Patents by Inventor Shigeki Naitoh

Shigeki Naitoh 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).

  • Polypyrrole thiophene
    Patent number: 4769430
    Abstract: Disclosed are a five-membered heterocyclic compound polymer substantially constituted of repeat units represented by the following general formula: ##STR1## and a process for preparing the five-membered heterocyclic compound polymer described above by electrolytic oxidation of a monomer represented by the following formula in the presence of a supporting electrolyte and a solvent: ##STR2## The five-membered heterocyclic compound polymer of the present invention is high in electric conductivity and stable in the air. This polymer is, therefore, utilized for electronic materials, display materials and coating materials for electric conductive substances.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: September 6, 1988
    Assignees: Research Dev. Corp., Sumitomo Chemical Company
    Inventor: Shigeki Naitoh