Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Urara Ichihara, Legal Representative0
Sumio Ashida0
Takayuki Tsukamoto0
Tsukasa Nakai0
Katsutaro Ichihara, Deceased0
Keiichiro Yusu0
Naomasa Nakamura0
Noritake Oomachi0
Date of Patent
May 8, 2007
0Patent Application Number
109727680
Date Filed
October 26, 2004
0Patent Primary Examiner
Patent abstract
A phase-change optical recording medium has a recording film that brings about reversible phase-change between a crystalline phase and an amorphous phase upon irradiation with light and an interface film formed in contact with at least one surface of the recording film and comprising hafnium (Hf), silicon (Si), oxygen (O) and carbon (C).
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