Patents by Inventor Katsushige Kusaka

Katsushige Kusaka 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).

  • Molding apparatus for producing synthetic resin molded product
    Patent number: 5612067
    Abstract: A molding apparatus for producing a synthetic resin molded product including a forming mold with a molding cavity, a gate communicating with the cavity, and an overflow chamber communicating with the cavity through a flow-out passage, a gas blow-in mechanism for blowing gas into molten synthetic resin which has been injected into the cavity through the gate so as to form a void in the molten synthetic resin in the cavity to mold a hollow product and a flow-out passage opening and closing mechanism for closing the flow-out passage until the molten resin fills the molding cavity and opening the flow-out passage when the gas blow-in mechanism is in operation.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: March 18, 1997
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tsuneo Kurihara, Katsushige Kusaka, Teruo Ichikawa, Hiromi Tanaka, Toshiyuki Higashi