Patents by Inventor Michiyasu Fukui

Michiyasu Fukui 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).

  • Mold apparatus and injection molding method for producing hollow-structured article by injection molding
    Patent number: 5656234
    Abstract: An injection-molding method using an injection molding machine having a mold apparatus comprising(A) a fixed mold member,(B) a movable mold member movable in the mold opening and closing directions,(C) an intermediate mold member which is provided between the fixed mold member and the movable mold member and is slidable in the mold opening and closing directions between the fixed mold member and the movable mold member, and(D) at least one intermediate mold member sliding means for sliding the intermediate mold member in the mold opening and closing directions,the method including the steps ofinjecting a molten resin into a cavity formed of cavity wall surfaces of the fixed mold member, the intermediate mold member and the movable mold member, andincreasing the distance of the cavity by moving the movable mold member in the mold opening direction with keeping the intermediate mold member in intimate contact with the fixed mold member or the movable mold member by the intermediate mold member sliding means, an
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: August 12, 1997
    Assignees: Mitsubishi Gas Chemical Company, Inc., Miyagawa Kasei Industry Co., Ltd.
    Inventors: Akimasa Kaneishi, Sinji Kiboshi, Isamu Mio, Michiyasu Fukui