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. 24, 2004
Filed:
Aug. 07, 2001
Masayuki Momose, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An aqueous ink composition comprising at least: a surface-modified pigment capable of at least one of dispersing and dissolving in an aqueous solvent without use of a dispersant; an organic amine compound having a propanol skeleton; and water. Also disclosed are an aqueous ink composition comprising at least a pigment, a dispersant, an organic amine compound having a propanol skeleton, a penetration accelerator and water, and an aqueous ink composition comprising at least a coloring agent, water, and at least one organic amine compound selected from the group consisting of hydroxyisopropyl dimethylamine, hydroxyisopropyl diisopropylamine, hydroxyisopropyl dibutylamine, dihydroxyisopropyl ethylamine, dihydroxyisopropyl isopropylamine, dihydroxyisopropyl butylamine, dihydroxyisopropyl hydroxyethylamine, dihydroxyethyl hydroxylsopropylamine, dihydroxyethyl-n-butylamine, hydroxyathyl diisopropylamine and hydroxyethyl di-n-butylamine.