Process for recording into rewritable recording medium of...

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

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C430S945000

Reexamination Certificate

active

07972990

ABSTRACT:
In a process for recording into a rewritable recording medium of a non-contact type, when adjacent lines or adjacent overlapping lines are drawn by scanning the medium having a reversible heat sensitive color developing layer on a substrate with laser light and a second line2is drawn after a first line1is drawn, the time between the start of drawing1and the end of drawing2and/or the width of the overlapped portion r is controlled as the means for suppressing discoloration of the recorded lines by interference between heat remaining after1has been drawn and heat generated while2is drawn. When characters, bar codes, solid images or figures are drawn into a rewritable recording medium of the non-contact type by scanning with laser light, excellent readability and visibility of the bar codes can be obtained in recording a plurality of line elements.

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European Search Report for EP 07 11 4954 dated Mar. 12, 2010.
J. Siegel et al, “Rewritable phase-change optical recording in Ge2Sb2Te5 films induced by pico-second laser pulses,”Applied Physics Letters, vol. 84, No. 13, Mar. 19, 2009.
J. Solis et al, “Ultra-short-laser-pulse-driven rewritable phase-change optical recording in Sb-based films,”Applied Physics A(Materials Science Processing, Mar. 2003, Springer-Verlag Germany* (abstract only enclosed).

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