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Tetsuo Udagawa

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  • Hitachinaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Turbo-charger for internal-combustion engine
    • Patent number 6,793,468
    • Issue date Sep 21, 2004
    • Hitachi, Ltd.
    • Kazuo Ojima
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Variable displacement turbo supercharger
    • Patent number 6,558,117
    • Issue date May 6, 2003
    • Hitachi, Ltd.
    • Masashi Fukaya
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Supercharger for engine
    • Patent number 6,082,341
    • Issue date Jul 4, 2000
    • Hitachi, Ltd.
    • Nobukatsu Arai
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Turbo-charger for internal-combustion engine
    • Publication number 20030026715
    • Publication date Feb 6, 2003
    • Kazuo Ojima
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...