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:
Mar. 28, 2017
Filed:
Sep. 24, 2012
Applicant:
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Inventors:
Kazuto Ikemoto, Niigata, JP;
Hitoshi Sakamoto, Niigata, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K 38/43 (2006.01); C07D 471/04 (2006.01); A61K 8/49 (2006.01); A61Q 19/08 (2006.01); A23L 2/52 (2006.01); A23L 2/58 (2006.01); A61K 31/122 (2006.01); A61Q 1/06 (2006.01); A61Q 1/10 (2006.01); A61Q 5/02 (2006.01); A61Q 19/00 (2006.01); A61K 31/4745 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); A23K 20/137 (2016.05); A23L 2/52 (2013.01); A23L 2/58 (2013.01); A23L 5/47 (2016.08); A23L 33/10 (2016.08); A61K 8/4926 (2013.01); A61K 31/122 (2013.01); A61K 31/4745 (2013.01); A61Q 1/06 (2013.01); A61Q 1/10 (2013.01); A61Q 5/02 (2013.01); A61Q 19/007 (2013.01); A61Q 19/08 (2013.01); A23V 2002/00 (2013.01); A61K 2800/42 (2013.01);
Abstract
The present invention relates to a compound represented by the formula (A) or (B), or a salt thereof capable of improving a red color of pyrroloquinoline quinone (PQQ) and obtaining functions of original PQQ, and to a method of efficiently manufacturing the compound. wherein R is an alkyl group, a hydroxyalkyl group, a dihydroxyalkyl group, or an alkoxyalkyl group.