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:
Jul. 29, 1997
Filed:
Jan. 11, 1995
Applicant:
Inventors:
Yoshikazu Nagata, Ibaraki-ken, JP;
Katsumi Takano, Ibaraki-ken, JP;
Sadatoshi Ohno, Chiba-ken, JP;
Toshio Yonezawa, Chiba-ken, JP;
Junichi Ida, Nagoya, JP;
Masaki Iwata, Nagoya, JP;
Assignees:
Petoca, Ltd., Tokyo, JP;
Takenaka Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428378 ; 428364 ; 428368 ; 428408 ; 106638 ; 106713 ; 4234471 ; 4234472 ; 4234 / ;
Abstract
Carbon fiber rovings for reinforcement of concrete are here disclosed which are obtained by sizing, with a sizing agent, strands each consisting of 100 to 1,000 monofilaments of mesophase pitch-based carbon fibers, and then bundling the thus sized 5 to 100 strands into one roving.