Patents by Inventor Chitose Takakura

Chitose Takakura 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).

  • Process and apparatus for collecting waste plastics as separated
    Patent number: 5667151
    Abstract: A process for collecting waste plastics as separated comprises the steps of presorting out waste plastics from separated municipal refuse, crushing the waste plastics, reducing the volume of expanded polystyrene included in the waste plastics by heating the waste plastics at a predetermined temperature, finely dividing the waste plastics, washing the waste plastics to remove salt, etc. therefrom, separating the finely divided waste plastics in a liquid utilizing the difference between the plastics in specific gravity and collecting the separated fractions, and drying the useful one of the separated fractions.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: September 16, 1997
    Assignee: Hitachi Zosen Corporation
    Inventors: Yoshimasa Miura, Etsuo Ogino, Michio Ito, Chitose Takakura