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:
Oct. 20, 2020
Filed:
Jul. 31, 2018
Applicant:
Denka Company Limited, Tokyo, JP;
Inventors:
Akio Ohno, Tokyo, JP;
Masamichi Hashimoto, Tokyo, JP;
Harei Nemoto, Tokyo, JP;
Takafumi Harada, Tokyo, JP;
Kenji Fujii, Tokyo, JP;
Assignee:
Denka Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/728 (2006.01); C08B 37/08 (2006.01); A61K 9/00 (2006.01); A61L 26/00 (2006.01); A61L 15/28 (2006.01); A61L 27/20 (2006.01); A61K 9/50 (2006.01); A61L 31/04 (2006.01); A61K 9/48 (2006.01);
U.S. Cl.
CPC ...
A61K 31/728 (2013.01); A61K 9/0019 (2013.01); A61K 9/4816 (2013.01); A61K 9/5036 (2013.01); A61L 15/28 (2013.01); A61L 26/0023 (2013.01); A61L 27/20 (2013.01); A61L 31/042 (2013.01); C08B 37/0072 (2013.01); A61L 2400/04 (2013.01); A61L 2400/06 (2013.01); A61L 2430/24 (2013.01); A61L 2430/34 (2013.01);
Abstract
A core-shell gel particle of the invention contains a crosslinked hyaluronic acid, has a higher equilibrium swelling capacity at the surface than at the center, the equilibrium swelling capacity showing a change curve with an inflection point from the center to the surface, and has a probe pushing force of 20 nN or less from the surface to a depth of 800 nm.