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:
Nov. 18, 1980
Filed:
Apr. 06, 1979
Applicant:
Inventor:
Ryuichi Yamamoto, Ehime, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D / ; B01K / ;
U.S. Cl.
CPC ...
204130 ;
Abstract
The surface of a carbon fiber is treated to improve the strength of its bond with a matrix. The fiber is made an anode by connecting it electrically with the anode current input terminal of an electrolytic treatment bath containing an electrolyte and having a cathode. The fiber is subjected to electrolysis in the bath. The relative distance between the fiber and the cathode in the bath decreases as the distance from the anode current input terminal along the fiber is increased.