Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Noboru Zinbo0
Date of Patent
March 6, 2007
0Patent Application Number
108521290
Date Filed
May 25, 2004
0Patent Primary Examiner
Patent abstract
A magnetic recording medium comprising a support and a magnetic layer containing an abrasive, a binder and ferromagnetic powder dispersed in the binder, wherein the magnetic layer has a thickness of from 20 to 500 nm, the abrasive has a Mohs' hardness of 5 or more and a relative abrasive velocity of less than 200, and value A of a relational expression A=K/Z of an average particle size K of the abrasive and the thickness Z of the magnetic layer is from 0.1 to 3.0.
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