Patents by Inventor Shouichi Koten

Shouichi Koten 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).

  • Compression molding method
    Patent number: 4863651
    Abstract: A compression molding method includes detecting actual internal die pressure of molding material filled into a mold cavity, and regulating the compressive force exerted on the molding material in the mold cavity so as to conform the detected internal die pressure with a predetermined reference internal die pressure. The compressive force exerted on the molding material is controlled by a mold clamping mechanism or an extruder in accordance with the prescribed reference internal die pressure given in the form of a waveform, thereby to keep the actual internal die pressure of the molding material in the optimum condition. Consequently, molded products of high quality can be produced continuously.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: September 5, 1989
    Assignee: Techonoplas, Inc.
    Inventor: Shouichi Koten