Inventor · disambiguated record
Takuya Matsumoto
Also filed as: MATSUMOTO TAKUYA
267 granted patents·49 pending applications·3,238 citations·filing 1990–2025
99Inventor score
Files withWESTERN DIGITAL TECH INC30MATSUMOTO TAKUYA27MITSUBISHI MOTORS CORP24HITACHI LTD22TOSHIBA KK22
Top patents by PatentIndex Score
316 records- 0198US6768556B1Near-field optical probe, near-field optical microscope and optical recording/reproducing device with near-field optical probeHITACHI LTD·Filed 2000·Granted Jul 27, 2004·159 cites·20 claims
- 0298US6649894B2Optical near field generatorHITACHI LTD·Filed 2002·Granted Nov 18, 2003·117 cites·20 claims
- 0398US6474454B2Damping force control type hydraulic shock absorberTOKICO LTD·Filed 2001·Granted Nov 5, 2002·114 cites·7 claims
- 0497US10825478B1Magnetic recording apparatus and method of controlling magnetic head thereofTOSHIBA KK·Filed 2020·Granted Nov 3, 2020·8 cites·14 claims
- 0596US11532329B1Heat-assisted magnetic recording (HAMR) head with main pole having recess for plasmonic materialWESTERN DIGITAL TECH INC·Filed 2022·Granted Dec 20, 2022·6 cites·24 claims
- 0696US8284635B2Head gimbal assembly and information recording apparatusMATSUMOTO TAKUYA·Filed 2009·Granted Oct 9, 2012·34 cites·11 claims
- 0796US7898759B2Thermally assisted magnetic recording head and magnetic recording apparatusHITACHI LTD·Filed 2008·Granted Mar 1, 2011·34 cites·1 claims
- 0896US7100586B2Failure diagnosis system for exhaust gas recirculation deviceTOYOTA MOTOR CO LTD·Filed 2005·Granted Sep 5, 2006·37 cites·4 claims
- 0996US6073610AControl apparatus of internal combustion engine equipped with electronic throttle control deviceMITSUBISHI MOTORS CORP·Filed 1998·Granted Jun 13, 2000·98 cites·26 claims
- 1095US8705323B2TAR temperature sensor having faster response timeHGST Netherlands BV·Filed 2012·Granted Apr 22, 2014·30 cites·12 claims
- 1195US8243561B2Head for thermal assisted magnetic recording device, and thermal assisted magnetic recording deviceMATSUMOTO TAKUYA·Filed 2011·Granted Aug 14, 2012·40 cites·20 claims
- 1295US7359599B2Optical near-field generator and near-field optical recording and reproduction apparatusHITACHI LTD·Filed 2007·Granted Apr 15, 2008·23 cites·6 claims
- 1394US11437069B2Magnetic recording and reproducing deviceTOSHIBA KK·Filed 2021·Granted Sep 6, 2022·5 cites·10 claims
- 1494US9330691B1Microwave assisted magnetic headTOSHIBA KK·Filed 2015·Granted May 3, 2016·18 cites·8 claims
- 1594US9047926B2Dual thermal sensor for HAMR waveguide power monitor and integration with the contact sensorHGST Netherlands BV·Filed 2013·Granted Jun 2, 2015·24 cites·21 claims
- 1694US8854930B1Slider embedded photodetector for optical power monitoring in heat assisted magnetic recordingHGST Netherlands BV·Filed 2013·Granted Oct 7, 2014·22 cites·20 claims
- 1794US8842506B1Heat-assisted magnetic recording (HAMR) disk drive with fly-height sensingHGST Netherlands BV·Filed 2013·Granted Sep 23, 2014·28 cites·17 claims
- 1894US8705327B2Head for thermal assisted magnetic recording device, and thermal assisted magnetic recording deviceMATSUMOTO TAKUYA·Filed 2011·Granted Apr 22, 2014·32 cites·19 claims
- 1994US8619516B1Thermally-assisted recording (TAR) head with conductive layer between the near-field transducer and the write poleMATSUMOTO TAKUYA·Filed 2012·Granted Dec 31, 2013·27 cites·18 claims
- 2093US11657845B1Beam combiner for VCSEL array in HAMR headWESTERN DIGITAL TECH INC·Filed 2022·Granted May 23, 2023·4 cites·20 claims
- 2192US11993902B2Work machine having a breather device for gear caseHONDA MOTOR CO LTD·Filed 2023·Granted May 28, 2024·2 cites·6 claims
- 2292US11854584B1Current assisted HAMR magnetic writerWESTERN DIGITAL TECH INC·Filed 2022·Granted Dec 26, 2023·3 cites·20 claims
- 2392US11328747B1Heat-assisted magnetic recording (HAMR) head with heat sink material adjacent the waveguideWESTERN DIGITAL TECH INC·Filed 2021·Granted May 10, 2022·4 cites·29 claims
- 2492US11250879B1Heat-assisted magnetic recording (HAMR) head with optically reflective shield material adjacent the waveguideWESTERN DIGITAL TECH INC·Filed 2021·Granted Feb 15, 2022·4 cites·20 claims
- 2592US9053716B1Spot size converter with a plurality of branches for HAMR headsHGST Netherlands BV·Filed 2014·Granted Jun 9, 2015·18 cites·14 claims
- 2692US8619514B1Thermally-assisted recording (TAR) head with waveguide having tapered region coupled to near-field transducerMATSUMOTO TAKUYA·Filed 2012·Granted Dec 31, 2013·18 cites·11 claims
- 2792US7732024B2Homeotropic alignment liquid crystal film, optical film comprising the same, and image display deviceNIPPON OIL CORP·Filed 2007·Granted Jun 8, 2010·17 cites·3 claims
- 2892US7529158B2Optical near-field generator and recording apparatus using the optical near-field generatorHITACHI LTD·Filed 2003·Granted May 5, 2009·46 cites·33 claims
- 2992US7133230B2Recording head and information recording apparatusHITACHI LTD·Filed 2003·Granted Nov 7, 2006·40 cites·10 claims
- 3091US11651791B2Heat-assisted magnetic recording (HAMR) head with tapered main pole and heat sink material adjacent the poleWESTERN DIGITAL TECH INC·Filed 2022·Granted May 16, 2023·2 cites·19 claims
- 3191USD858698SSpray gunANEST IWATA CORP·Filed 2018·Granted Sep 3, 2019·47 cites·1 claims
- 3291US9053717B1Photodiode integrated edge emitting laser for heat assisted magnetic recordingHGST Netherlands BV·Filed 2014·Granted Jun 9, 2015·14 cites·17 claims
- 3391US8817107B2Imaging device, imaging device control method and programMATSUMOTO TAKUYA·Filed 2011·Granted Aug 26, 2014·17 cites·17 claims
- 3491US8575529B2Photoelectric converter providing a waveguide along the surface of the mount substrateASAHI NOBUYUKI·Filed 2007·Granted Nov 5, 2013·36 cites·16 claims
- 3591US5750888AFault diagnostic method and apparatus for fuel evaporative emission control systemMITSUBISHI MOTORS CORP·Filed 1996·Granted May 12, 1998·62 cites·27 claims
- 3690US11910747B2Electric work machine with cooling air ventilationHONDA MOTOR CO LTD·Filed 2020·Granted Feb 27, 2024·2 cites·7 claims
- 3790US8705325B2Thermal-assisted magnetic recording head capable of supressing the temperature rise of scattererMATSUMOTO TAKUYA·Filed 2010·Granted Apr 22, 2014·13 cites·19 claims
- 3890US8477570B2Thermally assisted magnetic head assembly and magnetic disk deviceARAI SATOSHI·Filed 2009·Granted Jul 2, 2013·11 cites·14 claims
- 3990US8264918B2Near-field recording device having heating mechanism positioned near a trailing side of a magnetic poleHASHIMOTO MITSUHIRO·Filed 2009·Granted Sep 11, 2012·15 cites·14 claims
- 4089US12119032B1Near-field transducer for heat assisted magnetic recording comprising of thermally stable material layerWESTERN DIGITAL TECH INC·Filed 2023·Granted Oct 15, 2024·2 cites·23 claims
- 4189US11279985B2Non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Mar 22, 2022·2 cites·6 claims
- 4289US10672419B1Magnetic recording and reading apparatus and magnetic recording methodTOSHIBA KK·Filed 2019·Granted Jun 2, 2020·9 cites·20 claims
- 4388US11894018B1Heat-assisted magnetic recording (HAMR) head with main pole having narrow plasmonic recessWESTERN DIGITAL TECH INC·Filed 2022·Granted Feb 6, 2024·2 cites·26 claims
- 4488US9558769B1Anti-reflection waveguide for heat-assisted magnetic recordingHGST Netherlands BV·Filed 2015·Granted Jan 31, 2017·9 cites·20 claims
- 4588US8406094B2Heat-assisted recording head and heat-assisted recording deviceMATSUMOTO TAKUYA·Filed 2010·Granted Mar 26, 2013·11 cites·13 claims
- 4688US8270262B2Thermally assisted magnetic recording head and head assemblyNANIWA IRIZO·Filed 2009·Granted Sep 18, 2012·9 cites·13 claims
- 4788US6821596B2Information recording medium, information recording method, and information reproducing methodHITACHI LTD·Filed 2003·Granted Nov 23, 2004·24 cites·14 claims
- 4887US11295881B2Non-oriented electrical steel sheet, manufacturing method of non-oriented electrical steel sheet, and manufacturing method of motor coreNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Apr 5, 2022·1 cites·11 claims
- 4987US10837537B2TransmissionHONDA MOTOR CO LTD·Filed 2017·Granted Nov 17, 2020·3 cites·5 claims
- 5087US7066160B2Failure diagnosis system for exhaust gas recirculation deviceTOYOTA MOTOR CO LTD·Filed 2005·Granted Jun 27, 2006·17 cites·1 claims
Showing the top 50 of 316 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →