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Keitaro Oka

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  • Fujisawa-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ball screw
    • Patent number 11,506,269
    • Issue date Nov 22, 2022
    • NSK Ltd.
    • Keitaro Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Internal-deflector type ball screw
    • Patent number 11,415,205
    • Issue date Aug 16, 2022
    • NSK Ltd.
    • Keitaro Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball screw
    • Patent number 11,391,350
    • Issue date Jul 19, 2022
    • NSK Ltd.
    • Keitaro Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball screw device
    • Patent number 9,927,010
    • Issue date Mar 27, 2018
    • NSK Ltd.
    • Keitaro Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    BALL SCREW
    • Publication number 20220090659
    • Publication date Mar 24, 2022
    • NSK Ltd.
    • Keitaro OKA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    INTERNAL-DEFLECTOR TYPE BALL SCREW
    • Publication number 20210207693
    • Publication date Jul 8, 2021
    • NSK Ltd.
    • Keitaro OKA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    BALL SCREW
    • Publication number 20200191247
    • Publication date Jun 18, 2020
    • NSK Ltd.
    • Keitaro OKA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ball Screw Device
    • Publication number 20170030446
    • Publication date Feb 2, 2017
    • NSK Ltd.
    • Keitaro Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Seal for Ball Screw Device
    • Publication number 20160238114
    • Publication date Aug 18, 2016
    • NSK LTD.
    • Keitaro OKA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ball Screw Device
    • Publication number 20150122065
    • Publication date May 7, 2015
    • NSK Ltd.
    • Keitaro Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Seal for Rolling Screw, and Rolling Screw
    • Publication number 20140167363
    • Publication date Jun 19, 2014
    • NSK Ltd.
    • Keitaro Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...