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:
Apr. 12, 1988
Filed:
Feb. 26, 1987
Applicant:
Inventors:
Takeo Uemura, Omachi, JP;
Shigeru Murakami, Omachi, JP;
Assignee:
Showa Denko Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 34 ; 429251 ; 429253 ; 429255 ;
Abstract
The present invention relates to a method for producing a carbon sheet by baking and aims to produce a warpage-free carbon sheet having a high electric conductivity. The present invention is characterized by forming sheets comprising fibrous cellulose, thermosetting resin, and graphite powder and laminating the sheets, into which thermosetting resin is impregnated.
Uemura, Takeo. (1988). Method for producing a carbon sheet and a fuel cell separator (U.S. Patent No. 4737421). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4737421
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile