Magnetic recording tape media having low abrasivity and reliable media performance
US7364809B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 1, 2003 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Jun 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31826
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium including a non-magnetic substrate and a magnetic coating. The non-magnetic substrate defines a front side and a backside. The magnetic coating is formed over the front side and is characterized by an Abrasivity Index of not greater than 350 microinches. In one preferred embodiment, the magnetic coating includes a lower layer formed on the front side of the substrate, and an upper layer formed over the lower layer. In this regard, the upper layer includes a magnetic metal particle dispersed in a binder and otherwise provides the Abrasivity Index. In another embodiment, the magnetic recording medium is a DLT tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.