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:
Feb. 28, 2012
Filed:
Sep. 28, 2009
Hisashi Kajiura, Tokyo, JP;
Yongming LI, Beijing, CN;
Liping Huang, Beijing, CN;
Yunqi Liu, Beijing, CN;
Dacheng Wei, Beijing, CN;
Yu Wang, Beijing, CN;
Hongliang Zhang, Beijing, CN;
Hisashi Kajiura, Tokyo, JP;
Yongming Li, Beijing, CN;
Liping Huang, Beijing, CN;
Yunqi Liu, Beijing, CN;
Dacheng Wei, Beijing, CN;
Yu Wang, Beijing, CN;
Hongliang Zhang, Beijing, CN;
Sony Corporation, Tokyo, JP;
Abstract
Carbon nanotubes, a method for preparing the same and an element using the same are provided. The method for preparing carbon nanotubes includes synthesizing carbon nanotubes from carbon source using an arc-discharge method in the presence of catalysts and promoter, wherein the promoter contains an element capable of reducing the surface energy of carbon nanotubes. Carbon nanotubes with high purity and narrow diameter distribution can thus be prepared.