Longitudinal recording medium with a dual underlayer
US6303217A · kind A · utility
76Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1998 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Oct 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium having a dual underlayer structure is described. The underlayer structure is composed of a first underlayer of chromium and a second underlayer of a chromium alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.