Patents by Inventor Eiyoshi Itooka

Eiyoshi 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-(4-Benzyloxyphenyl)-N-methyl-N-methoxyurea
    Patent number: 4144049
    Abstract: N-(4-Benzyloxyphenyl)-N'-methyl-N'-methoxyurea of the formula: ##STR1## which shows a pronounced herbicidal activity against weeds in the cultivation of soybean without any material toxicity to mammals and soybean plants.
    Type: Grant
    Filed: March 2, 1977
    Date of Patent: March 13, 1979
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ryo Yoshida, Seizo Sumida, Eiyoshi Itooka, Hiroshi Noguchi, Katsuzo Kamoshita