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. 13, 2006
Filed:
Jun. 24, 2004
Yoshihiro Ikari, Moriya, JP;
Akira Kashiwakura, Moriya, JP;
Makoto Miyamoto, Shimotsuma, JP;
Makoto Iimura, Shimotsuma, JP;
Naoki Kitagaki, Moriya, JP;
Yutaka Watanabe, Mitsukaido, JP;
Mayumi Kurokawa, Yuki-gun, JP;
Sonoko Onodera, Yuki-gun, JP;
Yoshihiro Ikari, Moriya, JP;
Akira Kashiwakura, Moriya, JP;
Makoto Miyamoto, Shimotsuma, JP;
Makoto Iimura, Shimotsuma, JP;
Naoki Kitagaki, Moriya, JP;
Yutaka Watanabe, Mitsukaido, JP;
Mayumi Kurokawa, Yuki-gun, JP;
Sonoko Onodera, Yuki-gun, JP;
Hitachi Maxell, Ltd., Osaka, JP;
Abstract
A phase-change optical recording medium capable of performing recording and reproduction at a high speed is provided, in which a reproduced signal output is not only sufficiently large but the phase-change optical recording medium also has excellent repeated rewriting performance. An interface layer, which is composed of a Ge—Si—N-based material, is formed on at least a surface of one side of a recording layerof the phase-change optical recording medium. Accordingly, even when a phase-change material having a high melting point, for example, a Bi—Ge—Te-based phase-change material is used for the recording layer, it is possible to provide the phase-change optical recording medium in which the reproduced signal output is sufficiently large and the repeated rewriting performance is excellent.