Method for producing an oxide magnetic material
US7070732B2 · kind B2 · utility
0Cited by
6References
5Claims
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Key dates
| Filing date | Sep 11, 2002 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Aug 11, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12951
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An oxide magnetic material comprising main constituents including Fe2O3, ZnO, CuO and NiO. Y2O3 of 0.003 to 0.021 wt % and-ZrO2 of 0.06 to 0.37 wt % are included in main constituents with respect to all amounts. It is also preferable that Si of 0.010 to 0.0112 wt % is included in main constituents with respect to all amounts. Further, it is also preferable that Y2O3 of 0.001 to 0.011 wt % , ZrO2 of 0.031 to 0.194 wt %, and Si of 0.010 to 0.056 wt % are included in main constituents with respect to all amounts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.