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:
Sep. 21, 1999
Filed:
Aug. 08, 1997
Kyung-sun Min, Yongin, KR;
Sung-hoon Kim, Seoul, KR;
Young-jae Huh, Sungnam, KR;
Soo-hyung Lee, Yongin, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
In the optical recording medium including a substrate having pregrooves, and a metal recording layer, a buffering layer, a reflecting layer and a protecting layer which are sequentially stacked on the substrate, wherein the buffering layer is formed of an organic material having a low light absorption with respect to a laser beam of 600.about.800 nm, such that light absorption (k) is less than or equal to 1.0 at 650 nm and the light absorption (k) is less than or equal to 0.1 at 780 nm. Therefore, the optical recording medium can be compatible with a compact disc (CD) and have a high reflectivity at longer wavelength than 600 nm.