Inventor · disambiguated record
Hoa Van Do
Also filed as: DO HOA · DO HOA V · DO HOA VAN
30 granted patents·6 pending applications·428 citations·filing 1993–2013
97Inventor score
Files withHITACHI GLOBAL STORAGE TECH18HITACHI GLOBAL STORAGE TECH NL4IBM3BIAN XIAOPING2HMT TECHNOLOGY CORP2
Top patents by PatentIndex Score
36 records- 0195US7582368B2Perpendicular magnetic recording medium with an exchange-spring recording structure and a lateral coupling layer for increasing intergranular exchange couplingHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Sep 1, 2009·27 cites·12 claims
- 0295US7498092B2Perpendicular magnetic recording medium with magnetic torque layer coupled to the perpendicular recording layerHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Mar 3, 2009·21 cites·33 claims
- 0394US5567512AThin carbon overcoat and method of its makingHMT TECHNOLOGY CORP·Filed 1993·Granted Oct 22, 1996·71 cites·5 claims
- 0493US5679431ASputtered carbon overcoat in a thin-film medium and sputtering methodHMT TECHNOLOGY CORP·Filed 1994·Granted Oct 21, 1997·55 cites·12 claims
- 0591US7687157B2Perpendicular recording media having an exchange-spring structureHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Mar 30, 2010·10 cites·26 claims
- 0691US6372330B1Laminated magnetic recording media with antiferromagnetically coupled layers as the individual magnetic layers in the laminateIBM·Filed 2000·Granted Apr 16, 2002·44 cites·18 claims
- 0789US8168310B2Perpendicular magnetic recording media with oxide-containing exchange coupling layerBIAN XIAOPING·Filed 2009·Granted May 1, 2012·10 cites·14 claims
- 0889US7425377B2Incoherently-reversing magnetic laminate with exchange coupled ferromagnetic layersHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Sep 16, 2008·21 cites·16 claims
- 0985US7556870B2Antiferromagnetically coupled media for magnetic recording with weak coupling layerHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jul 7, 2009·6 cites·16 claims
- 1085US7081309B2Magnetic recording disk with antiferromagnetically-coupled magnetic layer having multiple ferromagnetically-coupled lower layersHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Jul 25, 2006·20 cites·14 claims
- 1185US6723450B2Magnetic recording medium with antiparallel coupled ferromagnetic films as the recording layerHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Apr 20, 2004·34 cites·20 claims
- 1284US7482071B2Perpendicular magnetic recording disk with improved recording layer having high oxygen contentHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 27, 2009·6 cites·5 claims
- 1384US6773834B2Laminated magnetic recording media with antiferromagnetically coupled layer as one of the individual magnetic layers in the laminateHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Aug 10, 2004·29 cites·18 claims
- 1482US8263239B2Laminated magnetic thin films for magnetic recording with weak ferromagnetic couplingBERGER ANDREAS KLAUS·Filed 2006·Granted Sep 11, 2012·7 cites·18 claims
- 1582US7989096B2Perpendicular recording media having an exchange-spring structureHITACHI GLOBAL STORAGE TECH NL·Filed 2010·Granted Aug 2, 2011·5 cites·28 claims
- 1680US7479332B2Method and apparatus for improving signal-to-noise ratio in longitudinal recording mediaHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 20, 2009·4 cites·7 claims
- 1778US7758982B2SiN overcoat for perpendicular magnetic recording mediaHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jul 20, 2010·3 cites·11 claims
- 1875US9552837B2Vertically and horizontally weakly coupled perpendicular small grain mediaHGST Netherlands BV·Filed 2013·Granted Jan 24, 2017·3 cites·21 claims
- 1974US7862913B2Oxide magnetic recording layers for perpendicular recording mediaHITACHI GLOBAL STORAGE TECH NL·Filed 2006·Granted Jan 4, 2011·2 cites·12 claims
- 2073US6537638B2Magnetic recording disk with perpendicular magnetic recording layer and multilayered underlayer structureIBM·Filed 2000·Granted Mar 25, 2003·29 cites·9 claims
- 2169US6670032B2Oriented magnetic medium on a nonmetallic substrateHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Dec 30, 2003·7 cites·9 claims
- 2264US8747628B2Perpendicular magnetic recording media with oxide-containing exchange coupling layerBIAN XIAOPING·Filed 2012·Granted Jun 10, 2014·1 cites·20 claims
- 2364US7125616B2Magnetic recording disk with antiferromagnetically-coupled magnetic layer having multiple lower layersHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Oct 24, 2006·5 cites·7 claims
- 2456US7180710B2Magnetic recording medium having three ferromagnetic layers with increasing intrinsic coercivity from the lower to the upper layerHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Feb 20, 2007·2 cites·23 claims
- 2555US7879470B2Apparatus, system, and method for the selection of perpendicular media segregant materialsHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Feb 1, 2011·0 cites·18 claims
- 2654US7177118B2Magnetic recording system with three-layer laminated media having improved signal-to-noise ratioHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Feb 13, 2007·2 cites·26 claims
- 2750US7976964B2Disk drive with laminated magnetic thin films with sublayers for magnetic recordingHITACHI GLOBAL STORAGE TECH NL·Filed 2005·Granted Jul 12, 2011·0 cites·7 claims
- 2850US2010110584A1Dual oxide recording sublayers in perpendicular recording mediaDAI QING·Filed 2008·Application pending·0 cites
- 2949US2008138662A1Perpendicular magnetic recording medium with multilayer recording structure including intergranular exchange enhancement layerHITACHI GLOBAL STORAGE TECH·Filed 2006·Application pending·0 cites
- 3048US6928723B2Method for making a magnetoresistive sensor having a cobalt-ferrite pinning layerIBM·Filed 2003·Granted Aug 16, 2005·3 cites·13 claims
- 3144US2006210834A1Laminated magnetic thin films with sublayers for magnetic recordingDO HOA V·Filed 2005·Application pending·0 cites
- 3243US2007292721A1Perpendicular magnetic recording mediumBERGER ANDREAS K·Filed 2007·Application pending·0 cites
- 3341US6803119B2Oriented magnetic recording media on a nonmetallic substrateHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Oct 12, 2004·0 cites·1 claims
- 3439US2013235490A1Perpendicular magnetic recording media with seed layer structure containing ruthenium (Ru)DO HOA VAN·Filed 2012·Application pending·0 cites
- 3537US2008057349A1High Performance Perpendicular Media for Magnetic Recording with Optimal Exchange Coupling between Grains of the MediaHITACHI GLOBAL TECHNOLOGIES·Filed 2006·Application pending·0 cites
- 3635US6835476B2Antiferromagnetically coupled magnetic recording media with CoCrFe alloy first ferromagnetic filmHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Dec 28, 2004·1 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →