Osamu Hirano

Person

  • Kuwana, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Grease-sealed rolling contact bearing

    • Patent number 5,301,923
    • Issue date Apr 12, 1994
    • NTN Corporation
    • Mitsunari Asao
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...