Patents by Inventor Tadahiro Yoshino

Tadahiro Yoshino 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 of producing naphthalene dicarboxylic acid
    Patent number: 5274185
    Abstract: A high purity naphthalene dicarboxylic acid (NDCA) is easily and rapidly produced by reacting a dialkylester of NDCA within a temperature range of 70.degree.-350.degree. C.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: December 28, 1993
    Assignee: Kawasaki Steel Corporation
    Inventors: Tadahiro Yoshino, Tadao Wakui