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:
May. 19, 2015
Filed:
Feb. 23, 2011
Akihiko Matsuyama, Kanagawa, JP;
Kiyofumi Nagai, Tokyo, JP;
Akihiko Matsuyama, Kanagawa, JP;
Kiyofumi Nagai, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An inkjet recording ink set including a black ink and color inks, wherein the black ink and the color inks each contain at least a dye, a water-soluble solvent and water and each have a viscosity of 5 mPa-s to 20 mPa-s at 25° C., and wherein the respective color inks each satisfy a mass ratio relationship of S/W≧1, and the black ink satisfies a mass ratio relationship of S/W<1, where S denotes an amount of the water-soluble solvent contained in the respective inks, and W denotes an amount of the water contained in the respective inks.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile