Inventor · disambiguated record
Masakiyo Sumitomo
Also filed as: SUMITOMO MASAKIYO
21 granted patents·4 pending applications·103 citations·filing 2008–2022
93Inventor score
Top patents by PatentIndex Score
25 records- 0192US8278731B2Semiconductor device having SOI substrate and method for manufacturing the sameSUMITOMO MASAKIYO·Filed 2008·Granted Oct 2, 2012·20 cites·15 claims
- 0290US10388773B2Semiconductor device and manufacturing method of the sameDENSO CORP·Filed 2015·Granted Aug 20, 2019·8 cites·6 claims
- 0388US8890496B2Drive controllerINOUE TAKESHI·Filed 2011·Granted Nov 18, 2014·11 cites·25 claims
- 0487US9515067B2Semiconductor device having switching element and free wheel diode and method for controlling the sameDENSO CORP·Filed 2014·Granted Dec 6, 2016·9 cites·38 claims
- 0587US8815701B2Method for manufacturing semiconductor device having SOI substrateSUMITOMO MASAKIYO·Filed 2012·Granted Aug 26, 2014·8 cites·4 claims
- 0686US9324848B2Semiconductor deviceDENSO CORP·Filed 2013·Granted Apr 26, 2016·9 cites·4 claims
- 0785US8659065B2Semiconductor device and method of manufacturing the sameSUMITOMO MASAKIYO·Filed 2011·Granted Feb 25, 2014·10 cites·15 claims
- 0884US10763345B2Semiconductor deviceDENSO CORP·Filed 2019·Granted Sep 1, 2020·5 cites·10 claims
- 0979US8890252B2Semiconductor device having switching element and free wheel diode and method for controlling the sameSAIKAKU HIROTAKA·Filed 2011·Granted Nov 18, 2014·7 cites·7 claims
- 1077US10186606B2Semiconductor deviceDENSO CORP·Filed 2016·Granted Jan 22, 2019·3 cites·8 claims
- 1177US8384153B2Semiconductor device and manufacturing method of the sameDENSO CORP·Filed 2011·Granted Feb 26, 2013·5 cites·19 claims
- 1276US9231090B2Trench-gate-type insulated gate bipolar transistorDENSO CORP·Filed 2013·Granted Jan 5, 2016·4 cites·5 claims
- 1370US10720518B2Semiconductor deviceDENSO CORP·Filed 2019·Granted Jul 21, 2020·1 cites·3 claims
- 1462US10103255B2Semiconductor deviceDENSO CORP·Filed 2016·Granted Oct 16, 2018·1 cites·5 claims
- 1560US9178050B2Load-short-circuit-tolerant semiconductor device having trench gatesHIGUCHI YASUSHI·Filed 2012·Granted Nov 3, 2015·2 cites·8 claims
- 1646US12414358B2Semiconductor deviceDENSO CORP·Filed 2022·Granted Sep 9, 2025·0 cites·5 claims
- 1746US12283593B2Semiconductor deviceDENSO CORP·Filed 2022·Granted Apr 22, 2025·0 cites·5 claims
- 1842US10848078B2Power converter with switching elements, control circuit having speed adjustment resistor, and feedback routeDENSO CORP·Filed 2019·Granted Nov 24, 2020·0 cites·13 claims
- 1942US10748988B2Semiconductor deviceDENSO CORP·Filed 2019·Granted Aug 18, 2020·0 cites·2 claims
- 2041US11289476B2Semiconductor device including carrier injection layersDENSO CORP·Filed 2020·Granted Mar 29, 2022·0 cites·3 claims
- 2140US2015048413A1Semiconductor deviceDENSO CORP·Filed 2013·Application pending·0 cites
- 2240US2015115316A1Semiconductor deviceDENSO CORP·Filed 2013·Application pending·0 cites
- 2339US2015115314A1Semiconductor device and manufacturing method of the sameDENSO CORP·Filed 2013·Application pending·0 cites
- 2439US2014209972A1Semiconductor deviceDENSO CORP·Filed 2012·Application pending·0 cites
- 2533US10224322B2Semiconductor deviceDENSO CORP·Filed 2016·Granted Mar 5, 2019·0 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Masakiyo Sumitomo files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →