Patents by Inventor Masahiko Ishizaki, deceased

Masahiko Ishizaki, deceased 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).

  • Cyanoketone derivative and herbicide containing it as an active component
    Patent number: 5674811
    Abstract: A cyanoketone derivatives of the following formula (1) ##STR1## which are characterized by excellent herbicidal activity and effectiveness against a variety of broad leafed weeds, including barnyard grass, green foxtail, velvet leaf, livid amaranth and hairy beggar ticks.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: October 7, 1997
    Assignee: Tokuyama Corporation
    Inventors: Toshio Kitajima, Tadashi Kobutani, Shozo Kato, Masao Yamaguchi, Masahiko Ishizaki, deceased