Inventor · disambiguated record
Yuichi Onozawa
Also filed as: ONOZAWA YUICHI
78 granted patents·9 pending applications·159 citations·filing 2001–2025
98Inventor score
Files withFUJI ELECTRIC CO LTD82ONOZAWA YUICHI2C O FUJI ELECTRIC DEVICE TECHN1FUJI ELEC DEVICE TECH CO LTD1YOSHIKAWA KOH1
Top patents by PatentIndex Score
87 records- 0195US9773923B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2015·Granted Sep 26, 2017·10 cites·21 claims
- 0294US10304928B2Semiconductor device and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2017·Granted May 28, 2019·10 cites·29 claims
- 0392US9954086B2Semiconductor device having multiple field stop layersFUJI ELECTRIC CO LTD·Filed 2016·Granted Apr 24, 2018·7 cites·4 claims
- 0491US11335772B2Semiconductor device and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2020·Granted May 17, 2022·2 cites·28 claims
- 0591US10374102B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2018·Granted Aug 6, 2019·5 cites·17 claims
- 0689US10734230B2Insulated-gate bipolar transistor (IGBT) or diode including buffer region and lifetime killer regionFUJI ELECTRIC CO LTD·Filed 2018·Granted Aug 4, 2020·4 cites·12 claims
- 0789US10468254B2Semiconductor device and manufacturing method of semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2017·Granted Nov 5, 2019·5 cites·30 claims
- 0889US9954053B2Semiconductor device and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2016·Granted Apr 24, 2018·5 cites·9 claims
- 0989US6737705B2Insulated gate semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2001·Granted May 18, 2004·58 cites·5 claims
- 1088US9634130B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2015·Granted Apr 25, 2017·5 cites·19 claims
- 1188US9478614B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2015·Granted Oct 25, 2016·6 cites·17 claims
- 1287US9099522B2Semiconductor deviceONOZAWA YUICHI·Filed 2011·Granted Aug 4, 2015·10 cites·20 claims
- 1386US11942535B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted Mar 26, 2024·1 cites·20 claims
- 1484US12300726B2Semiconductor device and semiconductor device manufacturing methodFUJI ELECTRIC CO LTD·Filed 2023·Granted May 13, 2025·0 cites·20 claims
- 1584US12205993B2Semiconductor device, and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Granted Jan 21, 2025·0 cites·18 claims
- 1684US10867790B2Semiconductor device and method for manufacturing the sameFUJI ELECTRIC CO LTD·Filed 2018·Granted Dec 15, 2020·2 cites·18 claims
- 1784US2025311341A1Semiconductor device and semiconductor device manufacturing methodFUJI ELECTRIC CO LTD·Filed 2025·Application pending·0 cites
- 1883US10707300B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2019·Granted Jul 7, 2020·3 cites·19 claims
- 1981US12256560B1IGBT with electric field relaxation doping profileFUJI ELECTRIC CO LTD·Filed 2024·Granted Mar 18, 2025·0 cites·18 claims
- 2081US10490646B2Semiconductor device and semiconductor device manufacturing methodFUJI ELECTRIC CO LTD·Filed 2016·Granted Nov 26, 2019·3 cites·15 claims
- 2181US10181508B2Semiconductor device and manufacturing method thereofFUJI ELECTRIC CO LTD·Filed 2017·Granted Jan 15, 2019·3 cites·10 claims
- 2281US2024047200A1Semiconductor device and method for manufacturing the sameFUJI ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 2380US10176986B2Semiconductor device and method for manufacturing the sameFUJI ELECTRIC CO LTD·Filed 2015·Granted Jan 8, 2019·2 cites·18 claims
- 2479US12369370B2Semiconductor device and manufacturing method for semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Granted Jul 22, 2025·0 cites·4 claims
- 2579US12015058B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Granted Jun 18, 2024·0 cites·17 claims
- 2678US9324847B2Semiconductor device and semiconductor device manufacturing methodFUJI ELECTRIC CO LTD·Filed 2013·Granted Apr 26, 2016·3 cites·8 claims
- 2778US2024332373A1Semiconductor device and manufacturing methodFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 2878US2025159954A1Semiconductor device, and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2025·Application pending·0 cites
- 2977US11824095B2Semiconductor device and semiconductor device manufacturing methodFUJI ELECTRIC CO LTD·Filed 2022·Granted Nov 21, 2023·0 cites·12 claims
- 3076US12349453B2Semiconductor device comprising insulated-gate bipolar transistorFUJI ELECTRIC CO LTD·Filed 2023·Granted Jul 1, 2025·0 cites·22 claims
- 3176US2025212433A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2025·Application pending·0 cites
- 3275US11646350B2Semiconductor device, and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted May 9, 2023·0 cites·20 claims
- 3375US10756182B2Semiconductor device and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2019·Granted Aug 25, 2020·1 cites·27 claims
- 3474US10312331B2Semiconductor device, and method of manufacturing semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2016·Granted Jun 4, 2019·1 cites·13 claims
- 3574US9082812B2Semiconductor device including a counter layer, for power conversion and method of manufacturing the sameONOZAWA YUICHI·Filed 2012·Granted Jul 14, 2015·3 cites·12 claims
- 3673US11823898B2Semiconductor device and method for manufacturing the sameFUJI ELECTRIC CO LTD·Filed 2020·Granted Nov 21, 2023·0 cites·45 claims
- 3773US10770453B2Semiconductor device having an emitter region and a contact region inside a mesa portionFUJI ELECTRIC CO LTD·Filed 2018·Granted Sep 8, 2020·1 cites·17 claims
- 3873US9673309B2Semiconductor device and method for fabricating semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2015·Granted Jun 6, 2017·2 cites·8 claims
- 3972US12426352B2Semiconductor device and method for fabricating semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Granted Sep 23, 2025·0 cites·11 claims
- 4072US11569092B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted Jan 31, 2023·0 cites·15 claims
- 4172US9054154B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2014·Granted Jun 9, 2015·3 cites·16 claims
- 4270US11715771B2Semiconductor device and manufacturing methodFUJI ELECTRIC CO LTD·Filed 2020·Granted Aug 1, 2023·0 cites·16 claims
- 4370US10916628B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2019·Granted Feb 9, 2021·1 cites·11 claims
- 4469US11894426B2Semiconductor device and manufacturing method for semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted Feb 6, 2024·0 cites·17 claims
- 4569US11239324B2Semiconductor device and semiconductor device manufacturing methodFUJI ELECTRIC CO LTD·Filed 2020·Granted Feb 1, 2022·0 cites·19 claims
- 4668US11049941B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2018·Granted Jun 29, 2021·1 cites·19 claims
- 4767US11183388B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2020·Granted Nov 23, 2021·0 cites·8 claims
- 4867US10529800B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2018·Granted Jan 7, 2020·1 cites·10 claims
- 4966US11676960B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2020·Granted Jun 13, 2023·0 cites·26 claims
- 5066US10923570B2Manufacturing method for controlling carrier lifetimes in semiconductor substrates that includes injection and annealingFUJI ELECTRIC CO LTD·Filed 2019·Granted Feb 16, 2021·0 cites·8 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →