Patents by Inventor Sainori Tagawa

Sainori Tagawa 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).

  • Method of controlling injection moulding machine
    Patent number: 5246645
    Abstract: A method of controlling an injection molding machine in which change in the forward movement velocity of an injecting screw or change in the filling pressure is detected at the time of performing switching from the filling process to the packing process, commencement of the packing control is hastened if the change in the velocity or the pressure is reversed, while the commencement of the packing process is delayed if a determined level is not realized within a predetermined time from the commencement of the packing control. When the injection molding work is performed, switching from the filling process to the packing process can be easily performed at a proper time and therefore high quality products can be easily mass-produced.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: September 21, 1993
    Assignee: Ube Industries, Ltd.
    Inventors: Sainori Tagawa, Shinichi Tomita