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.

Date of Patent:
Dec. 03, 2013

Filed:

Sep. 16, 2010
Applicants:

Yuki Tauchi, Kobe, JP;

Yoko Shida, Kobe, JP;

Takeshi Miki, Tokyo, JP;

Yasuhiro Sone, Tokyo, JP;

Inventors:

Yuki Tauchi, Kobe, JP;

Yoko Shida, Kobe, JP;

Takeshi Miki, Tokyo, JP;

Yasuhiro Sone, Tokyo, JP;

Assignees:

Kobe Steel, Ltd., Kobe-shi, JP;

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01);
U.S. Cl.
CPC ...
Abstract

A recording layer for optical information recording medium excellent in recording property, an optical information recording medium including the recording layer and a sputtering target useful for formation of the recording layer are provided. A recording layer for an optical information recording medium on which recording is performed through irradiation with laser light, the recording layer including an oxide of a metal of which an absolute value of the standard free energy of oxide formation per 1 mol of oxygen is larger than that of Pd (hereinafter referred to metal X) and a Pd oxide, wherein the Pd oxide includes a Pd monoxide and a Pd dioxide, and wherein a ratio of the Pd atom to a total of the metal X atom and the Pd atom which are contained in the recording layer is 4 to 85 atomic %.


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