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Tomofumi Yamashita

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  • Fujisawa-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ball screw and manufacturing method of nut for ball screw
    • Patent number 9,737,926
    • Issue date Aug 22, 2017
    • NSK Ltd.
    • Toru Harada
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for manufacturing nut for ball screw and ball screw
    • Patent number 8,950,283
    • Issue date Feb 10, 2015
    • NSK Ltd.
    • Atsushi Watanabe
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Linear actuator
    • Patent number 8,656,798
    • Issue date Feb 25, 2014
    • NSK Ltd.
    • Hiroshi Kawahara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Actuator
    • Patent number 8,297,142
    • Issue date Oct 30, 2012
    • NSK Ltd.
    • Daisaku Kawada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball screw mechanism and assembling method of the same
    • Patent number 8,196,486
    • Issue date Jun 12, 2012
    • NSK Ltd.
    • Toru Harada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Linear actuator
    • Patent number 7,347,115
    • Issue date Mar 25, 2008
    • NSK Ltd.
    • Ryoichi Otaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Toroidal-type continuously variable transmission
    • Patent number 7,004,882
    • Issue date Feb 28, 2006
    • NSK Ltd.
    • Takashi Imanishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Toroidal-type continuously variable transmission
    • Patent number 7,004,883
    • Issue date Feb 28, 2006
    • NSK Ltd.
    • Kouji Ishikawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Toroidal type continuously variable transmission
    • Patent number 6,902,509
    • Issue date Jun 7, 2005
    • NSK Ltd.
    • Hisashi Machida
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Toroidal type continuously variable transmission
    • Patent number 6,592,491
    • Issue date Jul 15, 2003
    • NSK Ltd.
    • Hisashi Machida
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    BALL SCREW AND MANUFACTURING METHOD OF NUT FOR BALL SCREW
    • Publication number 20150283600
    • Publication date Oct 8, 2015
    • NSK Ltd.
    • Toru Harada
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    ELECTRIC ACTUATOR
    • Publication number 20150171702
    • Publication date Jun 18, 2015
    • NSK Ltd.
    • Yasuyuki Matsuda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Method for Manufacturing Nut for Ball Screw and Ball Screw
    • Publication number 20130008275
    • Publication date Jan 10, 2013
    • NSK LTD.
    • Atsushi Watanabe
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Ball Screw and Manufacturing Method of Nut for Ball Screw
    • Publication number 20120325036
    • Publication date Dec 27, 2012
    • NSK Ltd.
    • Toru Harada
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Linear Actuator
    • Publication number 20120247240
    • Publication date Oct 4, 2012
    • Hiroshi Kawahara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    CONTINUOUSLY VARIABLE TRANSMISSION, ACTUATOR AND INTERMEDIATE TERMINAL
    • Publication number 20100184543
    • Publication date Jul 22, 2010
    • NSK LTD.
    • Tomofumi Yamashita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ball Screw Mechanism and Assembling Method of the Same
    • Publication number 20080250887
    • Publication date Oct 16, 2008
    • NSK Ltd.
    • Tooru Harada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ball Screw Mechanism
    • Publication number 20080078264
    • Publication date Apr 3, 2008
    • NSK Ltd.
    • Tomofumi Yamashita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Ball screw mechanism
    • Publication number 20060156844
    • Publication date Jul 20, 2006
    • NSK Ltd
    • Tomofumi Yamashita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Linear actuator
    • Publication number 20050155444
    • Publication date Jul 21, 2005
    • NSK Ltd.
    • Ryoichi Otaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Toroidal type continuously variable transmission
    • Publication number 20030195081
    • Publication date Oct 16, 2003
    • NSK Ltd
    • Hisashi Machida
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Toroidal-type continuously variable transmission
    • Publication number 20030060324
    • Publication date Mar 27, 2003
    • NSK Ltd
    • Kouji Ishikawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Toroidal-type continuously variable transmission
    • Publication number 20020115525
    • Publication date Aug 22, 2002
    • NSK Ltd
    • Takashi Imanishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...