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Magnetic recording medium having a dimensional variation

專利號
US10867630B2
公開日期
2020-12-15
申請人
Sony Corporation（JP Tokyo）
發(fā)明人
Noboru Sekiguchi; Minoru Yamaga
IPC分類
G11B5/62; G11B5/733; G11B5/706; C23C14/00; G11B5/735
技術(shù)領(lǐng)域
recording,magnetic,layer,medium,in,σmd,δw,nm,or,average
地域： Tokyo

摘要

The average thickness tT of a magnetic recording medium meets the requirement that tT≤5.5 [μm], and the dimensional change amount Δw in the width direction of the magnetic recording medium with respect to the tension change in the longitudinal direction of the magnetic recording medium meets the requirement that 700 ppm/N≤Δw.

說明書

Thereafter, the obtained magnetic recording medium 10 is rewound around the large-diameter core, and subjected to a hardening treatment. Finally, the magnetic recording medium 10 is subjected to a calendering treatment, and then cut into a predetermined width (for example, ?-inch width). The intended long elongated magnetic recording medium 10 is obtained in accordance with the foregoing.

[Configuration of Recording/Reproducing Device]

Next, the configuration of a recording/reproducing device 30 for recording and reproducing on and from the magnetic recording medium 10 which has the above-described configuration will be described with reference to FIG. 5.

The recording/reproducing device 30 has a configuration capable of adjusting the tension applied in the longitudinal direction of the magnetic recording medium 10. Furthermore, the recording/reproducing device 30 has a configuration capable of loading a magnetic recording medium cartridge 10A. Here, for the sake of easy-to-follow explanation, a case where the recording/reproducing device 30 has a configuration capable of loading one magnetic recording medium cartridge 10A will be described, but the recording/reproducing device 30 may have a configuration capable of loading a plurality of magnetic recording medium cartridges 10A.

權(quán)利要求

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