Patent
Magnetic disk and method for manufacturing same
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TLDR
In this article, a magnetic disk comprising a granular magnetic recording layer which causes less noise even with a recording capacity thereof of 250 G or more bits per square inch was presented. But the method for manufacturing the same was not described.Abstract:
Provided are a magnetic disk comprising a granular magnetic recording layer which causes less noise even with a recording capacity thereof of 250 G or more bits per square inch; and a method for manufacturing the same. The magnetic disk according to the present invention comprises: a granular magnetic recording layer ( 20 ) which is formed on a disk substrate 10 directly or via an intermediate layer and which has non-magnetic regions between granular columnar particles; and an auxiliary recording layer ( 22 ) which is formed on the granular magnetic recording layer 20 and which causes exchange interaction among the granular columnar particles, wherein the auxiliary recording layer ( 22 ) contains 0.1 to 3 moles of oxygen.read more
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Underlayers for heat assisted magnetic recording (HAMR) media
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References
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Patent
Magnetic recording medium
Takayama Kazuhisa,Fuji Hiroshi +1 more
TL;DR: In this paper, a magnetic recording medium consisting of a foundation layer 3 and a magnetic layer 5 sequentially formed on a substrate has been proposed, and a protective layer 6 is formed on the magnetic layer.
Patent
Magnetic recording medium.
TL;DR: In this article, the back layer is formed with a coating material contg. a filler, a binder and a silicon compd. The back layer has at least three carboxylate ester bonds and having a number average mol.wt.
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David Wachenschwanz,Gerardo A. Bertero,David Treves,Andrew Marian Homola,James L. Fremont Chao,Christopher H. Bajorek +5 more
TL;DR: In this article, a method of forming a discrete track recording pattern on a soft magnetic underlayer of a perpendicular magnetic recording disk is presented, where the underlayer is continuous throughout the recording pattern.
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Circuit and method for refreshing data recorded at a density sufficiently high to undergo thermal degradation
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Release coating for stamper
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