Management technique of friction coefficient based on...

Details Management technique of friction coefficient based on... Management technique of friction coefficient based on...

2007-05-22

2007-05-22

Kiliman, Leszek (Department: 1773)

Coating processes

Magnetic base or coating

Magnetic coating

C427S129000, C427S130000, C428S690000, C428S690000

Reexamination Certificate

active

10761771

ABSTRACT:
There are disclosed an information recording medium substrate having a surface roughness of Rmax 15 nm or less, and an information recording medium, particularly an information recording medium substrate and information recording medium in which for surfaces of the substrate and medium, a bearing area value (offset bearing area value) in a depth of 0.5 to 5 nm (predetermined slice level) from a bearing height (real peak height) corresponding to the bearing area value of 0.2% to 1.0% is 90% or less, and a manufacture method of the substrate and medium.

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