Methods of preparing glass substrates for magnetic media
US6532770B2 · kind B2 · utility
22Cited by
27References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | May 22, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Described are substrates for magnetic media which have excellent surface properties as prepared directly from a slot drawdown glass sheet forming process. The substrate blanks cut directly from the glass sheet, as drawn, require little or no surface treatment for use as substrates for magnetic media, particularly hard disk drives. Also described are methods for preparing such substrates and methods for preparing magnetic media therefrom. Further described are the substrates and magnetic media prepared by such processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.