Patent · US Expired

Magnetic recording medium and magnetic recording device

US6713196B1 · kind B1 · utility

1Cited by
6References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 27, 2000
Grant dateMar 30, 2004
Priority date
Expiry dateNov 27, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12854
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

The present invention provides a high-density, low-noise magnetic recording medium. This magnetic recording medium includes a substrate, a non-magnetic underlayer formed on the substrate, and a magnetic recording layer formed on the underlayer. The magnetic recording layer contains cobalt as the main component, 10 atm % to 18 atm % of chromium, 5 atm % to 20 atm % of platinum, and 10 atm % to 20 atm % of boron.

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