Magnetoresistance effect reproduction head
US5808843A · kind A · utility
20Cited by
10References
10Claims
0Family size
Assignee
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Key dates
| Filing date | May 29, 1992 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | May 29, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/313
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetoresistance effect reproduction head which comprises a magnetoresistive layer having a central sensing region and an end domain control region and formed into a thin film of a ferromagnetic material, a hard magnetic layer overlapping with the end domain control region in direct contact therewith and formed into a thin film of a hard magnetic material, a magnetic field and a longitudinal magnetic bias field by ferromagnetic exchange coupling is generated for maintaining the central sensing region of the magnetoresistive layer in single domain state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.