Abstract: A magnetoresistive sensor including: a first pinned-magnetization magnetic layer and a free-magnetization magnetic layer, separated by first separating layer for magnetic uncoupling. The sensor further includes a second pinned-magnetization magnetic layer, separated from the free-magnetization magnetic layer by a second separating layer for magnetic uncoupling, the first and second separating layers being located on either side of the free-magnetization magnetic layer, and the respective magnetizations of the first pinned-magnetization magnetic layer and of the free-magnetization magnetic layer, in the absence of an external field, are substantially orthogonal. The orientation of the magnetization of the second pinned layer is selectable.

Abstract: Base decks for data storage systems include a spindle motor region, a medium support region, an enclosure sidewall, and a recessed channel. The spindle motor region is configured to support a spindle motor assembly. The medium support region is beneath a storage medium when the storage medium is positioned within the base deck, and the enclosure sidewall surrounds an outer periphery of the storage medium when it is positioned within the base deck. The recessed channel is within the media support region and extends from the spindle motor region to the enclosure sidewall. The recessed channel illustratively has curved sidewalls that converge.

Abstract: In a perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer which have respective front end faces exposed at a surface opposing a recording medium and are laminated with a nonmagnetic material layer interposed therebetween on the medium-opposing surface, an end magnetization control layer for generating an exchange-coupling field is provided on the upper or lower side of both end parts in a track width direction of the return yoke layer. The exchange-coupling field fixes magnetization in the end parts to the track width direction.

Abstract: A magnetic head according to one embodiment includes a first module having a flat profile tape bearing surface, a second module having a flat profile tape bearing surface, and a third module having a flat profile tape bearing surface. The third module is positioned on an opposite side of the second module than the first module. The tape bearing surfaces of the first, second and third modules may lie along substantially parallel planes, may be configured in a tangent (angled) configuration, or may be configured in an overwrap configuration. Data writing and reading functions are usually performed by different modules at a given time.

Abstract: To provide a perpendicular magnetic recording head which can prevent unintentional recording and erasing from occurring on recording media. In a perpendicular magnetic recording head comprising a pair of side shield layers made of a soft magnetic material on both sides in a track width direction of a magnetic pole part of a main magnetic pole layer, the pair of side shield layers have a front end face exposed at a medium-opposing surface and a side end face extending from one end part of the front end face remote from the magnetic pole part in the track width direction to the deeper side in a height direction, while the front end face and the side end face form an angle of 90° or greater therebetween.

Abstract: An optical article for playback in a player includes a plurality of optically detectable marks disposed on a surface of the optical article; wherein the plurality of optically detectable marks are in a pre-determined combination of a first state and a second state; and at least one first control logic comprising at least one sector; wherein each optically detectable mark is associated with a particular first control logic; wherein each first control logic is executed only when its associated optically detectable mark is in a pre-determined state; and wherein a customized player-readable code is determined using a combination of the plurality of optically detectable marks and their associated first control logic. A method of making the optical article, a method of customizing the optical article, a method and a system for the playback of the optical article are also included.

Abstract: Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the throat height of the shield is self aligned to the location of the flare point of the write pole.

Abstract: A method for transporting discs, A disc transporting device and a drawer type disc transporting device are disclosed. The disc transporting device comprises a lifting mechanism, a swing mechanism and a control element, wherein the lifting mechanism further comprises a clipper element, a drive element and a rotational connection element, the swing mechanism further comprises a corresponding connection element and a swing rotation element. The clipper element can grab at least one disc. The drive element is coupled with the clipper element and drives the lifting mechanism. The rotational connection element engages with the drive element; the corresponding connection element of the swing mechanism corresponds to the rotational connection element to enable the lifting mechanism going up/down along the swing mechanism. The control element engages with the swing rotation element of the swing mechanism to control the swing mechanism.

Abstract: A three terminal magnetic sensing device (TTM) having a trackwidth defined in a localized region by a patterned insulator, and methods of making the same, are disclosed. In one illustrative example, one or more first sensor layers (e.g. which includes a “base” layer) are formed over a collector substrate. A patterned insulator which defines a central opening exposing a top layer of the one or more first sensor layers is then formed. The central opening has a width for defining a trackwidth (TW) of the TTM. Next, one or more second sensor layers are formed over the top layer of the one or more first sensor layers through the central opening of the patterned insulator. The one or more second sensor layers may include a tunnel barrier layer formed in contact with the top layer of the one or more first sensor layers, as well as an “emitter” layer. Various embodiments and techniques are provided.

Abstract: A disk recording and/or reproducing device includes a disk tray having a concave disk housing portion for putting in and taking out a disk-like recording medium; a tray housing case supporting the disk tray so as to be movable in a direction in which the disk tray is inserted and ejected; and a disk cover mounted to the tray housing case and covering over the disk housing portion of the disk tray when the disk tray is housed in the tray housing case. The disk cover includes an annular contact portion at an outer periphery thereof, extending outwardly and continuous in a circumferential direction thereof, a dimension of a width of the annular contact portion is larger than that of a thickness of the disk cover, and the annular contact portion is brought into contact with an entire periphery of the disk housing portion of the disk tray.

Abstract: A media library appliance comprises optical disc handling robotics developed for dual standard slim drives in a vertical orientation. The disc handling robotics comprise a disc transfer assembly for transferring discs to and from a rotatable circular carousel surrounding the optical drives. Each slim drive resides in a separate field-replaceable unit (“FRU”) that can be replaced by a customer in the field without powering down the appliance. The FRU includes various features that allow accurate 3-axis alignment and registration of the optical drive within the appliance.

Abstract: A slider is mounted on a chassis forming a frame so as to be movable in a first direction, and is configured to start a movement in conjunction with an operation in which an optical pickup is switched from an operation mode into a non-operation mode and returns to an initial position. A disk tray is mounted on the chassis so as to be movable in a second direction perpendicular to the first direction, is configured to move in conjunction with the movement of the slider, and is provided with a first groove extending in the first direction. A protrusion is provided in the slider and is engaged with the first groove when the disk tray moves, thereby preventing the disk tray from moving in the second direction. A second groove is provided in the disk tray, communicates with the first groove, and introduces the protrusion into the first groove when the disk tray is moved.

Abstract: An optical data storage device having at least two removable rotatable disks and at least one actuator assembly for writing data onto each side of the disks and reading the data recorded on each side of the disks is provided. The disks are rotated by a dual stator/dual rotor spindle motor. The actuators are driven by a dual coil/dual moving magnet actuator.

Abstract: A windage blocker integrated with a base for a hard disk drive is disclosed. One embodiment provides a cavity portion comprising a planar surface defining an inner bottom surface of the cavity, the cavity portion for receiving an actuator assembly, the actuator assembly comprising a flex cable. The cavity includes at least one windage blocker integrated with the planar surface of the cavity of the base, the windage blocker for reducing detrimental local excitation of an airflow encountering the flex cable.

Abstract: A method and system for providing an energy assisted magnetic recording (EAMR) disk drive are described. The EAMR disk drive includes a slider, at least one EAMR transducer on the slider, and at least one laser coupled with the slider. The slider has a slider back side, a trailing face, and an intersection. The trailing face and the slider back side meet at the intersection. The trailing face makes an angle different from ninety degrees with the slider back side at the intersection. The laser(s) have an optical axis and are optically coupled with the trailing face of the slider. The optical axis is substantially perpendicular to the intersection and parallel to the slider back side.

Abstract: A recording apparatus is provided with: a recording device for recording record data onto a recording medium, the record data including real-time data which is continuously recorded by a certain amount and management data which is to manage at least one of recording and reproduction of the real-time data; a verifying device for verifying whether or not the recorded record data is accurately recorded; and a first controlling device for controlling the verifying device so as to selectively verify whether or not the management data is accurately recorded, out of the recorded record data.

Abstract: This disk chucking apparatus may include: a chuck bass having a plurality of holding portions, a plurality of chuck pins which are inserted in the holding portions to be elastically supported, and protrudes out from the chuck base, an elastic fragment which is arranged to be symmetrical to the chuck pin with respect to the rotation center of the chuck base, and elastically supports a disk together with the chuck pin, and wherein the elastic fragment has an inclined surface inclined with respect to a direction of equipment of the disk, and the inclined surface are increased from smaller radius than the inner radius of the disk to larger radius than the inner radius of the disk. This disk chucking apparatus make it possible to align the centers of the chuck base and disk, and to decrease the force in mounting a disk.

Abstract: A disk chucking apparatus and a disk drive having the same are disclosed. The disk chucking apparatus may include: a chuck base having a plurality of holding portions, a plurality of chuck pins which are inserted in the holding portions such that the chuck pins protrude out from the chuck base, and a plurality of elastic members which elastically support the chuck pins, where each of the elastic members elastically supports a pair of adjacent chuck pins concurrently. When this disk chucking apparatus is utilized, the center of the disk and the center of the chuck base can be aligned with greater ease, since forces can be transferred uniformly to the center of disk.

Abstract: Methods and structures for the fabrication of a thin film, longitudinal and perpendicular recording heads are disclosed. The heads comprise a plurality of embedded static dissipative layers that extend a few nanometers from the air bearing surface. These extended layers are first to contact the magnetic media surface and drain any electric charge buildup before a damaging discharge occurs with read or write head components. The embedded static dissipative layers are particularly useful for use in heads utilizing thermal fly height control systems, which tend to increase the probability of damaging electrical discharge through critical head components.

Abstract: An air bearing slider for a disk drive, which has a read/write head mounted thereon and is lifted from a surface of a disk due to a lifting force generated by the rotation of the disk, and a suspension assembly including the air bearing slider, the air bearing slide includes: a slider body, which has a disk facing surface facing the surface of the disk and a rear surface opposite to the disk facing surface; a positive pressure forming rail part, which protrudes from the disk facing surface of the slider body and generates a positive pressure for lifting the slider body from the surface of the disk; and an air ventilator, which passes obliquely through the slider body from the disk facing surface to the rear surface in an air flow direction and discharges air introduced between the disk and the slider body and particles contained in the air.