MAGNETIC RECORDING MEDIUM

PURPOSE:To obtain specified magnetic output of a magnetic recording medium having a magnetic layer and a shielding layer independent of thickness of the shielding layer by specifying the residual magnetic flux density of the magnetic layer to >=2,000 emu/cm . CONSTITUTION:The magnetic recording m...

Full description

Saved in:
Bibliographic Details
Main Authors NAKAMURA MINORU, SUENAGA WATARU, IMAIZUMI NAOYUKI
Format Patent
LanguageEnglish
Published 06.11.1991
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
FILLING PASTES
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
INKS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
PHYSICS
POLISHES
USE OF MATERIALS THEREFOR
WOODSTAINS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To obtain specified magnetic output of a magnetic recording medium having a magnetic layer and a shielding layer independent of thickness of the shielding layer by specifying the residual magnetic flux density of the magnetic layer to >=2,000 emu/cm . CONSTITUTION:The magnetic recording medium has a magnetic layer 2 and a shielding layer 5 which completely hides the color phase of the magnetic layer 2. The residual magnetic flux density of the magnetic layer 2 is specified to >=2,000 emu/cm . Namely, by limiting the residual magnetic flux density of the magnetic layer 2 to a specified range independent of thickness of the shielding layer 5, specified magnetic output can be obtained. Thereby, thickness of spacing loss which is determined by the shielding layer 5 can be freely selected and the medium can be formed according to various designs without reducing recording density characteristics.
Bibliography:Application Number: JP19900045238