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. 28, 2006
Filed:
Feb. 03, 2003
Mikio Sanada, Kanagawa, JP;
Yoshihisa Takizawa, Tokyo, JP;
Katsuhiko Takahashi, Kanagawa, JP;
Masashi Ogasawara, Tokyo, JP;
Yoichi Takada, Kanagawa, JP;
Tomonari Watanabe, Kanagawa, JP;
Yui Tokuda, Kanagawa, JP;
Mikio Sanada, Kanagawa, JP;
Yoshihisa Takizawa, Tokyo, JP;
Katsuhiko Takahashi, Kanagawa, JP;
Masashi Ogasawara, Tokyo, JP;
Yoichi Takada, Kanagawa, JP;
Tomonari Watanabe, Kanagawa, JP;
Yui Tokuda, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an aqueous ink, particularly an aqueous ink suitable for ink jet recording. The ink is an aqueous ink comprising a modified pigment having organic groups chemically attached to the surface of a particle of the pigment and an aqueous medium which is a dispersant of the pigment, wherein the above-described organic group includes a reaction product of a functional group chemically attached to the surface of the pigment directly or via another atomic group with a copolymer of an ionic monomer and a hydrophobic monomer.