Magnetic recording medium
US5514464A · kind A · utility
21Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Apr 11, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/259
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising an undercoat layer formed on one side or both sides of a non-magnetic substrate and a magnetic layer formed on the undercoat layer, characterized in that the undercoat layer contains powders having an average particle size of 0.5 to 5.0 .mu.m and an aspect ratio of 5.0 or more and a magnetic recording medium comprising a magnetic layer formed on a non-magnetic substrate, characterized in that the non-magnetic substrate contains powders having an average particle size of 0.5 to 5.0 .mu.m and an aspect ratio of 5.0 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.