TREA

Keitaro Yonezawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Motor and hydraulic pump device including the motor
    • Patent number 12,066,022
    • Issue date Aug 20, 2024
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cylinder device
    • Patent number 11,994,155
    • Issue date May 28, 2024
    • Kosmek Ltd.
    • Hideaki Yokota
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Pneumatic cylinder device with holding valve
    • Patent number 11,572,903
    • Issue date Feb 7, 2023
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    LNK type clamp device
    • Patent number 11,207,752
    • Issue date Dec 28, 2021
    • Kosmek Ltd.
    • Masahiro Yoshimi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Attachment/detachment structure for clamp arm of clamping device
    • Patent number 11,141,837
    • Issue date Oct 12, 2021
    • Kosmek Ltd.
    • Masahiro Yoshimi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rotary clamp
    • Patent number 11,110,560
    • Issue date Sep 7, 2021
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cylinder device with force multiplication mechanism
    • Patent number 10,024,340
    • Issue date Jul 17, 2018
    • Kosmek Ltd.
    • Hideaki Yokota
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Cylinder apparatus
    • Patent number 10,018,191
    • Issue date Jul 10, 2018
    • Kosmek Ltd.
    • Hideaki Yokota
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Cylinder apparatus
    • Patent number 9,909,600
    • Issue date Mar 6, 2018
    • Kosmek Ltd.
    • Hideaki Yokota
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Clamp device
    • Patent number 9,833,866
    • Issue date Dec 5, 2017
    • Kosmek Ltd
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Actuator and clamp device using same
    • Patent number 9,573,232
    • Issue date Feb 21, 2017
    • Kosmek Ltd
    • Hideaki Yokota
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cylinder device with force multiplier
    • Patent number 9,458,865
    • Issue date Oct 4, 2016
    • Kosmek Ltd.
    • Hideaki Yokota
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Clamping device
    • Patent number 8,366,090
    • Issue date Feb 5, 2013
    • Kosmek, Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Clamping apparatus
    • Patent number 8,302,947
    • Issue date Nov 6, 2012
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Positioning device and clamping system with the device
    • Patent number 7,793,924
    • Issue date Sep 14, 2010
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Positioning apparatus and clamping system having the same
    • Patent number 7,758,030
    • Issue date Jul 20, 2010
    • Kosmek Ltd
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Positioning apparatus and clamping system having the same
    • Patent number 7,758,031
    • Issue date Jul 20, 2010
    • Kosmek Ltd
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Screw engagement type clamp device, clamping system, and fluid pres...
    • Patent number 7,618,030
    • Issue date Nov 17, 2009
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Clamping apparatus and clamping system
    • Patent number 7,377,505
    • Issue date May 27, 2008
    • Kosmek, Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Clamping device and clamping system using the same
    • Patent number 7,325,798
    • Issue date Feb 5, 2008
    • Kosmek Ltd
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Aligning drive mechanism and positioning apparatus having this mech...
    • Patent number 7,303,186
    • Issue date Dec 4, 2007
    • Kosmek, Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spring-lock type clamp device
    • Patent number 7,175,169
    • Issue date Feb 13, 2007
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Positioning device
    • Patent number 7,168,695
    • Issue date Jan 30, 2007
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Positioning device
    • Patent number 7,165,763
    • Issue date Jan 23, 2007
    • Kosmek Ltd.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rotary clamp
    • Patent number 6,902,158
    • Issue date Jun 7, 2005
    • Kabushiki Kaisha Kosmek
    • Keitaro Yonezawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Cylinder assembly
    • Patent number 6,761,103
    • Issue date Jul 13, 2004
    • Kabushiki Kaisha Kosmek
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Automatic positioning device
    • Patent number 6,755,409
    • Issue date Jun 29, 2004
    • Kabushiki Kaisha Kosmek
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rotary clamp
    • Patent number 6,666,440
    • Issue date Dec 23, 2003
    • Kabushiki Kaisha Kosmek
    • Keitaro Yonezawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rotary clamp
    • Patent number 6,663,093
    • Issue date Dec 16, 2003
    • Kabushiki Kaisha Kosmek
    • Keitaro Yonezawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Clamping apparatus
    • Patent number 6,619,646
    • Issue date Sep 16, 2003
    • Kabushiki Kaisha Kosmek
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    MOTOR AND HYDRAULIC PUMP DEVICE INCLUDING THE MOTOR
    • Publication number 20220325705
    • Publication date Oct 13, 2022
    • KOSMEK LTD.
    • Keitaro YONEZAWA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PNEUMATIC CYLINDER DEVICE WITH HOLDING VALVE
    • Publication number 20220074436
    • Publication date Mar 10, 2022
    • KOSMEK LTD.
    • Keitaro YONEZAWA
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    CYLINDER DEVICE
    • Publication number 20210164499
    • Publication date Jun 3, 2021
    • KOSMEK LTD.
    • Hideaki Yokota
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    LNK TYPE CLAMP DEVICE
    • Publication number 20210053167
    • Publication date Feb 25, 2021
    • KOSMEK LTD
    • MASAHIRO YOSHIMI
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ROTARY CLAMP
    • Publication number 20200230757
    • Publication date Jul 23, 2020
    • KOSMEK LTD
    • KEITARO YONEZAWA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ATTACHMENT/DETACHMENT STRUCTURE FOR CLAMP ARM OF CLAMPING DEVICE
    • Publication number 20180071894
    • Publication date Mar 15, 2018
    • KOSMEK LTD
    • Masahiro YOSHIMI
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    CYLINDER APPARATUS
    • Publication number 20150345521
    • Publication date Dec 3, 2015
    • KOSMEK LTD.
    • Hideaki Yokota
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    CYLINDER APPARATUS
    • Publication number 20150308423
    • Publication date Oct 29, 2015
    • Kosmek Ltd.
    • Hideaki Yokota
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CYLINDER DEVICE WITH FORCE MULTIPLICATION MECHANISM
    • Publication number 20150247512
    • Publication date Sep 3, 2015
    • Kosmek Ltd.
    • Hideaki Yokota
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    CLAMP DEVICE
    • Publication number 20150202726
    • Publication date Jul 23, 2015
    • KOSMEK LTD.
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ACTUATOR AND CLAMP DEVICE USING SAME
    • Publication number 20140191456
    • Publication date Jul 10, 2014
    • KOSMEK LTD.
    • Hideaki Yokota
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    CYLINDER DEVICE WITH FORCE MULTIPLIER
    • Publication number 20140109759
    • Publication date Apr 24, 2014
    • KOSMEK, LTD.
    • Hideaki Yokota
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    CLAMPING APPARATUS
    • Publication number 20100308521
    • Publication date Dec 9, 2010
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Clamp Device and Clamping System Using Such Device
    • Publication number 20090315239
    • Publication date Dec 24, 2009
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Pressurized Fluid Discharge Device
    • Publication number 20090289208
    • Publication date Nov 26, 2009
    • Keitaro Yonezawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    SWING CLAMP
    • Publication number 20090152784
    • Publication date Jun 18, 2009
    • Keitaro Yonezawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Flow Control Valve and Cylinder Apparatus Having the Same
    • Publication number 20080237514
    • Publication date Oct 2, 2008
    • Keitaro Yonezawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Screw Engagement Type Clamp Device, Clamping System, and Fluid Pres...
    • Publication number 20080189924
    • Publication date Aug 14, 2008
    • Keitaro Yonezawa
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Positioning apparatus and clamping system having the same
    • Publication number 20080157451
    • Publication date Jul 3, 2008
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Positioning apparatus and clamping system having the same
    • Publication number 20070138725
    • Publication date Jun 21, 2007
    • KOSMEK LTD
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Positioning device and clamping system having the same
    • Publication number 20060289709
    • Publication date Dec 28, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Positioning device and clamping system with the device
    • Publication number 20060279034
    • Publication date Dec 14, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Clamping device
    • Publication number 20060273504
    • Publication date Dec 7, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Clampig device and clamping system
    • Publication number 20060261534
    • Publication date Nov 23, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Clamp device
    • Publication number 20060226591
    • Publication date Oct 12, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Positioning device
    • Publication number 20060186591
    • Publication date Aug 24, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Spring-lock type clamp device
    • Publication number 20060131803
    • Publication date Jun 22, 2006
    • Keitaro Yonezawa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Aligning drive mechanism and positioning apparatus having this mech...
    • Publication number 20060049568
    • Publication date Mar 9, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Clamping device and clamping system using the same
    • Publication number 20060049569
    • Publication date Mar 9, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Positioning device
    • Publication number 20060033255
    • Publication date Feb 16, 2006
    • Keitaro Yonezawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR