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:
Apr. 09, 2013
Filed:
Aug. 03, 2012
Toru Noguchi, Nagano, JP;
Hiroyuki Ueki, Nagano, JP;
Shigeki Inukai, Nagano, JP;
Kenji Takeuchi, Nagano, JP;
Satoshi Iinou, Nagano, JP;
Toru Noguchi, Nagano, JP;
Hiroyuki Ueki, Nagano, JP;
Shigeki Inukai, Nagano, JP;
Kenji Takeuchi, Nagano, JP;
Satoshi Iinou, Nagano, JP;
Nissin Kogyo Co., Ltd., Ueda-shi, JP;
Abstract
A method of producing a carbon fiber composite material includes a first step and a second step. The first step includes oxidizing first carbon nanofibers produced by a vapor growth method to obtain second carbon nanofibers having an oxidized surface. The second step includes mixing the second carbon nanofibers into an elastomer, and uniformly dispersing the carbon nanofibers in the elastomer by applying a shear force to obtain the carbon fiber composite material. The second carbon nanofibers obtained by the first step have a surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) of 2.6 to 4.6 atm %.