Magnetic recording medium
AssigneeTDK Corporation
InventorYoshio Kawakami
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Abstract
In a magnetic recording medium comprising a substrate and a magnetic layer formed thereon and composed of magnetic powder dispersed in a polymer binder, an improvement wherein said substrate is made of a polyethylene terephthalate having a refractive index of at least 1.499 in the direction of the thickness of the substrate.
Claims1
In a magnetic recording medium comprising a substrate and a magnetic layer formed thereon and composed of magnetic powder dispersed in a polymer binder, an improvement wherein said substrate is made of a polyethylene terephthalate having a refractive index of at least 1.499 in the direction of the thickness of the substrate, said substrate being treated on the side on which said magnetic layer is formed with corona discharge treatment.
Dependencies are inferred from the claim text.