Magnetic recording medium having a dimensional variation
US10867630B2 · kind B2 · utility
9Cited by
1References
30Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 8, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/7358
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.