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Ryozo Masaki

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Claw pole rotating electric machine
    • Patent number 7,605,517
    • Issue date Oct 20, 2009
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yuji Enomoto
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electronic throttle valve control apparatus
    • Patent number 6,390,064
    • Issue date May 21, 2002
    • Hitachi, Ltd.
    • Katsuji Marumoto
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Electronic throttle valve control apparatus
    • Patent number 6,253,733
    • Issue date Jul 3, 2001
    • Hitachi, Ltd.
    • Katsuji Marumoto
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Motor control apparatus
    • Patent number 6,242,882
    • Issue date Jun 5, 2001
    • Hitachi, Ltd.
    • Satoru Kaneko
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor control method and motor control system
    • Patent number 6,225,774
    • Issue date May 1, 2001
    • Hitachi, Ltd.
    • Ryozo Masaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electronic throttle valve control apparatus
    • Patent number 6,055,960
    • Issue date May 2, 2000
    • Hitachi, Ltd.
    • Katsuji Marumoto
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Motor control method and motor control system
    • Patent number 6,043,624
    • Issue date Mar 28, 2000
    • Hitachi, Ltd.
    • Ryozo Masaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor control apparatus
    • Patent number 6,005,365
    • Issue date Dec 21, 1999
    • Hitachi, Ltd.
    • Satoru Kaneko
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    Claw pole rotating electric machine
    • Publication number 20070075605
    • Publication date Apr 5, 2007
    • Yuji Enomoto
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Electronic throttle valve control apparatus
    • Publication number 20010015196
    • Publication date Aug 23, 2001
    • Hitachi, Ltd.
    • Katsuji Marumoto
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS