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:
Jul. 16, 2002
Filed:
Jun. 11, 1998
Applicant:
Inventors:
Masahiro Suzuki, Chiba, JP;
Toshi Tsuzuki, Chiba, JP;
Shinobu Ito, Tokyo, JP;
Eiji Ogata, Tokyo, JP;
Assignee:
Showa Denko Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 3/1341 ; C07D / ;
U.S. Cl.
CPC ...
A61K 3/1341 ; C07D / ;
Abstract
L-Ascorbic acid 2-phosphate zinc salt and a salt hydrate thereof having excellent solubility and exhibiting good stability even under weakly acidic conditions. Also disclosed is a process of manufacturing L-ascorbic acid 2-phosphate zinc salt by displacing a cation of a salt of an L-ascorbic acid 2-phosphate other than a zinc salt with a zinc cation. Further disclosed is a composition containing L-ascorbic acid 2-phosphate zinc salt or a salt hydrate thereof as an active ingredient.