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. 03, 2009
Filed:
Oct. 09, 2002
Applicants:
Yuji Yagi, Kyoto, JP;
Tsuguki Komori, Gifu, JP;
Inventors:
Yuji Yagi, Kyoto, JP;
Tsuguki Komori, Gifu, JP;
Assignee:
Arkray, Inc., Kyoto, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12Q 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of stabilizing an oxidation color former in a solution is provided. N-(carboxymethylaminocarbonyl)-4,4'-bis(dimethylamino) diphenylamine sodium salt as an oxidation color former is stabilized by providing it with at least one of a fructosyl amino acid oxidase (FAOD) and a peroxidase (POD) in the solution. The concentration of the FAOD is in the range from 0.01 to 1.0 g/l or 1 to 100 KU/l, and the concentration of the POD is in the range from 0.01 to 1.0 g/l or 1 to 100 KU/l.