TREA

Tomiyasu Onuma

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  • Katsuta, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Joint having ball and shaft coupled through plastic deformation
    • Patent number 5,114,263
    • Issue date May 19, 1992
    • Hitachi, Ltd.
    • Hisanobu Kanamaru
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Fluid machine
    • Patent number 4,644,850
    • Issue date Feb 24, 1987
    • Hitachi, Ltd.
    • Hisanobu Kanamaru
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...