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:
Nov. 15, 2016
Filed:
Dec. 09, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Itaru Tsuji, Kawasaki, JP;
Yuki Nishino, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording method including recording a secondary color image on a recording medium using a first ink and a second ink, wherein the first ink contains a first self-dispersible pigment having a functional group that contains a phosphonic acid group and is bonded to a particle surface of the pigment, the second ink contains a second self-dispersible pigment having a functional group that contains at least one acidic group of a sulfonic acid group and a carboxylic acid group and is bonded to a particle surface of the pigment. The method includes a step of overlappingly applying the first ink and the second ink in this order to the recording medium. The time difference between applications of the first ink and the second ink to the recording medium is 30 milliseconds or less.