Inventor · disambiguated record
Soichi Oikawa
Also filed as: OIKAWA SOICHI
56 granted patents·28 pending applications·723 citations·filing 2000–2025
98Inventor score
Top patents by PatentIndex Score
84 records- 0199US8064244B2Thin seeded Co/Ni multilayer film with perpendicular anisotropy for spintronic device applicationsZHANG KUNLIANG·Filed 2009·Granted Nov 22, 2011·102 cites·29 claims
- 0297US8320079B2Magnetic head assembly and magnetic recording/reproducing apparatusIWASAKI HITOSHI·Filed 2009·Granted Nov 27, 2012·72 cites·7 claims
- 0396US8472140B2Spin oscillator or magnetic recorder including multiple injection layers in the magnetic recording headYAMADA KENICHIRO·Filed 2012·Granted Jun 25, 2013·24 cites·11 claims
- 0495US8488373B2Spin injection layer robustness for microwave assisted magnetic recordingZHANG KUNLIANG·Filed 2011·Granted Jul 16, 2013·24 cites·23 claims
- 0595US8081397B2Magnetic head assembly and magnetic recording apparatusFUNAYAMA TOMOMI·Filed 2009·Granted Dec 20, 2011·30 cites·21 claims
- 0695US7470474B2Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus including both oxide and non-oxide perpendicular magnetic layersTOSHIBA KK·Filed 2004·Granted Dec 30, 2008·48 cites·16 claims
- 0793US8467148B2Spin torque oscillator, magnetic recording head, magnetic head assembly and magnetic recording apparatusIWASAKI HITOSHI·Filed 2009·Granted Jun 18, 2013·16 cites·13 claims
- 0893US6754020B1Magnetic recording media and magnetic recording/reproduction apparatusesTOSHIBA KK·Filed 2000·Granted Jun 22, 2004·41 cites·24 claims
- 0992US8238058B2Magnetic recording head, magnetic head assembly, and magnetic recording apparatusSHIMIZU MARIKO·Filed 2011·Granted Aug 7, 2012·23 cites·20 claims
- 1092US6699600B2Magnetic recording medium, method of manufacture therefor, and apparatus for magnetic recording and reproducing recordingsSHOWA DENKO KK·Filed 2002·Granted Mar 2, 2004·38 cites·16 claims
- 1192US6682826B2Magnetic recording medium, method of manufacturing therefor, and magnetic read/write apparatusSHOWA DENKO KK·Filed 2002·Granted Jan 27, 2004·40 cites·14 claims
- 1291US6713197B2Perpendicular magnetic recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2001·Granted Mar 30, 2004·30 cites·18 claims
- 1390US8446691B2Magnetic recording deviceTAKAGISHI MASAYUKI·Filed 2012·Granted May 21, 2013·16 cites·20 claims
- 1490US7494725B2Magnetic recording medium, method for manufacturing recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2005·Granted Feb 24, 2009·9 cites·18 claims
- 1588US7416794B2Magnetic recording medium, method for manufacturing recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2005·Granted Aug 26, 2008·7 cites·12 claims
- 1688US7166376B2Magnetic recording medium including a high-magnetostriction layer and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2004·Granted Jan 23, 2007·23 cites·15 claims
- 1787US7867638B2Magnetic recording medium, method for producing thereof, and magnetic recording and reproducing apparatusSHOWA DENKO KK·Filed 2008·Granted Jan 11, 2011·6 cites·12 claims
- 1887US7695832B2Perpendicular magnetic recording medium and perpendicular magnetic recording/reproducing apparatusKANUSHIKI KAISHA TOSHIBA·Filed 2006·Granted Apr 13, 2010·8 cites·18 claims
- 1986US7431999B2Perpendicular magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2005·Granted Oct 7, 2008·7 cites·18 claims
- 2083US8553359B2Magnetic recording head and magnetic recording/reproducing apparatus using the sameYAMADA KENICHIRO·Filed 2010·Granted Oct 8, 2013·7 cites·11 claims
- 2183US6548194B2Perpendicular magnetic recording medium and a magnetic reproducing apparatusTOSHIBA KK·Filed 2001·Granted Apr 15, 2003·17 cites·8 claims
- 2280US7105239B2Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the sameSHOWA DENKO KK·Filed 2002·Granted Sep 12, 2006·13 cites·20 claims
- 2380US6846581B2Perpendicular magnetic recording medium and magnetic recording-reproducing apparatus using the sameTOSHIBA KK·Filed 2002·Granted Jan 25, 2005·14 cites·28 claims
- 2480US6620533B2Magnetic recording mediumTOSHIBA KK·Filed 2001·Granted Sep 16, 2003·14 cites·16 claims
- 2578US7132176B2Perpendicular magnetic recording medium and magnetic recording/reproduction apparatusSHOWA DENKO KK·Filed 2003·Granted Nov 7, 2006·12 cites·18 claims
- 2677US6942936B2Perpendicular magnetic recording medium and magnetic recording/reproduction apparatusSHOWA DENKO KK·Filed 2003·Granted Sep 13, 2005·11 cites·22 claims
- 2776US6884519B2Magnetic recording medium, including an HCP structured Ni-alloy control film method of manufacture therefor, and magnetic read/write apparatusTOSHIBA CORP·Filed 2002·Granted Apr 26, 2005·11 cites·10 claims
- 2875US7601445B2Perpendicular magnetic recording medium and magnetic recording/reproducing apparatusSHOWA DENKO KK·Filed 2004·Granted Oct 13, 2009·10 cites·11 claims
- 2974US7666531B2Perpendicular magnetic recording medium and magnetic recording/reproduction apparatusTOSHIBA KK·Filed 2005·Granted Feb 23, 2010·2 cites·22 claims
- 3074US7622204B2Magnetic recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2005·Granted Nov 24, 2009·2 cites·16 claims
- 3174US7141316B2Perpendicular magnetic recording medium and magnetic recording/reproducing apparatusSHOWA DENKO KK·Filed 2004·Granted Nov 28, 2006·9 cites·13 claims
- 3272US6902835B2Perpendicular magnetic recording medium and magnetic recording apparatusSHOWA DENKO KK·Filed 2003·Granted Jun 7, 2005·8 cites·24 claims
- 3371US7901801B2Perpendicular magnetic recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2008·Granted Mar 8, 2011·5 cites·12 claims
- 3468US10490736B2Magnetic memoryTOSHIBA KK·Filed 2018·Granted Nov 26, 2019·2 cites·17 claims
- 3568US8817419B2Magnetic recording head and magnetic recording apparatusOIKAWA SOICHI·Filed 2011·Granted Aug 26, 2014·2 cites·2 claims
- 3668US7138194B2Magnetic recording medium, method of manufacture therefor, and magnetic read/write apparatusTOSHIBA KK·Filed 2003·Granted Nov 21, 2006·6 cites·15 claims
- 3768US2025098545A1Magnetic memory deviceKIOXIA CORP·Filed 2024·Application pending·0 cites
- 3867US2025295041A1Magnetic memory deviceKIOXIA CORP·Filed 2024·Application pending·0 cites
- 3965US7056606B2Magnetic recording medium, method manufacture therefor, and apparatus for magnetic reproducing and reproducing recordingsTOSHIBA KK·Filed 2004·Granted Jun 6, 2006·5 cites·4 claims
- 4064US12133472B2Magnetic storage deviceKIOXIA CORP·Filed 2021·Granted Oct 29, 2024·0 cites·20 claims
- 4164US8786973B2Thermally assisted magnetic recording medium and thermally assisted magnetic recording apparatusOIKAWA SOICHI·Filed 2012·Granted Jul 22, 2014·1 cites·8 claims
- 4264US8748017B2Magnetic recording mediumSAKURAI MASATOSHI·Filed 2011·Granted Jun 10, 2014·1 cites·12 claims
- 4360US2008090002A1Magnetic recording medium, method for manufacturing recording medium and magnetic recording apparatusTOSHIBA KK·Filed 2007·Application pending·0 cites
- 4460US2008260942A1Magnetic recording medium, method for manufacturing recording medium and magnetic recordation apparatusTOSHIBA KK·Filed 2007·Application pending·0 cites
- 4559US10374150B2Magnetic memory deviceTOSHIBA KK·Filed 2018·Granted Aug 6, 2019·1 cites·20 claims
- 4659US10360960B2Magnetic memory deviceTOSHIBA KK·Filed 2017·Granted Jul 23, 2019·1 cites·19 claims
- 4759US10262711B2Magnetic memoryTOSHIBA KK·Filed 2017·Granted Apr 16, 2019·1 cites·20 claims
- 4857US2009310254A1Magnetic recording medium and magnetic recording/reproduction apparatus using the sameTOSHIBA KK·Filed 2009·Application pending·0 cites
- 4956US10897007B2Magnetic memory deviceTOSHIBA KK·Filed 2019·Granted Jan 19, 2021·0 cites·20 claims
- 5056US10453513B2Magnetic memory deviceTOSHIBA KK·Filed 2018·Granted Oct 22, 2019·0 cites·20 claims
Showing the top 50 of 84 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →