Magneto-impedance element, and azimuth sensor, autocanceler and magnetic head using the same
US6232775A · kind A · utility
27Cited by
11References
19Claims
0Family size
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Key dates
| Filing date | Dec 14, 1998 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Dec 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/127
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A magneto-impedance element comprises an alloy composed of at least one of Fe, Co and Ni. The alloy has a mixed texture of an amorphous phase and a fine crystalline phase having an average crystal grain size of 50 nm or less. The magneto-impedance element shows a change in impedance in response to an external magnetic field by applying an alternating current. The magneto-impedance element is applied to an azimuth sensor, an autocanceler, or a magnetic head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.