Patent ID: 6746749
Filing Date: 2004-06-08
Classification: G11B,Y10T

Abstract:
A magnetic storage apparatus comprising:a magnetic recording medium comprising a substrate, an inorganic compound underlayer including a first oxide having a crystalline grain structure and a second oxide having a non-crystalline structure formed over the substrate, wherein the second oxide is formed along the grain boundaries of the first oxide, a magnetic layer formed over the underlayer; wherein the inorganic compound underlayer has a honeycomb structure, and further wherein a material contained in the inorganic compound underlayer that forms a non-crystalline portion is &frac16; or more; a magnetic recording medium driver for driving the magnetic recording medium; a magnetic head for writing into and reading from the magnetic recording medium; a head access system for driving the magnetic head; and a read/write signal processing system for processing the read/write signals to and from the magnetic head.