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Hiroshi Ikutake

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for manufacturing a piston ring
    • Patent number 4,499,643
    • Issue date Feb 19, 1985
    • Nippon Piston Ring Co., Ltd.
    • Hiroshi Ikutake
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Process for manufacturing a piston ring
    • Patent number 4,497,102
    • Issue date Feb 5, 1985
    • Nippon Piston Ring Co., Ltd.
    • Hiroshi Ikutake
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR