Magnetic recording medium and magnetic recording and reproducing device
AssigneeFUJIFILM Corporation
InventorsNaoki Sano, Takuto Kurokawa, Norihito Kasada, Eiki Ozawa
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Abstract
The magnetic recording medium includes a non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, in which a difference (S0.5−S13.5) between a spacing S0.5 measured by optical interferometry regarding a surface of the magnetic layer under a pressing force of 0.5 atm after n-hexane cleaning and a spacing S13.5 measured by optical interferometry regarding the surface of the magnetic layer under a pressing force of 13.5 atm after n-hexane cleaning is equal to or smaller than 3.0 nm, and a magnetic recording and reproducing device including this magnetic recording medium.
Claims14
A magnetic recording medium comprising:
- a non-magnetic support;
- and
- a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support,
- wherein a difference S0.5−S13.5 between a spacing S0.5 measured by optical interferometry regarding a surface of the magnetic layer under a pressing force of 0.5 atm after n-hexane cleaning and a spacing S13.5 measured by optical interferometry regarding the surface of the magnetic layer under a pressing force of 13.5 atm after n-hexane cleaning is equal to or smaller than 3.0 nm.
Dependencies are inferred from the claim text.