Takeshi UMETSU

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Patents Grantslast 30 patents

Information Patent Grant
Control device and control method for AC motor and AC motor drive s...
- Patent number 11,139,771
- Issue date Oct 5, 2021
- Hitachi Automotive Systems, Ltd.
- Yoshitaka Iwaji
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Control device of synchronous electric motor, integrated motor syst...
- Patent number 10,644,627
- Issue date May 5, 2020
- Hitachi Automotive Systems, Ltd.
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Drive device and method for three-phase brushless motor
- Patent number 10,381,965
- Issue date Aug 13, 2019
- Hitachi Automotive Systems, Ltd.
- Takeshi Umetsu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Synchronous motor control apparatus and drive system using the same
- Patent number 9,923,502
- Issue date Mar 20, 2018
- Hitachi Automotive Systems, Ltd.
- Yoshitaka Iwaji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Brushless motor controller and control method
- Patent number 9,685,894
- Issue date Jun 20, 2017
- Hitachi Automotive Systems, Ltd.
- Masaki Hano
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
CONTROL DEVICE AND CONTROL METHOD FOR AC MOTOR AND AC MOTOR DRIVE S...
- Publication number 20190253014
- Publication date Aug 15, 2019
- Hitachi Automotive Systems, Ltd.
- Yoshitaka IWAJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL DEVICE OF SYNCHRONOUS ELECTRIC MOTOR, INTEGRATED MOTOR SYST...
- Publication number 20180287526
- Publication date Oct 4, 2018
- Hitachi Automotive Systems, Ltd.
- Yoshitaka IWAJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Drive Device and Method for Three-Phase Brushless Motor
- Publication number 20180254722
- Publication date Sep 6, 2018
- Hitachi Automotive Systems, Ltd.
- Takeshi UMETSU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SYNCHRONOUS MOTOR CONTROL APPARATUS AND DRIVE SYSTEM USING THE SAME
- Publication number 20170194889
- Publication date Jul 6, 2017
- Hitachi Automotive Systems, Ltd.
- Yoshitaka IWAJI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BRUSHLESS MOTOR CONTROLLER AND CONTROL METHOD
- Publication number 20170093312
- Publication date Mar 30, 2017
- Hitachi Automotive Systems, Ltd.
- Masaki HANO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER