Magnetic recording medium and process for the preparation of the same
AssigneeFuji Photo Film Co., Ltd.
InventorsChiaki Mizuno, Hiroshi Ogawa, Shinji Saito, Minoru Kanazawa, Naoyoshi Chino
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AssigneeFuji Photo Film Co., Ltd.
InventorsChiaki Mizuno, Hiroshi Ogawa, Shinji Saito, Minoru Kanazawa, Naoyoshi Chino
Estimating the term…
A magnetic recording medium comprising a nonmagnetic support, a first magnetic recording layer and a second magnetic recording layer, superposed in order, wherein: a coercive force of the second magnetic recording layer is in the range of 400 to 2,000 Oe, a ratio of said coercive force to a coercive force of the first magnetic recording layer being in the range of 1.0 to 2.5; a mean longitudinal length of a magnetic powder contained in the second magnetic recording layer is not longer than 0.35 .mu.m, a ratio of said mean longitudinal length to a mean longitudinal length of a magnetic powder contained in the first magnetic recording layer being in the range of 0.4 to 1.0; and a mixed area of compositions of the first magnetic recording layer and the second magnetic recording layer which has a thickness of 0.1 to 1.1 .mu.m is provided between the first and second magnetic recording layers.
A magnetic recording medium comprising a nonmagnetic support, a first magnetic recording layer and a second magnetic recording layer, superposed in order, wherein:
A process for the preparation of a magnetic recording medium which comprises the steps of:
A process for the preparation of a magnetic recording medium which comprises the steps of:
Dependencies are inferred from the claim text.