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:
Mar. 07, 2017

Filed:

Feb. 05, 2010
Applicants:

Keiichi Yamamoto, Toyama, JP;

Toshiki Okubo, Toyama, JP;

Satoshi Yomoda, Toyama, JP;

Hiroyasu Esumi, Chiba, JP;

Chika Miyoshi, Chiba, JP;

Shigetoshi Kadota, Toyama, JP;

Inventors:

Keiichi Yamamoto, Toyama, JP;

Toshiki Okubo, Toyama, JP;

Satoshi Yomoda, Toyama, JP;

Hiroyasu Esumi, Chiba, JP;

Chika Miyoshi, Chiba, JP;

Shigetoshi Kadota, Toyama, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/365 (2006.01); C07D 307/33 (2006.01); A61K 9/16 (2006.01); A61K 9/20 (2006.01); A61K 36/28 (2006.01); A61K 9/19 (2006.01);
U.S. Cl.
CPC ...
C07D 307/33 (2013.01); A61K 9/1623 (2013.01); A61K 9/1688 (2013.01); A61K 9/2054 (2013.01); A61K 31/365 (2013.01); A61K 36/28 (2013.01); A61K 9/19 (2013.01);
Abstract

PROBLEM TO BE SOLVED A burdock fruit extract containing arctigenin at high content and its production method are provided, and both of which are used for treatment of pancreatic cancer. SOLUTION The burdock fruit extract containing arctigenin at high content by enzymatically converted arctiin into arctigenin with beta-glucosidase, which is an enzyme occurring endogenously in a burdock fruit, and adding ethanol, extracting, concentrating and then freeze-drying or spray drying.


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