Patents by Inventor Giichirou Okamura

Giichirou Okamura 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).

  • Sprue structure for low-pressure casting device and low-pressure casting device having said sprue
    Patent number: 10286444
    Abstract: A sprue for a low-pressure casting device includes a stalk connection part to be connected to a stalk, a molten metal reservoir and a cavity connection part to be connected to the cavity. The shape of the molten metal reservoir is such that the perimeter of the cross section perpendicular to the flow direction of molten metal gradually increases toward the cavity connection part while the area of the cross section remains constant.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: May 14, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuta Sugiyama, Carl Schubeler, Giichirou Okamura
  • Casting device and casting method
    Patent number: 10286449
    Abstract: A casting device includes: a split mold for forming a cavity, including a lower mold, a middle mold that slides in a horizontal direction on the lower mold and an upper mold; a split case for forming a chamber, including a lower case to which the lower mold is attached and an upper case to which the upper mold is attached; a chamber suction device that reduces a pressure at least in the chamber through a chamber pipe that is connected to the chamber and extends to an outside of the chamber; and a cavity suction device that reduces a pressure in the cavity through a cavity pipe that is connected to the cavity and extends to the outside of the chamber. The cavity and the chamber are formed when the middle mold is closed on the lower mold and the split case is closed.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: May 14, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Satoshi Minamiguchi, Giichirou Okamura, Shinichi Tsuchiya, Hiroyuki Sekiguchi, Yuuta Sugiyama, Carl Schubeler
  • Casting Device and Casting Method
    Publication number: 20180029114
    Abstract: A casting device includes: a split mold for forming a cavity, including a lower mold, a middle mold that slides in a horizontal direction on the lower mold and an upper mold; a split case for forming a chamber, including a lower case to which the lower mold is attached and an upper case to which the upper mold is attached; a chamber suction device that reduces a pressure at least in the chamber through a chamber pipe that is connected to the chamber and extends to an outside of the chamber; and a cavity suction device that reduces a pressure in the cavity through a cavity pipe that is connected to the cavity and extends to the outside of the chamber. The cavity and the chamber are formed when the middle mold is closed on the lower mold and the split case is closed.
    Type: Application
    Filed: February 24, 2015
    Publication date: February 1, 2018
    Inventors: Satoshi Minamiguchi, Giichirou Okamura, Shinichi Tsuchiya, Hiroyuki Sekiguchi, Yuuta Sugiyama, Carl Schubeler
  • Sprue Structure for Low-Pressure Casting Device and Low-Pressure Casting Device Having Said Sprue
    Publication number: 20180021847
    Abstract: A sprue for a low-pressure casting device includes a stalk connection part to be connected to a stalk, a molten metal reservoir and a cavity connection part to be connected to the cavity. The shape of the molten metal reservoir is such that the perimeter of the cross section perpendicular to the flow direction of molten metal gradually increases toward the cavity connection part while the area of the cross section remains constant.
    Type: Application
    Filed: February 19, 2015
    Publication date: January 25, 2018
    Inventors: Yuta Sugiyama, Carl Schubeler, Giichirou Okamura