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:
Dec. 10, 1991
Filed:
Dec. 20, 1989
Applicant:
Inventor:
Minoru Takabatake, Ibarakiken, JP;
Assignee:
Petoca Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423445 ; 423449 ; 264 291 ; 264 295 ;
Abstract
A porous isotropic carbon-carbon composite having a porosity of 25 to 85% and substantially isotropic mechanical strength, and containing 60% by weight or more of aggregate particles having an aspect ratio of 10 or smaller and reinforced in one direction with carbon fiber is provided.