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Akira Hirai

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sprocket and chain drive system
    • Patent number 12,031,620
    • Issue date Jul 9, 2024
    • Tsubakimoto Chain Co.
    • Shoichiro Shimizu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Silent chain having deformable guide plates
    • Patent number 8,657,711
    • Issue date Feb 25, 2014
    • Tsubakimoto Chain Co.
    • Akira Hirai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain transmission device
    • Patent number 8,246,498
    • Issue date Aug 21, 2012
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sprocket for chain
    • Patent number 8,118,699
    • Issue date Feb 21, 2012
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain transmission device
    • Patent number 7,713,156
    • Issue date May 11, 2010
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain transmission device
    • Patent number 7,699,733
    • Issue date Apr 20, 2010
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Chain transmission device
    • Patent number 7,691,020
    • Issue date Apr 6, 2010
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Silent chain
    • Patent number 7,497,795
    • Issue date Mar 3, 2009
    • Tsubakimoto Chain Co.
    • Takashi Tohara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    SPROCKET AND CHAIN DRIVE SYSTEM
    • Publication number 20240084885
    • Publication date Mar 14, 2024
    • TSUBAKIMOTO CHAIN CO.
    • Shoichiro Shimizu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SILENT CHAIN HAVING DEFORMABLE GUIDE PLATES
    • Publication number 20120071287
    • Publication date Mar 22, 2012
    • Tsubakimoto Chain Co.
    • Akira Hirai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPROCKET FOR CHAIN
    • Publication number 20090286640
    • Publication date Nov 19, 2009
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPROCKET FOR CHAIN
    • Publication number 20090286639
    • Publication date Nov 19, 2009
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    CHAIN TRANSMISSION DEVICE
    • Publication number 20090247340
    • Publication date Oct 1, 2009
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPROCKET FOR CHAIN
    • Publication number 20090209380
    • Publication date Aug 20, 2009
    • Tsubakimoto Chain Co.
    • Akira Hirai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SHOCK ABSORBING STRUCTURE IN IDLER
    • Publication number 20090143178
    • Publication date Jun 4, 2009
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    CHAIN TRANSMISSION
    • Publication number 20090105024
    • Publication date Apr 23, 2009
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Chain transmission device
    • Publication number 20080176688
    • Publication date Jul 24, 2008
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Chain transmission device
    • Publication number 20080171624
    • Publication date Jul 17, 2008
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Chain transmission device
    • Publication number 20080161144
    • Publication date Jul 3, 2008
    • Tsubakimoto Chain Co.
    • Akira Hirai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Chain transmission device
    • Publication number 20080009377
    • Publication date Jan 10, 2008
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Roller chain transmission device
    • Publication number 20070270261
    • Publication date Nov 22, 2007
    • Tsubakimoto Chain Co.
    • Shunji Sakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Silent chain
    • Publication number 20060105872
    • Publication date May 18, 2006
    • Tsubakimoto Chain Co.
    • Takashi Tohara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...