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Hironao Takahashi

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  • Iwata, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Four-stroke engine
    • Patent number 6,273,047
    • Issue date Aug 14, 2001
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Masaaki Yoshikawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Cylinder head for variable valve timing
    • Patent number 6,076,492
    • Issue date Jun 20, 2000
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hironao Takahashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Cam shaft for engine
    • Patent number 6,035,821
    • Issue date Mar 14, 2000
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hironao Takahashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Variable valve timing arrangement for engine
    • Patent number 5,954,019
    • Issue date Sep 21, 1999
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Masaaki Yoshikawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Lubrication and camshaft control system for engine
    • Patent number 5,718,196
    • Issue date Feb 17, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Shigenobu Uchiyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS