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:
Mar. 31, 1998
Filed:
Feb. 21, 1996
Applicant:
Inventors:
Assignee:
Nippon Oil Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
264 291 ; 264 292 ; 264 296 ; 264 297 ; 4234471 ; 4234472 ; 4234474 ;
Abstract
A method for manufacturing a carbon preform comprising the steps of charging a container with pitch fibers obtained by melt spinning a carbonaceous pitch to fill therein during spinning, infusibilizing the thus filled pitch fibers, and calcining and molding the infusibilized pitch fibers under a uniaxial pressure, and a method for manufacturing a carbon/carbon composite material comprising densifying the carbon preform.