Patents by Inventor Susumu Okunuki

Susumu Okunuki 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).

  • Diphenylamine derivatives
    Patent number: 4259105
    Abstract: Compounds of the general formula ##STR1## wherein X is trifluoromethyl or halogen,R.sub.1 is hydrogen, lower alkyl, lower alkenyl or benzyl,R.sub.2 is lower alkyl,R.sub.3 is hydrogen, alkyl or alkali metal,Y is oxygen or sulfur, andn is 0, 1 or 2;are useful as herbicides.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: March 31, 1981
    Assignee: Nippon Soda Company, Ltd.
    Inventors: Kuniyasu Maeda, Minoru Kaeriyama, Nobuo Matsui, Hisao Ishikawa, Shozo Yamada, Susumu Okunuki