Abstract: In a gimbal dual stage actuated suspension, the gimbal including the head slider is moment-balanced about the load beam dimple thus reducing sway mode gain. In a ring gimbal suspension the T-limiter can be removed and replaced with an extended gimbal tongue including the same layers of insulating material and copper that are part of flexure's flexible circuit, thus allowing the moment-balancer to be formed integrally with the rest of the flexure as part of the standard flexure manufacturing process. Additionally, the traces of the flexible circuit can be made to run at least partially underneath the head slider and approach the slider bond pads from the proximal side of the suspension, thereby shifting weight toward the proximal side.

Abstract: A thin film magnetic head has a main magnetic pole layer; a first trailing shield that is positioned at the trailing side of the main magnetic pole layer, and that is close to the main magnetic pole layer; and a second trailing shield that is positioned at the trailing side of the first trailing shield, and that continues to the first trailing shield. An end surface of the second trailing shield positioned at the back side in the height direction has a first end side positioned at a medium opposing surface side, and a second end side positioned at the further back side in the height direction than the first end side, and at the trailing side closer than the first end side. An angle formed by a plane including the first end side and the second end side and a plane parallel to both the height direction and the track width direction is 30 degrees to 60 degrees.

Abstract: Embodiments disclosed herein generally relate to a head slider within disk drive data storage devices. A head slider comprises a head body having a leading edge, a trailing edge and an ABS. The ABS has a leading portion and a trailing portion, the trailing portion having a tail section disposed adjacent the trailing edge. The head body has three surfaces recessed from the ABS: a first surface disposed a first vertical distance, a second surface disposed a second vertical distance that is greater than the first vertical distance, and a third surface disposed a third vertical distance that is greater than the second vertical distance. A first plateau disposed at the third surface is bound between a second plateau at the first surface and a trailing pad of the tail section. Between the first plateau and the trailing pad are one or more notches disposed at the first surface.

Abstract: In a disk drive device, a guide section is formed to protrude from the front surface of a guide top and face a front panel of a frame member with a detection pin therebetween. The guide section forms an inclined side that faces a free end of the detection pin with a gap therebetween. If a disk is shifted from the middle of a disk insertion slot in the right-left direction and is inserted into the disk insertion slot, the detection pin is flexibly deformed by a disk insertion force and is brought into pressure contact with the inclined side. A component force is exerted on the detection pin in a direction in which the detection pin is moved away from the middle of the disk insertion slot in the width direction. The component force smoothly rotates a detection lever from an initial position to an operating position.

Abstract: A disk drive mounting assembly is configured to mount a disk drive. The disk drive mounting assembly can include a carrier configured to receive a disk drive and a retainer configured to be coupled to the disk drive and retain the disk drive in the carrier. The retainer can include a main body, a head extending from the main body, and two wings extending from two opposite sides of the main body and configured to be coupled to the disk drive. The head has a distal end spaced from the main body and the wings. The head has a distal end moving toward the main body when the head is pressed, and has the end moving away from the main body retain the disk drive in the carrier when the head is released.

Abstract: A tape cleaning device includes a blade that, while touching a recording tape that is running, scrapes foreign bodies from the recording tape; a roller that touches the recording tape and rotates along with the running of the recording tape, the foreign bodies scraped off by the blade being transferred to the roller; and a removal mechanism that removes the foreign bodies that have been transferred to the roller from the roller.

Abstract: A PZT microactuator such as for a hard disk drive has a restraining layer on its side that is opposite the side on which the PZT is mounted. The restraining layer is a stiff material. The restraining layer reduces bending of the PZT as mounted and hence increases effective stroke length, or reverses the sign of the bending which increases the effective stroke length of the PZT even further. For simplicity of construction and assembly to the suspension, the PZT microactuator may be a multi-layer PZT with the top layer being unpoled or otherwise inactive PZT material, and having a wrap-around electrode so that the microactuator can be mechanically and electrically bonded to the suspension using a single adhesive dispense and cure step.

Abstract: A stator includes a stator core and a plurality of coils. The stator core includes a core-back, a plurality of teeth portions, and a plurality of lug portions. Each of the plurality of teeth portions includes a coil winding portion and a tip end portion. The core-back includes a slanted portion. An axial position of a magnetic center of the rotor magnet radially outward of the stator overlaps with an axially extending range of the tip end portion. A thickness of the slanted portion in a direction perpendicular or substantially perpendicular to an upper surface of the slanted portion is smaller than an axial thickness of the coil winding portion.

Abstract: A hard disc assembly includes a box and a hard disc body slidably mounted to the box. The box comprises a driving unit and a pivoting pole. The hard disc body comprises a disc member and a magnetic arm. A magnetic head is located on the magnetic arm and contacts the disc member. The magnetic arm is connected to the pivoting pole of the driving unit. The driving unit is configured to move the magnetic arm on the disc member. The magnetic head is configured to access data in the disc member when the disc member rotates. The magnetic head remains in contact with the disc member when the disc member stops rotating.

Abstract: A novel information storage device is disclosed and claimed. The information storage device includes a device housing with a generally rectangular bay to accommodate a disk drive. The generally rectangular bay includes a base portion and a plurality of side portions. The information storage device further includes a damping insert sheet disposed between the disk drive and the base portion. The damping insert sheet has a plurality of elastomeric cushions, for example with a cushion thickness in the range 0.5 mm to 10 mm, and a spanning sheet, for example having a sheet thickness in the range 0.02 mm to 0.35 mm. Each of the plurality of elastomeric cushions is attached to the spanning sheet. Each of the plurality of elastomeric cushions contacts and is compressed between the generally rectangular bay and the disk drive.

Abstract: Recording heads for data storage systems are provided. Recording heads illustratively include a write pole, a bumper, a dielectric layer, and a surface. In some embodiments, a portion of the surface includes portions of the write pole, bumper, and dielectric layer. The write pole, bumper, and dielectric layer are illustratively made from materials that have polishing rates. In some embodiments, the polishing rate for the write pole material is more similar to the polishing rate for the bumper material than it is to the polishing rate for the dielectric layer material.

Abstract: A tape head, adapted for reading and/or writing to a magnetic tape, has a tape-bearing surface and is configured to urge a magnetic tape against the bearing surface, in operation. The bearing surface includes a transducer area, having at least one transducer that is a read and/or write element, designed for reading and/or writing to a magnetic tape, and a structured area adjacent to the transducer area, comprising a periodic array of topographic features, the topographic features configured within the structured area to determine a minimal distance between the transducer area and a tape.

Abstract: A tolerance ring is formed of a plate member, in a ring shape that is substantially circular along a predetermined direction, and provided with a plurality of protrusions projected radially in a circumferential direction, wherein an even number of the protrusions are arranged along the circumferential direction, and a plurality of straight lines that pass through a central portion of the plurality of protrusions and a center of a circle that circumscribes the tolerance ring cross one another.

Abstract: In one embodiment, a read sensor includes an antiferromagnetic (AFM) pinning layer, the AFM pinning layer being recessed from a media-facing surface in an element height direction to a first height, a first antiparallel pinned multilayer (AP1) positioned above the AFM pinning layer and extending beyond the first height to the media-facing surface, a second antiparallel pinned layer (AP2) positioned above the AP1 and extending beyond the first height to the media-facing surface, and a free layer positioned at the media-facing surface above the AP2 and extending from the media-facing surface in the element height direction to a second height, wherein the element height direction is perpendicular to the media-facing surface, wherein the AP1 and the AP2 are not recessed from the media-facing surface, and wherein the AFM, the AP1, and the AP2 extend beyond the free layer in the element height direction beyond the second height.

Abstract: Described herein is a magnetic storage device that includes at least one magnetic disk, at least one armature rotatably movable relative to the at least one magnetic disk, and a transducer head coupled to the armature. The magnetic storage device further includes a stiffener that is coupled to the armature. The stiffener includes at least one arm having a flexible printed circuit board (FPCB) portion and a deflection portion angled relative to the FPCB portion. The magnetic storage device also includes an FPCB coupled to the stiffener.

Abstract: A stator includes a stator core and a plurality of coils. The stator core includes a core-back and a plurality of teeth portions. Each of the teeth portions includes a coil winding portion, a tip end portion, and an increased width portion. The tip end portion has a circumferential width larger than a smallest width of the coil winding portion. The increased width portion has a circumferential width larger than the smallest width of the coil winding portion. The increased width portion includes a slanted portion extending radially outward and upward. An axial position of a magnetic center of the rotor magnet positioned radially outward of the stator overlaps with an axially extending range of the tip end portion. A thickness of the slanted portion in a direction perpendicular to an upper surface of the slanted portion is smaller than an axial thickness of the coil winding portion.

Abstract: An apparatus can be generally directed to a magnetic stack having a magnetically free layer positioned on an air bearing surface (ABS). The magnetically free layer can be biased to a predetermined magnetization in various embodiments by a biasing structure that is coupled with the magnetically free layer and positioned distal the ABS.

Abstract: An optical disc device includes: a loader body having a guiding recess formed of a linear portion and a sloped portion; a traverse chassis mounted in the loader body and having a protrusion that is guided along the recess; a turntable mounted on the traverse chassis, for mounting the optical disc; and a clamper which clamps the optical disc between the clamper and the turntable when the traverse chassis ascends relative to the loader body to a clamp position, in which when the traverse chassis is at a position lower than the clamp position, the protrusion is guided along the recess, and when the traverse chassis is at the clamp position, the protrusion is positioned inside the sloped portion.

Abstract: A magnetoresistive sensor having employing a Mn containing Huesler alloy for improved magnetoresistive performance in a structure that minimizes corrosion and Mn migration. The sensor can be constructed with a pinned layer structure that includes a lamination of layers of Co2MnX and CoFe, where X is Al, Ge or Si. The Co2MnX can be sandwiched between the layers of CoFe to prevent Mn migration into the spacer/barrier layer. The free layer can also be constructed as a lamination of Co2MnX and CoFe layers, and may also be constructed so that the Co2MnX layer is sandwiched between CoFe layers to prevent Mn migration.

Abstract: An electrically isolated tape guide that includes a tape roller having spaced apart flanges extending out from the tape roller for passing magnetic tape between the flanges, and an electrically non-conductive pin having a first end coupled to a center opening of the tape roller to allow the tape roller to rotate about the pin and a second end for coupling to a chassis of a tape drive.