Patent · US Expired

Optical information recording medium

US6391417B1 · kind B1 · utility

20Cited by
6References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 16, 2000
Grant dateMay 21, 2002
Priority date—
Expiry dateOct 16, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31678
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An optical information recording medium includes a first dielectric protective layer, a recording layer provided on the first dielectric protective layer, including a material represented by a chemical formula of Ag&agr;In&bgr;Sb&ggr;Te&dgr;, wherein &agr;, &bgr;, &ggr; and &dgr; respectively represent an atomic percent of Ag, an atomic percent of In, an atomic percent of Sb, and an atomic percent of Te, and satisfy the conditions of:1&lE;&agr;<10,1<&bgr;&lE;20,35&lE;&ggr;&lE;70,20&lE;&dgr;&lE;35,&agr;+&bgr;+&ggr;+&dgr;=100,4&bgr;&#8722;&dgr;&lE;0,&ggr;&#8722;2&dgr;&gE;0, and&ggr;&#8722;8&agr;&gE;0,a second dielectric protective layer provided on the recording layer, and a light reflection and heat dissipation layer provided on the second dielectric protective layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.