Magnetic transducer using magnetoresistance effect
US4663684A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Jan 25, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/399
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a magnetic transducer using a magnetoresistance effect, comprising a magnetoresistive film, a hard magnetic film for applying a transverse biasing magnetic field thereto, and a conductive film through which current for applying the transverse biasing magnetic field to the magnetoresistive film flows. The conductive film may be either in electrical contact with or in electrical insulation from the magnetoresistive film. In this magnetic transducer, even when the heights of the respective constituents have changed, the transverse biasing magnetic field to be applied does not change considerably, and an optimum bias field strength is readily attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.