Nippon Steel Sumitomo Metal Corporation

Nippon Steel Corporation

Mituyuki Hasegawa

Hiroshi Shimizu

Michio Kaneko

Kiyonori Tokuno

Kazuo Yamagishi

Asami Shimomura

Ruriko Yokoyama

The provision of beautiful colored titanium which is excellent in adhesion of the pure titanium or a titanium alloy with the base material, is excellent in photocatalytic activity, and further is excellent in design properties and a method of production of the same which is excellent in productivity and uses an anodic oxidation process is made the object. A titanium-based material having visible light response and excellent in photocatalytic activity characterized in that the material has pure titanium or titanium alloy as a base material, a thickness of a titanium oxide layer which is present on its surface is 0.1 &#x3bc;m to 5.0 &#x3bc;m in range, said titanium oxide layer contains anatase-type titanium dioxide and titanium bonded with hydroxy groups, and further said titanium oxide layer contains nitrogen and carbon respectively in 0.5 to 30 mass %.

Titanium-based material having visible light response and excellent in photocatalytic activity and method of production of same

Growing community of inventors

Tsubame, Japan

Mituyuki Hasegawa