A recording tape cartridge includes a case that is formed by a first half in which a first peripheral wall is erected around a top plate and a second half in which a second peripheral wall is erected around a bottom plate being joined to each other in a state where the first peripheral wall and the second peripheral wall are butted against each other and that stores a reel on which the recording tape is wound; and a label surface formed by a first half label surface of the first peripheral wall and a second half label surface of the second peripheral wall on a side opposite to a loading direction of the case to a drive device, and a one-dimensional barcode on which individual identification information is recorded is printed only on the second half label surface.

Provided is a recording tape cartridge including: a case that is configured by causing a peripheral wall of an upper case and a peripheral wall of a lower case to abut against each other and accommodates a reel on which a recording tape is wound; a reference surface that is formed on the lower case and serves as a reference in an axial direction of the reel in a case where the case is loaded into a drive device; a noncontact communication medium on which individual information is recorded, the noncontact communication medium being accommodated in the lower case and having a plate shape; a supporting portion that is formed on the lower case and supports the noncontact communication medium such that the noncontact communication medium is disposed while being inclined with respect to the reference surface at an angle of approximately 45 degrees; a position restricting portion that is formed on the lower case and restricts a position of a lower end portion of the noncontact communication medium; and a retaining portion that is formed on the lower case and retains an upper end portion of the noncontact communication medium.

[Solving Means] A tape cartridge according to an embodiment of the present technology includes: a tape reel; a cartridge case; and a reel lock member. The tape reel includes a reel hub having a bottomed cylindrical shape, a tape having been wound on the reel hub. The cartridge case includes a first protruding portion and a plurality of second protruding portions, the first protruding portion protruding toward a center of a bottom portion of the reel hub, the plurality of second protruding portions being arranged around the first protruding portion. The reel lock member is disposed inside the reel hub. The reel lock member includes a first tubular portion and a plurality of second tubular portions, the first tubular portion fitting with the first protruding portion, the plurality of second tubular portions fitting with the plurality of second protruding portions. The reel lock member is movable in a direction of the one axis between a lock position and a lock release position, the reel lock member engaging with the bottom portion of the reel hub at the lock position, engagement between the reel lock member and the bottom portion of the reel hub being released at the lock release position.

A non-contact communication medium according to an embodiment of the present technology is a non-contact communication medium for a recording medium cartridge, including: a circuit component; a support substrate; and an antenna coil. The circuit component has a memory unit capable of storing management information relating to the recording medium cartridge therein. The support substrate supports the circuit component. The antenna coil includes a coil unit that is electrically connected to the circuit component and formed on the support substrate, an inductance value of the coil unit being 0.3 H or more and 2.0 H or less.

A recording tape cartridge includes a case that is formed by a first half in which a first peripheral wall is erected around a top plate and a second half in which a second peripheral wall is erected around a bottom plate being joined to each other in a state where the first peripheral wall and the second peripheral wall are butted against each other and that stores a reel on which the recording tape is wound; and a label surface formed by a first half label surface of the first peripheral wall and a second half label surface of the second peripheral wall on a side opposite to a loading direction of the case to a drive device, and a one-dimensional barcode on which individual identification information is recorded is printed only on the second half label surface.

Provided is a magnetic tape apparatus in which the magnetic tape is run between a winding reel and a cartridge reel in a state where a tension is applied in a longitudinal direction, a maximum value of the tension is 0.50 N or more, the magnetic tape after being run in a state where the tension is applied is wound around the cartridge reel with a tension of 0.30 N or less applied in the longitudinal direction, and the number of recesses existing on a surface of the magnetic layer of the magnetic tape and having an equivalent circle diameter of 0.10 m or more and less than 0.20 m is 100 or more and 2000 or less per an area of 40 m40 m.

Provided is a magnetic tape apparatus in which the magnetic tape is run between a winding reel and a cartridge reel in a state where a tension is applied in a longitudinal direction, a maximum value of the tension is 0.50 N or more, the magnetic tape after being run in a state where the tension is applied is wound around the cartridge reel with a tension of 0.30 N or less applied in the longitudinal direction, and the number of recesses existing on a surface of the magnetic layer of the magnetic tape and having an equivalent circle diameter of 0.10 m or more and less than 0.20 m is 100 or more and 2000 or less per an area of 40 m40 m.

A hub includes a hub body around which a magnetic tape is wound, and a noncontact storage medium provided in the hub body, in which the noncontact storage medium stores hub specification information for specifying the hub body, and the hub specification information is associated with hub change characteristic information indicating a change characteristic of the hub body.

Provided is a cartridge capable of curbing charging of a magnetic tape even in a case where a drive gear is configured of an insulating resin.

The cartridge includes a reel that has conductivity and includes a bottom wall, a magnetic tape that is wound around the reel, and a conductive member that is in contact with the reel, the conductive member having a reel gear on a lower surface of the bottom wall.

Provided is a cartridge capable of curbing charging of a magnetic tape even in a case where a drive gear is configured of an insulating resin.

The cartridge includes a reel that has conductivity and includes a bottom wall, a magnetic tape that is wound around the reel, and a conductive member that is in contact with the reel, the conductive member having a reel gear on a lower surface of the bottom wall.