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:
Aug. 30, 2005
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;
Yuichi Sabi, Tokyo, JP;
Takashi Iwamura, Kamakura, JP;
Mitsuaki Oyamada, Yokohama, JP;
Hidetoshi Watanabe, Chiba, JP;
Sakuya Tamada, Kodaira, JP;
Masanobu Yamamoto, Yokohama, JP;
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;
Yuichi Sabi, Tokyo, JP;
Takashi Iwamura, Kamakura, JP;
Mitsuaki Oyamada, Yokohama, JP;
Hidetoshi Watanabe, Chiba, JP;
Sakuya Tamada, Kodaira, JP;
Masanobu Yamamoto, Yokohama, JP;
Sony Corporation, Tokyo, JP;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
An optical recording medium having at least a recording layerand a light transmitting layerformed on a substrate, in which the recording layeris made of an organic material for absorbing an incident light of wavelength of 360 nm to 460 nm, and inducing physical change or chemical change to vary the refractive index, the light transmitting layeris 10 μm to 177 μm in thickness, the relation between absorption coefficient 'k' and pyrolysis temperature Tof organic material is950(° C.)<(Tdec (° C.)−20)/k<4100° C.  (1),and the absorption coefficient 'k' is k>0.0.