Inventor · disambiguated record
Ryosuke Iijima
Also filed as: IIJIMA RYOSUKE
79 granted patents·17 pending applications·94 citations·filing 2006–2025
98Inventor score
Top patents by PatentIndex Score
96 records- 0196US10199466B1Semiconductor device, method for manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevatorTOSHIBA KK·Filed 2018·Granted Feb 5, 2019·19 cites·18 claims
- 0292US10243038B1Semiconductor deviceTOSHIBA KK·Filed 2018·Granted Mar 26, 2019·8 cites·20 claims
- 0392US10177251B2Semiconductor device, inverter circuit, drive device, vehicle, and elevatorTOSHIBA KK·Filed 2018·Granted Jan 8, 2019·8 cites·20 claims
- 0489US9941361B2Method for fabricating semiconductor substrate, semiconductor substrate, and semiconductor deviceTOSHIBA KK·Filed 2015·Granted Apr 10, 2018·5 cites·8 claims
- 0588US9755064B2Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2016·Granted Sep 5, 2017·5 cites·18 claims
- 0687US11201223B2Semiconductor device, inverter circuit, drive device, vehicle, and elevator each having a threshold-voltage-increasing portion in silicon carbide layerTOSHIBA KK·Filed 2020·Granted Dec 14, 2021·2 cites·16 claims
- 0784US10217811B1Semiconductor device, method for manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevatorTOSHIBA KK·Filed 2018·Granted Feb 26, 2019·3 cites·17 claims
- 0882US11374122B2Semiconductor device, inverter circuit, drive device, vehicle, and elevating machineTOSHIBA KK·Filed 2020·Granted Jun 28, 2022·1 cites·18 claims
- 0981US11398556B2Semiconductor device, inverter circuit, drive device, vehicle, and elevatorTOSHIBA KK·Filed 2021·Granted Jul 26, 2022·1 cites·18 claims
- 1081US9728608B2Semiconductor device, inverter circuit, and vehicleTOSHIBA KK·Filed 2016·Granted Aug 8, 2017·2 cites·8 claims
- 1181US9679971B2Semiconductor deviceTOSHIBA KK·Filed 2016·Granted Jun 13, 2017·3 cites·15 claims
- 1280US11201210B2Semiconductor device, inverter circuit, drive device, vehicle, and elevatorTOSHIBA KK·Filed 2020·Granted Dec 14, 2021·1 cites·13 claims
- 1380US10236339B2Semiconductor deviceTOSHIBA KK·Filed 2017·Granted Mar 19, 2019·3 cites·19 claims
- 1479US11276774B2Semiconductor device, inverter circuit, driving device, vehicle, and elevatorTOSHIBA KK·Filed 2019·Granted Mar 15, 2022·2 cites·12 claims
- 1579US11245017B2Semiconductor device, inverter circuit, drive device, vehicle, and elevatorTOSHIBA KK·Filed 2020·Granted Feb 8, 2022·1 cites·18 claims
- 1679US11069803B2Semiconductor device, method of manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevatorTOSHIBA KK·Filed 2020·Granted Jul 20, 2021·1 cites·20 claims
- 1778US9825121B2Semiconductor deviceTOSHIBA KK·Filed 2015·Granted Nov 21, 2017·3 cites·4 claims
- 1878US9812529B2Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2016·Granted Nov 7, 2017·2 cites·15 claims
- 1977US10651280B2Silicon carbide semiconductor deviceTOSHIBA KK·Filed 2018·Granted May 12, 2020·2 cites·20 claims
- 2077US10229994B2Semiconductor deviceTOSHIBA KK·Filed 2016·Granted Mar 12, 2019·2 cites·13 claims
- 2176US9748343B2Semiconductor deviceTOSHIBA KK·Filed 2016·Granted Aug 29, 2017·2 cites·28 claims
- 2276US7932150B2Lateral oxidation with high-K dielectric linerTOSHIBA KK·Filed 2008·Granted Apr 26, 2011·6 cites·18 claims
- 2375US9490327B2Semiconductor device and method of manufacturing the sameTOSHIBA KK·Filed 2015·Granted Nov 8, 2016·2 cites·12 claims
- 2474US11276758B2Semiconductor device, inverter circuit, driving device, vehicle, and elevator having a reduced on-resistance with a silicon carbide layerTOSHIBA KK·Filed 2019·Granted Mar 15, 2022·1 cites·19 claims
- 2574US11152470B2Method for manufacturing semiconductor device, method for manufacturing substrate, semiconductor device, substrate, and manufacturing apparatus of substrateTOSHIBA KK·Filed 2019·Granted Oct 19, 2021·1 cites·12 claims
- 2672US10243037B2Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2017·Granted Mar 26, 2019·1 cites·20 claims
- 2768US10431649B2Semiconductor deviceTOSHIBA KK·Filed 2018·Granted Oct 1, 2019·1 cites·20 claims
- 2867US10923568B2Semiconductor device, inverter circuit, and vehicleTOSHIBA KK·Filed 2019·Granted Feb 16, 2021·0 cites·10 claims
- 2967US9673315B2Semiconductor device, inverter circuit, driving device, vehicle, and elevatorTOSHIBA KK·Filed 2016·Granted Jun 6, 2017·1 cites·19 claims
- 3066US10249717B2Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2018·Granted Apr 2, 2019·1 cites·18 claims
- 3166US9716186B2Semiconductor device manufacturing method, and semiconductor deviceTOSHIBA KK·Filed 2015·Granted Jul 25, 2017·1 cites·12 claims
- 3266US9018636B2Semiconductor device having a plurality of transistors with different crystal faceTOSHIBA KK·Filed 2013·Granted Apr 28, 2015·1 cites·17 claims
- 3364US9012923B2Semiconductor deviceTOSHIBA KK·Filed 2014·Granted Apr 21, 2015·1 cites·10 claims
- 3463US10707306B2Semiconductor device and method of manufacturing the sameTOSHIBA KK·Filed 2019·Granted Jul 7, 2020·0 cites·12 claims
- 3562US10546931B2Semiconductor device, inverter circuit, and vehicleTOSHIBA KK·Filed 2018·Granted Jan 28, 2020·0 cites·8 claims
- 3662US9064780B2Semiconductor deviceTOSHIBA KK·Filed 2013·Granted Jun 23, 2015·1 cites·20 claims
- 3761US12477809B2Semiconductor device and method for manufacturing semiconductor deviceTOSHIBA KK·Filed 2022·Granted Nov 18, 2025·0 cites·9 claims
- 3861US2025089322A1Wafer and method for manufacturing the sameTOSHIBA KK·Filed 2024·Application pending·0 cites
- 3959US10026813B2SiC semiconductor device having a high mobility and a high threshold voltage, inverter circuit, and vehicleTOSHIBA KK·Filed 2017·Granted Jul 17, 2018·0 cites·16 claims
- 4059US2024266400A1Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2023·Application pending·0 cites
- 4158US2020144412A1Semiconductor deviceTOSHIBA KK·Filed 2019·Application pending·0 cites
- 4257US10312330B2Method for fabricating semiconductor substrate, semiconductor substrate, and semiconductor deviceTOSHIBA KK·Filed 2018·Granted Jun 4, 2019·0 cites·3 claims
- 4356US12406844B2Wafer having a silicon carbide crystal layer with stacking faults provided on a silicon carbide base body and semiconductor device manufactured using the waferTOSHIBA KK·Filed 2022·Granted Sep 2, 2025·0 cites·20 claims
- 4456US10014378B2Semiconductor device, method of manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevatorTOSHIBA KK·Filed 2017·Granted Jul 3, 2018·0 cites·17 claims
- 4555US10600863B2Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2018·Granted Mar 24, 2020·0 cites·18 claims
- 4655US2015076523A1Semiconductor deviceTOSHIBA KK·Filed 2014·Application pending·0 cites
- 4754US10861944B2Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2019·Granted Dec 8, 2020·0 cites·20 claims
- 4853US2023299192A1Semiconductor device, semiconductor device manufacturing method, inverter circuit, drive device, vehicle, and elevatorTOSHIBA KK·Filed 2022·Application pending·0 cites
- 4953US2025359238A1Wafer and semiconductor deviceTOSHIBA KK·Filed 2025·Application pending·0 cites
- 5053US2023299193A1Semiconductor device, inverter circuit, drive device, vehicle, and elevatorTOSHIBA KK·Filed 2022·Application pending·0 cites
Showing the top 50 of 96 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →