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:
Jun. 24, 2014
Filed:
Oct. 28, 2010
Daiji Okamura, Tokyo, JP;
Kousuke Yamasaki, Kawasaki, JP;
Mitsuru Ishii, Kamagaya, JP;
Yuuki Nishino, Kawasaki, JP;
Yoichi Takada, Yokohama, JP;
Hirofumi Ichinose, Tokyo, JP;
Hiroshi Tomioka, Tokyo, JP;
Daiji Okamura, Tokyo, JP;
Kousuke Yamasaki, Kawasaki, JP;
Mitsuru Ishii, Kamagaya, JP;
Yuuki Nishino, Kawasaki, JP;
Yoichi Takada, Yokohama, JP;
Hirofumi Ichinose, Tokyo, JP;
Hiroshi Tomioka, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet ink contains a self-dispersing pigment and a polyurethane polymer. The polyurethane polymer has units derived from a polyisocyanate, a polyol having no acid group, and a diol having an acid group. The polyurethane polymer has a cross-linked structure and an acid value of the polyurethane polymer is 60 mgKOH/g or more and 100 mgKOH/g or less.