Magnetic recording medium
US4671993A · kind A · utility
12Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1985 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Oct 21, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising a substrate and a magnetic layer formed on the substrate and comprising an inorganic powder having an average primary particle size of 0.35 .mu.m or less, an angle of repose of 40.degree. or more and a Mors hardness of 5 or more as a reinforcing material, and a magnetic powder, is excellent in wear resistance and durability of the magnetic layer and improves wear and injury of a magnetic head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.