Inventor
TSUMURA AKIHIRO
JP27 patents
⚠️ This page may combine multiple inventors who share the name “TSUMURA AKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
22 patentsUS9935569B2Apr 3, 2018
Motor drive control apparatus, compressor, fan, and air-conditioning apparatus
MITSUBISHI ELECTRIC CORP17 citations85
US9787246B2Oct 10, 2017
Motor drive control device, compressor, air-sending device, and air-conditioning apparatus
MITSUBISHI ELECTRIC CORP14 citations84
US9712071B2Jul 18, 2017
Power conversion device and air-conditioning apparatus
MITSUBISHI ELECTRIC CORP15 citations84
US9692312B2Jun 27, 2017
Power conversion apparatus, and air-conditioning apparatus using the same
MITSUBISHI ELECTRIC CORP17 citations84
US9941834B2Apr 10, 2018
Power conversion apparatus and air-conditioning apparatus including the power conversion apparatus
MITSUBISHI ELECTRIC CORP12 citations82
US9998007B2Jun 12, 2018
Boost converter with flying capacitor and refrigeration circuit
MITSUBISHI ELECTRIC CORP3 citations73
US10263539B2Apr 16, 2019
Power converter and air-conditioning apparatus using the same
MITSUBISHI ELECTRIC CORP5 citations72
US11211875B2Dec 28, 2021
Power converter, compressor, air-sending device, and air-conditioning apparatus
MITSUBISHI ELECTRIC CORP1 citations62
US11012011B2May 18, 2021
Motor control device and air conditioner
MITSUBISHI ELECTRIC CORP0 citations62
US11658601B2May 23, 2023
Motor control device and air-conditioning apparatus having the same
MITSUBISHI ELECTRIC CORP1 citations60
US11509232B2Nov 22, 2022
Power converter and air-conditioning apparatus using the same
MITSUBISHI ELECTRIC CORP0 citations52
US9742267B2Aug 22, 2017
Power conversion apparatus and refrigeration air-conditioning apparatus
MITSUBISHI ELECTRIC CORP1 citations52
US9621025B2Apr 11, 2017
Backflow preventing device, power conversion apparatus, motor driver, and refrigerating and air-conditioning apparatus
MITSUBISHI ELECTRIC CORP0 citations52
US11456684B2Sep 27, 2022
Electric motor control device
MITSUBISHI ELECTRIC CORP0 citations51
US11424698B2Aug 23, 2022
Motor control device and air-conditioning device
MITSUBISHI ELECTRIC CORP0 citations51
US11196361B2Dec 7, 2021
Electric motor control device
MITSUBISHI ELECTRIC CORP0 citations51
US12334809B2Jun 17, 2025
Power supply shut-off control device
MITSUBISHI ELECTRIC CORP0 citations48
US11133762B2Sep 28, 2021
Drive system, fluid utilization apparatus, and air conditioner
MITSUBISHI ELECTRIC CORP0 citations47
US11682989B2Jun 20, 2023
Motor control device
MITSUBISHI ELECTRIC CORP0 citations44
US10404196B2Sep 3, 2019
Backflow preventing device, power conversion apparatus, and refrigerating and air-conditioning apparatus
MITSUBISHI ELECTRIC CORP0 citations42
US10116205B2Oct 30, 2018
Power conversion device and refrigerating and air-conditioning apparatus
MITSUBISHI ELECTRIC CORP0 citations42
US10003184B2Jun 19, 2018
Backflow preventing device, power conversion device, and refrigeration air-conditioning apparatus
MITSUBISHI ELECTRIC CORP0 citations42