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. 07, 2015
Filed:
Mar. 06, 2009
Suguru Noda, Tokyo, JP;
Hisashi Sugime, Tokyo, JP;
Yukio Yamaguchi, Kawasaki, JP;
Toshio Osawa, Tokyo, JP;
Kazunori Kakehi, Okazaki, JP;
Kei Hasegawa, Tokyo, JP;
Dong Young Kim, Tokyo, JP;
Suguru Noda, Tokyo, JP;
Hisashi Sugime, Tokyo, JP;
Yukio Yamaguchi, Kawasaki, JP;
Toshio Osawa, Tokyo, JP;
Kazunori Kakehi, Okazaki, JP;
Kei Hasegawa, Tokyo, JP;
Dong Young Kim, Tokyo, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
The method for producing carbon nanotubes employs a carbon source that contains carbon and is decomposed when heated and a catalyst on a support that serves as a catalyst for production of carbon nanotubes from the carbon source. The method includes a catalyst loading step in which the catalyst starting material is distributed over the support to load the catalyst onto the support, a synthesis step in which the carbon nanotubes are synthesized on the support, and a separating step in which a separating gas stream is distributed over the support to separate the carbon nanotubes from the support, wherein the catalyst loading step, the synthesis step and the separating step are carried out while keeping the support in a heated state and switching supply of the catalyst starting material, the carbon source and the separating gas stream.