Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuji Horie0
Kazuei Yamaguchi0
Mitsuru Saito0
Noriyuki Kumasaka0
Date of Patent
May 20, 2008
0Patent Application Number
116054970
Date Filed
November 27, 2006
0Patent Primary Examiner
Patent abstract
Texturing slurry for texturing a substrate for a magnetic hard disk is obtained by dispersing abrading particles of a specified kind in a specified kind of dispersant. The abrading particles include diamond clusters formed with artificial diamond particles with primary particle diameter of 20 nm or less and surrounded by impurities containing chlorine at a certain ratio. The cluster diameter and the average cluster diameter of the diamond clusters are each within a specified range. For texturing a substrate surface, the substrate is rotated, texturing slurry of this invention is supplied to the surface and a texturing tape of a specified kind is pressed against the substrate surface while it is caused to run.
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