Patents by Inventor Nobuhiro Shintani

Nobuhiro Shintani 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).

  • Aromatic-aliphatic polycarbonate copolymer
    Patent number: 4910283
    Abstract: An aromatic-aliphatic polycarbonate copolymer having a structural unit represented by the formula (1) ##STR1## and a structural unit represented by the formula (2) ##STR2## the molar function of the structural unit represented by the formula (1) being 70 to 10%, and the reduced viscosity as determined at 20.degree. C. in a 0.2 g/dl solution of the copolymer in methylene chloride as a solvent being 0.3 to 1.0 dl/g.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: March 20, 1990
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takao Kawaki, Sumio Iwao, Nobuhiro Shintani