Recording layer for optical information recording medium, optical information recording medium, and sputtering target

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United States of America Patent

PATENT NO 8530024
APP PUB NO 20120177863A1
SERIAL NO

13496079

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Abstract

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A recording layer excellent in recording property, an optical information recording medium including the recording layer, and a sputtering target for producing the recording layer. The recording layer on which recording is performed through irradiation with a laser light, contains: a Pd oxide; a Ag oxide; and an oxide of a metal X of having an absolute value of the standard free energy of oxide formation per 1 mol of oxygen that is larger than an oxide of Pd and Ag, wherein a ratio of Pd atom to a total (metal X atom+Pd atom+Ag atom) is from 10 to 60 atomic %, a ratio of Ag atom to the total is from 5 to 45 atomic %, and a ratio of Pd atom and the Ag atom to the total is 75 atomic % or less.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATIONTOKYO 108-0075
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL LTD )KOBE-SHI HYOGO 651-8585

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shida, Yoko Kobe, JP 16 23
Sone, Yasuhiro Miyagi, JP 10 13
Tauchi, Yuki Kobe, JP 27 183

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