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:
Dec. 16, 2003
Filed:
May. 15, 2001
Applicant:
Inventors:
Hiroki Kourai, Tokushima, JP;
Shigeyuki Shibata, Aichi, JP;
Katsuyoshi Harada, Aichi, JP;
Masayoshi Kume, Aichi, JP;
Assignee:
Toagosei Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/48 ;
U.S. Cl.
CPC ...
C11D 3/48 ;
Abstract
The novel quaternary ammonium salt according to the invention has two quaternary ammonium groups connected to a benzene ring, wherein two C alkyl groups and one C alkyl group are connected per one nitrogen atom constituting the quaternary ammonium. The compound is used as an antimicrobial agent, exhibits a high safety to human as compared with known antimicrobial agents, exerts an excellent sterilizing effect itself and exhibits a wide sterilizing spectrum. In particular, the compound is used as a presevative for eye drop.