Patents by Inventor Shinji Kiboshi

Shinji Kiboshi 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).

  • Gas-feeding nozzle and apparatus and method employing such nozzle
    Patent number: 5626815
    Abstract: A gas-feeding nozzle is to be used with a mold attached to an injection molding machine and for introducing a pressurized gas into molten resin injected in a cavity of the mold to produce an injection molded article having a hollow structure. A top forward portion of the gas-feeding nozzle is formed of a gas ejection portion having an inner side wall, along a direction of flow of the pressurized gas, having at least one concavo-convex portion.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: May 6, 1997
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akimasa Kaneishi, Shinji Kiboshi
  • Acetal resin composition
    Patent number: 4578422
    Abstract: This invention relates to a glass-reinforced acetal resin composition having excellent heat stability and mechanical strength. The resin composition contains both a polycyanate compound and an amino-substituted triazine and/or a cyanoguanidine compound as coupling agents. The resin composition of the invention is useful, for example, as a material for automotive parts and machine parts because of its higher mechanical strength and heat stability, especially the former, than conventional known glass-reinforced acetal resins.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: March 25, 1986
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Masanori Sakurai, Junichi Miyawaki, Toshikaju Umemura, Toshikatsu Kawata, Shinji Kiboshi