发明名称 |
Method for making decorative articles |
摘要 |
<p>A decorative article with a whitish gold color that can retain an exceptionally beautiful appearance over a long period of time, a surface processing method manufacturing such decorative articles, and a timepiece having such decorative parts. The surface processing method has a step (2b) for forming a primary coat (40) on at least part of the surface of base material (2), and a step (2c) for forming a film (3) composed of a Au-Pd-Fe-In alloy containing 0.1 to 10 wt% Pd, 0.1 to 8 wt% Fe, and 0.1 to 10.0 wt% In using a dry plating method. The primary coat (40) is a buffer layer for buffering the potential difference between the base material (2) and film (3). The film (3) is preferably formed in a dry plating method using multiple targets of different metal compositions. <IMAGE></p> |
申请公布号 |
EP1331282(B1) |
申请公布日期 |
2008.11.19 |
申请号 |
EP20030250281 |
申请日期 |
2003.01.16 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
KAWAKAMI, ATSUSHI;OBI, YOSHIYUKI;TSUKAMOTO, YUZURU |
分类号 |
C23C14/20;C23C14/02;C23C14/16;C23C14/34;C23C30/00 |
主分类号 |
C23C14/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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