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:
Jun. 26, 2012
Filed:
Nov. 21, 2007
Shin Sakurai, Choshi, JP;
Ken Furukawa, Kashima, JP;
Kimihiro Matsuo, Kamisu, JP;
Kenichi Tagami, Kamisu, JP;
Shin Sakurai, Choshi, JP;
Ken Furukawa, Kashima, JP;
Kimihiro Matsuo, Kamisu, JP;
Kenichi Tagami, Kamisu, JP;
Eisai R & D Management Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a composition comprising a plurality of sodium salts represented by the formula (I): wherein, m, n, mand nrespectively and independently represent a positive number between 0 and 2, provided that m+n=2, m+n=2, 0<m+m<4 and 0<n+n<4, and a method for producing the same, and a method for inhibiting the decomposition of a sodium salt represented by general formula (IV): comprising: having the sodium salt represented by general formula (IV) in the presence of the sodium salts represented by formula (I), and according to the present invention the stability over time of the sodium salt represented by general formula (IV) is improved.