Inventor
HAYASHIGUCHI MASASHI
JP47 patents
⚠️ This page may combine multiple inventors who share the name “HAYASHIGUCHI MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
36 patentsUSD799439SOct 10, 2017
Power converting semiconductor module
ROHM CO LTD39 citations94
US11728801B2Aug 15, 2023
Switching device and electronic circuit
ROHM CO LTD4 citations85
USD978809SFeb 21, 2023
Semiconductor module
ROHM CO LTD7 citations85
US11336275B2May 17, 2022
Switching device and electronic circuit
ROHM CO LTD6 citations85
US10950582B2Mar 16, 2021
Semiconductor power module
ROHM CO LTD4 citations84
US10826481B2Nov 3, 2020
Switching device and electronic circuit
ROHM CO LTD6 citations84
US10600764B2Mar 24, 2020
Semiconductor power module
ROHM CO LTD6 citations84
US10263612B2Apr 16, 2019
Switching device and electronic circuit
ROHM CO LTD6 citations84
USD873226SJan 21, 2020
Semiconductor module
ROHM CO LTD9 citations83
US12068741B2Aug 20, 2024
Switching device and electronic circuit
ROHM CO LTD1 citations73
US11936369B2Mar 19, 2024
Switching device and electronic circuit
ROHM CO LTD1 citations73
US11901340B2Feb 13, 2024
Semiconductor power module
ROHM CO LTD1 citations73
US11600602B2Mar 7, 2023
Semiconductor power module
ROHM CO LTD2 citations73
US9800239B2Oct 24, 2017
Electronic circuit
ROHM CO LTD5 citations73
US11909329B2Feb 20, 2024
Semiconductor unit, semiconductor device, battery unit, and vehicle
ROHM CO LTD2 citations72
US11328985B2May 10, 2022
Semiconductor module
ROHM CO LTD1 citations72
USD874412SFeb 4, 2020
Semiconductor module
ROHM CO LTD5 citations72
US10490494B2Nov 26, 2019
Semiconductor device
ROHM CO LTD2 citations72
US10192820B2Jan 29, 2019
Semiconductor device
ROHM CO LTD2 citations72
US12557702B2Feb 17, 2026
Semiconductor device comprising plurality of switching elements and rectifier elements for preventing excessive current
ROHM CO LTD3 citations70
US12395169B2Aug 19, 2025
Semiconductor device, semiconductor module, relay unit, battery unit, and vehicle
ROHM CO LTD0 citations62
US12316307B2May 27, 2025
Switching device and electronic circuit
ROHM CO LTD0 citations62
US12283573B2Apr 22, 2025
Semiconductor power module
ROHM CO LTD0 citations62
US12063030B2Aug 13, 2024
Switching device and electronic circuit
ROHM CO LTD0 citations62
US11967545B2Apr 23, 2024
Semiconductor device
ROHM CO LTD1 citations62
US11923278B2Mar 5, 2024
Semiconductor module
ROHM CO LTD0 citations62
US11784639B2Oct 10, 2023
Semiconductor device, semiconductor module, relay unit, battery unit, and vehicle
ROHM CO LTD0 citations62
US11664298B2May 30, 2023
Semiconductor module
ROHM CO LTD0 citations62
US10892218B2Jan 12, 2021
Semiconductor device
ROHM CO LTD0 citations61
US12573967B2Mar 10, 2026
Power conversion device
ROHM CO LTD0 citations52
US12538854B2Jan 27, 2026
Semiconductor apparatus
ROHM CO LTD0 citations52
US12107029B2Oct 1, 2024
Power module with graphite plate
ROHM CO LTD0 citations52
US12128772B2Oct 29, 2024
Semiconductor unit, battery unit, and vehicle
ROHM CO LTD0 citations51
US9461533B2Oct 4, 2016
Electronic circuit
ROHM CO LTD0 citations51
US11127662B2Sep 21, 2021
Semiconductor device
ROHM CO LTD0 citations50
US12261595B2Mar 25, 2025
Semiconductor device
ROHM CO LTD0 citations48
MAZDA MOTOR
9 patentsUS12143027B2Nov 12, 2024
Inverter structure
MAZDA MOTOR0 citations62
US12381489B2Aug 5, 2025
Light-weight high power inverter structure with equalized inductance
MAZDA MOTOR0 citations52
US12272996B2Apr 8, 2025
Electric drive unit
MAZDA MOTOR0 citations52
US12249878B2Mar 11, 2025
Electric drive with arc shaped busbar connected to terminal of smoothing capacitor
MAZDA MOTOR0 citations52
US12206338B2Jan 21, 2025
Electric drive with arc shaped busbar connected to terminal of smoothing capacitor
MAZDA MOTOR0 citations52
US12199525B2Jan 14, 2025
Inverter having capacitor bus plates connecting to power modules
MAZDA MOTOR0 citations52
US12101917B2Sep 24, 2024
Vehicle drive unit
MAZDA MOTOR0 citations52
US11850953B2Dec 26, 2023
Vehicle drive unit
MAZDA MOTOR0 citations52
US12355365B2Jul 8, 2025
Electric drive unit having arrangement constituting inverter to reduce busbar inductance and installation space
MAZDA MOTOR0 citations50