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. 18, 2014
Filed:
Oct. 29, 2009
Akihiko Matsuyama, Kanagawa, JP;
Ichiroh Fujii, Kanagawa, JP;
Yuuki Yokohama, Kanagawa, JP;
Kiyofumi Nagai, Tokyo, JP;
Akihiko Gotoh, Kanagawa, JP;
Mariko Kojima, Tokyo, JP;
Masaki Kudoh, Kanagawa, JP;
Tomohiro Nakagawa, Kanagawa, JP;
Akihiko Matsuyama, Kanagawa, JP;
Ichiroh Fujii, Kanagawa, JP;
Yuuki Yokohama, Kanagawa, JP;
Kiyofumi Nagai, Tokyo, JP;
Akihiko Gotoh, Kanagawa, JP;
Mariko Kojima, Tokyo, JP;
Masaki Kudoh, Kanagawa, JP;
Tomohiro Nakagawa, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An inkjet recording ink containing a colorant, a surfactant A, a surfactant B, a water soluble organic solvent, and water, wherein the surfactant A is expressed by any one of Structural Formula (1) and Structural Formula (2), and the surfactant B is expressed by Structural Formula (3): in Structural Formula (1), R1 represents hydrogen, an alkyl group, or an acyl group; Rf represents —CFor —CFCF; and m, n and p are natural numbers; in Structural Formula (2), M represents alkali metal, ammonium, phosphonium, or alkanolamine; Rf represents —CFor —CFCF; and q is a natural number; in Structural Formula (3), Rand Reach represent hydrogen or an alkyl group; and r, s, t and u are natural numbers.