Patents Assigned to Sankyo Yuki Kabushiki Kaisha
  • Method for improvement of soil
    Patent number: 4758318
    Abstract: The molds infesting a given soil are extirpated by the flow of a pulsating direct current of not less than 50 mA to prevent a farm product from diseases causable by the aforementioned molds.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: July 19, 1988
    Assignee: Sankyo Yuki Kabushiki Kaisha
    Inventor: Tadayuki Yoshida
  • Method of treatment for separation of oil from oil-containing slurry waste
    Patent number: 4555345
    Abstract: An oil-containing slurry waste containing a soap component in the oil component thereof is foamed by stirring so that the oil component adheres to the froth produced by the foaming and rises to the surface of the slurry waste by virtue of buoyancy. Consequently, the oil component in the slurry waste is separated from the slurry waste in a highly concentrated form as entrained by the froth. The oil thus separated is suitable for reuse. The slurry waste having a low oil content can be easily treated for disposal.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: November 26, 1985
    Assignees: Sankyo Yuki Kabushiki Kaisha, Arai Shoji Kabushiki Kaisha
    Inventor: Tadayuki Yoshida