Underlayers for heat assisted magnetic recording (HAMR) media
H Yuan, A Ajan, AS Chernyshov… - US Patent 8,941,950, 2015 - Google Patents
Various embodiments provide for a heat assisted magnetic recording (HAMR) media
comprising: a magnetic recording layer; a barrier layer disposed under the magnetic …
comprising: a magnetic recording layer; a barrier layer disposed under the magnetic …
Magnetic disk and method for manufacturing same
C Saito, T Sato, T Kajiwara - US Patent 8,877,359, 2014 - Google Patents
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 …
less noise even with a recording capacity thereof of 250 G or more bits per square inch; and …
Magnetic disk and manufacturing method thereof
K Shimokawa, K Hamakubo, I Kae - US Patent 9,177,586, 2015 - Google Patents
A magnetic disk having at least a magnetic layer, a carbon protective layer, and a lubrication
layer sequentially provided on a substrate. The lubrication layer is a film formed by a …
layer sequentially provided on a substrate. The lubrication layer is a film formed by a …
Recording media with multiple exchange coupled magnetic layers
M Desai, K Kang, J Zhou, BR Acharya - US Patent 9,028,985, 2015 - Google Patents
A magnetic recording (PMR) disk structure is described. The PMR disk structure may include
a magnetic cap** layer being substantially free of an oxide, an upper magnetic layer with …
a magnetic cap** layer being substantially free of an oxide, an upper magnetic layer with …
Lubricant compound for magnetic disk and magnetic disk
K Suzuki, K Shimokawa, K Hamakubo, I Kae - US Patent 9,558,778, 2017 - Google Patents
A lubricant compound is contained in a lubrication layer of a magnetic disk in which at least
a magnetic layer, a protective layer, and a lubrication layer are sequentially provided on a …
a magnetic layer, a protective layer, and a lubrication layer are sequentially provided on a …
Perpendicular magnetic recording medium and process for manufacture thereof
T Onoue - US Patent 9,047,903, 2015 - Google Patents
An object of the present invention is to provide a perpendicu lar magnetic recording medium
in which each space between crystal grains of a first magnetic recording layer is so …
in which each space between crystal grains of a first magnetic recording layer is so …
Magnetic recording medium including tailored exchange coupling layer and manufacturing method of the same
J Yasumori, Y Sonobe - US Patent 9,093,100, 2015 - Google Patents
(57) ABSTRACT A magnetic recording medium enabling excellent magnetic recording
reproduction characteristics to be exhibited with the spacing loss reduced. The magnetic …
reproduction characteristics to be exhibited with the spacing loss reduced. The magnetic …
Evaluation method of magnetic disk, manufacturing method of magnetic disk, and magnetic disk
T Ozawa - US Patent 8,908,315, 2014 - Google Patents
An evaluation method that can easily evaluate properties of a carbon protective film and a
lubricant on a magnetic-disk surface or particularly, an evaluation method of a magnetic disk …
lubricant on a magnetic-disk surface or particularly, an evaluation method of a magnetic disk …
Perpendicular magnetic recording disc
T Sato, T Kajiwara - US Patent 8,828,566, 2014 - Google Patents
US8828566B2 - Perpendicular magnetic recording disc - Google Patents US8828566B2 -
Perpendicular magnetic recording disc - Google Patents Perpendicular magnetic recording disc …
Perpendicular magnetic recording disc - Google Patents Perpendicular magnetic recording disc …