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:
Jun. 24, 2008
Filed:
Jul. 04, 2003
Koichi Yasuda, Tokyo, JP;
Koichi Yasuda, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical recording medium includes a substratewith a concave and convex shape for dividing a track area formed on its surface, an optical recording layerhaving a compound consisting of at least tin (Sn), nitrogen (N) and oxygen (O) formed on the surface in which the concave and convex shape is formed and a light transmission layerformed on this optical recording layer Then, a compound composition SnNOof tin (Sn) nitrogen (N) and oxygen (O) comprising the optical recording layeris selected so as to satisfy 30<x<70 (atomic %), 1<y<20 (atomic %) and 20<z<60 (atomic %). According to this arrangement, the optical recording medium can improve jitter caused when Sn is used as a recording material.