Magnetic recording media
US4670333A · kind A · utility
5Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1985 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Apr 25, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium including a nonmagnetic support having a magnetic layer on one side thereof and a backing layer on the opposite side thereof, said backing layer comprising a fatty acid having 12 or more carbon atoms and copper or copper ions. Fatty acid is saturated or unsaturated, and copper is 0.2 micron or less in size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.