发明名称 COLORED ARTICLE AND METHOD FOR PRODUCING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a colored article made from iron, which has superior decorativeness and moisture resistance, and to provide a method for producing the same. Ž<P>SOLUTION: A clock hand includes a substrate made from iron and a colored layer formed on the surface of the substrate. The colored layer is a layer of iron oxides formed through the oxidation of the surface of the substrate made from iron. The layer of the iron oxides contains Fe atoms so that a ratio of Fe atoms in FeO to Fe atoms in Fe<SB>2</SB>O<SB>3</SB>is 55/43 to 100/0. As the ratio of the Fe atoms in FeO is larger, the colored article has more excellent moisture resistance. A more preferred range of the ratio of the Fe atoms in FeO to the Fe atoms in Fe<SB>2</SB>O<SB>3</SB>is 65/35 to 100/0, and a further preferred range is 75/25 to 100/0. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010077457(A) 申请公布日期 2010.04.08
申请号 JP20080243756 申请日期 2008.09.24
申请人 SEIKO EPSON CORP 发明人 SUZUKI KATSUMI
分类号 C23C8/18 主分类号 C23C8/18
代理机构 代理人
主权项
地址