Magnetic recording medium
US4455345A · kind A · utility
29Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1983 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | Jan 11, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium is disclosed. The medium is comprised of a support having a magnetic layer coated thereon. The magnetic layer is comprised of ferromagnetic metal powder and a binder. The ferromagnetic metal powder has a specific surface area of 35 to 70 m.sup.2 /g, a saturation magnetization (.sigma..sub.s) of 120 to 160 emu/g and a metal content of 75 to 98 wt %. The magnetic recording medium has a high S/N ratio, particularly a high video S/N ratio and has stable magnetic properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.