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:
Feb. 14, 2006
Filed:
Jun. 14, 2002
Kazuo Saito, Tokyo, JP;
Atsushi Hagiwara, Tokyo, JP;
Kazuo Saito, Tokyo, JP;
Atsushi Hagiwara, Tokyo, JP;
Nisshinbo Industries, Inc., Tokyo, JP;
Abstract
A fuel cell separator which is low in cost and high in hydrophilicity and electrical conductivity and a process for producing the fuel cell separator. The fuel cell separator is characterized in that by using a starting material for a fuel cell separator subjected to a hydrophilization treatment in a hydrophilizing gas, the surface contact angle of the fuel cell separator as measured by a sessile drop method using water is in a range of 3 to 70°; and the process of the present invention for producing a fuel cell separator is characterized in that a starting material for the fuel cell separator after molding or machining is subjected to a hydrophilization treatment in a hydrophilizing gas and thereby the surface contact angle of the fuel cell separator as measured by a sessile drop method using water is controlled at 3 to 70°.