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, 2003
Filed:
Oct. 03, 2001
Kiyoshi Homma, Shiga, JP;
Akira Nishimura, Ehime, JP;
Toray Industries, Inc., , JP;
Abstract
A stitched laminate, in which plural sheets respectively having plural tow-like carbon fibers arranged in parallel to each other are laminated, with the orienting directions of the carbon fiber yarns of the respective sheets kept at different angles against a reference direction, and are stitched integrally using stitching threads. The fineness of each of the carbon fiber yarns is in a range of 1,200 to 17,000 Tex, and the pitch of the arranged carbon fibers yarns is in the range of 8 to 60 mm. In the sheets, the arranged carbon fiber yarns are widened in yarn width to ensure that no gap substantially exists between the respectively adjacent carbon fiber yarns. The plural carbon fiber yarns supplied to form sheets are respectively brought into contact with plural rollers, to be bent and widened in yarn width.