Supersensitive magnetoresistive sensor for high density magnetic read head
US4047236A · kind A · utility
13Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 1975 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | May 9, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/39
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high density magnetic read head is designed to yield an increased read signal. The width of the read head is reduced by folding a magnetoresistive sensor strip into U-shaped loops. The loops are folded one upon another in a plane perpendicular to the plane of the storage medium. By folding the sensor strip, the shape anisotropy of the sensor is increased and the single domain condition of the sensor in the desired direction is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.