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:
Aug. 08, 2000
Filed:
Nov. 23, 1998
Applicant:
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ; C09D / ; C09D / ;
U.S. Cl.
CPC ...
523160 ; 523161 ; 106 3143 ; 106 3175 ;
Abstract
Addition of a compound, selected from the group consisting of water-soluble hydroxypyridine derivatives, chain or cyclic amide compounds, imidazole derivatives, hydroxycyclic amine compounds, azole compounds, azine compounds, amidine derivatives, and purine derivatives, as a clogging preventive to an ink composition containing a cationic, water-soluble polymer enables the ink composition to yield an image having good waterfastness and to be less likely to cause nozzle clogging.