Inventor · disambiguated record
Masaaki Onomura
Also filed as: ONOMURA MASAAKI
44 granted patents·7 pending applications·2,385 citations·filing 1991–2023
98Inventor score
Files withTOSHIBA KK48KYOWA PATENT AND LAW OFFICE1SUGAWARA HIDETO1TOSHIBA ELECTRONIC DEVICES & STORAGE CORP1
Top patents by PatentIndex Score
51 records- 0198US5696389ALight-emitting semiconductor deviceTOSHIBA KK·Filed 1995·Granted Dec 9, 1997·623 cites·21 claims
- 0296US6015979ANitride-based semiconductor element and method for manufacturing the sameTOSHIBA KK·Filed 1998·Granted Jan 18, 2000·338 cites·18 claims
- 0395US11264899B2Semiconductor deviceTOSHIBA KK·Filed 2020·Granted Mar 1, 2022·4 cites·13 claims
- 0495US6067309ACompound semiconductor light-emitting device of gallium nitride seriesTOSHIBA KK·Filed 1997·Granted May 23, 2000·138 cites·28 claims
- 0595US6031858ASemiconductor laser and method of fabricating sameTOSHIBA KK·Filed 1997·Granted Feb 29, 2000·127 cites·11 claims
- 0694US5821555ASemicoductor device having a hetero interface with a lowered barrierTOSHIBA KK·Filed 1996·Granted Oct 13, 1998·283 cites·4 claims
- 0793US6873634B2Semiconductor laser diodeTOSHIBA KK·Filed 2001·Granted Mar 29, 2005·43 cites·21 claims
- 0893US6400742B1Semiconductor laser and method of fabricating sameTOSHIBA KK·Filed 2000·Granted Jun 4, 2002·41 cites·21 claims
- 0993US6252894B1Semiconductor laser using gallium nitride series compound semiconductorTOSHIBA KK·Filed 1999·Granted Jun 26, 2001·132 cites·20 claims
- 1091US11508647B2Semiconductor deviceTOSHIBA KK·Filed 2021·Granted Nov 22, 2022·2 cites·20 claims
- 1191US10771057B1Semiconductor deviceTOSHIBA KK·Filed 2020·Granted Sep 8, 2020·3 cites·6 claims
- 1286US6060335ASemiconductor light emitting device and method of manufacturing the sameTOSHIBA KK·Filed 1998·Granted May 9, 2000·102 cites·19 claims
- 1385US7498618B2Nitride semiconductor deviceTOSHIBA KK·Filed 2006·Granted Mar 3, 2009·13 cites·19 claims
- 1485US6185238B1Nitride compound semiconductor laser and its manufacturing methodTOSHIBA KK·Filed 1998·Granted Feb 6, 2001·80 cites·23 claims
- 1585US5488233ASemiconductor light-emitting device with compound semiconductor layerTOSHIBA KK·Filed 1994·Granted Jan 30, 1996·66 cites·24 claims
- 1684US12328924B2Semiconductor deviceTOSHIBA KK·Filed 2021·Granted Jun 10, 2025·1 cites·16 claims
- 1784US7358156B2Compound semiconductor device and method of manufacturing the sameTOSHIBA KK·Filed 2006·Granted Apr 15, 2008·9 cites·20 claims
- 1883US5253264AOptical semiconductor deviceTOSHIBA KK·Filed 1991·Granted Oct 12, 1993·47 cites·20 claims
- 1980US8502350B2Stacked layers of nitride semiconductor and method for manufacturing the sameSUGAWARA HIDETO·Filed 2011·Granted Aug 6, 2013·4 cites·20 claims
- 2079US7862657B2Crystal growth method and apparatusTOSHIBA KK·Filed 2007·Granted Jan 4, 2011·5 cites·10 claims
- 2179US5780873ASemiconductor device capable of easily forming cavity and its manufacturing methodTOSHIBA KK·Filed 1996·Granted Jul 14, 1998·68 cites·14 claims
- 2278US6121634ANitride semiconductor light emitting device and its manufacturing methodTOSHIBA KK·Filed 1998·Granted Sep 19, 2000·72 cites·17 claims
- 2377US7737467B2Nitride semiconductor device with a hole extraction electrodeTOSHIBA KK·Filed 2006·Granted Jun 15, 2010·7 cites·20 claims
- 2477US5347526AWavelength-tunable semiconductor laserTOSHIBA KK·Filed 1993·Granted Sep 13, 1994·36 cites·15 claims
- 2576US5274649AWavelength-tunable distributed-feedback semiconductor laser deviceTOSHIBA KK·Filed 1991·Granted Dec 28, 1993·34 cites·7 claims
- 2672US7339255B2Semiconductor device having bidirectionally inclined toward <1-100> and <11-20> relative to {0001} crystal planesTOSHIBA KK·Filed 2005·Granted Mar 4, 2008·3 cites·22 claims
- 2771US10998433B2Semiconductor deviceTOSHIBA KK·Filed 2019·Granted May 4, 2021·1 cites·9 claims
- 2871US7333523B2Semiconductor laser deviceTOSHIBA KK·Filed 2006·Granted Feb 19, 2008·3 cites·19 claims
- 2971US5972730ANitride based compound semiconductor light emitting device and method for producing the sameTOSHIBA KK·Filed 1997·Granted Oct 26, 1999·41 cites·12 claims
- 3069US5585649ACompound semiconductor devices and methods of making compound semiconductor devicesTOSHIBA KK·Filed 1995·Granted Dec 17, 1996·44 cites·19 claims
- 3165US7135710B2Semiconductor light-emitting deviceKYOWA PATENT AND LAW OFFICE·Filed 2005·Granted Nov 14, 2006·3 cites·20 claims
- 3264US7602829B2Semiconductor light emitting device and method of manufacturing sameTOSHIBA KK·Filed 2006·Granted Oct 13, 2009·2 cites·19 claims
- 3361US7369592B2Semiconductor laser deviceTOSHIBA KK·Filed 2006·Granted May 6, 2008·1 cites·20 claims
- 3461US2022140731A1Semiconductor deviceTOSHIBA KK·Filed 2022·Application pending·0 cites
- 3558US12444668B2Semiconductor deviceTOSHIBA KK·Filed 2023·Granted Oct 14, 2025·0 cites·7 claims
- 3657US12046668B2Semiconductor deviceTOSHIBA KK·Filed 2022·Granted Jul 23, 2024·0 cites·12 claims
- 3757US2024322027A1Semiconductor device and method for manufacturing semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 3855US8796111B2Stacked layers of nitride semiconductor and method for manufacturing the sameTOSHIBA KK·Filed 2013·Granted Aug 5, 2014·0 cites·20 claims
- 3955US7531397B2Method for manufacturing a semiconductor device on GAN substrate having surface bidirectionally inclined toward <1-100> and <11-20> directions relative to {0001} crystal planesTOSHIBA KK·Filed 2008·Granted May 12, 2009·0 cites·22 claims
- 4055US2024105826A1Semiconductor device and method for manufacturing semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 4153US2019271083A1Film formation apparatusTOSHIBA ELECTRONIC DEVICES & STORAGE CORP·Filed 2018·Application pending·0 cites
- 4251US12062651B2Semiconductor deviceTOSHIBA KK·Filed 2021·Granted Aug 13, 2024·0 cites·16 claims
- 4350US12273101B2Semiconductor deviceTOSHIBA KK·Filed 2023·Granted Apr 8, 2025·0 cites·19 claims
- 4450US11251298B2Power semiconductor deviceTOSHIBA KK·Filed 2020·Granted Feb 15, 2022·0 cites·11 claims
- 4550US2007023773A1Semiconductor light-emitting deviceTOSHIBA KK·Filed 2006·Application pending·0 cites
- 4648US10910489B2Semiconductor deviceTOSHIBA KK·Filed 2019·Granted Feb 2, 2021·0 cites·15 claims
- 4747US7554127B2Semiconductor light-emitting element and method of manufacturing the sameTOSHIBA KK·Filed 2004·Granted Jun 30, 2009·1 cites·18 claims
- 4847US2011067625A1Crystal growth method and apparatusTOSHIBA KK·Filed 2010·Application pending·0 cites
- 4943US11290100B2Semiconductor deviceTOSHIBA KK·Filed 2020·Granted Mar 29, 2022·0 cites·21 claims
- 5042US2007086496A1Semiconductor light emitting deviceTOSHIBA KK·Filed 2006·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →