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. 08, 1986
Filed:
Mar. 18, 1985
Applicant:
Inventors:
Masatomo Shigeta, Iwaki, JP;
Hiroyuki Fukuda, Iwaki, JP;
Kuniyuki Saitoh, Abiko, JP;
Hisatsugu Kaji, Iwaki, JP;
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
296231 ; 429 34 ; 429209 ; 429 72 ; 264105 ; 403D / ;
Abstract
Disclosed herein is a process for producing a carbonaceous electrode substrate for use in fuel cells, comprising two layers of a porous carbonaceous layer and a compact carbonaceous layer or three layers of two porous carbonaceous layers and a compact carbonaceous layer disposed between the two porous carbonaceous layers, wherein the porous carbonaceous layer(s) has elongated holes located nearly in the central region of thickness thereof, characterized by using high polymeric substance as a material for forming said elongated holes.