Inventor
KAJIYAMA Takuya
JP33 patents
Patents
33 patentsUS12212251B2Jan 28, 2025
Power conversion device having converter cells connected in series in a multiplexed manner and each including an energy storage element
MITSUBISHI ELECTRIC CORP2 citations73
US12057787B2Aug 6, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP2 citations73
US12015354B2Jun 18, 2024
Power conversion device capable of suppressing a harmonic component in an output voltage from an arm that increases after bypass of a failed converter cell
MITSUBISHI ELECTRIC CORP2 citations72
US11909307B2Feb 20, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP2 citations72
US11757377B2Sep 12, 2023
Power conversion device
MITSUBISHI ELECTRIC CORP3 citations68
US12413156B2Sep 9, 2025
Capacitor balancing control in an HVDC MMC
MITSUBISHI ELECTRIC CORP1 citations64
US12218606B2Feb 4, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP1 citations62
US11750080B2Sep 5, 2023
Power conversion device
MITSUBISHI ELECTRIC CORP1 citations62
US11428748B2Aug 30, 2022
System and method for testing power conversion device
MITSUBISHI ELECTRIC CORP0 citations62
US11336169B2May 17, 2022
Power conversion device
MITSUBISHI ELECTRIC CORP1 citations62
US11038432B2Jun 15, 2021
Power conversion device
MITSUBISHI ELECTRIC CORP1 citations60
US12348127B2Jul 1, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations52
US12322969B2Jun 3, 2025
Power conversion system
MITSUBISHI ELECTRIC CORP0 citations52
US12308763B2May 20, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations52
US12273045B2Apr 8, 2025
Power conversion device with individual cell and arm balancing
MITSUBISHI ELECTRIC CORP0 citations52
US12255544B2Mar 18, 2025
Power conversion device that performs power conversion between DC circuit and AC circuit
MITSUBISHI ELECTRIC CORP0 citations52
US12199524B2Jan 14, 2025
Power conversion device that performs power conversion between DC circuit and AC circuit
MITSUBISHI ELECTRIC CORP0 citations52
US12081112B2Sep 3, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations52
US12081138B2Sep 3, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations52
US12009759B2Jun 11, 2024
Power conversion system
MITSUBISHI ELECTRIC CORP0 citations52
US12525895B2Jan 13, 2026
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations51
US12456932B2Oct 28, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations51
US11936306B2Mar 19, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations51
US11532990B2Dec 20, 2022
Power conversion device that performs DC-to-DC conversion
MITSUBISHI ELECTRIC CORP0 citations51
US11515778B2Nov 29, 2022
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations51
US11316433B2Apr 26, 2022
Power conversion device including first and second bridge circuits
MITSUBISHI ELECTRIC CORP0 citations51
US10931113B2Feb 23, 2021
Power conversion device and power system performing protection control for suppressing received power
MITSUBISHI ELECTRIC CORP0 citations51
US12500528B2Dec 16, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations50
US12453031B2Oct 21, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations50
US12438476B2Oct 7, 2025
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations50
US12169227B2Dec 17, 2024
Testing device and testing method for power converters
MITSUBISHI ELECTRIC CORP0 citations50
US12166410B2Dec 10, 2024
Power conversion device
MITSUBISHI ELECTRIC CORP0 citations49
US10790761B2Sep 29, 2020
Power conversion device and DC power transmission system
MITSUBISHI ELECTRIC CORP0 citations41