Surface-treated mold and method of producing surface-treated mold
US8657252B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 12, 2010 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jun 30, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C28/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A surface-treated mold that includes a mold, a metal layer that is provided on a surface of the mold and contains at least one metal selected from nickel, chromium, tungsten and brass, and a carbon film that is provided on a surface of the metal layer, wherein the metal layer contains carbon, and the carbon concentration in the metal layer is higher between the boundary with the carbon film and the center of the metal layer than that between the boundary with the mold and the center of the metal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.