Patent ID: 8043708

Claim:
A surface-treated metal, comprising: a metal base material treated with an organic SiO 2 ; and an inorganic-organic composite film provided on at least a portion of a surface of the metal base material treated with the organic SiO 2 , wherein the inorganic-organic composite film comprises: a siloxane bond as a main bond in a main skeleton, at least one of an ether bond or an amino bond in bonds of at least one of the main skeleton or a side chain, at least one organic group which includes at least one of an alkyl group having approximately 1 to 12 carbon atoms, an aryl group, a carboxyl group, an amino group, or a hydroxyl group, at least one phenyl group, and at least one or more of oxides having at least one or more of Cu, Fe, Mn, Cr or Co as constituent components, carbon black, graphite powder, or carbon black subjected to a graphitization treatment, wherein a percentage of an organic component in the inorganic-organic composite film to an overall composition of the inorganic-organic composite film is at least 0.5% by mass and at most 50% by mass, and wherein a ratio of a content of the ether bond and the amino bond in the bonds in the inorganic-organic composite film to a content of the siloxane bond is 0.01 or more and 0.5 or less.