US Patent 7214416 Phase-change optical recording medium
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Patent Inventor Names
Katsutaro Ichihara, Deceased0
Keiichiro Yusu0
Naomasa Nakamura0
Noritake Oomachi0
Sumio Ashida0
Takayuki Tsukamoto0
Tsukasa Nakai0
Urara Ichihara, Legal Representative0
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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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US Patent 07214416 Phase-change optical recording medium US Patent 7214416 Phase-change optical recording medium
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Patent Number
072144160
Patent Number
72144160
Edits on 27 Apr, 2023
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Patent Jurisdiction
Patent Number
072144160
Date of Patent
May 8, 2007
0Patent Application Number
109727680
Date Filed
October 26, 2004
0Official Website
Patent Primary Examiner
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US Patent 07214416 Phase-change optical recording medium
Infobox
Is a
Patent jurisdiction
Patent number
07214416
Date of patent
May 8, 2007
Patent application number
10972768
Date Filed
October 26, 2004
Patent primary examiner
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