Patents by Inventor Takahiro Tsunemi

Takahiro Tsunemi 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).

  • Gravity casting method
    Patent number: 8141616
    Abstract: A gravity casting method includes: situating a molding die having a feeder portion in communication with a cavity above the cavity to a horizontal state and pouring a molten metal from a runner in communication with the cavity; putting the molding die to a state inclined at a predetermined angle during pouring of the molten metal from a stage where the molten metal is filled in the runner and prevailing the molten metal while pouring to the inside of the cavity and the feeder portion; and returning the molding die to the horizontal state after the molten metal has been poured completely, and solidifying the molten metal.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 27, 2012
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Katsumi Iwasa, Yuji Tai, Takahiro Tsunemi, Hiroki Takeuchi
  • GRAVITY CASTING METHOD
    Publication number: 20110114280
    Abstract: A gravity casting method includes: situating a molding die having a feeder portion in communication with a cavity above the cavity to a horizontal state and pouring a molten metal from a runner in communication with the cavity; putting the molding die to a state inclined at a predetermined angle during pouring of the molten metal from a stage where the molten metal is filled in the runner and prevailing the molten metal while pouring to the inside of the cavity and the feeder portion; and returning the molding die to the horizontal state after the molten metal has been poured completely, and solidifying the molten metal.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 19, 2011
    Applicant: NISSIN KOGYO CO., LTD.
    Inventors: Katsumi IWASA, Yuji TAI, Takahiro TSUNEMI, Hiroki TAKEUCHI