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:
Sep. 22, 2015
Filed:
Feb. 22, 2013
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Nariyuki Tomonaga, Tokyo, JP;
Tomoaki Sugiyama, Tokyo, JP;
Yasushi Mori, Tokyo, JP;
Takashi Kurisaki, Tokyo, JP;
Takanori Suto, Tokyo, JP;
Kota Kikuchi, Tokyo, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/58 (2006.01); B01J 23/02 (2006.01); B01J 23/06 (2006.01); B01J 23/78 (2006.01); B01J 35/00 (2006.01); C01B 31/02 (2006.01);
U.S. Cl.
CPC ...
B01J 23/78 (2013.01); B01J 23/02 (2013.01); B01J 35/002 (2013.01); C01B 31/024 (2013.01); C01B 31/0233 (2013.01);
Abstract
The present invention provides a catalyst for forming carbon nanotubes that improves a yield at the time of manufacturing carbon nanotubes and enables continuous mass production of carbon nanotubes with high purity. The catalyst for forming carbon nanotubes of the present invention includes a carrier that includes MgO and a metal catalyst that is supported by the carrier, and the concentration of the MgO in the carrier is set equal to 99 mass % or higher.