Methods of making a component with variable magnetization and related components
US10748687B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 12, 2018 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Aug 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2003/106
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of forming a component having a variation in saturation magnetization is presented. The method includes selectively diffusing nitrogen into a metallic component of a masked metallic component by exposing the masked metallic component to a nitrogen-rich atmosphere. The masked metallic component includes a patterned oxide layer formed on a surface of the metallic component, and the patterned oxide layer includes an oxide of a metal present in the metallic component. A related component is also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.