Patents by Inventor Tetsuro Hanabusa

Tetsuro Hanabusa 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).

  • Acidic tinplating process and process for producing an iron-tin alloy on the surface of a steel sheet
    Patent number: 4388158
    Abstract: An acidic tinplating electrolyte containing at least one sulfate selected from the sulfates of alkaline metals, ammonium, aluminum, manganese or chromium and an ethoxylated .alpha.-naphthol sulfonic acid in a known stannous sulfate or stannous phenolsulfonate electrolyte.This acidic tinplating electrolyte is suitable as a preplating electrolyte for a tinplate in which excellent corrosion resistance is required and also as an electrolyte for the production of a steel sheet having an extremely thin tin layer or an extremely thin iron-tin alloy layer, as a very dense and uniform tin layer is formed on the steel sheet by using the electrolyte of this invention.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: June 14, 1983
    Assignee: Toyo Kohan Company, Ltd.
    Inventors: Tsuneo Inui, Hitoshi Kuroda, Tetsuro Hanabusa, Katsuhito Yazaki