Patent · US Expired

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

US6896945B2 · kind B2 · utility

1Cited by

10References

21Claims

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

Key dates

Filing date	Aug 16, 2002
Grant date	May 24, 2005
Priority date	—
Expiry date	Sep 22, 2022

Classification

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

Abstract

The invention relates to an optical data carrier having a preferably transparent substrate that has optionally previously been coated with one or more reflection layers and to the surface of which has been applied a light-writeable information layer, optionally one or more reflection layers, and optionally a protective layer or a further substrate or a covering layer, such that the optical data carrier can be written on or read by means of blue light (preferably laser light having a specified wavelength) or by means of infrared light (preferably laser light having a specified wavelength), wherein the information layer contains

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