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:
Mar. 13, 2012
Filed:
Jun. 05, 2007
Takashi Nishihara, Osaka, JP;
Rie Kojima, Osaka, JP;
Noboru Yamada, Osaka, JP;
Toshiyuki Matsunaga, Osaka, JP;
Takashi Nishihara, Osaka, JP;
Rie Kojima, Osaka, JP;
Noboru Yamada, Osaka, JP;
Toshiyuki Matsunaga, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An information recording medium is provided that has high recording sensitivity and high erasability, even when a recording layer thereof is as thin as about 3 nm. An information recording mediumon which information can be recorded by applying light or electrical energy has at least a recording layerthat undergoes phase change, while the recording layercontains at least one element selected from among Zn, Si and C, and Sb in total proportion of 85 atomic % or more and has a composition preferably represented by the formula SbM1(atomic %) (wherein M1 represents at least one element selected from among Zn, Si and C, and a1 is a proportion in terms of atomic % that satisfies a relationship of 0<a1≦50).