Information recording medium

An information recording medium includes a substrate; a laser marking layer that has a reduced reflectance to light with a wavelength of 780 nm or more and that is discolored by irradiation with laser light, the laser marking layer being provided on the substrate; and a shielding layer that transmit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Matsuda Masaru, Morikawa Tomoya, Shinozaki Hideaki, Iikuma Akihiro, Saito Katsumi
Format:	Patent
Sprache:	eng
Schlagworte:	BOOK COVERS BOOKBINDING CALCULATING COLOUR PRINTING COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES HANDLING RECORD CARRIERS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES RECOGNITION OF DATA RECORD CARRIERS SELECTIVE PRINTING MECHANISMS SPECIAL PRINTED MATTER STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	An information recording medium includes a substrate; a laser marking layer that has a reduced reflectance to light with a wavelength of 780 nm or more and that is discolored by irradiation with laser light, the laser marking layer being provided on the substrate; and a shielding layer that transmits infrared light, and that absorbs or reflects visible light, the shielding layer being provided on the laser marking layer.