Inventor · disambiguated record
Yasuhiko Arakawa
Also filed as: ARAKAWA YASUHIKO
33 granted patents·14 pending applications·110 citations·filing 2003–2024
96Inventor score
Top patents by PatentIndex Score
47 records- 0192US7522647B2Semiconductor laser and method of fabricating the sameFUJITSU LTD·Filed 2006·Granted Apr 21, 2009·28 cites·17 claims
- 0286US8906721B2Semiconductor light emitting device and method for manufacturing the sameFUJITSU LTD·Filed 2013·Granted Dec 9, 2014·4 cites·3 claims
- 0385US7015498B2Quantum optical semiconductor deviceFUJITSU LTD·Filed 2003·Granted Mar 21, 2006·26 cites·18 claims
- 0484US7829880B2Quantum dot semiconductor deviceFUJITSU LTD·Filed 2008·Granted Nov 9, 2010·8 cites·11 claims
- 0582US7738523B2Optical semiconductor device having diffraction gratingFUJITSU LTD·Filed 2007·Granted Jun 15, 2010·7 cites·19 claims
- 0677US7835418B2Optical semiconductor device having diffraction grating disposed on both sides of waveguide and its manufacture methodFUJITSU LTD·Filed 2007·Granted Nov 16, 2010·4 cites·10 claims
- 0776US9871147B2PhotodetectorSHARP KK·Filed 2016·Granted Jan 16, 2018·3 cites·7 claims
- 0876US8232125B2Optical semiconductor device having active layer of p-type quantum dot structure and its manufacture methodHATORI NOBUAKI·Filed 2009·Granted Jul 31, 2012·4 cites·7 claims
- 0975US10088682B2Image projection device and projection deviceQD LASER INC·Filed 2014·Granted Oct 2, 2018·2 cites·14 claims
- 1072US8483252B2Semiconductor light emitting device and fabrication method for semiconductor light emitting deviceHATORI NOBUAKI·Filed 2008·Granted Jul 9, 2013·4 cites·8 claims
- 1170US10038306B2Nitride semiconductor device and quantum cascade laser using the sameSHARP KK·Filed 2016·Granted Jul 31, 2018·1 cites·13 claims
- 1270US8891578B2Optical semiconductor device having diffraction grating disposed on both sides of waveguide and its manufacture methodHATORI NOBUAKI·Filed 2010·Granted Nov 18, 2014·2 cites·4 claims
- 1369US2024291241A1Semiconductor laser deviceUNIV TOKYO·Filed 2024·Application pending·0 cites
- 1468US9871347B2Semiconductor light emitting device and optical transceiverFUJITSU LTD·Filed 2016·Granted Jan 16, 2018·1 cites·13 claims
- 1568US9601643B2Photoelectric conversion elementSHARP KK·Filed 2016·Granted Mar 21, 2017·1 cites·9 claims
- 1667US7768692B2Single-photon generatorFUJITSU LTD·Filed 2006·Granted Aug 3, 2010·3 cites·12 claims
- 1767US7573060B2Optical semiconductor device having active layer of p-type quantum dot structure and its manufacture methodFUJITSU LTD·Filed 2007·Granted Aug 11, 2009·2 cites·6 claims
- 1867US7450789B2Micro sensor deviceHITACHI LTD·Filed 2006·Granted Nov 11, 2008·2 cites·6 claims
- 1966US10444519B2Image projection deviceQD LASER INC·Filed 2016·Granted Oct 15, 2019·1 cites·12 claims
- 2065US8183073B2Method of manufacturing a semiconductor device with quantum dots formed by self-assembled growthARAKAWA YASUHIKO·Filed 2010·Granted May 22, 2012·2 cites·14 claims
- 2164US7700937B2Single-photon generating device, single-photon detecting device, and optical quantum gateFUJITSU LTD·Filed 2006·Granted Apr 20, 2010·2 cites·16 claims
- 2263US8334528B2Organic thin-film transistor and method for manufacturing the sameKUZUMOTO YASUTAKA·Filed 2010·Granted Dec 18, 2012·2 cites·9 claims
- 2362US9583656B2Photoelectric conversion elementSHARP KK·Filed 2013·Granted Feb 28, 2017·1 cites·14 claims
- 2461US10627631B2Image projection device and projection deviceQD LASER INC·Filed 2018·Granted Apr 21, 2020·0 cites·7 claims
- 2559US8802468B2Semiconductor light emitting device and fabrication method for semiconductor light emitting deviceFUJITSU LTD·Filed 2013·Granted Aug 12, 2014·0 cites·8 claims
- 2657US2014326302A1Solar cellSHARP KK·Filed 2012·Application pending·0 cites
- 2757US2020173848A1DetectorSHARP KK·Filed 2020·Application pending·0 cites
- 2855US2018172508A1DetectorSHARP KK·Filed 2017·Application pending·0 cites
- 2954US10811554B2Infrared photodetectorSHARP KK·Filed 2019·Granted Oct 20, 2020·0 cites·8 claims
- 3054US7892871B2Method of manufacturing semiconductor device with quantum dots formed by self-assembled growthFUJITSU LTD·Filed 2007·Granted Feb 22, 2011·0 cites·9 claims
- 3154US2009305442A1Light emitting device and method for fabricating the sameFUJITSU LTD·Filed 2009·Application pending·0 cites
- 3253US2009086785A1Semiconductor light emitting device and method for manufacturing the sameFUJITSU LTD·Filed 2008·Application pending·0 cites
- 3350US10866143B2Infrared photodetection systemSHARP KK·Filed 2019·Granted Dec 15, 2020·0 cites·11 claims
- 3449US2021296517A1Infrared detectorSHARP KK·Filed 2021·Application pending·0 cites
- 3549US2012160312A1Solar cellARAKAWA YASUHIKO·Filed 2011·Application pending·0 cites
- 3647US10636833B2Quantum dot infrared detectorSHARP KK·Filed 2018·Granted Apr 28, 2020·0 cites·6 claims
- 3747US2006076552A1Light emitting device and method for fabricating the sameUNIV TOKYO·Filed 2005·Application pending·0 cites
- 3845US2020378833A1Infrared detection apparatusSHARP KK·Filed 2020·Application pending·0 cites
- 3945US2008042122A1Semiconductor light emitting element, method of manufacturing the same and semiconductor light emitting deviceFUJITSU LTD·Filed 2007·Application pending·0 cites
- 4044US10181539B2Photoelectric conversion element and photoelectric conversion device including the sameSHARP KK·Filed 2017·Granted Jan 15, 2019·0 cites·7 claims
- 4143US10659743B2Image projection deviceQD LASER INC·Filed 2016·Granted May 19, 2020·0 cites·11 claims
- 4241US10340663B2Quantum cascade laserSHARP KK·Filed 2017·Granted Jul 2, 2019·0 cites·6 claims
- 4341US2018331240A1Quantum dot infrared detectorSHARP KK·Filed 2018·Application pending·0 cites
- 4440US2017200841A1Photoelectric conversion element having quantum structure using indirect transition conductor materialSHARP KK·Filed 2016·Application pending·0 cites
- 4539US10340662B2Quantum cascade laserSHARP KK·Filed 2015·Granted Jul 2, 2019·0 cites·8 claims
- 4637US2013270517A1Super lattice structure, semiconductor device and semiconductor light emitting device having super lattice structure, and method of making super lattice structureSHARP KK·Filed 2013·Application pending·0 cites
- 4736US8029994B2Method of identifying a target analyte using photonic crystal resonators, and related deviceCONSIGLIO NAZ DELLE RICERCHE INFM ISTITUTO NAZION·Filed 2009·Granted Oct 4, 2011·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →