Patents by Inventor Otaharu Ishizaka

Otaharu Ishizaka 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).

  • Method for hydrogen generation
    Patent number: 4005185
    Abstract: A method for generating hydrogen. Metallic zinc or metallic zinc coated with a film of a dissimilar metal, a dissimiliar metal oxide, or a dissimiliar metal oxide complex is contacted through the medium of an aqueous solution of (i) neutral ammonium carbonate, (ii) neutral ammonium carbonate and an ammonium salt of an inorganic acid, (iii) an ammonium salt of an inorganic acid and ammonia water, or (iv) neutral ammonium carbonate, an ammonium salt of an inorganic acid and ammonia water with an ammonium complex salt of a metal other than zinc.
    Type: Grant
    Filed: April 10, 1974
    Date of Patent: January 25, 1977
    Inventor: Otaharu Ishizaka