Oriented magnetic medium on a nonmetallic substrate
US6670032B2 · kind B2 · utility
3Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Jan 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention provides a disk which has an in-plane oriented magnetic recording layer on a glass, ceramic, or other nonmetallic substrate and a method for making the disk. A thin layer of material is deposited on the substrate to form a texture stop layer. A texturable layer is then deposited on the texture stop layer. This texturable layer is textured before the magnetic layer is deposited. The disk combines all the advantages of a glass or ceramic substrate along with the advantages of an oriented magnetic medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.