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. 09, 2007
Filed:
Apr. 28, 2004
Tomonari Watanabe, Kanagawa, JP;
Mikio Sanada, Kanagawa, JP;
Masashi Ogasawara, Tokyo, JP;
Yui Tokuda, Kanagawa, JP;
Tomonari Watanabe, Kanagawa, JP;
Mikio Sanada, Kanagawa, JP;
Masashi Ogasawara, Tokyo, JP;
Yui Tokuda, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An aqueous ink comprising at least water, a water-soluble organic solvent and a colorant. The colorant comprises a pigment containing a pigment particle having at least one ionic group bonded to a surface of the pigment particle directly or via another atomic group. The organic solvent undergoes completely or substantially no solvation with the pigment and the ionic group of the pigment particle undergoes completely or substantially no ion dissociation in the organic solvent.