Inventor · disambiguated record
Tohru Shirakawa
Also filed as: SHIRAKAWA Tohru
29 granted patents·14 pending applications·23 citations·filing 2016–2025
93Inventor score
Top patents by PatentIndex Score
43 records- 0191US11264491B2Semiconductor device for improving transistor characteristics during turn-onFUJI ELECTRIC CO LTD·Filed 2020·Granted Mar 1, 2022·3 cites·15 claims
- 0287US11450762B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2019·Granted Sep 20, 2022·4 cites·11 claims
- 0387US10050105B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2016·Granted Aug 14, 2018·5 cites·13 claims
- 0482US10600897B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2018·Granted Mar 24, 2020·3 cites·19 claims
- 0580US10128230B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2017·Granted Nov 13, 2018·3 cites·14 claims
- 0679US12015058B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Granted Jun 18, 2024·0 cites·17 claims
- 0778US2025096169A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 0878US2024332373A1Semiconductor device and manufacturing methodFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 0975US11195749B2Semiconductor device and manufacturing methodFUJI ELECTRIC CO LTD·Filed 2019·Granted Dec 7, 2021·1 cites·7 claims
- 1074US12165998B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2022·Granted Dec 10, 2024·0 cites·25 claims
- 1173US12431448B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2022·Granted Sep 30, 2025·0 cites·21 claims
- 1272US10050029B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2016·Granted Aug 14, 2018·2 cites·9 claims
- 1370US11715771B2Semiconductor device and manufacturing methodFUJI ELECTRIC CO LTD·Filed 2020·Granted Aug 1, 2023·0 cites·16 claims
- 1469US10186574B2Super junction MOSFET device and semiconductor chipFUJI ELECTRIC CO LTD·Filed 2016·Granted Jan 22, 2019·1 cites·9 claims
- 1568US10777549B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2019·Granted Sep 15, 2020·1 cites·17 claims
- 1667US12206015B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2022·Granted Jan 21, 2025·0 cites·25 claims
- 1765US2022084880A1Semiconductor device and manufacturing methodFUJI ELECTRIC CO LTD·Filed 2021·Application pending·0 cites
- 1864US2025192058A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 1964US2022271152A1Semiconductor device and manufacturing method thereofFUJI ELECTRIC CO LTD·Filed 2022·Application pending·0 cites
- 2060US11335795B2Reverse-conducting IGBT and manufacturing method thereofFUJI ELECTRIC CO LTD·Filed 2019·Granted May 17, 2022·0 cites·14 claims
- 2159US12439622B2Semiconductor device and manufacturing method of semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2022·Granted Oct 7, 2025·0 cites·23 claims
- 2258US10720519B2Semiconductor device and manufacturing method of semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2019·Granted Jul 21, 2020·0 cites·8 claims
- 2358US2024274663A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 2458US2024266389A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 2558US2024243169A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 2658US2024162285A1Semiconductor device and manufacturing method of semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 2757US10516018B2Super junction MOSFET device and semiconductor chipFUJI ELECTRIC CO LTD·Filed 2019·Granted Dec 24, 2019·0 cites·9 claims
- 2856US12414342B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2022·Granted Sep 9, 2025·0 cites·26 claims
- 2955US12183789B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted Dec 31, 2024·0 cites·18 claims
- 3055US11574999B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted Feb 7, 2023·0 cites·20 claims
- 3155US2024282817A1Semiconductor device and manufacturing method of semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 3253US2023378333A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 3353US2024128349A1Semiconductor device and manufacturing method of semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 3451US10297682B2Semiconductor device and manufacturing method of semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2017·Granted May 21, 2019·0 cites·11 claims
- 3550US12471303B2Semiconductor device having an injection suppression regionFUJI ELECTRIC CO LTD·Filed 2021·Granted Nov 11, 2025·0 cites·15 claims
- 3650US10483357B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2018·Granted Nov 19, 2019·0 cites·12 claims
- 3749US11658179B2Semiconductor device with insulated-gate bipolar transistor region and diode regionFUJI ELECTRIC CO LTD·Filed 2020·Granted May 23, 2023·0 cites·10 claims
- 3848US2022278094A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2022·Application pending·0 cites
- 3948US2025261388A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2025·Application pending·0 cites
- 4047US11532738B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2020·Granted Dec 20, 2022·0 cites·14 claims
- 4146US10566448B2Insulated gate bipolar transistorFUJI ELECTRIC CO LTD·Filed 2018·Granted Feb 18, 2020·0 cites·13 claims
- 4244US12342607B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2020·Granted Jun 24, 2025·0 cites·17 claims
- 4343USD1056621SCutleryKIRIN HOLDINGS KK·Filed 2022·Granted Jan 7, 2025·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →