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:
Feb. 05, 2013
Filed:
Feb. 21, 2007
Applicants:
Takushi Yoshida, Tokyo, JP;
Katsue Takizawa, Saitama, JP;
Inventors:
Takushi Yoshida, Tokyo, JP;
Katsue Takizawa, Saitama, JP;
Assignee:
Q.P. Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H 5/04 (2006.01); C07H 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low-molecular-weight hyaluronic acid and/or its salt has an average molecular weight of 5000 to 20,000, and has a molecular weight distribution in which the proportion of components having a molecular weight of 10,000 or less is 40 wt % or more and the proportion of components having a molecular weight of 50,000 or more is 5 wt % or less.