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. 15, 2003
Filed:
Apr. 24, 2002
Katsuhiro Shirota, Kanagawa, JP;
Hidemi Kubota, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an ink set capable of achieving a further improvement in quality of an image formed on commercial plain paper. The ink set includes a combination of a recording performance improving liquid for improving the recording performance of ink jet ink, and ink jet ink for forming an image on a recording medium by an ink jet recording method, wherein the recording performance improving liquid contains at least cationic resin fine particles, the ink jet ink contains an organic pigment as a colorant, and the difference between the zeta potentials of the recording performance improving liquid and the ink jet ink is 30 mV or more.