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:
May. 24, 2005
Filed:
Aug. 16, 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;
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;
Bayer Aktiengesellschaft, Leverkusen, DE;
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