| 摘要 |
Disclosed is a recording tape cartridge for which the communications performance of the security tag is not reduced at least when the recording tape cartridge case is stacked on top of other recording tape cartridge cases. The recording tape cartridge (10) comprises a case (12), which houses a reel (20) around which a recording tape (T) is wound and a security tag (110) that can transmit and receive externally, which is located inside the case (12). The security tag (110) is columnar with a coil formed by wire material wound around the outer peripheral surface of a magnetic core. The security tag (110) is disposed within the case (12) in a manner such that security tags (110) within cases (12) of other recording tape cartridges (10) and the axis (P) are not superposed.
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