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Yoshitsugu Hiraguchi

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  • Iwata, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Aluminum alloy chain and method of making same
    • Patent number 5,327,715
    • Issue date Jul 12, 1994
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Yoshitsugu Hiraguchi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Exhaust gas control device for motorcycles
    • Patent number 4,999,999
    • Issue date Mar 19, 1991
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Naohisa Takahashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS