Patents by Inventor Kikuo Okazaki

Kikuo Okazaki 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).

  • Polyester decomposition process and polyester monomerization system
    Patent number: 6214893
    Abstract: The present invention provides a process for the decomposition of a polyester which can accelerate the reaction for decomposing the polyester to form monomers serving as raw materials or raw material derivatives. This process for the decomposition of a polyester is characterized in that the polyester is decomposed by solvolysis with methanol to form a dimethyl carboxylate and a dihydroxy compound, and these decomposition products are added to and mixed with a melt of the polyester for the purpose of decomposing the polyester by solvolysis.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: April 10, 2001
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Nobuo Ishihara, Wataru Kawamura, Masahiro Kishi, Kikuo Okazaki