Inventor
DO HOA VAN
US21 patents
⚠️ This page may combine multiple inventors who share the name “DO HOA VAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI GLOBAL STORAGE TECH
15 patentsUS7498092B2Mar 3, 2009
Perpendicular magnetic recording medium with magnetic torque layer coupled to the perpendicular recording layer
HITACHI GLOBAL STORAGE TECH21 citations92
US7081309B2Jul 25, 2006
Magnetic recording disk with antiferromagnetically-coupled magnetic layer having multiple ferromagnetically-coupled lower layers
HITACHI GLOBAL STORAGE TECH20 citations92
US6773834B2Aug 10, 2004
Laminated magnetic recording media with antiferromagnetically coupled layer as one of the individual magnetic layers in the laminate
HITACHI GLOBAL STORAGE TECH29 citations92
US7582368B2Sep 1, 2009
Perpendicular magnetic recording medium with an exchange-spring recording structure and a lateral coupling layer for increasing intergranular exchange coupling
HITACHI GLOBAL STORAGE TECH27 citations91
US7425377B2Sep 16, 2008
Incoherently-reversing magnetic laminate with exchange coupled ferromagnetic layers
HITACHI GLOBAL STORAGE TECH21 citations91
US6723450B2Apr 20, 2004
Magnetic recording medium with antiparallel coupled ferromagnetic films as the recording layer
HITACHI GLOBAL STORAGE TECH34 citations91
US7687157B2Mar 30, 2010
Perpendicular recording media having an exchange-spring structure
HITACHI GLOBAL STORAGE TECH10 citations83
US7758982B2Jul 20, 2010
SiN overcoat for perpendicular magnetic recording media
HITACHI GLOBAL STORAGE TECH3 citations63
US7482071B2Jan 27, 2009
Perpendicular magnetic recording disk with improved recording layer having high oxygen content
HITACHI GLOBAL STORAGE TECH6 citations62
US7125616B2Oct 24, 2006
Magnetic recording disk with antiferromagnetically-coupled magnetic layer having multiple lower layers
HITACHI GLOBAL STORAGE TECH5 citations62
US7556870B2Jul 7, 2009
Antiferromagnetically coupled media for magnetic recording with weak coupling layer
HITACHI GLOBAL STORAGE TECH6 citations61
US7479332B2Jan 20, 2009
Method and apparatus for improving signal-to-noise ratio in longitudinal recording media
HITACHI GLOBAL STORAGE TECH4 citations61
US7180710B2Feb 20, 2007
Magnetic recording medium having three ferromagnetic layers with increasing intrinsic coercivity from the lower to the upper layer
HITACHI GLOBAL STORAGE TECH2 citations61
US7177118B2Feb 13, 2007
Magnetic recording system with three-layer laminated media having improved signal-to-noise ratio
HITACHI GLOBAL STORAGE TECH2 citations61
US6835476B2Dec 28, 2004
Antiferromagnetically coupled magnetic recording media with CoCrFe alloy first ferromagnetic film
HITACHI GLOBAL STORAGE TECH1 citations50