Magnetic tape having characterized magnetic layer and magnetic tape device
US10347280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2017 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Jun 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/733
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic tape includes a non-magnetic layer containing non-magnetic powder and a binder on a non-magnetic support; and a magnetic layer containing ferromagnetic powder and a binder on the non-magnetic layer. The total thickness of the non-magnetic layer and the magnetic layer is equal to or less than 0.60 μm. The magnetic layer includes a timing-based servo pattern. One or more components selected from a fatty acid and a fatty acid amide are included in at least the magnetic layer. The C—H derived C concentration calculated from the C—H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is equal to or greater than 45 atom %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.