Magnetic recording medium
AssigneeSekisui Kagaku Kogyo Kabushiki Kaisha
InventorsToshinori Takagi, Shinsaku Nakata, Kazuhiko Kanki, Masahiro Hotta
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Abstract
A magnetic recording medium comprising a non-magnetic substrate such as on polyethylene terephthalate film, and deposited on the surface of the substrate by a ionized cluster beam deposition method, at least one ferromagnetic material selected from the group consisting of cobalt, cobalt-containing alloys, mixtures of cobalt with other elements, and chromium dioxide; and a process for production thereof. The magnetic recording medium is characterized by having superior magnetic properties, especially superior coercive force, residual magnetic flux density and squareness ratio, and high mechanical strength.
Claims4
A magnetic recording medium comprising a substrate composed of a non-magnetic material and, deposited on the substrate by an ionized cluster beam deposition method, at least one ferromagnetic material selected from the group consisting of cobalt, cobalt-chromium alloy, cobalt-nickel alloy, cobalt-copper alloy, cobalt-iron alloy, cobalt-gold alloy, cobalt-silicon alloy, cobalt-titanium alloy and chromium dioxide.
Dependencies are inferred from the claim text.