TREA

Tsunemasa Okumura

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  • Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cast wheel
    • Patent number 4,861,113
    • Issue date Aug 29, 1989
    • Topy Kogyo Kabushiki Kaisha
    • Tadashi Imamura
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Method for processing a nut seat on a wheel
    • Patent number 4,821,388
    • Issue date Apr 18, 1989
    • Topy Kogyo Kabushiki Kaisha
    • Tsunemasa Okumura
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...