Inventor · disambiguated record
Tetsuya Takeuchi
Also filed as: TAKEUCHI TETSUYA
72 granted patents·27 pending applications·1,293 citations·filing 1984–2025
99Inventor score
Top patents by PatentIndex Score
99 records- 0196US5389571AMethod of fabricating a gallium nitride based semiconductor device with an aluminum and nitrogen containing intermediate layerAMANO HIROSHI·Filed 1993·Granted Feb 14, 1995·260 cites·2 claims
- 0295US9437775B2Nitride semiconductor light-emitting deviceUNIV MEIJO·Filed 2014·Granted Sep 6, 2016·20 cites·8 claims
- 0395US7807485B2Process for producing surface emitting laser, process for producing surface emitting laser array, and optical apparatus including surface emitting laser array produced by the processCANON KK·Filed 2009·Granted Oct 5, 2010·22 cites·14 claims
- 0494US6569704B1Group III-V semiconductor light emitting devices with reduced piezoelectric fields and increased efficiencyLUMILEDS LIGHTING LLC·Filed 2000·Granted May 27, 2003·41 cites·9 claims
- 0594US5239188AGallium nitride base semiconductor deviceAMANO HIROSHI·Filed 1992·Granted Aug 24, 1993·163 cites·2 claims
- 0692US7345324B2Light emitting diodes with graded composition active regionsPHILIPS LUMILEDS LIGHTING CO·Filed 2005·Granted Mar 18, 2008·19 cites·15 claims
- 0791US6849472B2Nitride semiconductor device with reduced polarization fieldsLUMILEDS LIGHTING LLC·Filed 2001·Granted Feb 1, 2005·52 cites·20 claims
- 0890US10116120B2Semiconductor multilayer film mirror, vertical cavity type light-emitting element using the mirror, and methods for manufacturing the mirror and the elementUNIV MEIJO·Filed 2017·Granted Oct 30, 2018·5 cites·14 claims
- 0990US7490661B2Heat exchangerDENSO CORP·Filed 2006·Granted Feb 17, 2009·14 cites·15 claims
- 1089US7609745B2Semiconductor laser apparatusCANON KK·Filed 2007·Granted Oct 27, 2009·15 cites·13 claims
- 1188US7796662B2Vertical cavity surface emitting laser and image forming apparatus using the vertical cavity surface emitting laserCANON KK·Filed 2008·Granted Sep 14, 2010·10 cites·6 claims
- 1288US6756325B2Method for producing a long wavelength indium gallium arsenide nitride(InGaAsN) active regionAGILENT TECHNOLOGIES INC·Filed 2002·Granted Jun 29, 2004·37 cites·12 claims
- 1388US6229151B1Group III-V semiconductor light emitting devices with reduced piezoelectric fields and increased efficiencyAGILENT TECHNOLOGIES INC·Filed 1998·Granted May 8, 2001·56 cites·6 claims
- 1487US7839913B2Surface emitting laser, surface emitting laser array, and image forming apparatus including surface emitting laserCANON KK·Filed 2008·Granted Nov 23, 2010·9 cites·20 claims
- 1586US7491976B2Light-emitting element array and image forming apparatusCANON KK·Filed 2007·Granted Feb 17, 2009·9 cites·26 claims
- 1686US6131647ACooling system for cooling hot object in containerDENSO CORP·Filed 1998·Granted Oct 17, 2000·66 cites·5 claims
- 1785US10892601B2Vertical cavity light-emitting elementSTANLEY ELECTRIC CO LTD·Filed 2019·Granted Jan 12, 2021·3 cites·6 claims
- 1885US7830944B2Surface-emitting laser and optical apparatus formed by using surface-emitting laserCANON KK·Filed 2008·Granted Nov 9, 2010·8 cites·8 claims
- 1985US6265475B1High damping material compositionTOKAI RUBBER IND LTD·Filed 1999·Granted Jul 24, 2001·50 cites·15 claims
- 2083US9716209B2Method of manufacturing n-p-n nitride-semiconductor light-emitting device, and n-p-n nitride-semiconductor light-emitting deviceUNIV MEIJO·Filed 2016·Granted Jul 25, 2017·5 cites·5 claims
- 2182US8164104B2Light emitting element array and image forming apparatusTAKEUCHI TETSUYA·Filed 2010·Granted Apr 24, 2012·3 cites·15 claims
- 2281US6955933B2Light emitting diodes with graded composition active regionsLUMILEDS LIGHTING LLC·Filed 2001·Granted Oct 18, 2005·31 cites·16 claims
- 2380US6764926B2Method for obtaining high quality InGaAsN semiconductor devicesAGILENT TECHNOLOGIES INC·Filed 2002·Granted Jul 20, 2004·25 cites·20 claims
- 2479US7786495B2Light-emitting element array and image forming apparatusCANON KK·Filed 2008·Granted Aug 31, 2010·7 cites·22 claims
- 2579US6537513B1Semiconductor substrate and method for making the sameLUMILEDS LIGHTING LLC·Filed 2000·Granted Mar 25, 2003·23 cites·9 claims
- 2678US6829273B2Nitride semiconductor layer structure and a nitride semiconductor laser incorporating a portion of sameAGILENT TECHNOLOGIES INC·Filed 2001·Granted Dec 7, 2004·14 cites·19 claims
- 2777US6683327B2Nucleation layer for improved light extraction from light emitting devicesLUMILEDS LIGHTING LLC·Filed 2001·Granted Jan 27, 2004·30 cites·26 claims
- 2877US6534791B1Epitaxial aluminium-gallium nitride semiconductor substrateLUMILEDS LIGHTING LLC·Filed 1999·Granted Mar 18, 2003·46 cites·7 claims
- 2977US6239490B1P-contact for a Group III-nitride semiconductor device and method of making sameAGILENT TECHNOLOGIES INC·Filed 1998·Granted May 29, 2001·44 cites·5 claims
- 3076US5403436APlasma treating method using hydrogen gasFUJITSU LTD·Filed 1994·Granted Apr 4, 1995·61 cites·12 claims
- 3174US2025151463A1Semiconductor light-emitting device including a plurality of columnar semiconductorsTOYODA GOSEI KK·Filed 2025·Application pending·0 cites
- 3271US6853663B2Efficiency GaN-based light emitting devicesAGILENT TECHNOLOGIES INC·Filed 2001·Granted Feb 8, 2005·10 cites·10 claims
- 3370US7809040B2Red surface emitting laser element, image forming device, and image display apparatusCANON KK·Filed 2008·Granted Oct 5, 2010·2 cites·12 claims
- 3469US7924900B2Surface emitting laser, manufacturing method of surface emitting laser, surface emitting laser array, manufacturing method of surface emitting laser array, and optical apparatus including surface emitting laser arrayCANON KK·Filed 2009·Granted Apr 12, 2011·2 cites·10 claims
- 3568US6696198B2Flat batteryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Feb 24, 2004·9 cites·6 claims
- 3667US8455086B2Transparent laminate film and method for producing sameINUDUKA MASATAKA·Filed 2011·Granted Jun 4, 2013·2 cites·9 claims
- 3766US8073035B2Surface emitting laser, manufacturing method of surface emitting laser, surface emitting laser array, manufacturing method of surface emitting laser array, and optical apparatus including surface emitting laser arrayTAKEUCHI TETSUYA·Filed 2009·Granted Dec 6, 2011·2 cites·11 claims
- 3866US4621433AVerticality detecting apparatus for plumbing columnsSOKKISHA·Filed 1984·Granted Nov 11, 1986·19 cites·5 claims
- 3966US2024106189A1Chip on submountFURUKAWA ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 4065US6813295B2Asymmetric InGaAsN vertical cavity surface emitting lasersAGILENT TECHNOLOGIES INC·Filed 2002·Granted Nov 2, 2004·7 cites·27 claims
- 4164US6934312B2System and method for fabricating efficient semiconductor lasers via use of precursors having a direct bond between a group III atom and a nitrogen atomAGILENT TECHNOLOGIES INC·Filed 2002·Granted Aug 23, 2005·10 cites·27 claims
- 4264US6887727B2System and method for increasing nitrogen incorporation into a semiconductor material layer using an additional elementAGILENT TECHNOLOGIES INC·Filed 2003·Granted May 3, 2005·10 cites·2 claims
- 4364US2024421259A1Light emitting deviceTOYODA GOSEI KK·Filed 2024·Application pending·0 cites
- 4463US12439735B2Semiconductor device and method for producing semiconductor deviceTOYODA GOSEI KK·Filed 2022·Granted Oct 7, 2025·0 cites·8 claims
- 4563US7562695B2Cooling device and method of manufacturing the sameDENSO CORP·Filed 2006·Granted Jul 21, 2009·2 cites·26 claims
- 4663US6690700B2Nitride semiconductor deviceAGILENT TECHNOLOGIES INC·Filed 2001·Granted Feb 10, 2004·11 cites·20 claims
- 4762US10593831B2Nitride semiconductor multilayer film reflector and light-emitting device using the sameUNIV MEIJO·Filed 2014·Granted Mar 17, 2020·1 cites·10 claims
- 4862US8116344B2Red surface emitting laser element, image forming device, and image display apparatusTAKEUCHI TETSUYA·Filed 2009·Granted Feb 14, 2012·1 cites·13 claims
- 4962US7768021B2Light emitting element array and image forming apparatusCANON KK·Filed 2006·Granted Aug 3, 2010·1 cites·22 claims
- 5062US2024380173A1Vertical cavity light-emitting elementUNIV MEIJO·Filed 2022·Application pending·0 cites
Showing the top 50 of 99 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →