Recording medium and manufacturing method of recording medium

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United States of America Patent

PATENT NO 10322594
APP PUB NO 20170253065A1
SERIAL NO

15451595

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A recording medium has a substrate and a first color developing layer, a heat insulating layer and a second color developing layer laminated on the substrate in this order. The first color developing layer develops a first color at a temperature not less than a first threshold value. The second color developing layer develops a second color that is different from the first color at a temperature not less than a second threshold value that is higher than the first threshold value. The heat insulating layer has a first heat insulating layer of a first heat conductivity and a second heat insulating layer of a second heat conductivity that is higher than the first heat conductivity, which are laminated in a second direction orthogonal to a first direction in which the first color developing layer, the heat insulating layer, and the second color developing layer are laminated on the substrate.

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Patent Owner(s)

  • KABUSHIKI KAISHA TOSHIBA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abe, Satoru Yokohama, JP 83 384
Morimoto, Fumitoshi Shirakawa, JP 14 13
Nakano, Takahisa Kawasaki, JP 24 83
Nemoto, Nobuki Kawasaki, JP 17 24

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