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:
Aug. 20, 2013
Filed:
Dec. 02, 2008
Toru Noguchi, Nagano, JP;
Hiroyuki Ueki, Nagano, JP;
Satoshi Iinou, Nagano, JP;
Kenji Takeuchi, Nagano, JP;
Toru Noguchi, Nagano, JP;
Hiroyuki Ueki, Nagano, JP;
Satoshi Iinou, Nagano, JP;
Kenji Takeuchi, Nagano, JP;
Nissin Kogyo Co., Ltd., Ueda, JP;
Abstract
A method of producing carbon nanofibers includes grinding untreated carbon nanofibers produced by a vapor growth method. The untreated carbon nanofibers are ground so that the ground carbon nanofibers have a tap density 1.5 to 10 times higher than that of the untreated carbon nanofibers. A method of producing a carbon fiber composite material includes mixing carbon nanofibers into an elastomer, and uniformly dispersing the carbon nanofibers in the elastomer by applying a shear force to obtain a carbon fiber composite material.