Magnetic recording medium
US11621020B2 · kind B2 · utility
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2References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 6, 2018 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Jan 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/7379
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium includes a flexible and elongated substrate, a soft magnetic layer having an average thickness of 10 nm or more to 50 nm or less, and a recording layer. The soft magnetic layer is disposed between the substrate and the recording layer, and a difference in Young's modulus between the magnetic recording medium and the substrate in a longitudinal direction of the substrate is 2.4 GPa or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.