Patents by Inventor Yasuhito Togawa

Yasuhito Togawa 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 the anodic oxidation of aluminum
    Patent number: 4356076
    Abstract: An apparatus for the anodic oxidation of aluminum permits the recovery of hydrogen generated from the cathode. The cathode is positioned within a tubular member provided with a multiplicity of small openings each having a size sufficient to allow passage of an electrolytic solution therethrough but to prevent passage of hydrogen bubbles therethrough. Thereby, the hydrogen is collected in the upper space above the surface of the electrolytic solution in the tubular member and is discharged therefrom through a conduit opening thereinto.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: October 26, 1982
    Assignee: Director-General of Agency of Industrial Science and Technology
    Inventors: Shizuo Matsushita, Yasuhito Togawa