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. 18, 2025
Filed:
Apr. 05, 2023
Applicants:
National University Corporation Shimane University, Shimane, JP;
Koyo Chemical Co., Ltd., Osaka, JP;
Inventors:
Koichiro Wada, Shimane, JP;
Haruki Usuda, Shimane, JP;
Morihiko Nakamura, Shimane, JP;
Yoshimori Takamori, Tottori, JP;
Seiji Kurozumi, Tottori, JP;
Assignees:
National University Corporation Shimane University, Shimane, JP;
KOYO CHEMICAL CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/722 (2006.01); A61K 9/00 (2006.01); A61K 49/00 (2006.01);
U.S. Cl.
CPC ...
A61K 31/722 (2013.01); A61K 9/0031 (2013.01); A61K 9/0053 (2013.01); A61K 49/0004 (2013.01);
Abstract
Provided is a diagnostic drug for evaluating permeability of intestinal mucosa, including chitin and/or chitosan as a main component. The chitin and/or chitosan to be used preferably has a weight average molecular weight prepared to a range of from 1,000 to 11,600.