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:
Apr. 01, 2008
Filed:
Jan. 08, 2004
Tetsuro Yoshii, Minato-Ku, JP;
Tetsuro Yoshii, Minato-Ku, JP;
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Abstract
A production method of the present invention includes: a process of bringing a solutionand a second solventinto contact with each other so that a liquid-liquid interfaceis formed therebetween, where the solutionincludes a first solvent containing a benzene derivative (A) whose content is at least 50 wt. % and fullerene dissolved in the first solvent, and the second solventhas a lower solubility of the fullerene than that of the first solvent; and a process of allowing the solutionand the second solventto be mixed together through counter diffusion of the solutionand the second solventto deposit crystals of the fullerene. The benzene derivative (A) is at least one benzene derivative selected from the group consisting of a benzene derivative in which at least two hydrogen atoms of a benzene ring have been substituted, halogenated benzene, and alkoxybenzene.