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Patents Grants
last 30 patents
Information
Patent Grant
Power conversion device and air conditioner
Patent number
10,680,544
Issue date
Jun 9, 2020
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Ken Kishita
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Inverter and motor drive device, freezing device
Patent number
10,651,774
Issue date
May 12, 2020
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Dongsheng Li
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Motor drive device and refrigeration equipment
Patent number
10,594,239
Issue date
Mar 17, 2020
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Dongsheng Li
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Inverter control apparatus and air conditioner
Patent number
9,893,670
Issue date
Feb 13, 2018
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Rei Kasahara
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Converter, motor driving module, and refrigerating apparatus
Patent number
8,847,534
Issue date
Sep 30, 2014
Hitachi Appliances, Inc.
Dongsheng Li
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Speed controller of magnetic motor
Patent number
8,344,671
Issue date
Jan 1, 2013
Hitachi Industrial Equipment Systems Co., Ltd.
Kazuaki Tobari
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
POWER CONVERSION DEVICE AND AIR CONDITIONER
Publication number
20190131903
Publication date
May 2, 2019
Hitachi-Johnson Controls Air Conditioning, Inc.
Ken KISHITA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE, AND REFRIGERATOR USING...
Publication number
20190097559
Publication date
Mar 28, 2019
Hitachi-Johnson Controls Air Conditioning, Inc.
Dongsheng LI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MOTOR DRIVE DEVICE AND REFRIGERATION EQUIPMENT
Publication number
20190052210
Publication date
Feb 14, 2019
Hitachi-Johnson Controls Air Conditioning, Inc.
Dongsheng LI
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
INVERTER AND MOTOR DRIVE DEVICE, FREEZING DEVICE
Publication number
20180191288
Publication date
Jul 5, 2018
Hitachi-Johnson Controls Air Conditioning, Inc.
Dongsheng LI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
INVERTER CONTROL APPARATUS AND AIR CONDITIONER
Publication number
20170288594
Publication date
Oct 5, 2017
Hitachi-Johnson Controls Air Conditioning, Inc.
Rei KASAHARA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
CONVERTER, MOTOR DRIVING MODULE, AND REFRIGERATING APPARATUS
Publication number
20120319630
Publication date
Dec 20, 2012
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
Dongsheng Li
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SPEED CONTROLLER OF MAGNETIC MOTOR
Publication number
20100148707
Publication date
Jun 17, 2010
Hitachi Industrial Equipment System Co., Ltd.
Kazuaki TOBARI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER