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:
Sep. 06, 2016
Filed:
Jan. 22, 2014
Toray Industries, Inc., Tokyo, JP;
Jun Watanabe, Ehime, JP;
Fumihiko Tanaka, Ehime, JP;
Haruki Okuda, Ehime, JP;
Yuuki Okishima, Ehime, JP;
Kengo Hayashida, Ehime, JP;
Masafumi Ise, Ehime, JP;
Tomoko Ichikawa, Ehime, JP;
Naoki Muraki, Otsu, JP;
Toray Industries, Inc., , JP;
Abstract
A sizing agent-coated carbon fiber bundle has a sizing agent containing an aliphatic epoxy compound (C) and an aromatic epoxy compound (D) coated on the carbon fiber bundle, wherein the carbon fiber in the carbon fiber bundle is the one which exhibits, when measured by single-fiber composite fragmentation method, a number of fiber breaks of at least 2.0/mm when apparent single-fiber stress is 15.3 GPa and the number of fiber breaks of up to 1.7/mm when the apparent single-fiber stress is 12.2 GPa.