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:
Apr. 08, 2014
Filed:
Mar. 20, 2012
Kouichirou Okumura, Kawasaki, JP;
Kenichi Shiiba, Kawaguchi, JP;
Daiji Okamura, Tokyo, JP;
Kousuke Yamasaki, Kawasaki, JP;
Kenji Moribe, Fujisawa, JP;
Hiromitsu Kishi, Kawasaki, JP;
Kouichirou Okumura, Kawasaki, JP;
Kenichi Shiiba, Kawaguchi, JP;
Daiji Okamura, Tokyo, JP;
Kousuke Yamasaki, Kawasaki, JP;
Kenji Moribe, Fujisawa, JP;
Hiromitsu Kishi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet ink contains a polyurethane polymer and a pigment. The polyurethane polymer has units derived from a polyisocyanate, a polyether polyol having no acid group, and a diol having an acid group. The pigment is dispersed using a polymer other than the polyurethane polymer. The molar ratio of the percentage of the urethane bond in the polyurethane polymer to the percentage of the urea bond in the polyurethane polymer is 85.0/15.0 or more and 100.0/0 or less.