Patents by Inventor Shigehiro Imai

Shigehiro Imai 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).

  • Apparatus for removing volatile matters contained in polymers
    Patent number: 4744957
    Abstract: Disclosed is apparatus for treating polymers containing volatile matters and removing the volatile matters from the polymers, which comprises a polymer discharge device provided with heating means and adapted to discharge a polymer charged therein in the form of a strand or film and so forth, which device is mounted inside a decompression vessel or on a wall of the vessel.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: May 17, 1988
    Assignees: Mitsui Engineering & Shipbuilding Co., Ltd., Idemitsu Petrochemical Co., Ltd.
    Inventors: Shigehiro Imai, Hirokuni Mihara, Junichi Yoshida, Masao Omori, Hiroshi Kurokawa