Abstract: A magnetic tape cartridge includes a case in which a magnetic tape is housed, and an NVM of a cartridge memory provided in the case. The NVM stores cartridge information including an identification ID regarding an allowable range of temperature/humidity in using the magnetic tape, an upper limit of a preservation period of the magnetic tape, and an upper limit of a use frequency of the magnetic tape.

Abstract: A PMR (perpendicular magnetic recording) write head includes a main write pole (MP) that is surrounded by magnetic shields, including laterally disposed side shields (SS), a trailing shield (TS) and a leading shield (LS). The leading shield includes a leading-edge taper (LET) that conformally abuts a tapered side of the write pole. The leading-edge shield and the leading-edge taper can be independently recessed in a proximal direction away from an air bearing surface (ABS) plane so that one or the other of them is recessed and the other remains coplanar with the ABS, or both are recessed by independent amounts. In another configuration the LS is not planar but has a recessed portion in a center track region and two surrounding regions that are coplanar with the ABS plane.

Abstract: A head suspension assembly includes a support plate, a wiring member on the support plate, a head mounted on the wiring member and electrically connected to the wiring member, and a piezoelectric element mounted on the wiring member. The piezoelectric element has first and second electrodes electrically connected to the wiring member. The wiring member includes a metal layer, a base insulating layer, a conductive layer, and a cover insulating layer stacked in order. The cover insulating layer includes a pad opening through which the first electrode is connected to the conductive layer with a conducive adhesive therebetween. The base insulating layer includes a first region below the first pad opening and a second region below a side surface of the piezoelectric element. A thickness of the base insulating layer in the second region is less than a thickness of the base insulating layer in the first region.

Abstract: A magnetoresistance effect element and a Heusler alloy in which a state change due to annealing does not easily occur. The element includes a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer positioned between the first ferromagnetic layer and the second ferromagnetic layer, in which at least one of the first ferromagnetic layer and the second ferromagnetic layer is a Heusler alloy in which a portion of elements of an alloy represented by Co2Fe?Z? is substituted with a substitution element, in which Z is one or more elements selected from the group consisting of Al, Si, Ga, Ge, and Sn, ? and ? satisfy 2.3??+?, ?<?, and 0.5<?<1.9, and the substitution element is one or more elements selected from the group consisting of elements having a melting point higher than that of Fe among elements of Groups 4 to 10.

Abstract: The present disclosure includes methods of lapping that include energizing one or more elements that are located proximal to a first magnetoresistive element in a transducer region and generate heat and cause the first magnetoresistive element to selectively expand in the lapping direction relative to one or more other magnetoresistive elements. The present disclosure also includes methods of lapping that use one or more thermal sensors located proximal to the first magnetoresistive element to help control lapping in the lapping direction. The present disclosure includes related lapping systems and sliders.

Abstract: The present disclosure is generally directed towards magnetic recording systems comprising a dual free layer (DFL) read head and a magnetic recording head having stable magnetization. The magnetic recording head comprises a main pole disposed at a media facing surface (MFS), and a plurality of shields, such as a lower leading shield, an upper leading shield, a pair of side shields, and a trailing shield. Each of the shields individually comprises a first leg disposed at and parallel to the MFS and a second leg coupled to the first leg, the second leg being recessed from the MFS. When the kind of magnetization initialization needed by the DFL read head is applied to the magnetic recording head during the manufacturing process, the second leg of each of the shields of the magnetic recording device causes the magnetization directions of the shields to individually switch to a stable state.

Abstract: A disk device includes a housing having a sidewall, the side wall having a first through-hole; a magnetic disk rotatably disposed in the housing and surrounded by the sidewall in a radial direction; a flexible printed circuit electrically connected to the magnetic disk; an insulator closing the first through-hole; a wireless communication device having a first communication antenna inside the housing; and a control board electrically connected to the flexible printed circuit. The control board is supplied with power from outside of the housing via a first connector, and is configured to receive a write command or a read command via the first communication antenna.

Abstract: Aspects of the present disclosure generally relate to a magnetic recording head that includes a main pole, a leading shield, a first side shield disposed on a first side of the main pole, a second side shield disposed on a second side of the main pole, and a trailing shield. The trailing shield is disposed on a trailing side of the main pole. One or more approaches are disclosed to control return-fluxes. In some embodiments, at least one of the upper return pole, the leading shield, the trailing shield, the first side shield, and the second side shield includes a laminate structure having at least a pair of ferromagnetic layers, and a non-magnetic spacer layer disposed between adjacent ferromagnetic layers. In some embodiments, one or more shunts are positioned, such as connecting the leading shield to the upper return pole in order to create circuits to control magnetic flux.

Abstract: The present disclosure is generally related to a tape head comprising a first module and a second module joined together along a seam. The first module comprises a plurality of data heads disposed in a first row parallel to the seam, and the second module comprises a plurality of data heads disposed in a second row parallel to the first row. The first row and the second row are spaced apart a distance of about 50 ?m to about 175 ?m. A via is disposed at a media facing surface (MFS) along a portion of the seam. The via has a length less than a width of the MFS and equal to or greater than a length of the first and second rows of data heads. The via is configured to create a vacuum effect to pull a magnetic media against the media facing surface when the tape head reads and writes data to the magnetic media.

Abstract: A spindle motor includes a base, a shaft arranged on the base and extending in a vertical direction, a stator having a coil defined by a wound conductive wire and arranged on an upper surface of the base, and a rotor rotatably supported around the shaft. The base has a through hole that penetrates the base from the upper surface to a lower surface. The conductive wire is drawn out to the lower surface side through the inside of the through hole. The through hole is sealed by a sealing material. The through hole includes a columnar lower column body and a columnar upper column body. The lower column body is arranged on the lower surface side of the base. A cross-sectional area of the upper column body orthogonal to an axial direction is smaller than a cross-sectional area of the lower column body orthogonal to the axial direction.

Abstract: The magnetic tape cartridge includes a magnetic tape, and a cartridge reel. In the magnetic tape, a minimum winding deviation occurrence load measured after the magnetic tape is rewound around the cartridge reel by applying a tension of 0.40 N in a longitudinal direction of the magnetic tape is 300 N or less.

Abstract: The present disclosure is generally related to a tape drive including a tape head configured to read shingled data on a tape. The tape head comprises a first module head assembly aligned with a second module head assembly. Both the first and second module head assemblies comprises a plurality of data heads. Each data head comprises a write head, a first read head aligned with the write head, a second read head offset from the first read head in both a cross-track direction and a down-track direction, and a third read head offset from the first and/or second read heads in the cross-track and down-track directions. By utilizing three read heads within each data head, data can be read from a tape that has experienced tape dimensional stability, as at least one read head will be near a center of each data track of the tape.

Abstract: According to one embodiment, a disk device includes a first actuator assembly and a second actuator assembly which are respectively supported by a first bearing unit and a second bearing unit to be rotatable about a support shaft. The first bearing unit includes a first sleeve and a ball bearing. The second bearing unit includes a second sleeve and a ball bearing. The first sleeve includes a first end surface opposed to the second sleeve and an annular first step projecting from the first end surface, and the second sleeve includes a second end surface opposed to the first step with a gap and an annular second step projecting from the second end surface. The second step is opposed to the first step and the first end surface with a gap.

Abstract: The magnetic tape includes a non-magnetic support and a magnetic layer including ferromagnetic powder, in which the ferromagnetic powder is ?-iron oxide powder, and a coefficient of variation of particle size of the ?-iron oxide powder in a longitudinal direction of the magnetic layer is 0.50% or more and 5.00% or less.

Abstract: A tape cartridge for use in cleaning a head assembly of a tape drive includes a cartridge housing and a tape that is retained within the cartridge housing. The tape includes a cleaning section having a tape surface and an abrasive coating that is coupled to the tape surface. The tape has a tape thickness of between approximately three microns and seven microns. The abrasive coating has a surface roughness of at least approximately two nanometers.

Abstract: A disk for a magnetic recording apparatus is described. The disk includes a first surface extending along a first plane, a second surface extending along a second plane parallel to the first plane, and a disk thickness between the first surface and the second surface, measured along a first direction substantially normal to the first surface. The disk further includes an edge surface disposed along a perimeter of the disk and between the first surface and the second surface, where the edge surface extends along a third plane substantially perpendicular to the first surface, a first chamfer disposed between the first surface and the edge surface, and a second chamfer disposed between the second surface and the edge surface. In an aspect, a length of the edge surface measured along the first direction may be between 40% and 80% of the disk thickness.

Abstract: A baseplate for a disk drive suspension is provided. The baseplate includes a receiving space at a distal end configured to mate with a spring of a load beam. The receiving space partially extends a length of the baseplate. The baseplate also includes a swage hub at a proximal end and an indented surface surrounding the swage hub. The proximal end is opposite the distal end. The indented surface is at least partially defined by a baseplate support section.

Abstract: A manufacturing method for a magnetoresistive element includes: a step of forming a stack; a step of forming an insulating film to cover the stack; a step of forming an initial magnetic layer to cover the stack and the insulating film so that a thickness of the initial magnetic layer in a first direction is greater than a thickness of the stack in the first direction; a step of forming an organic material film on the initial magnetic layer; and an etching step of etching a part of the initial magnetic layer and the organic material film by ion beam etching so that the initial magnetic layer becomes a pair of magnetic layers.

Abstract: The present disclosure generally relates to a tape embedded drive having a head-gimbal assembly (HGA) and a contact plate. By using a support structure or contact plate beneath the tape, read and write heads can be designed to be narrower than the tape. The support structure or contact plate can stretch or relax the tape so that the spacing between servo tracks on the tape corresponds to the servo to servo spacing on the head. HGAs, which are narrower than the tape, can fly over the tape and read data from and write data to the tape. The HGA can have a single head or multiple heads. Additionally, multiple independent head assemblies can also be used for reading from and writing to the same tape.

Abstract: The tractor and trailer radio with. CD Player is the only product of its kind that has the capability of functioning as an alarm clock, a speaker, a charger, and a radio, yet showcases as an automotive small-scale accessory. This avant-garde product is uniquely designed with durable materials to ensure long term sustainability, and includes cutting-edge features such as wireless charging, illuminated cab lights and interchangeable volume and tune headlights for any AM/FM radio with the station numbers in the grill.