Inventor · disambiguated record
Koji Shimazawa
Also filed as: SHIMAZAWA KOJI
221 granted patents·19 pending applications·2,762 citations·filing 1998–2025
99Inventor score
Top patents by PatentIndex Score
240 records- 0197US8116034B2Thermally assisted magnetic head having main pole arranged between near-field light-generating portions and manufacturing method of sameKOMURA EIJI·Filed 2008·Granted Feb 14, 2012·44 cites·5 claims
- 0297US8077556B2Thermally assisted magnetic head, head gimbal assembly, and hard disk driveKOMURA EIJI·Filed 2008·Granted Dec 13, 2011·44 cites·7 claims
- 0397US8000178B2Near-field light generating element utilizing surface plasmonTDK CORP·Filed 2008·Granted Aug 16, 2011·52 cites·25 claims
- 0497US7911882B2Thin-film magnetic head with near-field-light-generating layerTDK CORP·Filed 2006·Granted Mar 22, 2011·61 cites·45 claims
- 0597US6381107B1Magneto-resistive tunnel junction head having a shield lead rear flux guideTDK CORP·Filed 2000·Granted Apr 30, 2002·123 cites·18 claims
- 0696US8107325B2Near-field light generating element comprising surface plasmon antenna with surface or edge opposed to waveguideKOMURA EIJI·Filed 2008·Granted Jan 31, 2012·30 cites·20 claims
- 0796US8098547B2Optical waveguide and thermal assist magnetic recording head therewithKOMURA EIJI·Filed 2010·Granted Jan 17, 2012·31 cites·11 claims
- 0896US8023225B2Thermally assisted magnetic head with optical waveguideTDK CORP·Filed 2008·Granted Sep 20, 2011·29 cites·6 claims
- 0996US7821732B2Thermally assisted magnetic head having an asymmetric plasmon antenna and manufacturing method thereofTDK CORP·Filed 2008·Granted Oct 26, 2010·35 cites·7 claims
- 1096US6643104B2Magnetoresistive effect thin-film magnetic headTDK CORP·Filed 2001·Granted Nov 4, 2003·61 cites·16 claims
- 1195US8264919B2Thermal assisted magnetic recording head having spot size converterKOMURA EIJI·Filed 2010·Granted Sep 11, 2012·26 cites·10 claims
- 1295US8223597B2Thermally assisted head having reflection mirror for propagating lightKOMURA EIJI·Filed 2010·Granted Jul 17, 2012·32 cites·11 claims
- 1395US8149653B2Light source unit for thermally-assisted magnetic recording capable of monitoring of light outputSHIMAZAWA KOJI·Filed 2010·Granted Apr 3, 2012·32 cites·14 claims
- 1495US7804655B2Thermally assisted magnetic headTDK CORP·Filed 2007·Granted Sep 28, 2010·32 cites·11 claims
- 1595US6603642B1Magnetic transducer having a plurality of magnetic layers stacked alternately with a plurality of nonmagnetic layers and a fixed-orientation-of-magnetization layer and thin film magnetic head including the magnetic transducerTDK CORP·Filed 2000·Granted Aug 5, 2003·68 cites·14 claims
- 1695US6469879B1Magneto-resistive tunnel junction head with biasing elements abutting free layer extended portionsTDK CORP·Filed 2000·Granted Oct 22, 2002·64 cites·14 claims
- 1794US8369191B2Method for controlling the current of laser diode on thermally assisted magnetic recording headTDK CORP·Filed 2010·Granted Feb 5, 2013·28 cites·5 claims
- 1894US8295010B2Thermally assisted magnetic head, head gimbal assembly, and hard disk driveSHIMAZAWA KOJI·Filed 2008·Granted Oct 23, 2012·17 cites·15 claims
- 1994US8248897B2Method for manufacturing thermally-assisted magnetic recording head comprising light source unit and sliderSHIMAZAWA KOJI·Filed 2010·Granted Aug 21, 2012·28 cites·19 claims
- 2094US8213272B2Multilayered waveguide having protruded light-emitting endTAKAYAMA SEIICHI·Filed 2009·Granted Jul 3, 2012·28 cites·12 claims
- 2194US8014108B2Magnetoresistive device of the CPP type, utilizing insulating layers interposed in shield layers to form a closed magnetic path usable in a disk systemTDK CORP·Filed 2008·Granted Sep 6, 2011·19 cites·19 claims
- 2294US8000175B2Thermally assisted magnetic head having a semiconductor surface-emitting laserTDK CORP·Filed 2009·Granted Aug 16, 2011·18 cites·8 claims
- 2394US7885029B2Thermally-assisted magnetic recording head and thermally-assisted magnetic recording methodTDK CORP·Filed 2009·Granted Feb 8, 2011·17 cites·19 claims
- 2494US7876646B2Thermally assisted magnetic head, head gimbal assembly, and hard disk driveTDK CORP·Filed 2007·Granted Jan 25, 2011·17 cites·5 claims
- 2594US6344954B1Magneto-resistive tunnel junction head with specific flux guide structureTDK CORP·Filed 2000·Granted Feb 5, 2002·57 cites·18 claims
- 2693US8391106B2Heat-assisted magnetic recording head with laser diodeSHIMAZAWA KOJI·Filed 2009·Granted Mar 5, 2013·16 cites·16 claims
- 2793US8149654B2Wave guide that attenuates evanescent light of higher order TM modeKOMURA EIJI·Filed 2010·Granted Apr 3, 2012·21 cites·14 claims
- 2893US7974043B2Thermally assisted magnetic headTDK CORP·Filed 2007·Granted Jul 5, 2011·19 cites·9 claims
- 2993US7957085B2Thermally assisted magnetic head, head gimbal assembly, and hard disk driveTDK CORP·Filed 2007·Granted Jun 7, 2011·21 cites·6 claims
- 3093US6657826B2Magnetoresistive device and method of manufacturing same, thin-film magnetic head and method of manufacturing same, head gimbal assembly and hard disk driveTDK CORP·Filed 2001·Granted Dec 2, 2003·34 cites·8 claims
- 3193US6591481B2Method of manufacturing magnetoresistive device and method of manufacturing thin-film magnetic headTDK CORP·Filed 2001·Granted Jul 15, 2003·44 cites·8 claims
- 3293US6335081B1Tunnel magnetoresistance effect elementTDK CORP·Filed 2000·Granted Jan 1, 2002·40 cites·26 claims
- 3392US8811127B1Magnetic head comprising recording part, reading part, heater for expansion of the recording part, and heater for expansion of the reading partTDK CORP·Filed 2013·Granted Aug 19, 2014·17 cites·11 claims
- 3492US8441895B2Thermally-assisted magnetic recording head with light detector in element-integration surfaceSHIMAZAWA KOJI·Filed 2009·Granted May 14, 2013·13 cites·18 claims
- 3592US8393074B1Method of manufacturing thermally-assisted magnetic recording head and alignment apparatusTAKAYAMA SEIICHI·Filed 2011·Granted Mar 12, 2013·29 cites·15 claims
- 3692US8325566B2Thermally-assisted magnetic recording head having a light source at least inclined from an opposed-to-medium surfaceSHIMAZAWA KOJI·Filed 2009·Granted Dec 4, 2012·13 cites·19 claims
- 3792US8248892B2Head gimbal assembly with two wiring layers comprising thermally-assisted headSHIMAZAWA KOJI·Filed 2010·Granted Aug 21, 2012·19 cites·12 claims
- 3892US8169731B2Near-field light transducer comprising propagation edge with predetermined curvature radiusMIZUNO TOMOHITO·Filed 2009·Granted May 1, 2012·15 cites·12 claims
- 3992US8049997B2Magnetoresistive element including a pair of free layers coupled to a pair of shield layersTDK CORP·Filed 2008·Granted Nov 1, 2011·22 cites·14 claims
- 4092US8014101B2Near-field light generator plate, thermally assisted magnetic head, head gimbal assembly, and hard disk driveTDK CORP·Filed 2007·Granted Sep 6, 2011·13 cites·13 claims
- 4192US7974048B2Magneto-resistive effect device of CPP type having shield layers coupled with ferromagnetic layersTDK CORP·Filed 2007·Granted Jul 5, 2011·22 cites·11 claims
- 4292US7898909B2Thermal-assisted magnetic recording head having substrate and light reflection sectionTDK CORP·Filed 2009·Granted Mar 1, 2011·13 cites·8 claims
- 4392US7855937B2Near-field light generating element and heat-assisted magnetic recording head utilizing surface plasmon modeTDK CORP·Filed 2008·Granted Dec 21, 2010·13 cites·32 claims
- 4492US6482657B2Methods of manufacturing tunnel magnetoresistive element, thin-film magnetic head and memory elementTDK CORP·Filed 2000·Granted Nov 19, 2002·44 cites·12 claims
- 4591US8274867B2Method for aligning the light source unit and the slider of thermally-assisted magnetic recording headMORI NOBUYUKI·Filed 2010·Granted Sep 25, 2012·17 cites·7 claims
- 4691US8194509B2Thermally-assisted magnetic recording head comprising light source with photonic-band layerSHIMAZAWA KOJI·Filed 2009·Granted Jun 5, 2012·11 cites·23 claims
- 4791US8023226B2Thermally assisted magnetic head, head gimbal assembly, and hard disk driveTDK CORP·Filed 2008·Granted Sep 20, 2011·11 cites·9 claims
- 4891US7961438B2Magnetoresistive device of the CPP type, and magnetic disk systemTDK CORP·Filed 2008·Granted Jun 14, 2011·12 cites·11 claims
- 4991US7936531B2Thermally assisted magnetic head having an asymmetric plasmon antenna and manufacturing method thereofTDK CORP·Filed 2008·Granted May 3, 2011·11 cites·9 claims
- 5091US7924658B2Heat-assisted magnetic recording head constituted of slider and light source unit, and manufacturing method of the headTDK CORP·Filed 2008·Granted Apr 12, 2011·12 cites·18 claims
Showing the top 50 of 240 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →