Magnetic head with magnetoresistive element
US4797766A · kind A · utility
7Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1986 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Nov 12, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/39
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic head for reading information from a magnetic registration medium. Comprises a magnetic yoke (3) having two limbs (3A, 3B) whose free ends constitute pole faces (3A1, 3B1) on either side of a read gap (7). A magnetoresistive element (15A, 15B) provided within the magnetic yoke at a distance from the pole faces is constituted by a layer of Bi provided on the magnetic intermediate yoke (13). Viewed in the longitudinal direction of the read gap, the layer of Bi extends on either side of this gap and at least during operation it is in a constant magnetic field directed transversely to the layer of Bi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.