| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an accessory capable of producing various colors while keeping luster and texture unique to metal. <P>SOLUTION: By processing valve metal to the shape of the accessory, and generating a transparent oxide layer on the surface of the accessory for finger, the accessory is capable of developing various colors while keeping luster and texture unique to metal by the production of colors by an interferential action of the transparent oxide layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
