Title:
INFORMATION RECORDING MEDIUM, MEDIUM MANUFACTURING METHOD, AND INFORMATION RECORDING METHOD AND REPRODUCING METHOD
Document Type and Number:
Japanese Patent JP3509807
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an information recording medium on which rewrite can be performed many times.
SOLUTION: The medium includes: a substrate 1; an interference layer 10; a boundary layer 12; a phase change type recording layer 4; a protection layer 13 containing 23.3 atom.% or more and 32.3 atom.% or less of tin; and a thermal expansion layer 8 from a laser beam incident side.
Inventors:
Miyamoto, Makoto
Hirotsune, Akemi
Shintani, Toshimichi
Kurokawa, Takahiro
Ando, Keikichi
Anzai, Yumiko
Hirotsune, Akemi
Shintani, Toshimichi
Kurokawa, Takahiro
Ando, Keikichi
Anzai, Yumiko
Application Number:
JP2002067823A
Publication Date:
March 22, 2004
Filing Date:
March 13, 2002
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B41M5/26; C22C12/00; C23C14/34; G11B7/24; G11B7/2403; G11B7/24047; G11B7/243; G11B7/2433; G11B7/254; G11B7/257; G11B7/26; G11B7/007; (IPC1-7): G11B7/24
Attorney, Agent or Firm:
作田 康夫
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