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:
Jun. 18, 2019

Filed:

Apr. 24, 2013
Applicants:

Hitachi Chemical Company, Ltd., Tokyo, JP;

St. Marianna University, School of Medicine, Kanagawa, JP;

National Institute of Agrobiological Sciences, Ibaraki, JP;

Inventors:

Kazutoshi Kobayashi, Ibaraki, JP;

Kunihiro Suto, Ibaraki, JP;

Naosuke Sumi, Ibaraki, JP;

Hajime Inoue, Kanagawa, JP;

Yasushi Tamada, Ibaraki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 47/42 (2017.01); A61K 38/18 (2006.01); A61K 9/00 (2006.01); A61K 47/36 (2006.01); A61K 35/62 (2006.01);
U.S. Cl.
CPC ...
A61K 47/42 (2013.01); A61K 9/0014 (2013.01); A61K 35/62 (2013.01); A61K 38/1808 (2013.01); A61K 38/1825 (2013.01); A61K 38/1858 (2013.01); A61K 47/36 (2013.01);
Abstract

The present invention can provide a controlled drug release carrier formed by using a silk fibroin porous material, which has high drug controlled release rate, controllability of the drug controlled release speed, high strength, easy handleability, skin care properties from high biocompatibility, high water retentivity, and capability of efficiently retaining a drug.


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