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Hiroaki Watanabe

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  • Atsugi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piston of internal combustion engine
    • Patent number 6,357,341
    • Issue date Mar 19, 2002
    • Unisia Jecs Corporation
    • Hiroaki Watanabe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston for internal combustion engines
    • Patent number 5,894,824
    • Issue date Apr 20, 1999
    • Unisia Jecs Corporation
    • Hiroaki Watanabe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston for internal combustion engine
    • Patent number 5,404,792
    • Issue date Apr 11, 1995
    • Unisia Jecs Corporation
    • Hiroaki Watanabe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Engine piston
    • Patent number 5,331,932
    • Issue date Jul 26, 1994
    • Unisia Jecs Corporation
    • Hiroaki Watanabe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Internal combustion engine piston
    • Patent number 5,076,226
    • Issue date Dec 31, 1991
    • Atsugi Unisia Corporation
    • Hiroaki Watanabe
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    PHASE VARYING DEVICE OF ENGINE
    • Publication number 20090260590
    • Publication date Oct 22, 2009
    • NITTAN VALVE CO., LTD.
    • Hiroaki Watanabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES