TREA

Akira Kebukawa

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  • Kawasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Accumulator
    • Patent number 4,997,009
    • Issue date Mar 5, 1991
    • NHK Spring Co., Ltd.
    • Yoshiharu Niikura
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Coated coil spring
    • Patent number 4,763,882
    • Issue date Aug 16, 1988
    • NHK Spring Co., Ltd.
    • Masakazu Nishiyama
    • B60 - VEHICLES IN GENERAL