Patents by Inventor Michio Kiyoto

Michio Kiyoto 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).

  • Mixed phosphatic fertilizer and process for producing the same
    Patent number: 4588431
    Abstract: In producing a mixed phosphatic fertilizer, humic acid is mixed with fused phosphate to cause the humic acid to react on alkaline ingredients of the fused phosphate for turning these alkaline ingredients into chelate compounds, so that water-soluble phosphoric acid contents of succeedingly added phosphatic fertilizers such as calcium superphosphate and calcium triple-superphosphate are not reduced or insolubilized by being reacted with such alkaline ingredients. Thus, unlike the prior art, a stabilized predetermined level of water-soluble phosphoric acid contents can be secured in the resultant mixed phosphatic fertilizer along with a predetermined level of citric acid-soluble phosphoric acid contents.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: May 13, 1986
    Assignee: Japan Metals and Chemicals Co., Ltd.
    Inventors: Teruo Nakamura, Michio Kiyoto, Kazuo Akashi, Isao Hasegawa
  • Mixed phosphatic fertilizer and process for producing the same
    Patent number: 4440560
    Abstract: In producing a mixed phosphatic fertilizer, humic acid is mixed with fused phosphate to cause the humic acid to react on alkaline ingredients of the fused phosphate for turning these alkaline ingredients into chelate compounds, so that water-soluble phosphoric acid contents of succeedingly added phosphatic fertilizers such as calcium superphosphate and calcium triple-superphosphate are not reduced or insolubilized by being reacted with such alkaline ingredients. Thus, unlike the prior art, a stabilized predetermined level of water-soluble phosphoric acid contents can be secured in the resultant mixed phosphatic fertilizer along with a predetermined level of citric acid-soluble phosphoric acid contents.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: April 3, 1984
    Assignee: Japan Metals and Chemicals Co., Ltd.
    Inventors: Teruo Nakamura, Michio Kiyoto, Kazuo Akashi, Isao Hasegawa