TREA

Hikaru Ishida

Follow

Person

  • Mie, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Ball bearing
    • Patent number 10,914,343
    • Issue date Feb 9, 2021
    • NTN Corporation
    • Naoaki Tsuji
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Synthetic resin retainer and ball bearing
    • Patent number 9,982,716
    • Issue date May 29, 2018
    • NTN Corporation
    • Naoaki Tsuji
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Retainer made of synthetic resin for use in ball bearing and ball b...
    • Patent number 9,022,662
    • Issue date May 5, 2015
    • NTN Corporation
    • Chiharu Ito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rolling contact member and rolling bearing
    • Patent number 8,371,758
    • Issue date Feb 12, 2013
    • NTN CORPORATION
    • Katsutoshi Muramatsu
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents