Inventor · disambiguated record
Masashi Hayashiguchi
Also filed as: HAYASHIGUCHI MASASHI
44 granted patents·12 pending applications·124 citations·filing 2012–2025
97Inventor score
Top patents by PatentIndex Score
56 records- 0198US11728801B2Switching device and electronic circuitROHM CO LTD·Filed 2022·Granted Aug 15, 2023·4 cites·15 claims
- 0298US11336275B2Switching device and electronic circuitROHM CO LTD·Filed 2020·Granted May 17, 2022·6 cites·12 claims
- 0396US12068741B2Switching device and electronic circuitROHM CO LTD·Filed 2023·Granted Aug 20, 2024·1 cites·7 claims
- 0496US11936369B2Switching device and electronic circuitROHM CO LTD·Filed 2023·Granted Mar 19, 2024·1 cites·10 claims
- 0596US10950582B2Semiconductor power moduleROHM CO LTD·Filed 2020·Granted Mar 16, 2021·4 cites·25 claims
- 0694US11901340B2Semiconductor power moduleROHM CO LTD·Filed 2023·Granted Feb 13, 2024·1 cites·16 claims
- 0794US10826481B2Switching device and electronic circuitROHM CO LTD·Filed 2019·Granted Nov 3, 2020·6 cites·5 claims
- 0893US11600602B2Semiconductor power moduleROHM CO LTD·Filed 2021·Granted Mar 7, 2023·2 cites·17 claims
- 0993US10600764B2Semiconductor power moduleROHM CO LTD·Filed 2017·Granted Mar 24, 2020·6 cites·20 claims
- 1091USD799439SPower converting semiconductor moduleROHM CO LTD·Filed 2016·Granted Oct 10, 2017·39 cites·1 claims
- 1190US10263612B2Switching device and electronic circuitROHM CO LTD·Filed 2014·Granted Apr 16, 2019·6 cites·15 claims
- 1289US12316307B2Switching device and electronic circuitROHM CO LTD·Filed 2024·Granted May 27, 2025·0 cites·6 claims
- 1386US12283573B2Semiconductor power moduleROHM CO LTD·Filed 2023·Granted Apr 22, 2025·0 cites·14 claims
- 1485US9129932B2Semiconductor moduleHAYASHI KENJI·Filed 2012·Granted Sep 8, 2015·8 cites·17 claims
- 1585US2025240006A1Switching device and electronic circuitROHM CO LTD·Filed 2025·Application pending·0 cites
- 1685US2025343545A1Semiconductor device, semiconductor module, relay unit, battery unit, and vehicleROHM CO LTD·Filed 2025·Application pending·0 cites
- 1784US12063030B2Switching device and electronic circuitROHM CO LTD·Filed 2023·Granted Aug 13, 2024·0 cites·10 claims
- 1883US2025219025A1Semiconductor power moduleROHM CO LTD·Filed 2025·Application pending·0 cites
- 1981USD978809SSemiconductor moduleROHM CO LTD·Filed 2020·Granted Feb 21, 2023·7 cites·1 claims
- 2080US11967545B2Semiconductor deviceROHM CO LTD·Filed 2020·Granted Apr 23, 2024·1 cites·18 claims
- 2180US9800239B2Electronic circuitROHM CO LTD·Filed 2014·Granted Oct 24, 2017·5 cites·10 claims
- 2280US2024178110A1Semiconductor moduleROHM CO LTD·Filed 2024·Application pending·0 cites
- 2379US11923278B2Semiconductor moduleROHM CO LTD·Filed 2023·Granted Mar 5, 2024·0 cites·8 claims
- 2478US12395169B2Semiconductor device, semiconductor module, relay unit, battery unit, and vehicleROHM CO LTD·Filed 2023·Granted Aug 19, 2025·0 cites·13 claims
- 2578US10490494B2Semiconductor deviceROHM CO LTD·Filed 2018·Granted Nov 26, 2019·2 cites·13 claims
- 2677US11909329B2Semiconductor unit, semiconductor device, battery unit, and vehicleROHM CO LTD·Filed 2019·Granted Feb 20, 2024·2 cites·20 claims
- 2776US9231466B2Electronic circuitHAYASHIGUCHI MASASHI·Filed 2012·Granted Jan 5, 2016·6 cites·16 claims
- 2875US11664298B2Semiconductor moduleROHM CO LTD·Filed 2022·Granted May 30, 2023·0 cites·17 claims
- 2975US11328985B2Semiconductor moduleROHM CO LTD·Filed 2019·Granted May 10, 2022·1 cites·17 claims
- 3075US10192820B2Semiconductor deviceROHM CO LTD·Filed 2016·Granted Jan 29, 2019·2 cites·14 claims
- 3165US11850953B2Vehicle drive unitMAZDA MOTOR·Filed 2022·Granted Dec 26, 2023·0 cites·20 claims
- 3264USD873226SSemiconductor moduleROHM CO LTD·Filed 2018·Granted Jan 21, 2020·9 cites·1 claims
- 3364US2025046672A1Semiconductor moduleROHM CO LTD·Filed 2024·Application pending·0 cites
- 3463US12143027B2Inverter structureMAZDA MOTOR·Filed 2022·Granted Nov 12, 2024·0 cites·20 claims
- 3563US2024421028A1Cooler and semiconductor moduleROHM CO LTD·Filed 2024·Application pending·0 cites
- 3662US12249878B2Electric drive with arc shaped busbar connected to terminal of smoothing capacitorMAZDA MOTOR·Filed 2022·Granted Mar 11, 2025·0 cites·20 claims
- 3762US12206338B2Electric drive with arc shaped busbar connected to terminal of smoothing capacitorMAZDA MOTOR·Filed 2022·Granted Jan 21, 2025·0 cites·20 claims
- 3862US11784639B2Semiconductor device, semiconductor module, relay unit, battery unit, and vehicleROHM CO LTD·Filed 2019·Granted Oct 10, 2023·0 cites·19 claims
- 3962US2024282681A1Semiconductor device, and semiconductor device mounting bodyROHM CO LTD·Filed 2024·Application pending·0 cites
- 4061US12101917B2Vehicle drive unitMAZDA MOTOR·Filed 2022·Granted Sep 24, 2024·0 cites·20 claims
- 4160US2024244750A1Semiconductor moduleROHM CO LTD·Filed 2024·Application pending·0 cites
- 4260US2025338597A1Semiconductor device and vehicleROHM CO LTD·Filed 2025·Application pending·0 cites
- 4359US12199525B2Inverter having capacitor bus plates connecting to power modulesMAZDA MOTOR·Filed 2022·Granted Jan 14, 2025·0 cites·14 claims
- 4459US10892218B2Semiconductor deviceROHM CO LTD·Filed 2019·Granted Jan 12, 2021·0 cites·12 claims
- 4558US12261595B2Semiconductor deviceROHM CO LTD·Filed 2023·Granted Mar 25, 2025·0 cites·16 claims
- 4658US2024006402A1Semiconductor deviceROHM CO LTD·Filed 2023·Application pending·0 cites
- 4757US2025285932A1Semiconductor device and electric power conversion unitROHM CO LTD·Filed 2025·Application pending·0 cites
- 4854US12381489B2Light-weight high power inverter structure with equalized inductanceMAZDA MOTOR·Filed 2022·Granted Aug 5, 2025·0 cites·5 claims
- 4954US2025233085A1Semiconductor deviceROHM CO LTD·Filed 2025·Application pending·0 cites
- 5053US12355365B2Electric drive unit having arrangement constituting inverter to reduce busbar inductance and installation spaceMAZDA MOTOR·Filed 2022·Granted Jul 8, 2025·0 cites·19 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masashi Hayashiguchi 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 →