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:
Sep. 27, 2022

Filed:

Aug. 29, 2019
Applicant:

Kaneka Corporation, Osaka, JP;

Inventors:

Takao Yamaguchi, Takasago, JP;

Koichi Kinoshita, Takasago, JP;

Assignee:

KANEKA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/40 (2006.01);
U.S. Cl.
CPC ...
C07C 41/40 (2013.01); C07B 2200/13 (2013.01);
Abstract

Provided is a production method capable of efficiently producing a reduced coenzyme Q10 Form II crystal. The method for producing a reduced coenzyme Q10 Form II crystal includes: adding a reduced coenzyme Q10 Form II crystal as a seed crystal to a solution with a temperature of 32° C. to 43° C., the solution containing fa) at least one organic solvent selected from the group consisting of an alcohol, a hydrocarbon, an aliphatic acid ester and a nitrogen compound, and (b) reduced coenzyme Q10, to prepare a mixture, and precipitating the reduced coenzyme Q10 from the mixture, in the form of the reduced coenzyme Q10 Form II crystal.


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