Magnetic read head with magneto-resistance effect
US5251088A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1991 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Jul 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4969
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic read heads with magneto-resistance effect of the multilayer type, are provided in a new arrangement making it possible in particular to facilitate a collective arrangement of these heads. Each read head comprises a magneto-resistance element formed by a sensitive magnetic layer superposed on a stable magnetic layer. Each read head comprises a magnetic circuit in a ring opened by an air gap, the sensitive magnetic layer being inserted in the magnetic circuit in a ring, the stable magnetic layer being outside the ring of the magnetic circuit. The arrangement of the magnetic read heads is particularly adapted for reading high density magnetic storage media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.