Inventor · disambiguated record
Ikuko Takekuma
Also filed as: TAKEKUMA IKUKO
19 granted patents·11 pending applications·91 citations·filing 2003–2014
92Inventor score
Files withHITACHI GLOBAL STORAGE TECH17HGST Netherlands BV3TAKEKUMA IKUKO3HITACHI LTD2NEMOTO HIROAKI2
Top patents by PatentIndex Score
30 records- 0193US7368185B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted May 6, 2008·35 cites·12 claims
- 0283US8679654B2Magnetic recording medium including plural FePt alloy layers including carbon, oxides or nitridesNEMOTO HIROAKI·Filed 2012·Granted Mar 25, 2014·3 cites·10 claims
- 0383US8000060B2Perpendicular magnetic recording medium and system having a magnetic recording layer with a perpendicular recording layer, a magnetic coupling layer, and a writing assist layerHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Aug 16, 2011·7 cites·23 claims
- 0482US7033686B2Perpendicular magnetic recording medium and method of manufacturing itHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Apr 25, 2006·14 cites·5 claims
- 0580US7618722B2Perpendicular magnetic recording media and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2008·Granted Nov 17, 2009·3 cites·19 claims
- 0680US7457064B2Perpendicular magnetic recording medium, method of evaluating magnetic properties of the sameHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Nov 25, 2008·4 cites·6 claims
- 0780US6916557B2Perpendicular magnetic recording mediaHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jul 12, 2005·12 cites·8 claims
- 0879US7641989B2Perpendicular magnetic recording medium for high density recording and manufacturing of the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 5, 2010·3 cites·11 claims
- 0978US7701667B2Perpendicular magnetic recording medium and magnetic storage apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Apr 20, 2010·3 cites·12 claims
- 1077US8771849B2Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the sameNEMOTO HIROAKI·Filed 2008·Granted Jul 8, 2014·3 cites·20 claims
- 1172US9117477B2Perpendicular magnetic recording media having novel seed layerHGST Netherlands BV·Filed 2013·Granted Aug 25, 2015·2 cites·19 claims
- 1269US7534507B2Perpendicular magnetic recording medium for high density magnetic recording and manufacturing of the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 19, 2009·1 cites·5 claims
- 1368US7651795B2Perpendicular magnetic recording medium and manufacturing of the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 26, 2010·1 cites·6 claims
- 1461US2008186627A1Perpendicular magnetic recording medium with granular structured magnetic recording layer, method for producing the same, and magnetic recording apparatusHITACHI GLOBAL STORAGE TECH·Filed 2008·Application pending·0 cites
- 1556US7625646B2Perpendicular magnetic recording medium and method of manufacturing itHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Dec 1, 2009·0 cites·7 claims
- 1654US7510789B2Perpendicular magnetic recording mediaHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Mar 31, 2009·0 cites·5 claims
- 1754US2006088737A1Perpendicular magnetic recording medium with granular structured magnetic recording layer, method for producing the same, and magnetic recording apparatusHITACHI GLOBAL STORAGE TECH·Filed 2005·Application pending·0 cites
- 1852US9472228B2Perpendicular magnetic recording media having novel magnetic under-layer structureHGST Netherlands BV·Filed 2013·Granted Oct 18, 2016·0 cites·17 claims
- 1952US7625644B2Perpendicular magnetic recording medium and manufacturing of the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Dec 1, 2009·0 cites·12 claims
- 2049US2007254189A1Magnetic storage deviceHITACHI GLOBAL STORAGE TECH·Filed 2007·Application pending·0 cites
- 2148US2009073599A1Perpendicular magnetic recording medium and magnetic recording and reproducing apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2008·Application pending·0 cites
- 2247US2016118071A1Perpendicular magnetic recording medium and magnetic storage apparatus using the sameHGST Netherlands BV·Filed 2014·Application pending·0 cites
- 2346US2009116137A1Perpendicular magnetic recording medium and magnetic storage apparatus using the sameTAKEKUMA IKUKO·Filed 2008·Application pending·0 cites
- 2445US8709618B2Magnetic storage apparatusTAKEKUMA IKUKO·Filed 2007·Granted Apr 29, 2014·0 cites·18 claims
- 2545US2006076233A1Magnetic recording medium and method for production thereofHITACHI GLOBAL STORAGE TECH·Filed 2005·Application pending·0 cites
- 2644US10276192B2Perpendicular magnetic recording mediumWESTERN DIGITAL TECH INC·Filed 2013·Granted Apr 30, 2019·0 cites·15 claims
- 2742US2005058854A1Perpendicular magnetic recording medium and manufacturing of the sameHITACHI LTD·Filed 2004·Application pending·0 cites
- 2840US2004146747A1Perpendicular magnetic recording mediumHITACHI LTD·Filed 2003·Application pending·0 cites
- 2938US2012214021A1Magnetic recording medium and magnetic recording apparatusSAYAMA JUNICHI·Filed 2012·Application pending·0 cites
- 3032US2012052330A1Perpendicular magnetic recording medium and manufacturing method of the sameTAKEKUMA IKUKO·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →