Magnetic recording media
US4713293A · kind A · utility
14Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1985 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Jul 30, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31949
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising a magnetic layer containing a magnetic metal powder, a fatty acid and an ester thereof, and wherein the surface of said magnetic metal powder is pre-treated with a surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.