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:
Oct. 18, 2011
Filed:
Aug. 19, 2008
Applicants:
Takayoshi Hirai, Nagoya, JP;
Hidekazu Nishino, Nagoya, JP;
Kenichi Sato, Nagoya, JP;
Naoyo Okamoto, Nagoya, JP;
Inventors:
Takayoshi Hirai, Nagoya, JP;
Hidekazu Nishino, Nagoya, JP;
Kenichi Sato, Nagoya, JP;
Naoyo Okamoto, Nagoya, JP;
Assignee:
TORAY Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aggregate of carbon nanotubes satisfying all of the following requirements (1) to (3): (1) the volume resistivity is from 1×10Ω·cm to 5×10Ω·cm; (2) at least 50 out of 100 carbon nanotubes are double-walled carbon nanotubes in observation by a transmission electron microscope; and (3) the weight loss from 200° C. to 400° C. in thermogravimetry at a temperature rise of 10° C/min is from 5% to 20%.