Surface type heating element having controlled oxide layer and manufacturing method thereof
US12273966B2 · kind B2 · utility
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3References
10Claims
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Key dates
| Filing date | Aug 28, 2023 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Aug 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/017
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Discussed is a surface type heating element including a surface type heating element layer including NiCr alloy powders, necks between powder particles of the NiCr alloy powders, and passivation oxide layers formed on a surface of the NiCr alloy powders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.