Patent · US Expired

Optical data carrier comprising a cyanine dye as light-absorbent compound in the information layer

US7041354B2 · kind B2 · utility

0Cited by

7References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Horst Berneth · Leverkusen, DE
Friedrich-Karl Bruder · Krefeld, DE
Wilfried Haese · Rheydt, DE
Rainer Hagen · Leverkusen, DE
Karin Hassenruck · Mülheim an der Ruhr, DE
Serguei Kostromine · Rheinbach, DE
Peter Landenberger
Rafael Oser · Krefeld, DE
Thomas Sommermann · Bensberg, DE
Josef-Walter Stawitz · Cologne, DE
Thomas Bieringer · Odenthal, DE

Key dates

Filing date	Sep 29, 2004
Grant date	May 9, 2006
Priority date	—
Expiry date	Sep 29, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/21
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Optical data carrier comprising a preferably transparent substrate which may, if desired, have previously been coated with one or more reflection layers and to whose surface a light-writeable information layer, if desired one or more reflection layers and if desired a protective layer or a further substrate or a covering layer have been applied, which can be written on or read by means of blue, red or infrared light, preferably laser light, where the information layer comprises a light-absorbent compound and, if desired, a binder, characterized in that at least one cyanine dye is used as light-absorbent compound.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.