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:
Dec. 16, 2014
Filed:
Dec. 12, 2011
Yuuki Nishino, Kawasaki, JP;
Daiji Okamura, Tokyo, JP;
Kousuke Yamasaki, Kawasaki, JP;
Mitsuru Ishii, Kamagaya, JP;
Hirofumi Ichinose, Tokyo, JP;
Hiroshi Tomioka, Tokyo, JP;
Yuuki Nishino, Kawasaki, JP;
Daiji Okamura, Tokyo, JP;
Kousuke Yamasaki, Kawasaki, JP;
Mitsuru Ishii, Kamagaya, JP;
Hirofumi Ichinose, Tokyo, JP;
Hiroshi Tomioka, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet ink includes a pigment and a polyurethane polymer having units derived from a polyisocyanate, a polyol, and a diol having an acid group, and in the ink jet ink described above, an acid value of the polyurethane polymer is 20 mgKOH/g or more and 100 mgKOH/g or less, the unit derived from the polyisocyanate includes a unit derived from a compound represented by the following general formula (I), and the proportion of the unit derived from the compound represented by the general formula (I) in the unit derived from the polyisocyanate is 90 percent by mole or less.