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Yoshitaka Iwaji

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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Power Conversion Device, Rotating Machine System, and Diagnosis Method
    • Publication number 20220229113
    • Publication date Jul 21, 2022
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • Kohji MAKI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Monitoring System and Monitoring Method
    • Publication number 20210405118
    • Publication date Dec 30, 2021
    • Hitachi, Ltd
    • Akihiro NAKAMURA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • 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

    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

    POWER CONVERSION DEVICE, ROTATING MACHINE SYSTEM USING SAME, AND DI...
    • Publication number 20210072319
    • Publication date Mar 11, 2021
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kohji MAKI
    • G01 - MEASURING TESTING
  • Information Patent Application

    Rotating Machine Drive System
    • Publication number 20210044238
    • Publication date Feb 11, 2021
    • Hitachi, Ltd
    • Akeshi TAKAHASHI
    • 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

    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

    Motor Control System and Motor Control Method
    • Publication number 20190207544
    • Publication date Jul 4, 2019
    • Hitachi, Ltd
    • Satoshi SUMITA
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • 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 Control System
    • Publication number 20190052214
    • Publication date Feb 14, 2019
    • Satoshi SUMITA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTROMECHANICAL INTEGRAL MOTOR
    • Publication number 20180358863
    • Publication date Dec 13, 2018
    • Hitachi, Ltd
    • Hisashi TANIE
    • 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

    Control Device for Electric Power Steering Apparatus and Electric P...
    • Publication number 20180201303
    • Publication date Jul 19, 2018
    • Hitachi Automotive Systems, Ltd.
    • Takafumi HARA
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Control Device of AC Motor
    • Publication number 20180198386
    • Publication date Jul 12, 2018
    • Hitachi, Ltd
    • Satoshi SUMITA
    • 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

    Linear Motor and Linear Motor Drive System
    • Publication number 20150222167
    • Publication date Aug 6, 2015
    • Hitachi, Ltd
    • Yasuaki Aoyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Electric Motor Drive Device
    • Publication number 20150155805
    • Publication date Jun 4, 2015
    • Hitachi, Ltd
    • Yoshitaka Iwaji
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Three-Phase Synchronous Motor Drive Device
    • Publication number 20150069941
    • Publication date Mar 12, 2015
    • Hitachi, Ltd
    • Yoshitaka Iwaji
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device
    • Publication number 20140340005
    • Publication date Nov 20, 2014
    • Toshifumi Sakai
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Sensorless Driving Apparatus and Sensorless Driving Method for Brus...
    • Publication number 20140084824
    • Publication date Mar 27, 2014
    • Hitachi Automotive Systems, Ltd.
    • Masaki HANO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • 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

    Linear Motor and Positioning Apparatus
    • Publication number 20130093264
    • Publication date Apr 18, 2013
    • Hitachi Ltd.
    • Yasuaki Aoyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Generator and Electricity-Generating System
    • Publication number 20130088099
    • Publication date Apr 11, 2013
    • Hitachi, Ltd
    • Yasuaki Aoyama
    • 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