Patent · US Expired

Phase changeable material

US4820394A · kind A · utility

26Cited by
14References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 1, 1986
Grant dateApr 11, 1989
Priority date
Expiry dateDec 1, 2006

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2007/25715
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Disclosed is a projected beam switchable data storage device having a state changeable memory material. The memory material is a multi-phase system having substantially continuous, dielectric, ceramic phase and discrete cells of a state switchable phase.

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