Quarternary amorphous magnetic alloy thin film and magnetic head including same
US4943883A · kind A · utility
12Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1988 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Nov 2, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3109
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin film magnetic head provided with a first and a second thin film made of a magnetic material, disposed so as to form a closed magnetic circuit; and an intermediate film made of a non-magnetic material, disposed between the first and the second thin films so as to form a magnetic gap at a part of the magnetic circuit; wherein at least one of the first and the second thin films is made of a quaternary amorphous magnetic alloy, whose principal component is cobalt and which contains hafnium, tantalum and palladium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.