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:
Jan. 27, 2015
Filed:
Dec. 21, 2010
Applicants:
Yuichi Sadamitsu, Tokyo, JP;
Takahiro Higeta, Tokyo, JP;
Inventors:
Yuichi Sadamitsu, Tokyo, JP;
Takahiro Higeta, Tokyo, JP;
Assignees:
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Polatechno Co., Ltd., Niigata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B 31/30 (2006.01); G02B 5/30 (2006.01); C09B 31/22 (2006.01); C09B 31/08 (2006.01); C09B 45/28 (2006.01); C09B 56/08 (2006.01);
U.S. Cl.
CPC ...
C09B 31/22 (2013.01); C09B 31/08 (2013.01); C09B 45/28 (2013.01); C09B 56/08 (2013.01); G02B 5/3033 (2013.01);
Abstract
Disclosed is an azo compound represented by the formula (1) below, a salt thereof, or a copper complex salt compound thereof. (In the formula, R1 and R2 independently represent a hydrogen atom, a sulfonic acid group, a lower alkyl group or a lower alkoxyl group; R3-R6 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxyl group; R7 represents a lower alkyl group or a lower alkoxyl group; and n represents 0 or 1.)