Coating processes – Magnetic base or coating
Reexamination Certificate
2007-04-03
2007-04-03
Bashore, Alain L. (Department: 1762)
Coating processes
Magnetic base or coating
C427S131000, C428S690000, C428S690000, C428S690000
Reexamination Certificate
active
10714839
ABSTRACT:
A process for producing a magnetic recording medium having at least one magnetic layer formed above a support is provided. The process includes a step of providing, on at least one side of the support, a smoothing coating layer having a thickness of 0.10 to 1 μm, a surface roughness of at most 5 nm, a number of projections having a height of 20 nm or higher measured by atomic force microscopy (AFM) of at most 20 projections/900 μm2, and an amount of residual solvent of less than 10 mg/m2, and a step of forming at least one magnetic layer on or above the smoothing coating layer without winding up.
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Hashimoto Hiroshi
Takahashi Masatoshi
Tomaru Mikio
Bashore Alain L.
Fuji Photo Film Co. , Ltd.
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