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:
May. 27, 2025
Filed:
Jun. 17, 2024
Applicants:
Artience Co., Ltd., Tokyo, JP;
Toyocolor Co., Ltd., Tokyo, JP;
Inventors:
Shumpei Onishi, Tokyo, JP;
Naoki Deguchi, Tokyo, JP;
Assignees:
artience Co., Ltd., Tokyo, JP;
TOYOCOLOR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 32/174 (2017.01); C01B 32/168 (2017.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
C01B 32/174 (2017.08); C01B 32/168 (2017.08); C01P 2004/13 (2013.01); C01P 2006/11 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01);
Abstract
Carbon nanotubes have a bulk density X of 0.095 g/cmor more and 0.125 g/cmor less, a Zr content of 5 ppm or more and 500 ppm or less, and a maximum solvent absorption capacity Y of carbon nanotubes defined by formula (5) below of 8.0 or more, formula (5)(in formula (5), V is a mass (g) of carbon nanotubes, and W is a maximum mass (g) of N-methyl-2-pyrrolidone absorbed by carbon nanotubes when N-methyl-2-pyrrolidone is added dropwise to V (g) of carbon nanotubes in a 25° C. environment).