Patents by Inventor Tetsuya Hozumi

Tetsuya Hozumi 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).

  • Drive apparatus for driving movable member in plastic molding die apparatus
    Patent number: 5417560
    Abstract: A drive apparatus for driving a movable member of a plastic molding die apparatus is provided which drives and controls a movable shaft for holding a gas injection nozzle by using a plurality of cylinders so that the gas injection nozzle of the die apparatus for use in a gas injection molding method can easily be changed. Resin is supplied from a position through a second die into a cavity formed between a first die and the second die, the drive apparatus disposed adjacent to the first die is used to drive the movable shaft for holding the nozzle of a gas supply means to supply gas into the resin in the cavity so that a hollow product is molded. The nozzle of the gas supply means is disposed at the leading portion of the hollow movable shaft.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: May 23, 1995
    Assignees: Mitsubishi Gas Chemical Company, Inc., Plastron Corporation
    Inventors: Akimasa Kaneishi, Tetsuya Hozumi