http://www.freshpatents.com/Dynamic-magnetic-information-storage-or-retrieval-dtnewntc360.php USPTO Class 360 - Dynamic magnetic information storage or retrieval en-us Thu, 24 Jul 2008 15:03:14 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Inspection-head-used-for-magnetic-disc-inspecting-apparatus-dt20080717ptan20080170317.php Thu, 24 Jul 2008 15:03:14 -0700 An inspection head is used for an inspecting apparatus that inspects whether there is an abnormal projection on a disk surface having a first lubrication layer, and floats over the disk surface. The inspection head includes a floating surface covered with a second lubrication layer that is repellent to the... http://www.freshpatents.com/Method-and-apparatus-for-component-level-measurement-of-flying-height-for-a-head-gimbal-assembly-for-use-in-a-hard-disk-drive-dt20080717ptan20080170316.php Thu, 24 Jul 2008 15:03:14 -0700 A method of using an optical test stand to perform both intensity-based and phase-based interferometry to create improved estimates of the flying height of a slider off of rotating disk surface, which are used to generate a three-dimensional map of the air bearing surface, crown and camber estimates, take-off and... http://www.freshpatents.com/Spectral-analysis-of-a-position-error-signal-dt20080717ptan20080170315.php Thu, 24 Jul 2008 15:03:14 -0700 The present disclosure is directed to spectral analysis of a position error signal. In a particular embodiment, the method includes analyzing a spectral content of a position error signal. The method also includes comparing the spectral content to a threshold. Further, the method includes determining a result based on the... http://www.freshpatents.com/Magnetic-recording-medium-magnetic-recording-and-reproducing-apparatus-and-method-for-manufacturing-magnetic-recording-medium-dt20080717ptan20080170318.php Thu, 24 Jul 2008 15:03:14 -0700 The magnetic recording medium includes a substrate and a recording layer formed in a predetermined concavo-convex pattern over the substrate, and the recording layer includes recording elements each formed as a convex portion of the recording layer. Surface steps are formed in an inner area including a radially innermost portion... http://www.freshpatents.com/Integrated-head-for-heat-assisted-magnetic-recording-dt20080717ptan20080170319.php Thu, 24 Jul 2008 15:03:14 -0700 A magnetic recording apparatus includes a write element and an optical device for heating a portion of a magnetic medium. The optical device and the write element are arranged to generally prevent the write element from affecting the optical fields generated by the optical device.... http://www.freshpatents.com/Control-device-control-method-and-storage-apparatus-dt20080717ptan20080170321.php Thu, 24 Jul 2008 15:03:14 -0700 Upon correction, an amplitude measurement unit repeats a process of attaining a write heat state by a write clearance control unit and writing user data to a data region of a measurement track in the state in which a head is positioned to an arbitrary measurement track and then switching... http://www.freshpatents.com/Storage-apparatus-and-control-method-dt20080717ptan20080170320.php Thu, 24 Jul 2008 15:03:14 -0700 An actuator supports a head at one end of a rotatably supported shaft unit and supports a coil of a voice coil motor at the other end, and moves the head to an arbitrary track position of a recording medium. A sensor, attached to a coil support unit of the... http://www.freshpatents.com/Data-recording-device-dt20080717ptan20080170322.php Thu, 24 Jul 2008 15:03:14 -0700 Embodiments of the present invention provide a data recording device capable of achieving desired performance while increasing the convergence rate. According to one embodiment, in a data recording device, an update-width determination unit included in a setting updating unit determines an update-width of a set frequency ƒ in a digital... http://www.freshpatents.com/Utilization-of-the-acceleration-zone-in-ammonite-servo-writing-dt20080717ptan20080170323.php Thu, 24 Jul 2008 15:03:14 -0700 A method for writing servo information onto a disk of a hard disk drive with a servo writer. The method includes accelerating a head to a constant velocity across a disk. The disk being defined as having an acceleration zone and a constant velocity zone. The head is then used... http://www.freshpatents.com/Magnetic-recording-medium-recording-reproducing-apparatus-and-stamper-for-manufacturing-a-magnetic-recording-medium-dt20080717ptan20080170324.php Thu, 24 Jul 2008 15:03:14 -0700 On a rotary-type magnetic recording medium, servo patterns are formed in servo pattern regions on one surface and the other surface of a disk-shaped substrate by patterns including recording regions and non-recording regions. In the servo pattern regions on both the one surface and the other surface, plural functional regions... http://www.freshpatents.com/Disk-centering-assembly-and-spindle-hub-dt20080717ptan20080170325.php Thu, 24 Jul 2008 15:03:14 -0700 The present invention provides a centering assembly for centering a plurality of disks being assembled onto a spindle hub, and further provides a spindle hub being capable of centering disks being assembled.... http://www.freshpatents.com/Head-gimbal-assembly-with-improved-interconnection-between-head-slider-and-suspension-fabricating-method-thereof-and-magnetic-disk-drive-with-the-same-dt20080717ptan20080170326.php Thu, 24 Jul 2008 15:03:14 -0700 A head gimbal assembly (HGA) has an improved interconnection between a head slider and a suspension of the HGA. The interconnection is achieved by using a reverse surface of an air bearing surface of the head slider as bonding surface to provide more space for arranging more slider electrical bonding... http://www.freshpatents.com/Method-for-forming-carbon-protective-film-and-method-for-producing-magnetic-recording-medium-magnetic-recording-medium-and-magnetic-recording-reproducing-apparatus-dt20080717ptan20080170327.php Thu, 24 Jul 2008 15:03:14 -0700 The present invention provides a method for forming a carbon protective film and a method for producing a magnetic recording medium, that decreases the generation of particles in a plasma CVD apparatus thereby improving flatness of the surface of a carbon protective film, and also can manufacture a magnetic recording... http://www.freshpatents.com/Magnetic-head-dt20080717ptan20080170328.php Thu, 24 Jul 2008 15:03:14 -0700 The present invention provides a magnetic head that can sustain favorable head contact even when magnetic tapes having different thicknesses are used. A magnetic head has a sliding surface coming in contact with a moving magnetic tape. An electromagnetic transducing element is disposed in the sliding surface. First edges are... http://www.freshpatents.com/Granular-perpendicular-magnetic-recording-media-with-improved-corrosion-resistance-by-sul-post-deposition-heating-dt20080717ptan20080170329.php Thu, 24 Jul 2008 15:03:14 -0700 A method of manufacturing a granular perpendicular magnetic recording medium with improved corrosion resistance comprises sequential steps of providing a non-magnetic substrate including a surface; forming a soft magnetic underlayer (SUL) over the surface; post-deposition heating the SUL; forming an intermediate layer stack over the heated SUL; and forming at... http://www.freshpatents.com/Recording-medium-cartridge-dt20080717ptan20080170330.php Thu, 24 Jul 2008 15:03:14 -0700 A recording tape cartridge is structured so as to accommodate, within a case, a reel on which is wound a magnetic tape which is a recording medium. The recording tape cartridge has a so-called WORM function such that overwriting of data on a recording region of the magnetic tape where... http://www.freshpatents.com/Magnetic-recording-medium-magnetic-recording-and-reproducing-apparatus-method-for-manufacturing-magnetic-recording-medium-and-method-for-checking-magnetic-recording-medium-dt20080717ptan20080170331.php Thu, 24 Jul 2008 15:03:14 -0700 A magnetic recording medium is provided, which has recording layers having concavo-convex patterns formed on both sides of a substrate and can easily distinguish one face from the other face. A magnetic recording and reproducing apparatus having the magnetic recording medium is also provided. The magnetic recording medium includes a... http://www.freshpatents.com/Head-slider-dt20080717ptan20080170332.php Thu, 24 Jul 2008 15:03:14 -0700 Embodiments of the present invention provide a slider that may suppress contamination from being attached to the flying surface of the slider without influence on reduction of the flying height of the slider, and a method for producing the same. According to one embodiment, ions exerting an effect of decreasing... http://www.freshpatents.com/Suspension-board-with-circuit-dt20080717ptan20080170333.php Thu, 24 Jul 2008 15:03:14 -0700 A stepped-part 4b with a lower tip side is formed on the top face of a pattern end 4, and a lower face 4c thereof is used as a plane on which a solder ball 7 is provided. One or more protrusions 4d made of a swollen conductive layer are... http://www.freshpatents.com/Magnetic-head-dt20080717ptan20080170334.php Thu, 24 Jul 2008 15:03:14 -0700 According to an aspect of an embodiment, a magnetic head comprises a magnetic pole; a first return yoke located under a lower side of the magnetic pole; a second return yoke located over an upper side of the magnetic pole; and a side yokes made of a soft magnetic material,... http://www.freshpatents.com/In-situ-radio-frequency-shield-for-a-magnetic-linear-recordingmedia-head-dt20080717ptan20080170335.php Thu, 24 Jul 2008 15:03:14 -0700 A read/write head for magnetic tapes configured with an in situ radio frequency (RF) shield is provided. The RF shield of the invention inhibits device elements reading data from reading RF radiation irradiated by other device elements writing data. The RF shield may be situated between the device elements of... http://www.freshpatents.com/Magneto-resistive-effect-device-and-magnetic-disk-system-dt20080717ptan20080170336.php Thu, 24 Jul 2008 15:03:14 -0700 The invention provides a giant magneto-resistive effect device (CPP-GMR device) having the CPP (current perpendicular to plane) structure comprising a spacer layer, and a first ferromagnetic layer and a second ferromagnetic layer stacked one upon another with the spacer layer interposed between them, with a sense current applied in a... http://www.freshpatents.com/method-and-calculator-for-modeling-non-equilibrium-spin-polarized-charge-transport-in-nano-structures-dt20080717ptan20080170338.php Thu, 24 Jul 2008 15:03:14 -0700 A method and calculator for obtaining spin polarized quantum transport in 3-dimensional atom-scale spintronic (spin electronics) devices under finite bias voltage, based on implementing Density Function Theory (DFT) in combination with the Keldysh non-equilibrium Greens function (NEGF) formalism to calculate spin polarized quantum transport in 3-dimensional nanostructures under finite bias... http://www.freshpatents.com/Tunnel-magnetoresistive-effect-element-and-thin-film-magnetic-head-with-tunnel-magnetoresistive-effect-read-head-element-dt20080717ptan20080170337.php Thu, 24 Jul 2008 15:03:14 -0700 A TMR element includes a lower electrode layer, a TMR multi-layer stacked on the lower electrode layer, and an upper electrode layer stacked on the TMR multi-layer. The TMR multi-layer includes a tunnel barrier layer having a three-layered structure of a first crystalline layer, a crystalline semiconductor layer and a... http://www.freshpatents.com/Magnetic-head-slider-using-giant-magnetostrictive-material-dt20080717ptan20080170339.php Thu, 24 Jul 2008 15:03:14 -0700 A magnetic head slider includes at least one thin-film magnetic head formed on a trailing surface of the magnetic head slider, and an ABS to be faced a magnetic disk in operation. At least a part of the ABS is made of a giant magnetostrictive material....