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. 17, 2013
Filed:
Sep. 30, 2011
Ryo Taguri, Sagamihara, JP;
Hisao Kamo, Ushiku, JP;
Yasuhiro Nito, Yokohama, JP;
Tetsuro Noguchi, Hachioji, JP;
Isamu Oguri, Yokohama, JP;
Olivia Herlambang, Kawasaki, JP;
Naoya Hatta, Kawasaki, JP;
Ryo Taguri, Sagamihara, JP;
Hisao Kamo, Ushiku, JP;
Yasuhiro Nito, Yokohama, JP;
Tetsuro Noguchi, Hachioji, JP;
Isamu Oguri, Yokohama, JP;
Olivia Herlambang, Kawasaki, JP;
Naoya Hatta, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording medium including a substrate and an ink receiving layer provided on the substrate and composed of two or more layers of at least an upper layer and a lower layer. The ink receiving layer contains polyvinyl alcohol in an amount of 12.7% by mass or more based on the total mass of the ink receiving layer. The upper layer is a layer most distant from the substrate, contains a pigment and polyvinyl alcohol, the pigment containing 90% by mass or more of alumina hydrate, and has a thickness of 3.0-10.0 μm. The lower layer is positioned just under the upper layer, contains a pigment and polyvinyl alcohol, the pigment containing 20% by mass or more of silica, and has a thickness 2.5-10 times larger than that of the upper layer and an average pore radius 0.90-1.30 times larger than that of the upper layer.