Magnetic read/write head having a writing-compensated magnetoresistant element
US5504643A · kind A · utility
5Cited by
17References
7Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Aug 30, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Aug 30, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3967
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic read/write head having a writing-compensated magneto-resistant element. In the invention, the head includes, beneath a magnetoresistant element (MR), a conductor element (40) and preferably an additional magnetic layer (44) perforated by an opening (46). The conductor element (40) is in series with the writing coil and connected in such a way that, in the magnetoresistant element, the magnetic field resulting from the passage of the current in the conductor element opposes the writing leakage field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.