Patents by Inventor Keigo Satake

Keigo Satake 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).

  • Field and garden agricultural fungicide
    Patent number: 4041170
    Abstract: 2-Carbamoyl-3-N-(3',5'-dichlorophenyl)-carbamoyl-5,6-dihydro-p-dithiin-1-ox ide as effective substance for the control of agricultural plant diseases.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: August 9, 1977
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takaaki Ohtsuka, Keigo Satake, Shiro Yamazaki, Nobuo Hatakeyama, Takeo Watanabe
  • Fungicides
    Patent number: 4007279
    Abstract: A fungicidal compound having a general structure corresponding to a member selected from the group of 2,3-dicyano-5,6-dihydro-p-dithiin and its 5-alkyl derivatives, as expressed by the following general formula: ##STR1## wherein R stands for H or an alkyl radical of C.sub.1 - C.sub.6.
    Type: Grant
    Filed: January 28, 1975
    Date of Patent: February 8, 1977
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takaaki Ohtsuka, Keigo Satake, Shiro Yamazaki, Takeo Watanabe