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. 07, 2010
Filed:
Sep. 09, 2008
Hisao Kamo, Ushiku, JP;
Hiroshi Asakawa, Ebina, JP;
Hiroshi Kakihira, Kawasaki, JP;
Hirokazu Hyakuda, Kawasaki, JP;
Tetsuro Noguchi, Hachioji, JP;
Hisao Kamo, Ushiku, JP;
Hiroshi Asakawa, Ebina, JP;
Hiroshi Kakihira, Kawasaki, JP;
Hirokazu Hyakuda, Kawasaki, JP;
Tetsuro Noguchi, Hachioji, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides an ink jet recording medium which attains the prevention of the bronzing of cyan ink and the prevention of the migration of magenta ink at the same time and is excellent in image characteristics. The ink jet recording medium comprises a substrate and an ink-receiving layer provided with at least an upper layer as the outermost layer and a lower layer as a layer lying just under the upper layer, both layers having a porous structure formed of an alumina hydrate and a binder, wherein both of the upper and lower layers contain an alkylsulfonic acid and only the lower layer contains a cationic polymer.