Patents Assigned to Yaizu Meal Kyogyo Kumiai
  • Method of producing organic fertilizer by using fish as raw material
    Patent number: 5393318
    Abstract: A method of producing organic fertilizer by using fish as raw material. The method comprises the steps of boiling the fish to prepare a stock, removing solids and oil contents from the stock to obtain a stock solution, thereafter treating the stock solution in a decomposition tank for enzyme decomposition, and filtering an enzyme-decomposed stock solution to form a clarified liquid. The clarified liquid can be used as a fertilizer as is or further condensed or dried into organic fertilizer without unnecessary components.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: February 28, 1995
    Assignee: Yaizu Meal Kyogyo Kumiai
    Inventors: Mitsuo Iizuka, Shigeki Konishi