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:
May. 06, 2014
Filed:
Jun. 02, 2010
Toshikazu Shishikura, Chiba, JP;
Ryuji Monden, Chiba, JP;
Kunchan Lee, Chiba, JP;
Yasuaki Wakizaka, Chiba, JP;
Kenichiro Ota, Koganei, JP;
Toshikazu Shishikura, Chiba, JP;
Ryuji Monden, Chiba, JP;
Kunchan Lee, Chiba, JP;
Yasuaki Wakizaka, Chiba, JP;
Kenichiro Ota, Koganei, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
[Problem] To provide a catalyst which has high oxygen reduction activity, also has excellent durability, and is inexpensive and excellent in electric power generation cost as compared with noble metal catalysts such as platinum. [Solution to problem] A catalyst for a polymer electrolyte fuel cell, including a graphitized carbon powder and a niobium oxycarbonitride or a titanium oxycarbonitride as an active substance, and a polymer electrolyte fuel cell using the catalyst.