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:
Jun. 01, 2010
Filed:
Apr. 19, 2007
Wu Mei, Yokohama, JP;
Taishi Fukazawa, Fuchu, JP;
Takahiro Sato, Kawasaki, JP;
Itsuko Mizutani, Yokohama, JP;
Tsuyoshi Kobayashi, Kawasaki, JP;
Yoshihiko Nakano, Yokohama, JP;
Wu Mei, Yokohama, JP;
Taishi Fukazawa, Fuchu, JP;
Takahiro Sato, Kawasaki, JP;
Itsuko Mizutani, Yokohama, JP;
Tsuyoshi Kobayashi, Kawasaki, JP;
Yoshihiko Nakano, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A catalyst includes a conductive carrier and catalyst particles. The catalyst particles are supported on the conductive carrier and have a composition represented by formula 1, below. An area of a peak derived from a metal bond of a T-element is 15% or more of an area of a peak derived from an oxygen bond of the T-element in a spectrum obtained by X-ray photoelectron spectroscopic method.PtRuT  (1)where the T-element is at least one element selected from the group consisting of V, Nb and Hf, x is 30 to 60 at. %, y is 20 to 50 at. % and z is 5 to 50 at. %.