Patents by Inventor Toru Masaki

Toru Masaki 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).

  • Gas distribution plate for use with fluidized-bed gas-phase polymerizer
    Patent number: 5599513
    Abstract: A gas distribution plate for use with a fluidized-bed gas-phase polymerizer comprising a flat plate and a plurality of cylindrical or frustoconical pieces each having an oblique hole or a spiral groove cut in its surface. Each piece fits into a hole in the flat plate.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: February 4, 1997
    Assignee: Showa Denko K.K.
    Inventors: Toru Masaki, Setuo Kawano, Yuzo Saitoh, Hirozo Ijiri