The head comprises: a substrate having an element-formed surface and an opposed-to-medium surface; a magnetic head element; an overcoat layer formed on the element-formed... Agent: Buchanan, Ingersoll & Rooney PC

20070035878 - Perpendicular head with self-aligned notching trailing shield process: A perpendicular write head and a method of manufacturing the same is disclosed, the perpendicular write head for writing data onto tracks, the perpendicular write head having a main pole having notched trailing shield being self-aligned on the main pole for improved overwriting and adjacent track interference.... Agent: Maryam Imam, Esq. Law Offices Of Imam

20070035879 - Disk-drive system supporting massively parallel video streams and method: A system and method for an improved multiple hard-disk-drive data-storage enclosure. Some embodiments position drives in counter-rotating pairs, each simultaneously accessing half the data, such that seek-caused actuator rotational-acceleration vibration cause simultaneous canceling rotational torque. Some embodiments position the edge of a first drive (or drive pair) at an angle... Agent: Lemaire Patent Law Firm, P.l.l.c.

20070035880 - Disk-drive systems with a varying number of spares for different expected lifetimes and method: A system and method for an improved multiple hard-disk-drive data-storage enclosure. Some embodiments position drives in counter-rotating pairs, each simultaneously accessing half the data, such that seek-caused actuator rotational-acceleration vibration cause simultaneous canceling rotational torque. Some embodiments position the edge of a first drive (or drive pair) at an angle... Agent: Lemaire Patent Law Firm, P.l.l.c.

20070035881 - Method and apparatus for active control of spacing between a head and a storage medium: A slider having a slider body is provided. An electrical connection is coupled to the slider body. A first actuator is coupled to the electrical connection and adapted to displace a first portion of the slider body. Additionally, a second heater is coupled to the electrical connection and adapted to... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070035882 - Floating thin-film magnetic head having crown serving as medium-facing surface and method for producing thin-film magnetic head: A floating thing-film magnetic head and method of producing the same is provided. A floating thin-film magnetic head includes a slider that is floated from a surface of a rotating recording medium by airflow generated over the surface of the recording medium. A thin-film magnetic head element formed on an... Agent: Brinks Hofer Gilson & Lione

20070035883 - Methods and apparatus for communicating signals between portions of an apparatus in relative movement to one another: A data transmission system that includes a transmitter; a receiver; and a magnetically coupled rotary transformer having a first portion and a second portion in moveable relationship with one another. The transmitter is electrically and mechanically coupled to the first portion of the rotary transformer, and the receiver is electrically... Agent: Patrick W. Rasche (12553 - 1000)

20070035884 - Perpendicular magnetic recording head: A perpendicular magnetic recording head which moves in a track direction of a recording layer of a perpendicular magnetic recording medium to write information on the recording layer or read information from the recording layer. The perpendicular magnetic recording head includes: the perpendicular magnetic recording medium including a soft magnetic... Agent: Sughrue Mion, PLLC

20070035885 - Perpendicular magnetic recording head and method of manufacturing the same: A perpendicular magnetic head for recording a perpendicular magnetic recording medium is provided. The perpendicular magnetic head includes a main pole; a return pole, which has at least an end separated from the main pole; and a plurality of shields that surround the main pole and have a split structure.... Agent: Sughrue Mion, PLLC

20070035886 - Magneto-resistive element, tunneling magneto-resistive element and method for manufacturing the same: A tunneling magneto-resistive element includes: a tunneling magneto-resistive film including an antiferromagnetic layer, a pinned layer, a barrier layer and a free layer; and a lower magnetic shielding film disposed below the tunneling magneto-resistive film with respect to a lamination direction. The barrier layer is constituted of magnesium oxide. The... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070035887 - Magnetoresistive sensor having a shape enhanced pinned layer: A magnetoresistive sensor having a pinned layer that extends beyond the stripe height defined by the free layer of the sensor. The extended pinned layer has a strong shape induced anisotropy that maintains pinning of the pinned layer moment. The extended portion of the pinned layer has sides beyond the... Agent: Zilka-kotab, PC

20070035889 - Spin valve magnetoresistive sensor in current perpendicular to plane scheme: A magnetoresistive read head includes a spin valve having at least one free layer spaced apart from at least one pinned layer by a spacer. The pinned layer is highly resistive and includes a Co100-xFex layer used in at least a part of the pinned layer. Optionally, this material may... Agent: Sughrue Mion, PLLC

20070035888 - Stabilizer for magnetoresistive head and method of manufacture: A reader of a current-perpendicular-to-plane magnetoresistive head includes a spin valve with sensor having a stabilizer adjacent thereto, to substantially avoid magnetization distribution at the edge of the sensor due to vortex effect and charge accumulation. At least one free layer is spaced apart from at least one pinned layer... Agent: Sughrue Mion, PLLC

20070035890 - Composed free layer for stabilizing magnetoresistive head having low magnetostriction: A magnetoresistive read head includes a spin valve having at least one free layer spaced apart from at least one pinned layer by a spacer. The free layer includes a thin CoFeOx lamination layer in the CoFe, and an optional Cu layer. The amount of oxygen is below 10% of... Agent: Sughrue Mion, PLLC

20070035891 - Method of manufacturing a magnetoresistive sensor having a shape enhanced pinned layer: A magnetoresistive sensor having a pinned layer that extends beyond the stripe height defined by the free layer of the sensor. The extended pinned layer has a strong shape induced anisotropy that maintains pinning of the pinned layer moment. The extended portion of the pinned layer has sides beyond the... Agent: Zilka-kotab, PC

20070035892 - Magnetic transduction sensor device, manufacturing process and detection process therefrom: Magnetic pressure sensor device, of the type comprising at least one magnetic layer (11) able to vary a magnetisation associated thereto in response to a pressure (P) exerted thereon. Said device (20; 30; 40; 50) comprises a plurality of layers (11, 12, 13, 14, 15, 16, 17) arranged in a... Agent: Nixon & Vanderhye, PC

20070035893 - Magnetoresistive sensor having an anisotropic hard bias without a buffer layer: A magnetoresistive sensor having magnetically anisotropic bias layers for biasing the free layer of the sensor. The hard magnetic layer is formed over a seed layer structure that has been treated to induce the magnetic anisotropy in the hard bias layers. The treated seed layers also allow the hard bias... Agent: Zilka-kotab, PC

20070035894 - Magnetoresistive sensor having an anisotropic pinned layer for pinning improvement: A magnetoresistive sensor having a magnetically anisotropic pinned layer structure. The pinned layer structure is formed over a seed layer having a surface that has been treated to texture the surface of the seed layer with an anisotropic roughness. This anisotropic roughness induces the magnetic anisotropy in the pinned layers.... Agent: Zilka-kotab, PC

20070030584 - Compressed domain commercial detect/skip: An apparatus comprising an encoder circuit, a recordable medium, and a decoder circuit. The encoder circuit may be configured to generate (i) a first recordable signal and (ii) a second recordable signal in response to an input bitstream having program information and commercial information. The recordable medium may be configured... Agent: Lsi Logic Corporation

20070030585 - Audio systems and methods: An audio system may comprise a transceiver configured to receive, detect, and transmit audio signals on a first channel frequency and to receive and detect audio signals on at least one additional channel frequency. The at least one additional channel frequency may include a second channel frequency. The system may... Agent: Honeywell International Inc. Patent Services Group Ab2

20070030586 - Apparatus and method for hard disk protection: A hard-disk protection apparatus is coupled to a hard disk applied to an electronic apparatus. The hard-disk protection apparatus includes a sensor and a circuit breaking device. The sensor is for sensing an acceleration of the hard disk as the hard disk is moved by an external force. The circuit... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20070030587 - Fall detection device: A fall detection device is provided, which accomplishes a fall judgment on acceleration by a simple calculation and improves uniformity of effective threshold value for the acceleration judgment as to a direction of an applied acceleration vector. The fall detection device produces a fall detection signal, when an absolute value... Agent: Sughrue Mion, PLLC

20070030588 - Calibration of reader/writer offset in hard disk drive using shingled recording: Embodiments of the invention provide a disk drive that is capable of determining the offset of a magnetic head position through simple and easy processing in a case where the shingle write method is adopted, and that is capable of increasing the accuracy. In one embodiment, a disk drive comprises:... Agent: Townsend And Townsend And Crew LLP

20070030589 - Media cartridge autoloader: A media cartridge autoloader including first and second media cartridge transport magazines is disclosed. A magazine drive includes a drive shaft unit, a drive shaft unit shifting mechanism, and a magazine drive motor module. A mechanism that rotates a turntable of a media cartridge picker is also used to move... Agent: Ladas & Parry LLP

20070030590 - Sliding module and its axle structure: A sliding module comprises a sliding member having a transversal plate disposed transversally and coupled vertically at a substantially middle position of two sliding plates, and the transversal plate includes a rectangular transversal groove, and the transversal groove includes a through hole disposed at an external side of the transversal... Agent: John G. Chupa Offices Of John Cupa & Associates, P.C.

20070030591 - Fluid dynamic bearing system: The bearing system according to the invention comprises a sleeve-shaped first bearing disk having a bore concentric to a rotational axis, a cylindrical shaft disposed in the bore and connected to the first bearing disk, the shaft having a second bearing disk disposed at one end that is arranged at... Agent: Norman H. Zivin Cooper & Dunham LLP

20070030592 - Magnetic head, fabrication process of magnetic head, and magnetic disk storage apparatus mounting magnetic head: This invention provides a high-output magnetic head with a high yield, which is capable of minimizing sense current leak or noise caused by a shift of the magnetic wall of an upper shield layer. In one embodiment, the magnetic head is fabricated so that the height of the upper surface... Agent: Townsend And Townsend And Crew LLP

20070030593 - Magnetic disk drive with heater to control flying height and manufacturing method thereof: Embodiment of the invention improve the productivity of a magnetic disk drive that controls the flying height of a magnetic head by use of a heater. According to an embodiment, in a method for manufacturing a magnetic disk drive that writes/reads information to/from a magnetic disk medium by use of... Agent: Townsend And Townsend And Crew LLP

20070030594 - Tape recording head with overlapping read transducers: A tape recording head is provided comprising a substrate including a first plane deposited on the substrate comprising a linear array of read transducers spaced apart in a direction substantially perpendicular to the direction of linear motion of a recording tape relative to the magnetic head, and a second plane... Agent: International Business Machines Corporation

20070030595 - Abnormal state determination method and apparatus: In an abnormal state determination method, the state of a first contact that is set to be open normally and closed in an operation is detected. The state of a second contact that is set to be closed normally and open in the operation complementarily to the first contact is... Agent: Blakely Sokoloff Taylor & Zafman

20070030596 - Abnormal state determination method and apparatus: In an abnormal state determination method, a detection target that can at least take two states is monitored. Abnormality is determined when one state of the detection target is detected, and then, another state of the detection target is detected within a preset time. An abnormal state determination apparatus is... Agent: Blakely Sokoloff Taylor & Zafman

20070030597 - Magnetic head slider to prevent fall forward and magnetic disk drive: When the flying height of a magnetic head slider lowers, there arises the problem that the magnetic head slider assumes a forwardly falling attitude and a front edge portion of a leading end of the magnetic head slider comes into contact with a magnetic disk surface, causing damage to the... Agent: Townsend And Townsend And Crew LLP

20070030598 - Air bearing surface of thin-film magnetic head slider and method of processing the same: A method of processing an air bearing surface of a thin-film magnetic head slider is provided. A first silicon film, a first carbon film, a second silicon film, and a second carbon film are laminated in that order on a face of a thin-film magnetic head slider facing a medium.... Agent: Brinks Hofer Gilson & Lione

20070030599 - Base plate, hard disk drive with the base plate, and method for attaching head stack assembly on the base plate: A base plate includes a head stack assembly installation portion on which a head stack assembly is rotatably installed, and a step portion restricting rotation of a shipping comb by hooking the shipping comb when the head stack assembly installed on the head stack assembly installation portion is rotated with... Agent: Staas & Halsey LLP

20070030600 - Spring member for acceleration sensor, acceleration sensor and magnetic disk drive apparatus: A spring member for an acceleration sensor for detecting acceleration in a direction of a Z-axis that is perpendicular to an X-Y plane includes a movable section having a plane plate shape, for fixing a magnetic field generation member with weight of the acceleration sensor, and a single support arm... Agent: Buchanan, Ingersoll & Rooney PC

20070030601 - Microactuator, head gimbal assembly and hard disk drive using the same, and manufacturing method thereof: A microactuator includes: a stage on which a positioning object is to be mounted; a frame to which the stage is fixed integrally; a piezoelectric device disposed on the frame, which deforms in an expanding or contracting manner based on a driving signal applied; and a drive which applies a... Agent: Greenblum & Bernstein, P.L.C

20070030602 - Thin film magnetic head and method of manufacturing the same: The present invention provides a method of manufacturing a thin film magnetic head, capable of easily manufacturing a thin film magnetic head with high precision, in which a magnetic shield layer is disposed so as to surround a magnetic pole layer from three directions of a medium outflow direction and... Agent: Kenyon & Kenyon LLP

20070030603 - Stabilizer for magnetoresistive head in current perpendicular to plane mode and method of manufacture: A reader of a magnetoresistive head includes a spin valve with sensor having a stabilizing hard bias and side shield at the side of the sensor, to substantially reduce the undesired flux from adjacent bits and tracks. At least one free layer is spaced apart from at least one pinned... Agent: Sughrue Mion, PLLC

20070030604 - Magnetoresistance effect elements, magnetic heads and magnetic storage apparatus: The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070030605 - Voice recorder apparatus: A voice recorder for use in book pages, such as in a scrapbook, includes a casing with front and back panels such that a covering, such as paper or fabric, covers at least the front side. A recessed playback button is defined within the front side. A recessed record button... Agent: Stoel Rives LLP - Slc

20070025003 - Utilizing track identification fields for timing recovery: An apparatus comprises a data storage medium having a plurality of servo sectors and a plurality of data sectors, wherein each of the servo sectors includes a phase locked loop field and a track identification field, a controller for controlling the position of a recording head with respect to the... Agent: Pietragallo, Bosick & Gordon LLP

20070025005 - Method of protection of information of depopulated magnetic disk apparatus: A method of protection of information of a depopulated magnetic disk apparatus having at least one pair of a magnetic head and a magnetic disk including a pair of a magnetic head and a magnetic disk found by tests of the magnetic disk apparatus before shipment to have characteristics of... Agent: Patrick G. Burns Greer, Burns & Crain, Ltd.

20070025006 - Sector format setting processing method for disk storage device and disk storage device: A disk storage device has a plurality of disk faces and a plurality of heads, in which a different S/N is improved for each head. The disk face is formatted in a sector format with which the read/write characteristics become the optimum using the fact that the read/write characteristics differ... Agent: Greer, Burns & Crain

20070025004 - Timing analysis of read back signals in magnetic recording devices: Analysis of a read back signal in a magnetic recording device is disclosed. The read back signal is converted to a digital read back signal, and a low frequency component of the digital read back signal is restored. A sample clock is recovered from the restored digital read back signal,... Agent: Van Pelt, Yi & James LLP

20070025007 - Method of writing pattern on media and data storage device: Embodiments of the invention reduce the effect of the rotational jitters to write a pattern in more accurate timing in self-writing a pattern on a magnetic disk. In an embodiment of the invention, respective patterns in N sectors are first written on an inner circumferential side track as reference patterns... Agent: Townsend And Townsend And Crew LLP

20070025009 - Magnetic recorder: A magnetic recorder for performing at least one of magnetic recording and magnetic reproduction on a running magnetic tape, comprising: a magnetic head mounted so as to slidably abut on the magnetic tape; a subject portion made of the same material as that of the magnetic head and provided so... Agent: Sughrue Mion, PLLC

20070025008 - Tape drive error management: In one embodiment, a method of recording an error in a tape drive, comprises receiving, in a tape library controller, an internal identifier associated with a tape cartridge; recording, in a memory medium associated with the tape library controller, the internal identifier; associating, in the memory medium, the internal identifier... Agent: Hewlett Packard Company

20070025010 - Method of and apparatus for forming servo bursts on a magnetic storage disk: A method of and apparatus for forming servo bursts on a magnetic storage disk are disclosed. The method comprises forming at least one phase-encoded servo burst to a surface of the disk using a printing-process step that writes all parts of the phase-encoded servo burst substantially simultaneously. The phase encoded... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070025011 - Servo control method, apparatus using the same, and recording medium having program for executing the method: A sequential seek method for a hard disc drive, a hard disc drive using the same, and a computer readable recording medium storing a program to execute the same. The method includes calculating a seek length by comparing a cylinder number of a current track with a cylinder number of... Agent: Staas & Halsey LLP

20070025012 - Tape drive having improved tape path and associated methods: In one example of one aspect of the invention, a tape drive is provided. The tape drive includes a housing configured to receive a storage cartridge, the housing having a take-up reel and a plurality of guide elements disposed therein. The guide elements are configured to guide storage tape from... Agent: Morrison & Foerster LLP

20070025014 - Anti-shock device for vehicular hard disk drive and assembly method thereof: An anti-shock device for a vehicular HDD (hard disk drive) and an assembly method thereof are provided. The device includes: the HDD being a storage medium; a HDD bracket coupled and fixed at its bottom surface with the HDD; a plurality of silicone dampers being damping members for damping an... Agent: Ipla P.A.

20070025013 - Shielded enclosure of a disc drive for reducing penetration and influence of stray fields: The present invention includes a data storage system. The data storage system includes an enclosure and at least one perpendicular recording device positioned within the enclosure and in communication with a recording medium. The recording medium includes a layer of magnetic material that has a permeability that is substantially similar... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070025015 - Magnetic disc apparatus: A magnetic disc apparatus has a ramp holding the magnetic head in a position apart from the magnetic disc and a filter case holding a filter in the state of being bent in such a manner that the filter surrounds the ramp together with the magnetic disc. The filter removes... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070025016 - Disk spacer, hard disk drive with the disk spacer, and disk balancing method using the disk spacer: A disk spacer interposed between a plurality of disks that are rotatably installed on a spindle motor and has a ring shape to maintain an interval between the disks. The center of an inner circle defined by an inner circumferential surface of the disk spacer is not congruous with the... Agent: Staas & Halsey LLP

20070025017 - Disk device: The invention provides a disk device used both horizontally and vertically, having a fall-proof mechanism of a disk medium provided at low cost, and capable of reducing noise caused by the fall-proof mechanism. The disk device comprises cuts 123 for forming tongued portions 122, engagement portions 124 formed to portions... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070025018 - Perpendicular magnetic recording head comprising gap shield: A perpendicular magnetic recording head includes: a main pole; a return pole spaced a predetermined gap from the main pole; an induction coil inducing a magnetic field on the main pole; and two or more gap shields, wherein the two or more gap shields are formed in the gap between... Agent: Sughrue Mion, PLLC

20070025019 - Cartridge case and disc cartridge: A cartridge case is constructed so as to be capable of enclosing an information medium inside a cartridge main body that includes a first shell and a second shell and is formed by placing the first shell and the second shell on one another. Cylindrical convex portions, each of which... Agent: Greenblum & Bernstein, P.L.C

20070025020 - Head gimbal assembly with particle filter device, and disk drive unit with the same: A HGA includes a slider, a suspension to load the slider, and a particle filter device to fix in leading side of the slider. The particle filter device is made of power material or porous material. The HGA further comprise a micro-actuator to connect with the slider. Because the particle... Agent: Nixon & Vanderhye, PC

20070025021 - Thin film magnetic head and manufacturing the same: The invention provides a thin film magnetic head which is capable of improving the reliability of a head by preventing an element structure from being contacted with a recording medium during a recording and a reproducing operations and capable of coping with a high recording density while favorably maintaining a... Agent: Brinks Hofer Gilson & Lione

20070025022 - Magnetic disk slider having improved inclination margins in a rolling direction: A magnetic head slider suitable for a disk drive measuring 1.8 inches or less in disk size incorporates preventive measures against the decreases in lifting force that occur in small sliders with a slider width of 0.8 mm or less. The present invention improves the inclination margins of the flying... Agent: Hitachi Global Storage Technologies, Inc.

20070025023 - Magnetic head slider with suppressed flying height reduction and magnetic hard disk drive: Embodiments of the invention provide Femto and below form factor magnetic head slider designs both capable of minimizing reduction of its flying height at high altitude and lower flying height sensitivity on manufacturing process tolerance. In one embodiment, the air bearing surface of a magnetic head slider includes a plurality... Agent: Townsend And Townsend And Crew LLP

20070025024 - Magnetic disk device: In a magnetic disk device, a magnetic circuit drives an actuator carrying a magnetic head, so that the magnetic head is moved to a target track on a surface of a magnetic disk. A base has a threaded-hole part to which the magnetic circuit is fastened with a screw. A... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070025025 - Micro-actuator, head gimbal assembly, and disk drive unit with the same: A micro-actuator of the invention includes a support base having two actuator side arms and a rotatable bottom plate positioned between the actuator side arms; wherein at least one of the actuator side arms having a back-turned extension in a first end thereof; a pair of connection elements that connects... Agent: Nixon & Vanderhye, PC

20070025026 - Thin shield structure for reduced protrusion in a magnetoresistive head: A magnetic data recording head having reduced thermally induced shield (pole tip) protrusion. The head includes a magnetoresistive sensor sandwiched between first and second shield. The shields have a substantially reduced thickness. The distance between the shields defines a gap (G) and the shields each have a thickness (ST) such... Agent: Zilka-kotab, PC

20070025027 - Magnetic tunnel junction sensor: Methods and apparatus are provided for sensing physical parameters. The apparatus comprises a magnetic tunnel junction (MTJ) and a magnetic field source whose magnetic field overlaps the MTJ and whose proximity to the MTJ varies in response to an input to the sensor. The MTJ comprises first and second magnetic... Agent: Ingrassia, Fisher & Lorenz, P.C.

20070025029 - Magnetoresistive device and nonvolatile magnetic memory equipped with the same: A fast and very low-power-consuming nonvolatile memory. A nonvolatile magnetic memory includes a high-output tunnel magnetoresistive device, in which spin-transfer torque is used for writing. A tunnel magnetoresistive device has a structure such that a ferromagnetic film of a body-centered cubic structure containing Co, Fe, and B, a MgO insulator... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070025028 - Tunnel junction sensor with magnetic cladding: Methods and apparatus are provided for sensing physical parameters. The apparatus comprises a magnetic tunnel junction (MTJ) and a magnetic field source whose magnetic field overlaps the MTJ and whose proximity to the MTJ varies in response to an input to the sensor. A magnetic shield is provided at least... Agent: Ingrassia, Fisher & Lorenz, P.C.