TREA

Kanzo Akamatsu

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  • Kashiwa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Structure of front fork for bicycle
    • Patent number 5,860,666
    • Issue date Jan 19, 1999
    • Sakae Co., Ltd.
    • Kanzo Akamatsu
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Belt driving apparatus for bicycle
    • Patent number 4,768,998
    • Issue date Sep 6, 1988
    • Sakae Ringyo Co., Ltd.
    • Shinichiro Hirose
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS