Magnetic record member and process for manufacturing the same
US4069360A · kind A · utility
51Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Oct 22, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic storage means which may be a disc having a magnetic storage layer coated with a protective layer. The protective layer, which is preferably an inorganic oxide material, protects the magnetic storage layer from corrosion. A lubricant is applied to the protective layer and serves to reduce wearing due to frictional drag between the disc and a cooperating magnetic head (or heads). The lubricant is oriented so as to make very good adherence with the oxide sublayer and thereby prevent removal of the lubricant through continued use and/or cleaning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.