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:
Mar. 28, 2023
Filed:
Jun. 30, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Daiji Okamura, Tokyo, JP;
Naotoshi Miyamachi, Tokyo, JP;
Hiromitsu Kishi, Kawasaki, JP;
Keisuke Inui, Kawasaki, JP;
Hirohiko Yuasa, Kawasaki, JP;
Naofumi Shimomura, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The aqueous ink for ink jet contains a resin particle dyed with a fluorescent dye, and a water-soluble resin. The fluorescent dye contains a fluorescence-emitting dye selected from the group consisting of basic dye, disperse dye and oil-soluble dye, the resin particle has a core portion that contains an aromatic group-containing unit and cyano group-containing unit, and a shell portion that contains an aromatic group-containing unit, an anionic group-containing unit and a crosslinking agent-derived unit, but free of cyano group-containing unit, percentage (% by mass) of the crosslinking agent-derived unit in the shell portion is 30% by mass or more to 80% by mass or less, the water-soluble resin having an aromatic group-containing unit and an anionic group-containing unit, and the water-soluble resin having an acid value of 100 mgKOH/g or more to 180 mgKOH/g or less.