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:
Oct. 31, 2006
Filed:
May. 10, 2002
Applicants:
Naomitsu Nishihata, Fukushima, JP;
Masahito Tada, Fukushima, JP;
Inventors:
Naomitsu Nishihata, Fukushima, JP;
Masahito Tada, Fukushima, JP;
Assignee:
Kureha Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01B 1/06 (2006.01); B29C 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a solid polymer fuel cell separator that is molded or formed of a resin composition comprising a thermoplastic resin, a conductive carbon black having a bulk density of at least 0.3 g/ml and a DBP oil absorption of up to 150 ml/100 g and optionally a conductive filler having a volume resistivity of less than 1 Ω·cm. The invention also provides a solid polymer fuel cell separator production process involving injection molding of the resin composition.