Patents by Inventor Sigel Fujimura

Sigel Fujimura 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).

  • Fertilizer composition
    Patent number: 4045204
    Abstract: A fertilizer composition manufactured by mixing a fertilizer or a fertilizing substance with pullulan or a derivative thereof, used as binder, and solidifying the mixture. The composition is easily shapable. Another advantage of pullulan over conventional binders is that the pullulan or its derivative which remains in the soil after application of the composition and dissolution of the fertilizer component is degraded by the action of water and soil microorganisms in the soil and, hence, will not hinder the growth of plants.
    Type: Grant
    Filed: February 24, 1976
    Date of Patent: August 30, 1977
    Assignees: Sumitomo Chemical Company, Limited, Hayashibara Biochemical Laboratories, Inc.
    Inventors: Hiroomi Matsunaga, Sigel Fujimura, Hisao Namioka, Kozo Tsuji, Masashi Watanabe