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. 27, 2010
Filed:
Dec. 11, 2006
Kenichi Sato, Nagoya, JP;
Keisuke Fujita, Susono, JP;
Masayuki Maeda, Nagoya, JP;
Masahito Yoshikawa, Aichi, JP;
Kazuyoshi Higuchi, Obu, JP;
Kenichi Sato, Nagoya, JP;
Keisuke Fujita, Susono, JP;
Masayuki Maeda, Nagoya, JP;
Masahito Yoshikawa, Aichi, JP;
Kazuyoshi Higuchi, Obu, JP;
TORAY Industries, Inc., Tokyo, JP;
Abstract
Provided is a method for producing a carbon nanotube, wherein a catalyst for carbon nanotube production comprising a powdery catalyst supporting a metal on magnesia and having a bulk density of 0.30 g/mL to 0.70 g/mL, in a vertical reactor, is disposed over the whole area in a horizontal cross section direction of the reactor, in such state a carbon-containing compound flowed in a vertical direction inside the reactor is contacted with the catalyst at 500 to 1200° C., thereby carbon nanotubes of uniformity and high quality are efficiently synthesized in a large amount.