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. 13, 2007
Filed:
Mar. 19, 2003
Eiichi Akutsu, Ashigarakami-gun, JP;
Shigemi Ohtsu, Ashigarakami-gun, JP;
Keishi Shimizu, Ashigarakami-gun, JP;
Kazutoshi Yatsuda, Ashigarakami-gun, JP;
Takeshi Mikami, Ashigarakami-gun, JP;
Eiichi Akutsu, Ashigarakami-gun, JP;
Shigemi Ohtsu, Ashigarakami-gun, JP;
Keishi Shimizu, Ashigarakami-gun, JP;
Kazutoshi Yatsuda, Ashigarakami-gun, JP;
Takeshi Mikami, Ashigarakami-gun, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The invention provides an aqueous ink composition, which comprises at least: 1) an alkali neutralized product of a copolymer containing constituent units of: (i) at least one monomer selected from the group consisting of alkene, styrene, styrene derivatives, vinyl naphthalene, and vinyl naphthalene derivatives; (ii) at least one monomer selected from monomers containing an acidic group that ion dissociate; and (iii) at least one α,β-ethylenic unsaturated carboxylic acid alkyl ester; 2) a pigment; and 3) an aqueous medium, wherein the alkali neutralized product of the copolymer in the aqueous ink composition forms micelle aggregations with an average diameter being set in the range of 10 nm to 300 nm. A manufacturing method of the aqueous ink composition and an image forming method using the aqueous ink composition are also provided.