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. 18, 1995
Filed:
Apr. 20, 1993
Applicant:
Inventors:
Assignee:
Petoca Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
D01F / ;
U.S. Cl.
CPC ...
264 292 ; 264 297 ; 26421111 ; 4234471 ; 4234476 ; 4234478 ;
Abstract
Carbon fibers are provided essentially consisting of liquid crystal pitch based continuous monofilaments having an average filament diameter of 30 .mu.m or greater. The carbon fibers can have modulus of elasticity of 80,000 Kgf/mm.sup.2 or greater and tensile strength of 200 Kgf/mm.sup.2 or greater. The carbon fibers can be used as a multifilament fiber consisting of plural monofilaments as in the case of conventional carbon fibers but it is particularly preferable that a number of constituting monofilaments is one.