Inventor · disambiguated record
Ryohei Gejo
Also filed as: GEJO RYOHEI
31 granted patents·22 pending applications·38 citations·filing 2011–2025
94Inventor score
Top patents by PatentIndex Score
53 records- 0190US12426326B2Semiconductor deviceTOSHIBA KK·Filed 2023·Granted Sep 23, 2025·1 cites·11 claims
- 0290US11955477B2Semiconductor device and semiconductor circuitTOSHIBA KK·Filed 2022·Granted Apr 9, 2024·1 cites·11 claims
- 0387US9761582B2Semiconductor device and method of manufacturing semiconductor deviceTOSHIBA KK·Filed 2016·Granted Sep 12, 2017·6 cites·20 claims
- 0485US9159722B2Semiconductor deviceTOSHIBA KK·Filed 2014·Granted Oct 13, 2015·9 cites·20 claims
- 0584US10297593B2Semiconductor deviceTOSHIBA KK·Filed 2016·Granted May 21, 2019·5 cites·2 claims
- 0683US10418470B2Semiconductor device having IGBT portion and diode portionTOSHIBA KK·Filed 2018·Granted Sep 17, 2019·4 cites·11 claims
- 0781US2025380476A1Semiconductor deviceTOSHIBA KK·Filed 2025·Application pending·0 cites
- 0880US9324815B2Semiconductor deviceTOSHIBA KK·Filed 2015·Granted Apr 26, 2016·3 cites·12 claims
- 0978US11374563B2Method for controlling semiconductor deviceTOSHIBA KK·Filed 2020·Granted Jun 28, 2022·1 cites·13 claims
- 1076US10756181B1Semiconductor deviceTOSHIBA KK·Filed 2019·Granted Aug 25, 2020·4 cites·7 claims
- 1174US10727225B2IGBT semiconductor deviceTOSHIBA KK·Filed 2018·Granted Jul 28, 2020·2 cites·9 claims
- 1272US11837654B2Method for controlling semiconductor deviceTOSHIBA KK·Filed 2022·Granted Dec 5, 2023·0 cites·20 claims
- 1371US2024203983A1Semiconductor device and semiconductor circuitTOSHIBA KK·Filed 2024·Application pending·0 cites
- 1467US9054066B2Semiconductor deviceTOSHIBA KK·Filed 2013·Granted Jun 9, 2015·2 cites·15 claims
- 1561US12456911B2Driving device and semiconductor deviceTOSHIBA KK·Filed 2024·Granted Oct 28, 2025·0 cites·20 claims
- 1660US11563112B2Method for controlling semiconductor deviceTOSHIBA KK·Filed 2020·Granted Jan 24, 2023·0 cites·20 claims
- 1760US2025364988A1Semiconductor drive device and semiconductor moduleTOSHIBA KK·Filed 2025·Application pending·0 cites
- 1860US2025203972A1Semiconductor deviceTOSHIBA KK·Filed 2024·Application pending·0 cites
- 1958US12489441B2Driving device and semiconductor deviceTOSHIBA KK·Filed 2024·Granted Dec 2, 2025·0 cites·18 claims
- 2058US2024297153A1Semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 2156US12469815B2Semiconductor packageTOSHIBA KK·Filed 2023·Granted Nov 11, 2025·0 cites·20 claims
- 2256US2024322021A1Semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 2356US2024290781A1Semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 2454US2023299178A1Semiconductor device and method for manufacturingTOSHIBA KK·Filed 2022·Application pending·0 cites
- 2554US2024290840A1Semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 2652US12278279B2Semiconductor deviceTOSHIBA KK·Filed 2022·Granted Apr 15, 2025·0 cites·20 claims
- 2752US2024079448A1Semiconductor deviceTOSHIBA KK·Filed 2023·Application pending·0 cites
- 2851US12513926B2Semiconductor device and semiconductor moduleTOSHIBA KK·Filed 2022·Granted Dec 30, 2025·0 cites·17 claims
- 2951US11923851B2Drive device and semiconductor moduleTOSHIBA KK·Filed 2022·Granted Mar 5, 2024·0 cites·20 claims
- 3051US2023268428A1Semiconductor deviceTOSHIBA KK·Filed 2022·Application pending·0 cites
- 3151US2025294830A1Semiconductor deviceTOSHIBA KK·Filed 2025·Application pending·0 cites
- 3251US2025294829A1Semiconductor deviceTOSHIBA KK·Filed 2025·Application pending·0 cites
- 3350US2025294786A1Semiconductor deviceTOSHIBA KK·Filed 2025·Application pending·0 cites
- 3450US2023223464A1Semiconductor deviceTOSHIBA KK·Filed 2022·Application pending·0 cites
- 3547US12107159B2Semiconductor deviceTOSHIBA KK·Filed 2021·Granted Oct 1, 2024·0 cites·18 claims
- 3647US11784246B2Semiconductor device and semiconductor moduleTOSHIBA KK·Filed 2021·Granted Oct 10, 2023·0 cites·20 claims
- 3747US11777025B2Semiconductor deviceTOSHIBA KK·Filed 2021·Granted Oct 3, 2023·0 cites·4 claims
- 3847US11777028B2Semiconductor deviceTOSHIBA KK·Filed 2021·Granted Oct 3, 2023·0 cites·17 claims
- 3947US11380790B2Semiconductor deviceTOSHIBA KK·Filed 2020·Granted Jul 5, 2022·0 cites·19 claims
- 4045US11462633B2Semiconductor deviceTOSHIBA KK·Filed 2020·Granted Oct 4, 2022·0 cites·9 claims
- 4144US11335787B2Semiconductor deviceTOSHIBA KK·Filed 2020·Granted May 17, 2022·0 cites·20 claims
- 4244US11296076B2Semiconductor deviceTOSHIBA KK·Filed 2020·Granted Apr 5, 2022·0 cites·20 claims
- 4343US10636898B2Semiconductor deviceTOSHIBA KK·Filed 2018·Granted Apr 28, 2020·0 cites·15 claims
- 4442US2015263150A1Semiconductor device and method for manufacturing sameTOSHIBA KK·Filed 2014·Application pending·0 cites
- 4542US2015091055A1Semiconductor deviceTOSHIBA KK·Filed 2014·Application pending·0 cites
- 4641US2015255629A1Semiconductor deviceTOSHIBA KK·Filed 2014·Application pending·0 cites
- 4741US2020294873A1Semiconductor deviceTOSHIBA KK·Filed 2019·Application pending·0 cites
- 4840US10700184B2Semiconductor deviceTOSHIBA KK·Filed 2018·Granted Jun 30, 2020·0 cites·8 claims
- 4939US11824056B2Trench gate IGBT with carrier trap under the control electrodeTOSHIBA KK·Filed 2021·Granted Nov 21, 2023·0 cites·14 claims
- 5038US2013248925A1Power semiconductor deviceTOSHIBA KK·Filed 2013·Application pending·0 cites
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →