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Kunihiko Ozawa

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  • Tsurukawa 4, Machida, Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process and apparatus for producing a lock nut
    • Patent number 5,201,686
    • Issue date Apr 13, 1993
    • Kunihiko Ozawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method of making lock nuts
    • Patent number 4,603,446
    • Issue date Aug 5, 1986
    • Kunihiko Ozawa
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...