Inventor · disambiguated record
Olav Hellwig
Also filed as: HELLWIG OLAV
34 granted patents·3 pending applications·478 citations·filing 2003–2016
97Inventor score
Files withHITACHI GLOBAL STORAGE TECH10HGST Netherlands BV7HELLWIG OLAV6HITACHI GLOBAL STORAGE TECH NL4HAUET THOMAS3
Top patents by PatentIndex Score
37 records- 0197US8031561B2Joint design of thermally-assisted magnetic recording head and patterned media for high optical efficiencyHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Oct 4, 2011·53 cites·20 claims
- 0297US6947235B2Patterned multilevel perpendicular magnetic recording mediaHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Sep 20, 2005·87 cites·36 claims
- 0395US9530445B1Perpendicular heat-assisted magnetic recording (HAMR) medium with a perovskite oxide intermediate layerHGST Netherlands BV·Filed 2016·Granted Dec 27, 2016·24 cites·20 claims
- 0495US7670696B2Perpendicular magnetic recording medium with patterned magnetic islands and nonmagnetic trenches and manufacturing method for suppressing surface diffusion of trench materialHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Mar 2, 2010·21 cites·19 claims
- 0594US6865044B1Method for magnetic recording on patterned multilevel perpendicular media using thermal assistance and fixed write currentHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Mar 8, 2005·52 cites·6 claims
- 0693US7776388B2Fabricating magnetic recording media on patterned seed layersHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Aug 17, 2010·14 cites·18 claims
- 0793US6882488B1Method for magnetic recording on patterned multilevel perpendicular media using variable write currentHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Apr 19, 2005·46 cites·5 claims
- 0890US9558777B2Heat assisted magnetic recording (HAMR) media having a highly ordered crystalline structureHGST Netherlands BV·Filed 2014·Granted Jan 31, 2017·15 cites·24 claims
- 0989US9324353B2Dual segregant heat assisted magnetic recording (HAMR) mediaHGST Netherlands BV·Filed 2013·Granted Apr 26, 2016·12 cites·23 claims
- 1089US8268461B1Patterned perpendicular magnetic recording medium with ultrathin oxide film and reduced switching field distributionHELLWIG OLAV·Filed 2011·Granted Sep 18, 2012·11 cites·21 claims
- 1189US7862912B2Perpendicular magnetic recording medium and system with low-curie-temperature multilayer for heat-assisted writing and/or readingHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Jan 4, 2011·19 cites·21 claims
- 1289US7514162B2Perpendicular magnetic recording medium with metamagnetic antiferromagnetically-coupled layer between the soft underlayer and recording layerHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Apr 7, 2009·10 cites·16 claims
- 1388US7846565B2Perpendicular magnetic recording disk drive with patterned disk having capping layer for suppression of surface diffusion of trench materialHITACHI GLOBAL STORAGE TECH·Filed 2010·Granted Dec 7, 2010·9 cites·16 claims
- 1488US7732071B2Perpendicular magnetic recording system with patterned medium and manufacturing process for the mediumHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Jun 8, 2010·8 cites·6 claims
- 1586US8399051B1Method for making a patterned perpendicular magnetic recording disk having a FePt or CoPt chemically ordered recording layerHELLWIG OLAV·Filed 2011·Granted Mar 19, 2013·11 cites·27 claims
- 1686US6906879B1Magnetic recording system with patterned multilevel perpendicular magnetic recordingHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jun 14, 2005·44 cites·38 claims
- 1782US8021769B2Patterned perpendicular magnetic recording medium with exchange coupled recording layer structure and magnetic recording system using the mediumHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Sep 20, 2011·5 cites·9 claims
- 1879US8252153B2Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenchesALBRECHT THOMAS R·Filed 2011·Granted Aug 28, 2012·4 cites·5 claims
- 1979US8163405B2System, method and apparatus for multiple anisotropy layered magnetic structures for controlling reversal mechanism and tightening of switching field distribution in bit patterned mediaHAUET THOMAS·Filed 2009·Granted Apr 24, 2012·5 cites·12 claims
- 2079US7960044B2Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenchesHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Jun 14, 2011·3 cites·4 claims
- 2178US10347281B2Structures and methods for templated growth of high areal density heat assisted magnetic recording mediaHGST Netherlands BV·Filed 2015·Granted Jul 9, 2019·5 cites·21 claims
- 2277US8130468B2System and apparatus for patterned media with reduced magnetic trench materialALBRECHT THOMAS ROBERT·Filed 2007·Granted Mar 6, 2012·7 cites·6 claims
- 2376US9280996B2All-optical magnetic recording system using FeMnPt mediaHGST Netherlands BV·Filed 2013·Granted Mar 8, 2016·3 cites·18 claims
- 2476US8129043B2System, method and apparatus for strain-assisted magnetic recording for controlling switching field and tightening switching field distribution in bit patterned mediaHAUET THOMAS·Filed 2009·Granted Mar 6, 2012·4 cites·8 claims
- 2572US7529065B2Laminated magnetic thin films with weak antiferromagnetic coupling for perpendicular magnetic recordingHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 5, 2009·2 cites·10 claims
- 2669US8492010B2Silicon/gold seed structure for crystalline alignment in a film stackHELLWIG OLAV·Filed 2010·Granted Jul 23, 2013·2 cites·15 claims
- 2768US8541116B2Patterned perpendicular magnetic recording disk drive and medium with patterned exchange bridge layer below the data islandsHELLWIG OLAV·Filed 2010·Granted Sep 24, 2013·2 cites·21 claims
- 2854US9058832B2Method of manufacturing a bit patterned media on a magnetic media diskALBRECHT THOMAS ROBERT·Filed 2012·Granted Jun 16, 2015·0 cites·10 claims
- 2948US9147423B2Method for improving a patterned perpendicular magnetic recording disk with annealingGROBIS MICHAEL KONRAD·Filed 2012·Granted Sep 29, 2015·0 cites·14 claims
- 3047US9384773B2Annealing treatment for ion-implanted patterned mediaHGST Netherlands BV·Filed 2013·Granted Jul 5, 2016·0 cites·15 claims
- 3147US8748018B2Patterned perpendicular magnetic recording medium with data islands having a flux channeling layer below the recording layerHAUET THOMAS·Filed 2009·Granted Jun 10, 2014·0 cites·11 claims
- 3246US10014045B2Three-dimensional magnetic memory with multi-layer data storage layersWESTERN DIGITAL TECH INC·Filed 2014·Granted Jul 3, 2018·0 cites·5 claims
- 3346US2016099017A1Layered segregant heat assisted magnetic recording (hamr) mediaHGST Netherlands BV·Filed 2014·Application pending·0 cites
- 3444US8546001B2Fabricating magnetic recording media on patterned seed layersDOBISZ ELIZABETH·Filed 2010·Granted Oct 1, 2013·0 cites·12 claims
- 3541US8911888B2Three-dimensional magnetic memory with multi-layer data storage layersHELLWIG OLAV·Filed 2007·Granted Dec 16, 2014·0 cites·17 claims
- 3639US2012075747A1System, method and apparatus for shape-engineered islands of exchange spring or exchange coupled composite, bit patterned mediaDOBISZ ELIZABETH A·Filed 2010·Application pending·0 cites
- 3737US2012147718A1PATTERNED PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH EXCHANGE-COUPLED COMPOSITE RECORDING STRUCTURE OF A FePt LAYER AND A Co/X MULTILAYERHELLWIG OLAV·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →