The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2013
Filed:
May. 26, 2009
Naoya Masahashi, Sendai, JP;
Yoshiteru Mizukoshi, Sendai, JP;
Naofumi Ootsu, Sendai, JP;
Yu Matsuda, Sendai, JP;
Satoshi Senboshi, Sakai, JP;
Naoya Masahashi, Sendai, JP;
Yoshiteru Mizukoshi, Sendai, JP;
Naofumi Ootsu, Sendai, JP;
Yu Matsuda, Sendai, JP;
Satoshi Senboshi, Sakai, JP;
Tohoku University, , JP;
Osaka Prefecture University, , JP;
Abstract
It has been demanded to produce titanium dioxide having an excellent photocatalytic activity and an excellent super-hydrophilic property by a simple procedure suitable for the production on an industrial scale. Rutile-type titanium dioxide having an excellent photocatalytic activity can be produced by carrying out the anodic oxidization of the surface of a base material comprising titanium or a titanium alloy by applying a voltage (e.g., a high voltage) or carrying out the anodic oxidation of the surface of the base material under high current density conditions. Further, a film is produced on the surface of the base material by the anodic oxidation technique by applying a voltage or the anodic oxidization technique under high current density conditions, and the film is subjected to heat treatment, thereby producing rutile-type titanium dioxide having excellent crystallinity.