Thin film magnetoresistive head
US4164770A · kind A · utility
37Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1977 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Sep 21, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flux sensitive magnetic head is disclosed wherein a thin single domain magnetic film coated on a non-conductor bridges the head gap. A magnetic bias is applied to the hard axis of the film; and flux entering the gap causes the resistivity of the film to vary about a resistance reference established by the bias. The resistance variation is converted to a useful signal corresponding to the flux entering the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.