Patents by Inventor Eiyashi Itooka

Eiyashi Itooka 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).

  • N-substituted aminonitrile derivatives
    Patent number: 3966789
    Abstract: N-substituted aminonitrile derivatives of the formula (I) ##EQU1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as hereinafter defined, useful as fungicides, method for their preparation, and fungicidal compositions containing the N-substituted aminonitrile derivatives of the formula (I).
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: June 29, 1976
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadashi Oishi, Nobuyuki Kameda, Toshiro Kato, Akira Fujinami, Toshiaki Ozaki, Eiyashi Itooka