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:
Feb. 23, 1993
Filed:
Aug. 31, 1990
Applicant:
Inventors:
Yasuhiro Yamada, Saga, JP;
Hidemasa Honda, Tokyo, JP;
Haruki Yamasaki, Kanagawa, JP;
Susumu Shimizu, Tokyo, JP;
Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428370 ; 428364 ; 428367 ; 428373 ; 428374 ; 4234471 ; 4234472 ; 26421111 ;
Abstract
Disclosed herein is curled or uncurled composite carbon fiber which comprises part of optically isotropic carbon fiber and balance of optically anisotropic one and a process for preparing the same. The composite carbon fiber possesses the excellent characteristics by complementing the respective defects by means of the respective characteristics of the both kinds of the carbon fiber.
Yamada, Yasuhiro. (1993). Composite carbon fiber and process for preparing same (U.S. Patent No. 5188894). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5188894
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile