Patents by Inventor Fumiaki Mieno

Fumiaki Mieno 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 producing an alkali metal salt of a mineral acid, and a process
    Patent number: 4427637
    Abstract: An apparatus is disclosed for producing an alkali metal salt of a mineral acid, characterized by the provision of a specific agitating means, said agitating means having a pair of shafts adapted to contra-rotate and a plurality of columnar agitating elements securely attached to each of said pair of shafts and being so constructed that it forcibly causes the migration of the reaction mixture at least in the region where the liquid phase of the reaction mixture is substantially continuous and forcibly causes the kneading of the reaction mixture at least in the region where the solid phase of the reaction mixture is substantially continuous.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: January 24, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Hidemaro Iwashita, Fumiaki Mieno, Yoshinori Kiura, Kenichi Hayashi