Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Method of use – kit – or combined with marking instrument or...
Reexamination Certificate
2007-03-16
2010-06-08
Hess, Bruce H (Department: 1794)
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Method of use, kit, or combined with marking instrument or...
C503S226000
Reexamination Certificate
active
07732373
ABSTRACT:
To provide a reversible thermosensitive recording medium comprising a support, a thermosensitive recording layer formed on the support, and a protective layer formed on the thermosensitive recording layer, wherein the thermosensitive recording layer contains an electron donative coloring compound and an electron acceptive compound, and the color tone reversibly changes depending on the temperature, and the protective layer contains a polymer of a composition containing two kinds of acrylate compounds selected from an acrylate compound having a pentaerythritol group and an acrylate compound having a dipentaerythritol group.
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Aug. 17, 2007 European Search Report in connection with corresponding European patent application No. EP 07 10 4354.
Arai Satoshi
Sugiyama Nobuyoshi
Tatewaki Tadafumi
Cooper & Dunham LLP
Hess Bruce H
Ricoh & Company, Ltd.
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