Plated article and fastener stringer
BD1007137BActive Publication Date: 2026-09-06YKK CORP
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Patent Information
- Application Number
- BD2023274
- Authority / Receiving Office
- BD · BD
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-11-09
- Publication Date
- 2026-09-06
- Estimated Expiration
- 2039-11-09
Abstract
Plated article includes a base member (83) including at least one base member metal element; and a plating layer (84) formed on the base member (83). The plating layer (84) includes first and second plating layers (81,82) formed in this order on the base member (83). Each of the first and second plating layers (81,82) includes at least a first metal element of plating layer that is a same metal element as the base member metal element and a second metal element of plating layer that is a different metal element than the base member metal element. Element ratio of the first metal element of plating layer continuously decreases as being away from the base member (83) across a total thickness of at least the first and second plating layers (81,82). Element ratio of the second metal element of plating layer continuously increases as being away from the base member (83) across the total thickness of at least the first and second plating layers (81,82). The second plating layer is visually distinguishable from the first plating layer (81) as a layer containing larger grains than grains of the first plating layer (81) in a first TEM (Transmission Electron Microscope) image.
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