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Tohru Maruyama

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Patents Grantslast 30 patents

  • Information Patent Grant

    Spindle motor using dynamic pressure bearings
    • Patent number 5,357,162
    • Issue date Oct 18, 1994
    • Ebara Corporation
    • Shunichi Aiyoshizawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...