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.

Date of Patent:
Nov. 29, 2022

Filed:

Sep. 29, 2017
Applicant:

Nec Corporation, Tokyo, JP;

Inventors:

Fumiyuki Nihey, Tokyo, JP;

Hideaki Numata, Tokyo, JP;

Yuki Kuwahara, Tsukuba, JP;

Takeshi Saito, Tsukuba, JP;

Fusako Sasaki, Tsukuba, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 57/02 (2006.01); C01B 32/172 (2017.01); B03C 5/02 (2006.01);
U.S. Cl.
CPC ...
B01D 57/02 (2013.01); B03C 5/02 (2013.01); C01B 32/172 (2017.08); C01B 2202/02 (2013.01); C01B 2202/22 (2013.01);
Abstract

A nanocarbon separation method includes: a step of preparing a plurality of liquids with different specific gravities in which at least one of the plurality of liquids is a dispersion liquid in which a mixture of nanocarbons with different properties is dispersed; a step of sequentially injecting the plurality of liquids into an electrophoresis tank so that the specific gravities of the liquids decrease from a bottom to a top of the liquids in a direction of gravitational force; and a step of separating the mixture of the nanocarbons by moving a part of the mixture toward an electrode side disposed in an upper part of the electrophoresis tank and moving a remainder of the mixture toward an electrode side disposed in a lower part of the electrophoresis tank by applying a direct current voltage to the electrodes.


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