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, 2003
Filed:
Oct. 19, 2001
Applicant:
Inventors:
Yasunori Sasaki, Kamakura, JP;
Kazuhisa Senda, Fujisawa, JP;
Osamu Nagai, Hiratsuka, JP;
Shigeo Wakamatsu, Fujisawa, JP;
Osamu Ando, Yamato, JP;
Tasashi Fujimoto, Chigasaki, JP;
Assignee:
Nok Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/514 ; B29C 3/312 ; B29C 3/342 ; B29C 6/570 ;
U.S. Cl.
CPC ...
B29C 4/514 ; B29C 3/312 ; B29C 3/342 ; B29C 6/570 ;
Abstract
A gasket is provided on a porous sheet in one body. The gasket is thin and has an excellent sealability, and processability when the gasket is built in layer-built fuel cells. The gasket is made of liquid rubber and has a hardness not more than 60 (JIS A). Liquid perfluoro rubber and liquid silicone rubber is preferably used for the gasket. And gasket can be made by injection molding.