Patents by Inventor Noriyasu Sakamoto

Noriyasu Sakamoto 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).

  • Benzoylurea derivative and its production and use
    Patent number: 4985460
    Abstract: The present invention relates to a novel benzoylurea derivative represented by the formula; ##STR1## its production; and insecticides, ovicides for insects and chemosterilants for insects containing it as an active ingredient.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: January 15, 1991
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Noriyasu Sakamoto, Tatsuya Mori, Tadashi Ohsumi, Toshihiko Yano, Izumi Fujimoto, Yoji Takada
  • Benzoylurea derivative and its production and use
    Patent number: 4904696
    Abstract: The present invention relates to a novel benzoylurea derivative represented by the formula, ##STR1## its production and insecticides containing it as an active ingredient.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: February 27, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Noriyasu Sakamoto, Tatsuya Mori, Tadashi Ohsumi, Toshihiko Yano, Izumi Fujimoto, Yoji Takada