Patents by Inventor Yuji SUZUMURA

Yuji SUZUMURA 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).

  • Injection molding apparatus and injection molding method
    Patent number: 9669573
    Abstract: The injection molding apparatus of the present invention includes: a heating cylinder; a screw that is provided rotatably in an inner portion of the heating cylinder; a resin feed hopper that feeds a resin pellet; and a fiber feed device that is provided ahead of the resin feed hopper and feeds reinforcing fibers into the heating cylinder. The screw includes a first stage that is located on a rear side, and in which the resin pellet is melted, and a second stage that is located on a front side, and in which the melted resin pellet and the reinforcing fibers are mixed, and a lead of a second flight provided in the second stage is larger than a lead of a first flight provided in the first stage.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: June 6, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES PLASTIC TECHNOLOGY CO., LTD.
    Inventors: Toshihiko Kariya, Naoki Toda, Munehiro Nobuta, Kiyoshi Kinoshita, Takeshi Yamaguchi, Kosuke Ikeda, Yuji Suzumura, Hitoshi Onuma, Ryoji Okabe, Masanori Takahashi
  • INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD
    Publication number: 20160009010
    Abstract: The injection molding apparatus of the present invention includes: a heating cylinder; a screw that is provided rotatably in an inner portion of the heating cylinder; a resin feed hopper that feeds a resin pellet; and a fiber feed device that is provided ahead of the resin feed hopper and feeds reinforcing fibers into the heating cylinder. The screw includes a first stage that is located on a rear side, and in which the resin pellet is melted, and a second stage that is located on a front side, and in which the melted resin pellet and the reinforcing fibers are mixed, and a lead of a second flight provided in the second stage is larger than a lead of a first flight provided in the first stage.
    Type: Application
    Filed: November 6, 2013
    Publication date: January 14, 2016
    Inventors: Toshihiko KARIYA, Naoki TODA, Munehiro NOBUTA, Kiyoshi KINOSHITA, Takeshi YAMAGUCHI, Kosuke IKEDA, Yuji SUZUMURA, Hitoshi ONUMA, Ryoji OKABE, Masanori TAKAHASHI