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:
Dec. 10, 2013
Filed:
Oct. 29, 2009
Kazuhito Hashimoto, Tokyo, JP;
Hiroshi Irie, Tokyo, JP;
Huogen Yu, Tokyo, JP;
Kazuhide Kamiya, Tokyo, JP;
Koichi Takahama, Amagasaki, JP;
Shinichiro Miki, Osaka, JP;
Mitsuo Yaguchi, Ibaraki, JP;
Kazuhito Hashimoto, Tokyo, JP;
Hiroshi Irie, Tokyo, JP;
Huogen Yu, Tokyo, JP;
Kazuhide Kamiya, Tokyo, JP;
Koichi Takahama, Amagasaki, JP;
Shinichiro Miki, Osaka, JP;
Mitsuo Yaguchi, Ibaraki, JP;
The University of Tokyo, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A divalent copper salt and/or trivalent iron salt is supported on a surface of a metal ion-doped titanium oxide obtained by doping titanium oxide with metal ions to give a metal ion-doped titanium oxide with a valence band potential of 3 V or more (vs. SHE, pH=0) and a bandgap of 3 V or less between the valence band and an energy level of electrons excited from the valence band (including conduction band minimum potential and isolated potential). The metal ion-doped titanium oxide can be made to exhibit strong oxidative decomposition activity when irradiated with visible light based on the fact the divalent copper salt or trivalent iron salt functions as a catalyst for multi-electron reduction of oxygen.