Patents by Inventor Chikao Mamiya

Chikao Mamiya 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).

  • Apparatus for production of sparingly water-soluble salt crystal grains
    Patent number: 5334359
    Abstract: An apparatus for producing sparingly water-soluble salt crystal grains, including a mixing vessel in which a cationic component solution and an anionic component solution are mixed to form a precipitation process solution in which sparingly water-soluble salt grains are produced, wherein the mixing vessel is connected to a reaction chamber through a one-way valve, and the precipitation process solution is injected into the crystal growth process solution through the one-way valve immediately after mixing while stirring the crystal growth process solution.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: August 2, 1994
    Assignee: Konica Corporation
    Inventors: Haruhiko Masutomi, Hirofumi Ohtani, Naoko Uchida, Chikao Mamiya