Flux guide type device, head having the same, and drive
US6961222B2 · kind B2 · utility
5Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Apr 14, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flux guide type includes a magnetoresistive device for reading a signal flux, and a flux guide for transmitting the signal flux to the magnetoresistive device. The flux guide includes a laminated film that includes a ferromagnetic layer, a non-magnetic layer and a ferromagnetic layer in this order, and the two ferromagnetic layers in the flux guide have antiparallel directions of magnetization with respect to the non-magnetic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.