Patents by Inventor Kohei WATARAI

Kohei WATARAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10086428
    Abstract: The clamping device has a fixed platen, a moving platen which is movable in an mold opening and closing direction relative to the fixed platen, a tie bar which bridges the fixed platen and the moving platen, a pullout drive device which gives to the tie bar a driving force making the tie bar move to the back side of the fixed platen, and a support mechanism which is provided separately from the pullout drive device and support the load of the tie bar when moving the tie bar.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: October 2, 2018
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Toshiharu Fujioka, Kohei Watarai, Saburo Noda
  • Patent number: 9469063
    Abstract: The clamping device has tie bars which are connected to a fixed platen and have engaged parts at a movable platen side, clamping cylinders which are provided on movable platens, half nut devices which are connected to pistons of the clamping cylinders and can mesh with the engaged parts, and stopper devices which restrict the movement of the half nut devices. Each stopper device has at least a driving unit and a stopper part which is driven in a mold opening and closing direction relative to the movable platen by driving of the driving unit and can engage with the half nut device from the fixed platen side. No winding transmission mechanism is interposed between the driving unit and the stopper part.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: October 18, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Kohei Watarai, Daisuke Yasuda
  • Publication number: 20160184887
    Abstract: The clamping device has a fixed platen, a moving platen which is movable in an mold opening and closing direction relative to the fixed platen, a tie bar which bridges the fixed platen and the moving platen, a pullout drive device which give to the tie bar a driving force making the tie bar move to the back side of the fixed platen, and a support mechanism which is provided separately from the pullout drive device and support the load of the tie bar when moving the tie bar.
    Type: Application
    Filed: December 23, 2015
    Publication date: June 30, 2016
    Inventors: Toshiharu FUJIOKA, Kohei WATARAI, Saburo NODA
  • Publication number: 20160158984
    Abstract: The clamping device has tie bars which are connected to a fixed platen and have engaged parts at a movable platen side, clamping cylinders which are provided on movable platens, half nut devices which are connected to pistons of the clamping cylinders and can mesh with the engaged parts, and stopper devices which restrict the movement of the half nut devices. Each stopper device has at least a driving unit and a stopper part which is driven in a mold opening and closing direction relative to the movable platen by driving of the driving unit and can engage with the half nut device from the fixed platen side. No winding transmission mechanism is interposed between the driving unit and the stopper part.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 9, 2016
    Inventors: Kohei WATARAI, Daisuke YASUDA