Dynamic magnetic information storage or retrieval inventions

20090262445 - Bulk feeding disk drives to disk drive testing systems: A method of supplying disk drives to a disk drive testing system includes placing a disk drive tote, carrying multiple disk drives, in a presentation position accessible to an automated transporter of the disk drive testing system. The method includes actuating the automated transporter to retrieve one of the disk... Agent: Fish & Richardson P.C.

20090262446 - Method for measuring write width and/or read width of a composite magnetic head and a measuring device using the method: A write sensitive width is calculated by writing a test data by a write head by moving the write head in a radial direction of a magnetic recording medium at a designated speed K to obliquely cross a designated track or a track adjacent to the designated track, reading the... Agent: Mattingly & Malur, P.C.

20090262444 - Transferring disk drives within disk drive testing systems: A method of transferring disk drives within a disk drive testing system includes actuating an automated transporter to retrieve multiple disk drives presented for testing, and actuating the automated transporter to deliver each retrieved disk drive to a respective test slot of the disk drive testing system and insert each... Agent: Fish & Richardson P.C.

20090262447 - Storage device: A storage device includes: a storage unit for writing data into a rotating storage medium via a writing head; a nonvolatile memory; a temporary storage memory for storing a plurality of writing commands temporarily; and a controller for executing the plurality of writing commands so as to selectively write data... Agent: Greer, Burns & Crain

20090262448 - Heat-assisted magnetic head constituted of slider and light source unit, and manufacturing method of the head: Provided is a heat-assisted magnetic recording head constituted of a light source unit and a slider, which can be easily joined to each other with sufficiently high accuracy of joining position. The slider comprises a head part including a waveguide having an incident center on its end. The surface including... Agent: Oliff & Berridge, PLC

20090262449 - Disk drive: A disk drive for driving a disk is disclosed, which includes: a driving unit configured to provide a driving force onto the disk, a main circuit pattern electrically connected with the driving unit, a sensor unit configured to sense a rotation speed of the disk, a first board supporting the... Agent: Staas & Halsey LLP

20090262450 - Data reading module and method for reading optical disc: Disclosed is a data reading module for reading an optical disc with data regions and undesired regions, wherein at least one of the undesired regions is located between the data regions. The data reading module includes: a decoder arranged to decode the optical disc to generate decoded data; a data... Agent: North America Intellectual Property Corporation

20090262451 - Increased format efficiency using disk synchronized write: A hard disk drive with a disk that has a plurality of data fields. Each data field includes a sync field and a plurality of sync marks. Data is written onto the disk in accordance with a write clock. The write clock is generated and synchronized by the sync field... Agent: Irell & Manella LLP

20090262452 - Multichannel time based servo tape media: A thin film magnetic recording head is fabricated by forming a substrate from opposing ferrite blocks which have a ceramic member bonded between them. This structure is then diced to form a plurality of columns, wherein each column has a ferrite/ceramic combination. Each column represents a single channel in the... Agent: Dorsey & Whitney LLP Intellectual Property Department

20090262453 - Carrier tape having localized adhesive in cavity regions: A carrier tape (100) for releasably mounting electronic components (130) includes an upper surface (110), at least one region (120) for holding the electronic components extending down from the upper surface (110) having sidewall surfaces, and a bottom surface (140). A bottom surface adhesive layer (125) is positioned on at... Agent: Texas Instruments Incorporated

20090262454 - Temperature control within disk drive testing systems: A disk drive testing system cooling circuit includes a plurality of test racks. Each of the test racks include a test slot compartment and a test electronics compartment. Each of the test slot compartments includes multiple test slots, and one or more cooling conduits configured to convey a cooling liquid... Agent: Fish & Richardson P.C.

20090262455 - Temperature control within disk drive testing systems: A disk drive test slot thermal control system includes a test slot. The test slot includes a housing and an air mover (e.g., a blower or a fan). The housing includes an outer surface, and an internal cavity. The internal cavity includes a test compartment for receiving and supporting a... Agent: Fish & Richardson P.C.

20090262456 - Method of formatting magnetic media using a thin film planar arbitrary gap pattern magnetic head: Methods of formatting media using planar magnetic heads. A head may comprise a substrate having conductive thru-hole vias extending therethrough, a first magnetic layer deposited and patterned on the substrate, a first insulation layer deposited and patterned on the first magnetic layer, a conductive coil layer deposited and patterned on... Agent: Dorsey & Whitney LLP Intellectual Property Department

20090262457 - Microwave assisted magnetic recording system: A microwave assisted magnetic recording system includes a write pole that generates a write magnetic field, an element that generates a radio frequency assist magnetic field, and a recording medium that moves relative to the write pole. The recording medium is exposed to the radio frequency assist magnetic field before... Agent: Kinney & Lange, P.A.

20090262458 - Abs design for dynamic flying height (dfh) applications: A DFH (Dynamic Flying Height) type slider ABS design has significantly improved DFH efficiency and a decreased sensitivity of flying height to both ambient conditions and disk surface variations. This is a result of embedding the read/write head and heater in a micro-pad having a very small surface area. The... Agent: Saile Ackerman LLC

20090262459 - Slider of a hard disk drive and hard disk drive having the same: A slider of a hard disk drive can include a slider main body on which a read/write head is mounted, the read/write head configured to write data to a disk and to read data from the disk by being lifted a predetermined height from a surface of the disk by... Agent: Stanzione & Kim, LLP

20090262460 - Head assembly having a sensing element: A head or slider having a sensor element to detect changes in head-media spacing is disclosed. In illustrated embodiments the sensor element includes a piezoelectric sensor layer or similar layer that provides acoustic emission or vibration responsive to changes in head-media spacing. In illustrated embodiments, the sensor element is located... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20090262461 - fluid dynamic bearing with an immiscible fluid barrier: A fluid dynamic bearing with an immiscible fluid barrier deposited on the bearing oil is disclosed. One embodiment provides the fluid dynamic bearing having a seal gap to define a seal cavity. The seal cavity is filled with the bearing oil for lubricating the fluid dynamic bearing. The immiscible fluid... Agent: Hitachi C/o Wagner Blecher LLP

20090262462 - Storage apparatus: A carriage block body is coupled to a support shaft for relative rotation. The carriage block body defines a bearing hole receiving the support shaft. A carriage arm extends from the carriage block body along an imaginary plane perpendicular to the longitudinal axis of the support shaft. The carriage arm... Agent: Greer, Burns & Crain

20090262463 - Disk drive suspension: A suspension is provided with a base plate, load beam, and flexure. The base plate includes a boss portion, a first region situated on a side closer to a slider with respect to a center of the boss portion, and a second region situated on a side more remote from... Agent: Frishauf, Holtz Goodman & Chick, P.C. 16th Floor

20090262465 - Magnetic head and manufacturing method thereof: Embodiments of the present invention provide a magnetic head having a read head of stable reading operation and with less magnetic fluctuation noise. According to one embodiment, a free layer has a structure comprising two ferromagnetic layers (a first free layer and a second free layer) that are coupled anti-ferromagnetically... Agent: Townsend And Townsend And Crew LLP

20090262464 - Perpendicular magnetic write head having a wrap around shield constructed of a low permeability material for reduced adjacent track erasure: A magnetic write head for perpendicular magnetic recording having a trailing, wrap around magnetic shield constructed of a low magnetic permeability. The lower permeability of the shield prevents magnetic saturation of the shield, which in turn prevents adjacent track interference such as adjacent track erasure. The shield can also be... Agent: Zilka-kotab, PC- Hit

20090262466 - Magnetic sensor and magnetic encoder using same: Soft magnetic material elements are provided on both sides of each of magneto-resistance effect elements with a spacing therebetween. As a result, an external magnetic field generated from a magnet can be pulled to above a substrate on which the magneto-resistance effect element is provided, thereby making it possible to... Agent: Beyer Law Group LLP

20090262467 - Magentic junction memory array: A magnetic junction memory array and methods of using the same are described. The magnetic junction memory array includes a plurality of electrically conductive word lines extending in a first direction, a plurality of electrically conductive bit lines extending in a second direction and forming a cross-point array with the... Agent: Campbell Nelson Whipps, LLC

20090257142 - Head assembly in a depopulated configuration: The application relates to utilizing a head assembly, having a default boot-up head and at least one other head, in a depopulated configuration. If, during testing of the head assembly, the default boot-up head is found to be flawed, it designated as faulty in a non-volatile memory in the head... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20090257145 - Control circuit and information storage device: A information storage device has a head slider having a flying height control mechanism and a recording and reproducing head, a low frequency superposed circuit that superimposes a low frequency voltage to a flying height adjustment signal to adjust the flying height of the head slider, and a polarity discrimination... Agent: Greer, Burns & Crain

20090257146 - Magnetic disc apparatus and track following method: A disclosed magnetic disc apparatus includes a magnetic disc medium including a first part and a second part having light reflection different from light reflection of the first part; a head having a first device for detecting reflectivity on the magnetic disc medium and a second device for performing magnetic... Agent: Greer, Burns & Crain

20090257144 - Perpendicular magnetic recording medium and magnetic storage device using the same: Embodiments of the present invention provide a perpendicular magnetic recording medium that reduces the noise of granular recording layers, obtains sufficient overwrite characteristic that suppresses an increase in the magnetic cluster size, and allows high-density recording. According to one embodiment, a perpendicular magnetic recording medium comprising substrate having thereon at... Agent: Townsend And Townsend And Crew LLP

20090257143 - Thin-film magnetic head having function of adjusting closure height: Provided is a thin-film magnetic head, in which the magnetic spacing can be controlled appropriately, regardless of the presence of the variation in height of the medium-opposed surface of the closure. The thin-film magnetic head comprises: at least one head element formed on or above an element-formation surface of a... Agent: Oliff & Berridge, PLC

20090257147 - Perpendicular magnetic recording medium and magnetic recording apparatus: A disclosed perpendicular magnetic recording medium includes a substrate; a soft magnetic underlayer disposed on the substrate and having no remanent magnetization; and a ferromagnetic recording layer disposed on the soft magnetic underlayer. The soft magnetic underlayer includes at least three soft magnetic layers laid one above the other with... Agent: Greer, Burns & Crain

20090257148 - Magnetic recording medium and magnetic recording and reproducing device: There is provided a magnetic recording medium which contains a substrate in the shape of a disk, and a plural of recording bit formed on the substrate, wherein a bottom face of the recording bit is disposed so as to face the substrate, a top face of the recording bit... Agent: Greer, Burns & Crain

20090257149 - Magnetoresistive sensor with sub-layering of pinned layers: Methods and apparatus provide magnetoresistance sensors. A tunneling magnetoresistance (TMR) sensor may include configurations that are arranged as a top TMR stack. One of two antiparallel layers of pinned layers within the TMR stack may be subdivided by a spacer layer. Tantalum may form the spacer layer that is inserted... Agent: Zilka-kotab, PC- Hit

20090257150 - Apparatus for storing electrical energy: An apparatus for storing electrical energy is provided. The apparatus includes a first magnetic layer, a second magnetic layer, and a dielectric layer. The first magnetic layer has a first surface with saw tooth roughness; the second magnetic layer has a second surface with saw tooth roughness; and the dielectric... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20090257152 - Magnetoresistive sensor with high tmr and low ra: A magnetoresistive sensor having an antiparallel coupled pinned layer structure including an AP1 layer and an AP2 layer. The AP2 layer includes two ferromagnetic layers AP2(a) and AP2(b), and a separation layer sandwiched therebetween. The AP2(a) layer is significantly larger than the AP2(b) layer, which results in strong pinning, while... Agent: Zilka-kotab, PC- Hit

20090257153 - Binary output reader structure (bors) with high utilization rate: We disclose a magnetic read head, and method for making it, that operates in a binary rather than an analog mode. This greatly boosts signal amplitude for high area density recording as device dimensions get smaller. The device is well suited to the inclusion of side shields which further reduces... Agent: Saile Ackerman LLC

20090257154 - Scissoring-type current-perpendicular-to-the-plane giant magnetoresistance (cpp-gmr) sensors with damped free layer structures: A “scissoring-type” current-perpendicular-to-the-plane giant magnetoresistive (CPP-GMR) sensor has magnetically damped free layers. In one embodiment each of the two free layers is in contact with a damping layer that comprises Pt or Pd, or a lanthanoid (an element selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm,... Agent: Thomas R. Berthold

20090257151 - Thin seeded co/ni multilayer film with perpendicular anisotropy for spintronic device applications: A spin valve structure for a spintronic device is disclosed and includes a composite seed layer made of at least Ta and a metal layer having a fcc(111) or hcp(001) texture to enhance perpendicular magnetic anisotropy (PMA) in an overlying (Co/Ni)x multilayer. The (Co/Ni)x multilayer is deposited by a low... Agent: Saile Ackerman LLC

20090251814 - Magnetic transfer master carrier, magnetic transfer method, and magnetic recording medium: P

20090251816 - Patterned medium inspection method and inspection device: A defect inspection method and device for a perpendicular magnetic recording medium that has discrete recording tracks and grooves between recording tracks, including DC demagnetizing the perpendicular magnetic recording medium, detecting a reproduced signal from the perpendicular magnetic recording medium after the DC demagnetizing, removing output fluctuation components caused by... Agent: Rabin & Berdo, PC

20090251815 - Testing system and testing method for inspecting electonic devices: A testing system for inspecting electronic devices includes a first transparent disk, a first image capturing unit disposed under the first transparent disk, a second disk disposed next to the first transparent disk, a guiding unit disposed on adjacent area between the transparent disk and the second disk, and a... Agent: Rosenberg, Klein & Lee

20090251817 - Data error recovery using voting on multiple retrials: A hard disk drive with a disk that has a plurality of data bits. The drive includes a circuit that reads each data bit n times and selects a value for the bit based on the most frequent occurrence of one of a plurality of values. This process provides a... Agent: Irell & Manella LLP

20090251818 - Secure data scrubbing utility: A software method and utility for performing a user-controlled data shredding operation for overwriting an entire file structure inclusive of all black-shaded blocks of data associated with a particular file of interest, then removing all references to the data structure in the operating environment, then renaming the data structure, and... Agent: Ober, Kaler, Grimes & Shriver Attorneys At Law

20090251819 - Hard disk drive and method of setting a write-verify temperature thereof: A method of setting a write-verify temperature of a hard disk drive having at least one disk mapped into a plurality of zones and at least one head. The method can include measuring at least one parameter related to performance of the hard disk drive for each head and each... Agent: Stanzione & Kim, LLP

20090251820 - Integrated servo and read emr sensor: A magnetic storage system according to one embodiment includes magnetic media containing magnetic domain tracks; and at least one head for reading from the magnetic media, each head having: a first Extraordinary Magentoresistive (EMR) device for detecting magnetic fields of a first magnetic domain track; a second EMR device for... Agent: Zilka-kotab, PC- Hit

20090251821 - Dedicated id-od writer with beveled pole tips and method of manufacture: A transducing head for use with a storage medium rotatable about an axis includes first and second writers for writing to the storage medium. The first writer is configured for dedicated writing to a first radial region of the storage medium, and the second writer is configured for dedicated writing... Agent: Kinney & Lange, P.A.

20090251822 - Magnetic recording medium and magnetic recording apparatus: A magnetic recording medium includes a plurality of recording tracks formed of a magnetic material and a non-magnetic area arranged between the recording tracks to separate each recording track. The non-magnetic area is formed of a non-magnetic material, which can accumulate and retain electric charges. The electric charges accumulated in... Agent: Greer, Burns & Crain

20090251823 - Write head with common mode termination resistor: A write circuit and a head for a hard disk drive. The head includes a substrate that has an electrical ground and a write element that has a center tap. The head also has a resistor that is connected to the center tap and the electrical ground. The resistor provides... Agent: Irell & Manella LLP

20090251824 - Ramp to park read/write head and hard disk drive including the same: A ramp to park a read/write head includes a fixed portion fixed to a base member of the hard disk drive, and a supporting portion to contact and support the tip-tab of the suspension assembly and includes an inclined rail surface and a horizontal rail surface which extend in a... Agent: Stanzione & Kim, LLP

20090251825 - Micro electro mechanical system and head gimbal assembly: Embodiments of the present invention help to prevent dropout of a head slider from an micro electrical mechanical system (MEMS) and damage of the MEMS. In an embodiment of the present invention, a suspension for a slider dynamic electric test (DET) comprises an MEMS for supporting a head slider. The... Agent: Townsend And Townsend And Crew LLP

20090251826 - Hard disk drive with recessed actuator joint: Components and assemblies for a hard disk drive (HDD) with a recessed actuator joint are described. A rotary actuator hub assembly comprises a shaft having a flange, and a pivot seat on which the flange is seated when the shaft is fastened to an HDD chassis. According to an embodiment,... Agent: Hitachi C/o Wagner Blecher LLP

20090251827 - Recording head for reducing side track erasure: The present invention relates to a head having an air bearing surface for confronting the surface of a storage medium. The head includes a first pole that is spaced apart from a second pole. At least one non-magnetic spacer is positioned between the first pole and the second pole such... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20090251829 - Seed layer for tmr or cpp-gmr sensor: A composite seed layer that reduces the shield to shield distance in a read head while improving Hex and Hex/Hc is disclosed and has a SM/A/SM/B configuration in which the SM layers are soft magnetic layers, the A layer is made of at least one of Co, Fe, Ni, and... Agent: Saile Ackerman LLC

20090251828 - Vertically stacked dfh heater design for protrusion shape control: A vertically stacked DFH design in a read/write head is disclosed that allows independent control of write gap protrusion and read gap protrusion. A first heater is formed in an insulation layer proximate to a sensor in a read head. A second heater is formed in a second insulation layer... Agent: Saile Ackerman LLC

20090251830 - Magnetic detector: Magnetoresistive elements each have a layered structure including a pinned magnetic layer having a magnetization direction pinned in one direction, a free magnetic layer with magnetization being variable by an external magnetic field, and a nonmagnetic material layer arranged therebetween. Assuming that a center distance between a N-pole and a... Agent: Beyer Law Group LLP