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. 31, 2017
Filed:
May. 24, 2013
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Hidetoshi Kitaura, Osaka, JP;
Naomi Nishiki, Kyoto, JP;
Kazuhiro Nishikawa, Osaka, JP;
Kimiaki Nakaya, Osaka, JP;
Atsushi Tanaka, Osaka, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B02C 23/00 (2006.01); B03C 1/30 (2006.01); C01B 31/04 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); B02C 19/06 (2006.01); B02C 23/08 (2006.01);
U.S. Cl.
CPC ...
B03C 1/30 (2013.01); B02C 19/06 (2013.01); B02C 23/08 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 31/04 (2013.01); C01B 31/0446 (2013.01); C01B 31/0469 (2013.01); B02C 23/00 (2013.01); B03C 2201/18 (2013.01); C01B 2204/02 (2013.01);
Abstract
A dispersion of suspended single-layer graphene, multilayer graphene, and graphite is used. A magnetic field is applied to the dispersion to separate the single-layer graphene from the dispersion. By applying the magnetic field, the single-layer graphene, the multilayer graphene, and the graphite are situated at different locations in solvent by the difference in the diamagnetism strengths of the single-layer graphene, the multilayer graphene, and the graphite.