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Kazuaki Tobari

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Patents Grantslast 30 patents

  • Information Patent Grant

    Power conversion device
    • Patent number 12,341,447
    • Issue date Jun 24, 2025
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power conversion device
    • Patent number 12,341,448
    • Issue date Jun 24, 2025
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power converter apparatus
    • Patent number 12,334,847
    • Issue date Jun 17, 2025
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor control device
    • Patent number 12,308,771
    • Issue date May 20, 2025
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Mitsuru Matsubara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor control device
    • Patent number 11,831,262
    • Issue date Nov 28, 2023
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Mitsuru Matsubara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor control device and automatic adjustment method for same
    • Patent number 11,777,427
    • Issue date Oct 3, 2023
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Mitsuru Matsubara
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power conversion device
    • Patent number 11,575,338
    • Issue date Feb 7, 2023
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power conversion device
    • Patent number 11,437,944
    • Issue date Sep 6, 2022
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power conversion apparatus
    • Patent number 11,424,707
    • Issue date Aug 23, 2022
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Induction motor overheat monitoring method, induction motor monitor...
    • Patent number 11,303,236
    • Issue date Apr 12, 2022
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Guangbin Zhou
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    AC electric motor control device
    • Patent number 11,273,712
    • Issue date Mar 15, 2022
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yoshitaka Iwaji
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Motor drive device, controller, and electric vehicle system
    • Patent number 11,239,784
    • Issue date Feb 1, 2022
    • Hitachi Astemo, Ltd.
    • Noriya Nakao
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor drive system
    • Patent number 11,196,377
    • Issue date Dec 7, 2021
    • Hitachi Astemo, Ltd.
    • Midori Takaoka
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Synchronous motor control apparatus
    • Patent number 10,903,767
    • Issue date Jan 26, 2021
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Agnes Hadinata
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor control device and work machine using the same
    • Patent number 9,698,716
    • Issue date Jul 4, 2017
    • Hitachi Construction Machinery Co., Ltd.
    • Kazuaki Tobari
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Drive system for synchronous electrical motor
    • Patent number 8,884,575
    • Issue date Nov 11, 2014
    • Hitachi Automotive Systems, Ltd.
    • Ryoichi Takahata
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Synchronous motor drive system and synchronous motor
    • Patent number 8,878,480
    • Issue date Nov 4, 2014
    • Hitachi Automotive Systems, Ltd.
    • Yoshitaka Iwaji
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control apparatus for permanent magnet motor
    • Patent number 8,779,701
    • Issue date Jul 15, 2014
    • Kokusan Denki Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Synchronous electric motor drive system
    • Patent number 8,766,575
    • Issue date Jul 1, 2014
    • Hitachi Automotive Systems, Ltd.
    • Yoshitaka Iwaji
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control apparatus and control method for AC electric motor
    • Patent number 8,531,148
    • Issue date Sep 10, 2013
    • Hitachi, Ltd.
    • Satoshi Sumita
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control unit and control method for permanent magnet synchronous motor
    • Patent number 8,436,563
    • Issue date May 7, 2013
    • Hitachi, Ltd.
    • Satoshi Sumita
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Torque ripple suppression control device for permanent magnet motor...
    • Patent number 8,410,735
    • Issue date Apr 2, 2013
    • Kokusan Denki Co., Ltd.
    • Kazuaki Tobari
    • 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
  • Information Patent Grant

    Torque controller for permanent magnet synchronous motor
    • Patent number 8,305,019
    • Issue date Nov 6, 2012
    • Hitachi Car Engineering Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Position sensorless controller for permanent magnet motor
    • Patent number 8,106,619
    • Issue date Jan 31, 2012
    • Hitachi Industrial Equipment Systems Co. Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control apparatus for AC motor
    • Patent number 8,044,618
    • Issue date Oct 25, 2011
    • Hitachi, Ltd.
    • Junnosuke Nakatsugawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Semiconductor power converter
    • Patent number 7,919,941
    • Issue date Apr 5, 2011
    • Hitachi, Ltd.
    • Shigehisa Aoyagi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Controller and constant measuring apparatus for AC motor
    • Patent number 7,825,620
    • Issue date Nov 2, 2010
    • Hitachi, Ltd.
    • Junnosuke Nakatsugawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Vector controller for a permanent magnet motor and inverter module
    • Patent number 7,821,223
    • Issue date Oct 26, 2010
    • Hitachi, Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Beat-less controller for permanent magnet motor
    • Patent number 7,808,202
    • Issue date Oct 5, 2010
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki Tobari
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    MOTOR CONTROL DEVICE AND ELECTRIC VEHICLE
    • Publication number 20250183827
    • Publication date Jun 5, 2025
    • Hitachi Astemo, Ltd.
    • Shun TANIGUCHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device
    • Publication number 20250158548
    • Publication date May 15, 2025
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER CONVERSION DEVICE
    • Publication number 20250147563
    • Publication date May 8, 2025
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki TOBARI
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    SYNCHRONOUS MACHINE CONTROL DEVICE, SYNCHRONOUS MACHINE CONTROL MET...
    • Publication number 20250141381
    • Publication date May 1, 2025
    • Hitachi Astemo, Ltd.
    • Shun TANIGUCHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Motor Control Device and Method for Automatic Adjustment Thereof
    • Publication number 20250112573
    • Publication date Apr 3, 2025
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Mitsuru MATSUBARA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Converter
    • Publication number 20250062708
    • Publication date Feb 20, 2025
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SYNCHRONOUS-MOTOR CONTROL DEVICE AND ELECTRIC VEHICLE
    • Publication number 20240356470
    • Publication date Oct 24, 2024
    • Hitachi Astemo, Ltd.
    • Shun TANIGUCHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Synchronous Machine Control Device, Synchronous Machine Control Met...
    • Publication number 20240171107
    • Publication date May 23, 2024
    • Hitachi Astemo, Ltd.
    • Shun TANIGUCHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device
    • Publication number 20240097589
    • Publication date Mar 21, 2024
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Converter Apparatus
    • Publication number 20240079982
    • Publication date Mar 7, 2024
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Motor Control Device
    • Publication number 20240072704
    • Publication date Feb 29, 2024
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Mitsuru MATSUBARA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device
    • Publication number 20230299700
    • Publication date Sep 21, 2023
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SYNCHRONOUS MACHINE CONTROL DEVICE, SYNCHRONOUS MACHINE CONTROL MET...
    • Publication number 20230155529
    • Publication date May 18, 2023
    • Hitachi Astemo, Ltd.
    • Shun TANIGUCHI
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Motor Control Device
    • Publication number 20230066812
    • Publication date Mar 2, 2023
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Mitsuru MATSUBARA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Motor Control Device and Automatic Adjustment Method For Same
    • Publication number 20220321043
    • Publication date Oct 6, 2022
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Mitsuru MATSUBARA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device
    • Publication number 20220094291
    • Publication date Mar 24, 2022
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    AC Electric Motor Control Device
    • Publication number 20210328537
    • Publication date Oct 21, 2021
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Yoshitaka IWAJI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device
    • Publication number 20210273591
    • Publication date Sep 2, 2021
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    MOTOR DRIVE DEVICE, CONTROLLER, AND ELECTRIC VEHICLE SYSTEM
    • Publication number 20210257946
    • Publication date Aug 19, 2021
    • HitachiI Automotive Systems, Ltd.
    • Noriya NAKAO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER CONVERSION APPARATUS
    • Publication number 20210152113
    • Publication date May 20, 2021
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    INDUCTION MOTOR OVERHEAT MONITORING METHOD, INDUCTION MOTOR MONITOR...
    • Publication number 20210152111
    • Publication date May 20, 2021
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Guangbin ZHOU
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    MOTOR DRIVE SYSTEM
    • Publication number 20200389117
    • Publication date Dec 10, 2020
    • Hitachi Automotive Systems, Ltd.
    • Midori TAKAOKA
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Synchronous Motor Control Apparatus
    • Publication number 20200052620
    • Publication date Feb 13, 2020
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Agnes HADINATA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    MOTOR CONTROL DEVICE AND WORK MACHINE USING THE SAME
    • Publication number 20140176028
    • Publication date Jun 26, 2014
    • Kazuaki Tobari
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Driving System For Synchronous Motor
    • Publication number 20140077738
    • Publication date Mar 20, 2014
    • Hitachi, Ltd
    • Yoshitaka Iwaji
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Drive System For Synchronous Electrical Motor
    • Publication number 20130272899
    • Publication date Oct 17, 2013
    • Hitachi Automotive Systems, Ltd.
    • Ryoichi TAKAHATA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Synchronous Electric Motor Drive System
    • Publication number 20130243625
    • Publication date Sep 19, 2013
    • HITACHI CAR ENGINEERING CO., LTD.
    • Yoshitaka Iwaji
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Synchronous Motor Drive System and Synchronous Motor
    • Publication number 20130057193
    • Publication date Mar 7, 2013
    • Hitachi Automotive Systems, Ltd.
    • Yoshitaka Iwaji
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL APPARATUS AND CONTROL METHOD FOR AC ELECTRIC MOTOR
    • Publication number 20120001581
    • Publication date Jan 5, 2012
    • Hitachi, Ltd.
    • Satoshi SUMITA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONTROL APPARATUS FOR PERMANENT MAGNET MOTOR
    • Publication number 20110241586
    • Publication date Oct 6, 2011
    • Kazuaki TOBARI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER