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Takeshi Oyaizu

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  • Kakegawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Four cycle engine
    • Patent number 5,385,125
    • Issue date Jan 31, 1995
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Takeshi Oyaizu
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Four cycle engine
    • Patent number 5,222,464
    • Issue date Jun 29, 1993
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Takeshi Oyaizu
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Means for variable valve timing for engine
    • Patent number 4,726,331
    • Issue date Feb 23, 1988
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Takeshi Oyaizu
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Valve timing control means for engine
    • Patent number 4,715,333
    • Issue date Dec 29, 1987
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Takeshi Oyaizu
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Valve timing control means for engine
    • Patent number 4,685,429
    • Issue date Aug 11, 1987
    • Yamaha
    • Takeshi Oyaizu
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS