Patents by Inventor Kukuo Ishizumi

Kukuo Ishizumi 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).

  • Imide derivatives, and their use in pharmaceuticals
    Patent number: 4948799
    Abstract: An imide derivative of the formula: ##STR1## or a pharmaceutically acceptable salt, which is useful as an antipsychotic drug.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: August 14, 1990
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Fujio Antoku, Mayumi Yoshigi, Ikutaro Saji, Atsuyuki Kojima, Kukuo Ishizumi
  • Imide derivatives and their use in the treatment psychosis
    Patent number: 4812461
    Abstract: An imide derivative of the formula: ##STR1## or a pharmaceutically acceptable salt, which is useful as an antipsychotic drug.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: March 14, 1989
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Fujio Antoku, Mayumi Yoshigi, Ikutaro Saji, Atsuyuki Kojima, Kukuo Ishizumi