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:
Jul. 30, 2013
Filed:
Jan. 16, 2009
Applicants:
Ryuji Monden, Chiba, JP;
Tadatoshi Kurozumi, Chiba, JP;
Toshikazu Shishikura, Chiba, JP;
Inventors:
Assignee:
Show A Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 21/12 (2006.01); B01J 27/22 (2006.01); B01J 27/228 (2006.01); B01J 27/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Catalysts of the invention are not corroded in acidic electrolytes or at high potential and have excellent durability and high oxygen reducing ability. The catalysts include a niobium oxycarbonitride represented by a compositional formula NbCNO(wherein x, y and z represent a ratio of the numbers of the atoms, 0.05≦x<0.7, 0.01≦y<0.7, 0.4≦z<2.5, 1.0<x+y+z<2.56, and 4.0≦4x+3y+2z).