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:
Jul. 05, 2016

Filed:

Apr. 20, 2012
Applicants:

Akinori Goto, Tochigi, JP;

Mamoru Fukuda, Tokyo, JP;

Inventors:

Akinori Goto, Tochigi, JP;

Mamoru Fukuda, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07B 63/00 (2006.01); C07D 223/26 (2006.01); C07D 473/08 (2006.01); C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
C07D 473/08 (2013.01); C07B 63/00 (2013.01); C07D 223/26 (2013.01); C07D 487/04 (2013.01);
Abstract

The present invention relates to a method for producing a complex crystal composed of two or more different compounds, comprising crystallizing the two or more different compounds under a condition at which menthol is heat melted, and a method for screening a complex crystal. In accordance with the method for producing a complex crystal of the present invention, a complex crystal capable of being used as a drug material can be produced rapidly, simply and efficiently. In addition, in accordance with the method for screening a complex crystal of the present invention, a stable complex crystal can be searched, which is industrially useful.


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