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. 07, 2010
Filed:
Sep. 28, 2007
Wu Mei, Yokohama, JP;
Taishi Fukazawa, Fuchu, JP;
Itsuko Mizutani, Yokohama, JP;
Tsuyoshi Kobayashi, Kawasaki, JP;
Yoshihiko Nakano, Yokohama, JP;
Mina Farag, Fremont, CA (US);
Yi-qun LI, Fremont, CA (US);
Shinji Aoki, Fremont, CA (US);
Wu Mei, Yokohama, JP;
Taishi Fukazawa, Fuchu, JP;
Itsuko Mizutani, Yokohama, JP;
Tsuyoshi Kobayashi, Kawasaki, JP;
Yoshihiko Nakano, Yokohama, JP;
Mina Farag, Fremont, CA (US);
Yi-Qun Li, Fremont, CA (US);
Shinji Aoki, Fremont, CA (US);
Kabushiki Kaisha Toshiba, Tokyo, JP;
Intematix Corporation, Fremont, CA (US);
Abstract
A methanol oxidation catalyst is provided, which includes nanoparticles having a composition represented by the following formula 1:PtRuTQ  formula 1 In the formula 1, the T-element is at least one selected from a group consisting of Mo, W and V and the Q-element is at least one selected from a group consisting of Nb, Cr, Zr and Ti, x is 40 to 90 at. %, y is 0 to 9.9 at. %, z is 3 to 70 at. % and u is 0.5 to 40 at. %. The area of the peak derived from oxygen bond of T-element is 80% or less of the area of the peak derived from metal bond of T-element in a spectrum measured by an X-ray photoelectron spectral method.