Patents by Inventor Masanari Ohshima

Masanari Ohshima 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).

  • Patent number: 4019890
    Abstract: Granular slow-releasing fertilizers completely coated with water-resisting resin are produced in such a manner that the coated granules do not stick together, through one step operation by spraying a solution of the resin which has the property capable of maintaining the solution state while it is hot but turning into jelly-like gel when it is cooled, on granules of fertilizer and drying the said granules with a high speed drying hot air on the spot upon being sprayed with the solution of the resin.
    Type: Grant
    Filed: December 3, 1974
    Date of Patent: April 26, 1977
    Assignee: Chissoasahi Fertilizer Co., Ltd.
    Inventors: Toshio Fujita, Chigo Takahashi, Masanari Ohshima, Tsunezo Ushioda, Hirozo Shimizu