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:
Nov. 18, 2014
Filed:
Aug. 08, 2008
Ryuji Monden, Chiba, JP;
Hiroshi Konuma, Chiba, JP;
Toshikazu Shishikura, Chiba, JP;
Tadatoshi Kurozumi, Chiba, JP;
Ryuji Monden, Chiba, JP;
Hiroshi Konuma, Chiba, JP;
Toshikazu Shishikura, Chiba, JP;
Tadatoshi Kurozumi, Chiba, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
The present invention provides a catalyst which is not corroded in an acidic electrolyte or at a high potential, is excellent in durability and has high oxygen reduction ability. The catalyst of the present invention is characterized by including a niobium oxycarbonitride. The catalyst of the invention is also characterized by including a niobium oxycarbonitride represented by the composition formula NbCNO, wherein x, y and z represent a ratio of the numbers of atoms and are numbers satisfying the conditions of 0.01≦x≦2, 0.01≦y≦2, 0.01≦z≦3 and x+y+z≦5.