Patent · US Expired

Magnetic recording medium for image recording

US4693934A · kind A · utility

8Cited by
8References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 29, 1985
Grant dateSep 15, 1987
Priority date
Expiry dateMay 29, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/265
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Magnetic recording tape comprising a ferromagnetic thin film on a non-magnetic base and having good running stability and low output fluctuation, clogging, and dropout can be obtained by making the stiffness of the overall tape EQU 0.149.times.wa.sup.3 /dxb=0.02 to 0.12 g mm wherein PA1 w: load (g) PA1 a: radius of tape ring (mm) PA1 b: tape width (mm) PA1 d: deformation of tape ring (mm) The stiffness in the above formula can be determined by the method described in the specification.

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