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Patent Searching and Data


Title:
光情報記録装置および光情報記録媒体
Document Type and Number:
Japanese Patent JP4008334
Kind Code:
B2
Abstract:
An optical information recording medium includes a recording layer for recording optical information, a plurality of laminated layers, and a substrate for supporting those layers, while a beam of a specific wavelength is being radiated, a light absorption peak is shifted to a longer or a shorter wavelength side than the peak located before said beam radiation, realizing a high S/N ratio and a high recording density of the medium.

Inventors:
Hiroki Yamamoto
Takashi Naito
Application Number:
JP2002315906A
Publication Date:
November 14, 2007
Filing Date:
October 30, 2002
Export Citation:
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Assignee:
株式会社日立製作所
International Classes:
G11B7/004; G11B7/005; G11B7/24; G11B7/254; G11B7/257
Foreign References:
WO2001027689A1
Attorney, Agent or Firm:
Polaire Patent Business Corporation
Katsuo Ogawa
Kyosuke Tanaka
Takashi Sasaki