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US 2021/0063968 A1Published application
Watch component and watch
AssigneeSeiko Epson Corporation
InventorDaiki FURUSATO
Life of this patent
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Abstract
A watch component includes a base material, and a decorative film including a color absorption film and a color adjustment film, an arithmetic mean roughness Ra of a surface, on which the decorative film is disposed, of the base materialis equal to or greater than 0.02 μm and equal to or less than 0.1 μm, a film thickness of the decorative film is equal to or greater than 0.25 μm and equal to or less than 1.0 μm, and a ratio of the film thickness of the decorative film to the arithmetic mean roughness Ra of the surface is equal to or greater than 2.5 and equal to or less than 25.
Claims20
A watch component, comprising:
- a base material including a surface having an arithmetical mean roughness Ra that is equal to or greater than 0.02 μm and equal to or less than 0.1 μm;
- and
- a decorative film disposed at the surface and having a thickness equal to or greater than 0.25 μm and equal to or less than 1.0 μm and moreover including a color absorption film and a color adjustment film, wherein
- a ratio of the film thickness of the decorative film to the arithmetical mean roughness Ra of the surface is equal to or greater than 2.5 and equal to or less than 25.
1 more element
Dependencies are inferred from the claim text.