Patents by Inventor Hideji Shiota

Hideji Shiota 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 for producing polycarbonate powder from a polycarbonate solution
    Patent number: 4074864
    Abstract: A method of producing polycarbonate powder comprises continuously mixing and kneading a polycarbonate solution while heating same, the kneading being accomplished by producing a limited "to and fro" movement of the polycarbonate solution with the aid of a set of spiral blades mounted on rotating shafts in an elongated barrel.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: February 21, 1978
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yoshihiro Narita, Shigeaki Mochizuki, Shigeru Kakimoto, Norio Komori, Kiyoshi Watanabe, Hideji Shiota