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:
Nov. 15, 2016
Filed:
Aug. 09, 2011
Haruyo Soya, Sunto-gun, JP;
Tomomi Murakami, Sunto-gun, JP;
Haruki Tsunoda, Sunto-gun, JP;
Yu Ohsugi, Sunto-gun, JP;
Ayako Yoda, Sunto-gun, JP;
Masashi Matsushita, Sunto-gun, JP;
Haruyo Soya, Sunto-gun, JP;
Tomomi Murakami, Sunto-gun, JP;
Haruki Tsunoda, Sunto-gun, JP;
Yu Ohsugi, Sunto-gun, JP;
Ayako Yoda, Sunto-gun, JP;
Masashi Matsushita, Sunto-gun, JP;
KYOWA MEDEX CO., LTD., Tokyo, JP;
Abstract
Described is a method for preserving an aqueous solution comprising a leuco chromogen, comprising adding at least one compound selected from the group consisting of polyoxyethylene alkylamine and polyoxyethylene alkenylamine to the aqueous solution containing a leuco chromogen, and a method for stabilizing a leuco chromogen, comprising allowing the leuco chromogen to coexist in an aqueous solution comprising at least one compound selected from the group consisting of polyoxyethylene alkylamine and polyoxyethylene alkenylamine.