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. 10, 2014
Filed:
Sep. 09, 2011
Applicants:
Takeshi Miki, Tokyo, JP;
Yuki Tauchi, Hyogo, JP;
Inventors:
Takeshi Miki, Tokyo, JP;
Yuki Tauchi, Hyogo, JP;
Assignees:
Sony Corporation, Tokyo, JP;
Kabushiki Kaisha Kobe Seiko Sho, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01);
U.S. Cl.
CPC ...
Abstract
An optical recording medium including a substrate and two or more recording layers that contain Pd, O, and M (M comprises at least one of Zn, Al, In, and Sn), where O is contained in an amount greater than a stoichiometric composition thereof when M is completely oxidized (into ZnO, AlO, InO, and SnO). An nth recording layer of the two or more recording layers, as counted from an opposite side of an incident side of recording light, has a Pd content that is less than that of an (n−1)th recording layer.