A method of forming an oxide film on a surface of a copper alloy, including the steps of providing a copper alloy including copper and an element selected from the group consisting of Mn, Zn, Ga, Li, Ge, Sr, Ag, Ba, Pr and Nd, and diffusing atoms of the element to a surface of the copper alloy so as...http://www.google.com.au/patents/US7782433?utm_source=gb-gplus-sharePatent US7782433 - Copper alloy and liquid-crystal display device
