Method for improving coercive force of epsilon-type iron oxide, and epsilon-type iron oxide
US9633770B2 · kind B2 · utility
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Key dates
| Filing date | Aug 8, 2016 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Aug 8, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/761
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An epsilon-type iron oxide having an Fe-site that is substituted with a platinum group element, provided that Fe of a D-site of the epsilon-type iron oxide is not substituted with the platinum group element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.