|Dynamic magnetic information storage or retrieval patents - Monitor Patents|
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Dynamic magnetic information storage or retrieval January recently filed with US Patent Office 01/09Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application. 01/29/2009 > patent applications in patent subcategories.
20090027795 - Secure module recorder system and method: Embodiments of a secure module recorder system and method for securing recording and storing of information is provided. The system may include at least one secure module and a docking station having at least one receptacle for holding one of the secure modules. The secure module may include a tamper-resistant... Agent: Duckor Spradling Metzger & Wynne A Law Corporation
20090027796 - Information recording device and control method therefor: According to one embodiment, an information recording device comprises, when writing asynchronous data not recorded in a disk-like recording medium among data recorded in a non-volatile memory by a control module, a setting module is configured to place priority order of writing the asynchronous data to the disk-like recording medium... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090027797 - Data storage and manipulation: c
20090027799 - Disk drive refreshing zones in segments to sustain target throughput of host commands: A disk drive is disclosed including a disk comprising a plurality of refresh zones, and a head actuated over the disk. The disk drive further comprises control circuitry for receiving access commands from a host. The control circuitry refreshes a refresh zone in a plurality of segments with an interval... Agent: Western Digital Technologies, Inc. Attn: Lesley Ning
20090027798 - Impact protection for a retractable control object: Various embodiments of the present invention are generally directed to protecting a device from damage due to an impact event at the conclusion of a free fall condition through the use of a biasing signal that maintains a retention force until the impact event is completed.... Agent: Fellers, Snider, Blankenship, Balley & Tippens
20090027800 - Storage apparatus, control method and control unit: According to an aspect of an embodiment, a storage apparatus includes a judgment unit which judges the clearance between a head and a recording medium. A mode switcher switches from a regular write mode in which data is written on the medium to a write verification mode in which error... Agent: Greer, Burns & Crain
20090027801 - Differential timing based servo pattern for magnetic-based storage media: A magnetic storage media includes a magnetic first-pole polarity initialized servo track segment and a magnetic second-pole polarity differential timing based servo pattern recorded on the magnetic first-pole polarity initialized servo track segment. The magnetic second-pole polarity differential timing based servo pattern represents magnetic encoded servo position information for facilitating... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37
20090027802 - Magnetic recording apparatus: Provided is a magnetic recording apparatus including a magnetic recording medium having a magnetic recording position patterned of a magnetic substance and a read head reading information from the magnetic recording medium, wherein the magnetic recording medium includes: a data area having the magnetic recording position patterned including a plurality... Agent: Sughrue Mion, PLLC
20090027803 - High areal density tape head: A tape head designed for transducing data on a magnetic recording tape that is subject to tape dimensional changes. The tape head includes two or more arrays of transducer elements having different transducer spacing distances corresponding to different track spacing distances to be transduced. One of the transducer arrays may... Agent: Walter W. Duft
20090027804 - Cartridge carrying apparatus and cartridge carrying method: To provide a magnetic tape loader with which unconsidered slippage does not occur while a cartridge is inserted/ejected and carried, whose configuration is simple, and capable of being produced at a low cost. While a projection on an endless belt wrapped around pulleys is engaged with a notch section formed... Agent: Nec Corporation Of America
20090027805 - Method and system for measuring spacing in a perpendicular magnetic recording: PMR spacing is measured by writing a pattern on a magnetic storage layer in non-return-to-zero notation, reading the pattern from the magnetic storage layer, analyzing a first harmonic component of the pattern that has a first amplitude, analyzing a second harmonic component of the pattern that has a second amplitude,... Agent: Procopio, Cory, Hargreaves & Savitch LLP
20090027806 - Cleaning system for tape head and tape drive system implementing same: A tape drive system according to one embodiment includes a tape head; a guide mechanism for passing a magnetic recording tape over the head; and a cleaning device for cleaning the head, wherein, while the tape is adjacent the head, a relative spacing between the tape and the head is... Agent: Zilka-kotab, PC- Ibm
20090027807 - Head gimbal assembly having balanced weight, disk drive unit with the same and manufacturing method thereof: A HGA includes a load beam having a dimple formed thereon; a flexure including a suspension tongue and a support plate connected with the suspension tongue; and a slider having a leading edge and trailing edge opposite to the leading edge. The slider is mounted on the flexure such that... Agent: Nixon & Vanderhye, PC
20090027808 - Performance test method of head gimbal assembly with precise positioning micro-actuator: A method of testing a performance of a HGA including a magnetic head and a micro-actuator for precisely positioning the magnetic head with respect to a magnetic medium is disclosed. The key of the method is to obtain three track center values under conditions of no driving the micro-actuator, driving... Agent: Nixon & Vanderhye, PC
20090027809 - Thin-film magnetic head comprising shield/magnetic-pole layer having surface without right nor sharp angle: Provided is a thin-film magnetic head in which the concentration of magnetic flux in the shield layer and the magnetic pole layer is suppressed. The thin-film magnetic head comprises a plurality of magnetic layers that have front surfaces reaching a head end surface on the ABS side. Further in this... Agent: Oliff & Berridge, PLC
20090027812 - Magnetic signal reproduction system and magnetic signal reproduction method: The magnetic signal reproduction system comprises a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support and a reproduction head, wherein a number of protrusions equal to or greater than 10 nm in height on the magnetic layer surface, as measured... Agent: Sughrue Mion, PLLC
20090027813 - Current-perpendicular-to-the-plane (cpp) magnetoresistive sensor with cofege ferromagnetic layers: A current-perpendicular-to-the-plane spin-valve (CPP-SV) magnetoresistive sensor has a ferromagnetic alloy comprising Co, Fe and Ge in the sensor's free layer and/or pinned layer. The sensor may be a simple pinned structure, in which case the pinned layer may be formed of the CoFeGe ferromagnetic alloy. Alternatively, the sensor may have... Agent: Thomas R. Berthold
20090027810 - High performance mtj element for stt-ram and method for making the same: We describe the structure and method of forming a STT-MTJ MRAM cell that utilizes transfer of spin angular momentum as a mechanism for changing the magnetic moment direction of a free layer. The device includes an IrMn pinning layer, a SyAP pinned layer, a naturally oxidized, crystalline MgO tunneling barrier... Agent: Saile Ackerman LLC
20090027811 - Spin transfer mram device with reduced coefficient of mtj resistance variation: We describe the manufacturing process for and structure of a CPP MTJ MRAM unit cell that utilizes transfer of spin angular momentum as a mechanism for changing the magnetic moment direction of a free layer. The cell is formed of a vertically or horizontally series connected sequence of N sub-cells,... Agent: Saile Ackerman LLC01/22/2009 > patent applications in patent subcategories.
20090021852 - Apparatus, signal-processing circuit and device for magnetic recording system: To effectively suppress a signal in a low frequency region in which the medium noise and the signal distortion are concentrated, and in order to effectively utilize a detected component of the reproduced signal in the low frequency region, a target of partial response equalization to the perpendicularly recorded/reproduced signal... Agent: Stanley P. Fisher Reed Smith Hazel & Thomas LLP
20090021853 - Hard disk drive with divided data sectors and hard disk drive controller for controlling the same: A hard disk drive controller includes a buffer block temporarily storing recording data received from a host or reproduced data to be output to the host. A formatter outputs the recording data or the reproduced data and outputs a first control signal and a second control signal based on error... Agent: F. Chau & Associates, Llc
20090021854 - Method of servo writing for magnetic recording system, magnetic recording system: In a method of servo writing of a magnetic recording system and the magnetic recording system, the signal is recorded in a dummy area with a higher recording density than the burst signal. Also, the maximum bit length of the burst area is shortened as compared with the maximum bit... Agent: Stanley P. Fisher Reed Smith Hazel & Thomas LLP
20090021855 - Tape drive position control: In one embodiment a tape drive system comprises a reel adapted to engage a tape cartridge, the tape cartridge comprising a tape media having a servo code written along a length of the tape media, a tape head comprising at least one servo element to detect the servo code, a... Agent: Hewlett Packard Company
20090021856 - Differential timing based servo pattern for magnetic-based storage media: A magnetic storage media includes a magnetic first-pole polarity initialized servo track segment and a magnetic second-pole polarity differential timing based servo pattern recorded on the magnetic first-pole polarity initialized servo track segment. The magnetic second-pole polarity differential timing based servo pattern represents magnetic encoded servo position information for facilitating... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37
20090021857 - Rotational, shear mode, piezoelectric motor integrated into a collocated, rotational, shear mode, piezoelectric micro-actuated suspension, head or head/gimbal assembly for improved tracking in disk drives and disk drive equipment: A rotational, shear mode, piezoelectric motor is integrated with a suspension, head or head gimbal assembly (HGA) into a collocated, rotational, shear mode, piezoelectric micro-actuated suspension, head or head gimbal assembly (HGA) for use in disk drives and disk drive manufacturing equipment. When excited by a control voltage, the collocated,... Agent: John R. Shelor
20090021858 - Hard disk drive protection system based on adaptive thresholding: A method and apparatus for detecting unusual motions of an electronic device is disclosed. One example method includes measuring motion values of a device and comparing at least one motion value to a threshold to detect an unusual motion. The threshold is regularly adjusted based on at least a portion... Agent: Epson Research And Development Inc Intellectual Property Dept
20090021859 - Overmolded motor hub: Accurately formed critical tolerance fit components are provided for fluid dynamic bearing motors, including disc drive memory systems. In an aspect, critical tolerance fit components are molded to a metal insert and include a portion of a hub, a disc seating surface, and a disc locating surface. The insert includes... Agent: Wax Law Group
20090021860 - Production method for magnetic recording medium: A production method for a magnetic recording medium including forming thin films on a substrate using a sputtering method with a target, wherein the target on which an annular-shaped erosion area is formed during sputtering and a substrate holder on which a plurality of substrates are mounted are installed, opposed... Agent: Sughrue Mion, Pllc
20090021862 - Electric field read/write head, method of manufacturing the same, and information storage device comprising the electric field read/write head: An electric field read/write head, a method of manufacturing the same, and an information storage device including the electric field read/write head are provided. The electric field read/write head includes: a resistance region formed in a substrate which comprises an end surface facing a recording medium; a source and a... Agent: Sughrue Mion, Pllc
20090021861 - Magnetic write device including an encapsulated wire for assisted writing: A magnetic device includes a write element having a write element tip and is operable to generate a first field at the write element tip. A conductor is proximate the write element tip for carrying a current to generate a second field that augments the first field. An encapsulating layer... Agent: Kinney & Lange, P.a.
20090021863 - Perpendicular magnetic recording write head with trailing shield having throat height defined by electroplated nonmagnetic pad layer and method for making the head: A perpendicular magnetic recording write head has a magnetic write pole (WP) and a trailing shield (TS). The TS has a height (TS-HT) and a throat height (TS-TH) in a direction perpendicular to the ABS, with TS-TH being less than TS-HT. Nonmagnetic material is located between the TS and the... Agent: Thomas R. Berthold
20090021864 - Method and apparatus for dynamically adjusting the ramp speed for loading and/or unloading sliders in a hard disk drive: A Load-UnLoad (LUL) hard disk drive rotating its disks with ramp speeds when loading and/or unloading its sliders from its ramp based upon at least one atmospheric condition (AC) within the hard disk drive. Embodiments include load and unload ramp speeds that differ for a single AC, load ramp speeds... Agent: Gregory Smith & Associates
20090021865 - Minimizing slider vibration effects on a magnetic transducer: Minimizing slider vibration effects on a magnetic transducer coupled to a slider are described herein. In one embodiment, a method is described for minimizing slider vibration effects on a magnetic transducer coupled to the slider. A mass component of the slider is adjusted such that at least one pitch nodal... Agent: Hitachi C/o Wagner Blecher LLP
20090021866 - Magnetization state control device and magnetic information recording device: The magnetization state of a ferromagnetic material is controlled by applying a current pulse to it while externally applying a weak magnetic field to it. The magnetic state of a ferromagnetic material can be switched between a uniformly magnetized state and a multiple magnetic domain structure by controlling the direction... Agent: Nixon & Vanderhye, Pc
20090021867 - Magnetic disk drive for controlling flying height of magnetic head: A magnetic disk drive includes a magnetic head, a magnetic disk, an actuator for changing the position of the magnetic head with respect to the magnetic disk, a sensor for detecting vibration of the magnetic head; and a controller for detecting contact between the magnetic head and the magnetic disk... Agent: Greer, Burns & Crain
20090021868 - Perpendicular magnetic recording head with a laminated pole: A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferromagnetic coupling between adjacent magnetic layers. Writability is improved when... Agent: Saile Ackerman Llc
20090021869 - 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. In a magnetoresistance effect element wherein... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.
20090021870 - Magnetic head having cpp sensor with improved stabilization of the magnetization of the pinned magnetic layer: A magnetic head having a CPP read head sensor that includes a layered sensor stack including an antiferromagnetic (AFM) layer, a pinned magnetic layer, and a free magnetic layer. The pinned magnetic layer is comprised of a high, positive magnetostriction material and has a thickness t and a height (H),... Agent: Zilka-kotab, Pc- Hit01/15/2009 > patent applications in patent subcategories.
20090015958 - Magnetic recording device and magnetic recording apparatus: A magnetic recording device includes: a laminated body including: a first ferromagnetic layer with a magnetization substantially fixed in a first direction; a second ferromagnetic layer with a variable magnetization direction; a first nonmagnetic layer disposed between the first ferromagnetic layer and the second ferromagnetic layer; and a third ferromagnetic... Agent: Nixon & Vanderhye, PC
20090015959 - Thermally assisted magnetic recording system and thermally assisted magnetic recording: Heating power control is performed in thermally assisted magnetic recording using a patterned recording medium. Trial writing is performed by continuously changing a heating power intensity with respect to a pattern row of a trial writing area provided in plurality on the recording medium. From a reproduction signal thereof, a... Agent: Antonelli, Terry, Stout & Kraus, LLP
20090015960 - 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... Agent: Townsend And Townsend And Crew LLP
20090015961 - Disk drive installed in portable electronic device, and method of unloading a head when the electronic device falls: According to one embodiment, a disk drive (HDD) is installed in a portable electronic device. The HDD includes an actuator which supports a head such that the head is radially movable over a disk. A constant speed controller incorporated in the HDD executes constant speed control for unloading the head... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090015962 - Head-disc interface (hdi) modal response monitoring: Apparatus and method for head-disc interface (HDI) modal response monitoring. A sensing element disposed on a rigid actuator arm is mechanically impedance matched to a head-disc interface (HDI) supported by the actuator arm to resonate at a predetermined frequency corresponding to at least one disturbance associated with the HDI.... Agent: Fellers, Snider, Blankenship, Bailey & Tippens
20090015963 - Dual-deck cassette player having an integrated digital computer serial port: An audio cassette tape player with a computer serial port is disclosed. The player includes a housing having a front panel and a rear panel. An analog output port, analog input port and computer serial port are located on the rear panel. An analog input port located on the rear... Agent: Barlow, Josephs & Holmes, Ltd.
20090015964 - Internal disc drive filter assembly: An assembly comprises a housing and a rotatable data disc within the housing. The rotatable data disc creates a gas flow within the housing when the rotatable data disc rotates. The assembly further comprises a filter at a perimeter position of the rotatable data disc positioned to capture a portion... Agent: Shumaker & Sieffert, P.A.
20090015966 - Magnetic disk apparatus: There is disclosed a magnetic disk apparatus including a magnetic disk and a magnetic head for recording data onto the magnetic disk or reading data from the magnetic disk. The magnetic disk includes a retracting part for loading the magnetic head on a surface of the magnetic disk or unloading... Agent: Greer, Burns & Crain
20090015965 - Perpendicular magnetic recording head and method for manufacturing the same: A perpendicular magnetic recording head includes a main pole, a return yoke forming a magnetic path with the main pole, and a coil encompassing the main pole in a solenoid structure to allow the main pole to generate a magnetic field that records information on a recording medium is provided.... Agent: Sughrue Mion, PLLC
20090015967 - Perpendicular magnetic recording media and perpendicular magnetic recording apparatus: A perpendicular magnetic recording media is disclosed which employs inexpensive materials in the intermediate layer of the high-recording density media while exhibiting magnetic characteristics comparable or superior to those of media using Ru or Re. A perpendicular magnetic recording apparatus employing this perpendicular magnetic recording media also is disclosed. The... Agent: Rossi, Kimms & Mcdowell LLP.
20090015968 - Voice coil motor and disk drive unit with the same: A voice coil motor for a disk drive includes a permanent magnet, a voice coil adapted to move in an arc proximate to the permanent magnet, a top plate positioned above the voice coil, and a bottom plate positioned below the voice coil. The permanent magnet has two halves that... Agent: Nixon & Vanderhye, PC
20090015969 - Magnetic thin film, magnetoresistance effect device and magnetic device using the same: Magnetic thin film having high spin polarizability and a magnetoresistance effect device and a magnetic device using the same, provided with a substrate (2) and Co2MGa1-xAlx thin film (3) formed on the substrate (2), the Co2MGa1-xAlx thin film (3) has a L21 or B2 single phase structure, M of the... Agent: Westerman, Hattori, Daniels & Adrian, LLP
20090015970 - Magnetic head with protective films: A magnetic, head according to one embodiment includes a substrate; a sensor formed above the substrate; a second shield formed above the sensor and the substrate; a first insulation layer positioned between the substrate and the sensor; a second insulation layer positioned between the sensor and the second shield; and... Agent: Zilka-kotab, PC- Ibm
20090015971 - Coherent spin valve and related devices: Embodiments of the present invention are directed toward the field of spintronics, and in particular, systems and devices capable of performing spin coherent quantum logic operations. The inventive spin valve comprises two ferromagnetic electrode layers, and a non-magnetic conducting layer positioned therebetween. An external magnetic field B0 is applied in... Agent: Fliesler Meyer LLP
20090015972 - Low noise magnetic field sensor: The present invention relates to a magnetoresistive sensor comprising a first pinned-magnetization magnetic layer (410) and a second free-magnetization magnetic layer (430), called sensitive layer, separated by first separating layer (420) for magnetic uncoupling. The sensor further comprises a second pinned-magnetization magnetic layer (450), separated from said sensitive layer by... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.01/08/2009 > patent applications in patent subcategories.
20090009901 - Retry and re-read for write synchronization: A method of detecting a cycle slip in a data string read from a bit patterned media and adjusting the data string to compensate for the cycle slip is disclosed. A system including a writeable data storage medium and a compensator configured to adjust data read from the data storage... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.
20090009902 - Method for con-trolling a data storage system: A system comprises a data management system, a media transport unit with a plurality of bins, each bin having a bin specific capacity for storing storage media units, at least one data processing unit and at least one loader mechanism for selectively moving a media unit from its actual location... Agent: Shlesinger, Arkwright & Garvey LLP
20090009904 - Method for forming servo pattern and magnetic disk drive: Embodiments of the present invention provide a method of forming an initial servo-pattern for self servowrite, insusceptible to constraints of an output resolution of a driver circuit for driving an actuator, and a dynamic range. According to one embodiment, a cluster pattern made up of pattern blocks, each including a... Agent: Townsend And Townsend And Crew LLP
20090009903 - Method of increasing recording density of hard disc drive and controlling device thereof: Provided is a method of increasing recording density and a control apparatus for increasing the recording density. The method includes applying a recording current corresponding to a recording signal to a magnetic head of a hard disc drive (HDD), and limiting a current value being applied to the magnetic head... Agent: Sughrue Mion, PLLC
20090009905 - Image recording apparatus: An image recording apparatus includes two drums, where such a configuration is adopted that both an approaching or spacing direction of a first recording head section corresponding to a first drum of the drums and an approaching or spacing direction of a second recording head section provided corresponding to a... Agent: Frishauf, Holtz, Goodman & Chick, PC
20090009906 - Transducer assembly and data storage device including the transducer assembly: An apparatus includes a storage medium, a transducer positioned adjacent to the storage medium and along an axis, and first and second support members connected to the transducer at positions that are spaced apart in the direction of the axis.... Agent: Pietragallo Gordon Alfano Bosick & Raspanti, LLP
20090009907 - Laminated film for head applications: A laminated main pole layer is disclosed in which a non-AFC scheme is used to break the magnetic coupling between adjacent high moment layers and reduce remanence in a hard axis direction while maintaining a high magnetic moment and achieving low values for Hch, Hce, and Hk. An amorphous material... Agent: Saile Ackerman LLC
20090009908 - Magnetic rom information carrier with additional stabilizing layer: The invention relates to a read only magnetic information carrier (1b, 1c, 1d) comprising a substrate (2), an information layer (3) and a stabilizing layer (15a, 15b). The information layer (3) comprises a pattern of magnetic bits (4) of magnetic material wherein the pattern of magnetic bits (4) constitutes an... Agent: Nxp, B.v. Nxp Intellectual Property Department
20090009909 - Case member and cartridge: A cartridge includes a case member (500) and a shutter member (100). The case member (500) includes a upper case section (505) and a lowercase section (506). A step portion (507) is formed at a boundary (508) between the upper case section (505) and the lower case section (506). The... Agent: Snell & Wilmer L.L.P. (panasonic)
20090009910 - Method of aligning components for installation on a head suspension assembly: A head suspension for supporting a head slider over a storage media in a dynamic storage device is provided with a head suspension component having a spring metal layer, an electrically conductive layer and a dielectric layer interposed between the metal layer and the electrically conductive layer. A plurality of... Agent: Faegre & Benson LLP Patent Docketing
20090009911 - Suspension with locally strengthened gimbal: An apparatus with a head gimbal assembly designed to reduce movement and rotation of components of the head gimbal assembly structure is disclosed. One embodiment head gimbal assembly may comprise a flexure including a ramp limiter, a suspension assembly further comprising a suspension tongue, a slider further comprising a magnetic... Agent: Kenyon & Kenyon LLP
20090009912 - Printed circuit cable assembly for top down installation: A printed circuit cable assembly for top down installation in a disc drive or the like in which a printed circuit cable supporting electrical conductor paths has a body portion, a flex portion and an insertion tab connecting the body portion and flex portion. A PCC support member having a... Agent: Fellers, Snider, Blankenship, Bailey & Tippens, PC (seagate Technology LLC)
20090009913 - Magneto-resistance element, manufacturing method therefor, and magnetic head: A tunneling magneto-resistance element has a pinned magnetic layer, a free magnetic layer, a tunnel barrier layer interposed between the pinned magnetic layer and the free magnetic layer, an antiferromagnetic layer that pins a magnetization direction of the pinned magnetic layer, a lower shield layer under the antiferromagnetic layer and... Agent: Greer, Burns & Crain
20090009914 - Semiconductor device using locating and sign of the spin of electrons: A spin-valve structure is provided, illustrating the layer structure used for the magnetic tunnel junction, by a method comprising the steps of providing a substrate, growing a ferromagnetic layer on the substrate, growing a tunnel barrier layer on the ferromagnetic layer, providing a first non-magnetic metallic contact on the ferromagnetic... Agent: Browdy And Neimark, P.l.l.c. 624 Ninth Street, Nw
20090009915 - Film and method for producing nano-particles for magnetoresistive device: A method of generating a thin film for use in a spin valve of a magnetoresistive (MR) sensor having a nano-constricted spacer is provided. The bottom portion of the spin valve is deposited up to the pinned layer, a deposition chamber is provided, and the spacer layer is sputtered thereon.... Agent: Sughrue-26555001/01/2009 > patent applications in patent subcategories.
20090002859 - Data storage tape recertification: The invention is directed to techniques for erasing data storage tape for reuse. In an embodiment, an erase head module for erasing data storage tape comprises a set of erase gaps and one or more servo read elements. The set of erase gaps is configured to coincide with data bands... Agent: Eric D. Levinson Imation Corp.
20090002861 - Magnetic head test method and magnetic head tester: A magnetic head assembly having a mounting base in which a mounting hole having a protruded peripheral edge is formed is easily mounted on a head clamp table positioning the magnetic head assembly by fitting the mounting hole on a boss pin or a receiving hole of a tray, with... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.
20090002860 - Storage apparatus and control apparatus thereof, and head vibration measurement method: A storage apparatus capable of measuring the vibration of a head vibration having a high frequency includes: a gate generation section that generates a plurality of first gate signals indicating the timing at which the head reads out servo information having a waveform for measurement of a reproduction signal level... Agent: Greer, Burns & Crain
20090002862 - Feed-forward dc restoration in a perpendicular magnetic read channel: A method of feed-forward DC restoration in a perpendicular magnetic read channel is disclosed. The method generally includes the steps of (A) generating a feed-forward signal by performing a first detection on an input signal, wherein a DC component of the input signal was previously filtered out in the perpendicular... Agent: Christopher P Maiorana, PC Lsi Corporation
20090002864 - Memory controller for packet applications: A method and apparatus for accessing and storing data in a memory are disclosed. The system includes a memory controller coupled to a memory having locations characterized by banks and lines. The memory controller is configured for storing a data packet with data bursts in sequence in consecutive memory locations,... Agent: Patterson & Sheridan, LLP/ Lucent Technologies, Inc
20090002863 - System and method of monitoring data operations at a data storage device: Systems and methods of monitoring data operations at a data storage device are disclosed. In an embodiment, a first read access request to access first data and a second read access request to access second data may be determined. A first physical block address containing the first data and a... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.
20090002866 - Adjustment of read/write clock edge timing: Apparatus and methods are disclosed that adjust the phase of a read/write clock signal. The read/write clock signal may be used in a data storage apparatus to regulate reading/writing on a data storage media. An apparatus includes an adjustment circuit that adjusts phase of an edge of a read/write clock... Agent: Myers Bigel Sibley & Sajovec, P.A.
20090002867 - Alternative sensors for tracking and timing in bit patterned media: An apparatus includes a bit patterned magnetic storage media, a write transducer positioned adjacent to the bit patterned magnetic storage media, a write driver coupled to the write transducer to deliver write pulses to the write transducer, an optical sensor for producing a bit pattern signal, and a timing recovery... Agent: Pietragallo Gordon Alfano Bosick & Raspanti, LLP
20090002865 - Zone based timing recovery for bit patterned media: A method includes: producing a bit detection signal in response to a plurality of islands located in a plurality of zones of a bit patterned media, processing the bit detection signal to produce a synchronization signal, wherein the processing is dependent on characteristics of the islands in the zone containing... Agent: Pietragallo Gordon Alfano Bosick & Raspanti, LLP
20090002868 - Read after write enhancement for bit patterned media: A read/write head for use with bit-patterned media detects write synchronization errors between a write clock and the bit-patterned media. In particular, the read/write head writes data to the bit-patterned media using a write clock. The data is then read from the bit-patterned media and used to detect write synchronization... Agent: Kinney & Lange, P.A.
20090002869 - Positioning of plants in servo systems: Apparatus is provided for fast-adjustment of the position of a plant in a servo system in which a servo output indicative of the plant position is provided to a positioning system for positioning the plant in dependence on the servo output. The apparatus includes an adjustment signal generator, operable in... Agent: Ibm Corporation, T.j. Watson Research Center
20090002870 - Flying height measurement and control with user data signal: A hard disk drive that determines a flying height from a slope of a line created from a ratio of amplitudes of frequencies in response to impulse functions. A first set of amplitudes of reference frequencies can be determined from a reference impulse. A second set of amplitudes of data... Agent: Irell & Manella LLP
20090002871 - Method and apparatus for head positioning using spiral servo patterns in a disk drive: According to one embodiment, a disk drive having a disk, a read head, a servo controller, and a CPU. In the disk, a multi-spiral servo pattern is recorded. The read head reproduces a hexagon-shaped detection signal from the multi-spiral servo pattern. The servo controller generates amplitudes values for respective frames,... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090002872 - Method and apparatus for positioning head on data track with a variable track width in a disk drive: According to one embodiment, there is provided a disk drive has a controller that performs positioning control of a head on a data track with a variable track width. The disk drive has a disk in which concentric servo tracks are configured at regular intervals and in which the positions... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090002873 - Sensing device for sensing installation position of a read head: A sensing device for sensing installation position of a read head is assembled on the read head correspondingly to a scale and comprises at least three sensing elements and three signal generators. The three sensing elements are located on one end surface of the read head facing the scale to... Agent: Dr. Banger Shia
20090002874 - Repeated runout compensation using scaled position signals: In accordance with various embodiments, a radial separation distance between first and second servo seams on a storage medium is determined, and a scaled position signal is generated in relation to the determined radial separation distance and a measured position signal. An error runout correction (ERC) value is obtained from... Agent: Fellers, Snider, Blankenship, Bailey & Tippens
20090002875 - Magnetic recording medium and method of fabricating the same: A magnetic recording medium and a method of fabricating the same are provided. The magnetic recording medium in which a position for magnetic recording is patterned with a magnetic material, includes a magnetic recording layer which includes a data area having a plurality of data tracks, and a servo area... Agent: Sughrue Mion, PLLC
20090002876 - Method and apparatus for writing servo data, using spiral servo patterns in a disk drive: According to one embodiment, a servo-writing method for use in a disk drive, in which a CPU causes a head to record final patterns in a disk, by using the multi spiral servo pattern recorded in the disk. The CPU uses a designated spiral servo pattern, positioning the head at... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090002877 - Media preservation for information transducing drive: An information transducing drive performs information transducing operations with respect to transducable media. In an example embodiment the drive comprises an information transducer (30); a cartridge handler (32); a media transport system (35); and a controller (36). The transducer (30) is configured to perform the information transducing operations with respect... Agent: Nixon & Vanderhye, PC
20090002878 - Method of producing a magnetic recording medium: The present invention is characterized by the fact that a non-magnetic substrate 11, target members 12, and magnetic plates 21 are placed in parallel in a film-forming apparatus 10, a high frequency voltage is applied to the target members, the opposite polarities alternately occur at equal intervals on the surfaces... Agent: Sughrue Mion, PLLC
20090002879 - Apparatus and method for reducing turbulence of airflow in a hard disk drive: A sickle-shaped disk drive spoiler for reducing turbulence of airflow in a hard disk drive is provided. The sickle-shaped spoiler includes a body portion for directing airflow generated by a rotating disk, the rotating disk comprising an inner diameter and an outer diameter and wherein the body portion of the... Agent: Hitachi C/o Wagner Blecher LLP
20090002881 - Damped drivable assembly, and method for damping drivable assembly: A damped assembly is provided including a drivable assembly with housing, and a damper structure in operative association with the housing for dampening noise and/or vibration. The damper structure includes a viscoelastic damper layer and a continuous, polymeric constraining layer intimately contacting and encasing the viscoelastic damper layer.... Agent: Berenato, White & Stavish, LLC
20090002882 - Disk drive unit: According to one embodiment, a disk device includes a recording medium rotated by the spindle motor, and a circulation filter disposed at that corner of the bottom wall which is situated closest to the head on the downstream side of the head. The base includes a guide channel through which... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090002880 - Information storage apparatus: An information storage apparatus includes: at least one information storage medium each of which is in a disk-like shape, rotates being fixed to a common rotating shaft and in which information is recorded; a head which accesses the information storage medium by approaching or touching the information storage medium; an... Agent: Greer, Burns & Crain
20090002883 - Wire-assisted magnetic write device with phase shifted current: A magnetic device includes a write element having a write element tip and a conductive coil for carrying a current to induce a first field from the write element. A conductor proximate the write element tip carries the current to generate a second field that augments the first field. A... Agent: Kinney & Lange, P.A. The Kinney & Lange Building
20090002884 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: An encasing section that accommodates a pole layer includes an encasing layer having an encasing groove, and a nonmagnetic film disposed in the encasing groove at a position between the encasing layer and the pole layer. The pole layer includes a track width defining portion and a wide portion. The... Agent: Oliff & Berridge, PLC
20090002885 - Perpendicular magnetic recording head and method of manufacturing the same: Provided are a perpendicular magnetic recording (PMR) head and a method of manufacturing the same. The PMR head includes a main pole, a return yoke, and a coil to which current is supplied so that the main pole generates a magnetic field required for recording data in a recording medium.... Agent: Sughrue Mion, PLLC
20090002886 - Method for producing magnetic recording medium, magnetic recording medium produced by the production method, and mold structure for use in the production method: The present invention provides a method for producing a magnetic recording medium having servo areas and data areas using a mold structure. The method includes at least forming an imprint resist layer on a substrate surface of a magnetic recording medium, forming a convexo-concave pattern in the imprint resist layer... Agent: Sughrue Mion, PLLC
20090002887 - Double electrode cantilever actuation for seek-scan-probe data access: A seek-scan-probe memory device, utilizing a media electrode to allow active cantilevers to contact the storage media, and a pull electrode to pull up cantilevers away from the storage media when in an inactive mode. Other embodiments are described and claimed.... Agent: Seth Kalson C/o Intellevate, LLC
20090002888 - Overpass structure of flexible printed cable (fpc) signal lines with suspension signal lines for a hard disk drive: A printed circuit that connects a head to a pre-amplifier circuit of a hard disk drive. The head has a pair of write bond pads and a pair of read bond pads. The printed circuit has a pair of read traces located in a first layer and connected to the... Agent: Irell & Manella LLP
20090002889 - O-ring free cooling pallet for hard disk drive slider carriers: An o-ring free cooling pallet for holding a carrier is disclosed. The pallet comprises a first clamp fixed to a planar surface of the pallet for coupling with a first edge of the carrier. The pallet also comprises a second clamp removably coupled to the planar surface of the pallet... Agent: Hitachi C/o Wagner Blecher LLP
20090002890 - Spoiler with integrated bypass channel wall for hdd applications: A spoiler implementable in a hard disk drive. The spoiler includes a structure. The structure includes a diffuser integrated therewith. The structure further includes an extension emanating there from, the extension configured to complete a wall of a bypass channel in said hard disk drive, said inner wall having a... Agent: Hitachi C/o Wagner Blecher LLP
20090002891 - Head, head suspension assembly, and disk device provided with the same: According to one embodiment, a slider of a head includes a trailing step portion which protrudes from a facing surface of the slider, is situated on the downstream side of a negative-pressure cavity with respect to an airflow, and has a top surface, a trailing pad which protrudes from the... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090002892 - Head support mechanism and disk device provided with the same: According to one embodiment, a head support mechanism includes a plate-shaped arm, a load beam in the form of an elongated plate having a distal end portion on which a head is supported and a proximal end portion spaced from the distal end portion; and a hinge plate which connects... Agent: Pillsbury Winthrop Shaw Pittman, LLP
20090002893 - Magneto-resistive effect device of the cpp structure, and magnetic 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 magnetized layer and a free layer stacked one upon another with said spacer layer interposed between them, with a sense current applied in a stacking... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.
20090002894 - Outer actuator arm constrained layer dampers: Outer arm constrained layer dampers to improve actuator dynamics are disclosed. One embodiment provides a housing and disk pack mounted to the housing and having a plurality of disks that are rotatable relative to the housing. In addition, an actuator is coupled to the housing, the actuator having a plurality... Agent: Hitachi C/o Wagner Blecher LLP
20090002896 - Magnetic writer for patterned media with increased write field: A magnetic writer writes to a magnetic medium including a plurality of tracks that each includes a plurality of isolated magnetic elements for storage of information. The magnetic writer includes a write element having a write element tip having a leading edge, a trailing edge, and first and second side... Agent: Kinney & Lange, P.A.
20090002895 - Wire-assisted magnetic write device with a gapped trailing shield: A magnetic device includes a write element having a write element tip and a first return element magnetically coupled to the write element on a trailing side of the write element. A conductor is positioned proximate to an edge of the write element tip and is configured to generate an... Agent: Kinney & Lange, P.A.
20090002897 - Cpp-gmr device and magnetic disk system: The invention provides a giant magneto-resistive effect device (CPP-GMR device) having a CPP (current perpendicular to plane) structure comprising a multilayer device assembly comprising a fixed magnetization layer, a spacer layer, a free layer and a cap layer stacked one upon another in order, with a sense current applied in... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.
20090002898 - Cpp-tmr sensor with non-orthogonal free and reference layer magnetization orientation: A TMR sensor structure having free and reference layers, where the magnetic orientations of the free and reference layers are non-orthogonal. In one embodiment, a ferromagnetic free layer film has a bias-point magnetization nominally oriented in plane of the film thereof, in a first direction at an angle θfb with... Agent: Zilka-kotab, PC- Hit
20090002899 - Magnetoresistive element, magnetoresistive head, and magnetic disk apparatus: According to one embodiment, a magnetoresistive element includes a magnetization fixed layer, an intermediate layer provided on the magnetization fixed layer, a free layer provided on the intermediate layer, a separating layer composed of nonmagnetic metal and provided on the free layer, and a fluctuation compensated layer whose static magnetic... Agent: Pillsbury Winthrop Shaw Pittman, LLPPrevious industry: Optical: systems and elements
Next industry: Electricity: electrical systems and devices
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