Magnetic recording medium for magnetic encoder

摘要

A magnetic recording medium for a magnetic encoder which has an alumite magnetic film that magnetic metal is precipitated in pores of porous aluminum oxide film so that the diameter of the pore is 80 to 200 Angstroms and the depth thereof is 3 to 100 microns. Thus, the magnetic recording medium can magnetically record in a high density and can be fabricated inexpensively.