Patent · US Expired

Radial tilt reduced media

US7309518B2 · kind B2 · utility

1Cited by
34References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 8, 2005
Grant dateDec 18, 2007
Priority date
Expiry dateApr 20, 2026

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/26
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A storage media can comprise: a plastic substrate, an optical layer, a reflective layer disposed between the optical layer and the substrate, and an adhesive layer disposed between the optical layer and the reflective layer. The optical layer can have an optical layer composition different from the substrate composition. The storage media has a radial deviation over time of less than or equal to 1.15 degrees at a radius of 55 mm, when exposed to a cycle at 25° C. of 50% relative humidity—90% relative humidity—50% relative humidity.

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