The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2003
Filed:
Mar. 20, 2002
Horst Berneth, Leverkusen, DE;
Friedrich-Karl Bruder, Krefeld, DE;
Wilfried Haese, Odenthal, DE;
Rainer Hagen, Leverkusen, DE;
Karin Hassenrück, Düsseldorf, DE;
Serguei Kostromine, Swisttal, DE;
Peter Landenberger, Köln, DE;
Rafael Oser, Krefeld, DE;
Thomas Sommermann, Bergisch Gladbach, DE;
Josef-Walter Stawitz, Odenthal, DE;
Thomas Bieringer, Odenthal, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
An optical data storage medium containing a preferably transparent substrate which has optionally already been coated with one or more reflecting layers and onto the surface of which a photorecordable information layer, optionally one or more reflecting layers, and optionally a protective layer or an additional substrate or a top layer are applied, which data storage medium can be recorded on and read using blue or red light, preferably laser light, wherein the information layer contains a light-absorbing compound and optionally a binder, characterized in that at least one triazacyanine dye is used as the light-absorbing compound.