A magnetic tape in which a vertical switching field distribution SFD of the magnetic tape is 1.5 or less, and in an environment with a temperature of 32° C. and a relative humidity of 80%, a frictional force F.sub.45° on the surface of the magnetic layer with respect to an LTO8 head measured at a head tilt angle of 45° is 4 gf to 15 gf, and a standard deviation of a frictional force F on the surface of the magnetic layer with respect to the LTO8 head measured at each of head tilt angles of 0°, 15°, 30°, and 45° is 10 gf or less.

A magnetic tape in which a vertical switching field distribution SFD of the magnetic tape is 1.5 or less, and in an environment with a temperature of 32° C. and a relative humidity of 80%, a frictional force F.sub.45° on the surface of the magnetic layer with respect to an LTO8 head measured at a head tilt angle of 45° is 4 gf to 15 gf, and a standard deviation of a frictional force F on the surface of the magnetic layer with respect to the LTO8 head measured at each of head tilt angles of 0°, 15°, 30°, and 45° is 10 gf or less.

A magnetic tape in which a tape thickness of the magnetic tape is 5.2 μm or less, and in an environment with a temperature of 23° C. and a relative humidity of 50%, an AlFeSil abrasion value.sub.45° of a surface of the magnetic layer measured at a tilt angle of 45° of an AlFeSil prism is 20 μm to 50 μm, a standard deviation of an AlFeSil abrasion value of the surface of the magnetic layer measured at each of tilt angles of 0°, 15°, 30°, and 45° of the AlFeSil prism is 30 μm or less, and the tilt angle of the AlFeSil prism is an angle formed by a longitudinal direction of the AlFeSil prism and a width direction of the magnetic tape.

A magnetic tape in which a tape thickness of the magnetic tape is 5.2 μm or less, and in an environment with a temperature of 23° C. and a relative humidity of 50%, an AlFeSil abrasion value.sub.45° of a surface of the magnetic layer measured at a tilt angle of 45° of an AlFeSil prism is 20 μm to 50 μm, a standard deviation of an AlFeSil abrasion value of the surface of the magnetic layer measured at each of tilt angles of 0°, 15°, 30°, and 45° of the AlFeSil prism is 30 μm or less, and the tilt angle of the AlFeSil prism is an angle formed by a longitudinal direction of the AlFeSil prism and a width direction of the magnetic tape.

A noncontact storage medium that is mounted in a magnetic tape cartridge includes an IC chip that is connected to an antenna to be coupled to a communication destination by electromagnetic induction through a magnetic field applied from the communication destination, and performs communication with the communication destination through the magnetic field, and the IC chip corresponds a plurality of communication standards, and performs the communication selectively using the plurality of communication standards.

A noncontact storage medium that is mounted in a magnetic tape cartridge includes an IC chip that is connected to an antenna to be coupled to a communication destination by electromagnetic induction through a magnetic field applied from the communication destination, and performs communication with the communication destination through the magnetic field, and the IC chip corresponds a plurality of communication standards, and performs the communication selectively using the plurality of communication standards.

The magnetic recording medium includes a non-magnetic support; and a magnetic layer containing a ferromagnetic powder, in which the magnetic layer includes an abrasive, the abrasive is a carbide, an average primary particle diameter of the abrasive is 10 nm or more and 100 nm or less, and in an electron microscope image of a surface of the magnetic layer, assuming that a total area occupied by the abrasive is 100%, a ratio of an area occupied by the abrasive present in an aggregated state having a maximum Feret diameter of 0.2 .Math.m or more is 50% or more.

The present disclosure generally relates to a tape utilized with a tape drive including a tape head. The tape comprises a plurality of writeable portions configured to store data and a plurality of non-writeable portions that are unable to store data. The writeable portions comprise one or more materials selected from the group consisting of: Ru, Pt, Ta, and Co, and the non-writeable portions comprise a different material than the writeable portions. Each writeable portion is defined between two non-writeable portions, and each writeable portion has a greater area on the tape than each non-writeable portion. The non-writeable portions are utilized during stop-start and turn-around operations of the tape head, are configured to lubricate the tape head, clean the tape head, and remove debris from the tape head. The non-writeable portions enable improved performance of the tape drive while reducing a cost of the tape.

The present disclosure generally relates to a tape utilized with a tape drive including a tape head. The tape comprises a plurality of writeable portions configured to store data and a plurality of non-writeable portions that are unable to store data. The writeable portions comprise one or more materials selected from the group consisting of: Ru, Pt, Ta, and Co, and the non-writeable portions comprise a different material than the writeable portions. Each writeable portion is defined between two non-writeable portions, and each writeable portion has a greater area on the tape than each non-writeable portion. The non-writeable portions are utilized during stop-start and turn-around operations of the tape head, are configured to lubricate the tape head, clean the tape head, and remove debris from the tape head. The non-writeable portions enable improved performance of the tape drive while reducing a cost of the tape.

A magnetic tape device; a magnetic tape; and a magnetic tape cartridge, in which the magnetic tape is caused to run between a winding reel and a cartridge reel in a state where a tension is applied in a longitudinal direction and a maximum value of the tension is 0.50 N or more, and the magnetic tape after running in a state where the tension is applied is wound around the cartridge reel by applying a tension of 0.40 N or less in the longitudinal direction of the magnetic tape, and the number of recesses having an equivalent circle diameter of 0.20 μm to 0.50 μm existing on a surface of the magnetic layer of the magnetic tape is 10 to 500 per 40 μm×40 μm area.