Patents by Inventor Kihachirou Kodama

Kihachirou Kodama 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).

  • Coated granular fertilizer composition and its production
    Patent number: 5133797
    Abstract: A coated granular fertilizer composition comprising fertilizer granules, of which each particle being coated with a copolymer comprising units of vinyl chloride and units of ethylene in a weight proportion of about 50:50 to 90:10 with units of at least one functional monomer chosen from acrylamide, methacrylamide, N-methylolacrylamide, N-butoxymethylacrylamide, acrylic acid, glycidyl methacrylate and hydroxyethyl acrylate in an amount of not more than about 10% by weight based on the total amount of vinyl chloride units and ethylene units in an amount of about 5 to 40% by weight based on the weight of the granule.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: July 28, 1992
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Akira Mahara, Kihachirou Kodama, Tadami Shimooka