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:
Oct. 19, 2021
Filed:
Mar. 15, 2019
Seiko Epson Corporation, Tokyo, JP;
Ippei Okuda, Shiojiri, JP;
Tsuyoshi Sano, Shiojiri, JP;
Abstract
A water-based ink jet ink composition includes: a coloring material; and resin, a content of the coloring material being equal to or less than 1.5% by mass with respect to the ink composition, a change in a volume average particle diameter of the resin after mixing a water-mediated solution for the resin and a 0.3 M magnesium sulfate aqueous solution is equal to or less than three times as large as a change in the volume average particle diameter before the mixing, and the ink composition is used by being caused to adhere to a recording medium along with a processing solution that contains a coagulant for coagulating constituents of the ink composition.