Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Spatial relationship specified between color-former and...
Patent
1994-07-06
1997-05-06
Hess, B. Hamilton
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Spatial relationship specified between color-former and...
427150, 503201, 503217, B41M 540
Patent
active
056271263
ABSTRACT:
A reversible thermosensitive recording medium is composed of a support and a reversible thermosensitive recording layer whose transparency or color reversibly changes by the application of heat thereto formed on the support. The reversible thermosensitive recording layer has a thermal pressure level difference of 40% or less, land a thermal pressure level difference change ratio of 70% or less.
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Amano Tetsuya
Hotta Yoshihiko
Kawaguchi Makoto
Hess B. Hamilton
Ricoh & Company, Ltd.
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