Recording medium

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United States of America Patent

PATENT NO 8431194
APP PUB NO 20110076518A1
SERIAL NO

12891700

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Abstract

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The invention provides a recording medium having 2 or more ink receiving layers on a substrate, wherein an upper layer of the ink receiving layers, which is a layer most distant from the substrate, and a lower layer, which is a layer located just under the upper layer, contain at least one selected from alumina hydrate and alumina, an acid and a hydrophilic binder, the acid contained in the upper layer is a carboxylic acid represented by the general formula [I], and the acid contained in the lower layer is a sulfonic acid represented by the general formula [II]

description='In-line Formulae' end='lead'R1—COOH  General formula [I]description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'R2—SO3H.  General formula [II]description='In-line Formulae' end='tail'

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Herlambang, Olivia Kawasaki, JP 31 117
Kamo, Hisao Ushiku, JP 47 253
Nito, Yasuhiro Yokohama, JP 48 1109
Noguchi, Tetsuro Hachioji, JP 40 191
Oguri, Isamu Yokohama, JP 31 135
Taguri, Ryo Kawasaki, JP 26 114

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