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Takeshi TOKUYAMA

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  • Hitachi-shi, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Power Conversion Device
    • Publication number 20240275297
    • Publication date Aug 15, 2024
    • Hitachi Astemo, Ltd.
    • Takahiro ARAKI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER CONVERSION DEVICE
    • Publication number 20240251532
    • Publication date Jul 25, 2024
    • Hitachi Astemo, Ltd.
    • Takeshi TOKUYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC POWER CONVERTER
    • Publication number 20240244807
    • Publication date Jul 18, 2024
    • Hitachi Astemo, Ltd.
    • Takahiro ARAKI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Apparatus
    • Publication number 20240235410
    • Publication date Jul 11, 2024
    • Hitachi Astemo, Ltd.
    • Akira MIMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Apparatus
    • Publication number 20240136936
    • Publication date Apr 25, 2024
    • Hitachi Astemo, Ltd.
    • Akira MIMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE
    • Publication number 20240105693
    • Publication date Mar 28, 2024
    • Hitachi, Ltd
    • Ti CHEN
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    MOTOR CONTROL DEVICE, ELECTROMECHANICAL INTEGRATED UNIT, BOOST CONV...
    • Publication number 20240042867
    • Publication date Feb 8, 2024
    • Hitachi Astemo, Ltd.
    • Takafumi HARA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    POWER SEMICONDUCTOR DEVICE
    • Publication number 20240040702
    • Publication date Feb 1, 2024
    • HITACHI,ASTEMO, LTD.
    • Takeshi TOKUYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Power Semiconductor Device, Power Conversion Device, and Electric S...
    • Publication number 20230395457
    • Publication date Dec 7, 2023
    • Hitachi Astemo, Ltd.
    • Takahiro ARAKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    POWER CONVERSION DEVICE
    • Publication number 20230378025
    • Publication date Nov 23, 2023
    • Hitachi, Ltd
    • Kyota ASAI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Power Semiconductor Device
    • Publication number 20230361001
    • Publication date Nov 9, 2023
    • Hitachi, Ltd
    • Ti CHEN
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    POWER MODULE AND POWER CONVERSION DEVICE USING THE SAME
    • Publication number 20230283190
    • Publication date Sep 7, 2023
    • Hitachi, Ltd
    • Nobutake TSUYUNO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ROTOR OF ROTATING ELECTRICAL MACHINE AND ELECTRICAL DRIVE SYSTEM
    • Publication number 20230283131
    • Publication date Sep 7, 2023
    • Hitachi Astemo, Ltd.
    • Masahiro HORI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC SYSTEM
    • Publication number 20230155453
    • Publication date May 18, 2023
    • Hitachi Astemo, Ltd.
    • Masanori SAWAHATA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    INVERTER INTEGRATED MOTOR
    • Publication number 20230155456
    • Publication date May 18, 2023
    • Hitachi Astemo, Ltd.
    • Takeshi TOKUYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device
    • Publication number 20230135773
    • Publication date May 4, 2023
    • Hitachi Astemo, Ltd.
    • Takashi HIRAO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER CONVERSION DEVICE AND MOTOR-INTEGRATED POWER CONVERSION DEVICE
    • Publication number 20220338370
    • Publication date Oct 20, 2022
    • Hitachi Astemo, Ltd.
    • Takashi HIRAO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SEMICONDUCTOR DEVICE
    • Publication number 20200303360
    • Publication date Sep 24, 2020
    • Hitachi Automotive Systems, Ltd.
    • Takeshi TOKUYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Electric Power Conversion Apparatus
    • Publication number 20200093039
    • Publication date Mar 19, 2020
    • Hitachi, Ltd
    • Takeshi TOKUYAMA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Power Module, Power Converter Device, and Electrically Powered Vehicle
    • Publication number 20190393799
    • Publication date Dec 26, 2019
    • Hitachi Automotive Systems, Ltd.
    • Kinya NAKATSU
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Power Semiconductor Module
    • Publication number 20190295929
    • Publication date Sep 26, 2019
    • Hitachi Automotive Systems, Ltd.
    • Yusuke TAKAGI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    POWER CONVERSION APPARATUS
    • Publication number 20190182993
    • Publication date Jun 13, 2019
    • Hitachi, Ltd
    • Takeshi Tokuyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER SEMICONDUCTOR MODULE, POWER CONVERSION DEVICE USING SAME, AND...
    • Publication number 20190157185
    • Publication date May 23, 2019
    • Hitachi Automotive Systems, Ltd.
    • Nobutake TSUYUNO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Power Conversion Device
    • Publication number 20180278172
    • Publication date Sep 27, 2018
    • Hitachi Automotive Systems, Ltd.
    • Takeshi TOKUYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Structure
    • Publication number 20180254235
    • Publication date Sep 6, 2018
    • Hitachi Automotive Systems, Ltd.
    • NOBUTAKE TSUYUNO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Power Module
    • Publication number 20180211938
    • Publication date Jul 26, 2018
    • Hitachi Automotive Systems, Ltd.
    • Nobutake TSUYUNO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Power Semiconductor Module and Electric Power Conversion Device
    • Publication number 20180041136
    • Publication date Feb 8, 2018
    • Hitachi Automotive Systems, Ltd.
    • Takeshi TOKUYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Converter
    • Publication number 20180013355
    • Publication date Jan 11, 2018
    • Hitachi Automotive Systems, Ltd.
    • Takeshi TOKUYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Electronic Device
    • Publication number 20170365536
    • Publication date Dec 21, 2017
    • Hitachi Automotive Systems, Ltd.
    • Mina AMO
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    ELECTRONIC DEVICE AND METHOD OF MANUFACTURING THE ELECTRONIC DEVICE
    • Publication number 20170309540
    • Publication date Oct 26, 2017
    • Hitachi Automotive Systems, Ltd.
    • Hiroyuki TEMMEI
    • H01 - BASIC ELECTRIC ELEMENTS