Patents by Inventor Fusao Wakabayashi

Fusao Wakabayashi 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 of extruding aluminum alloy and dies therefor
    Patent number: 5321967
    Abstract: A method for extruding molded members with section forms thereof that are partially varied along the extruded axis is provided. The method comprises the steps of extruding members in sectional form by extruding a material from a die hole for molding a sectional form of a maximum area assumed, and extruding members gradually forming different sectional forms by extruding a material while gradually changing the die hole sectional area.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: June 21, 1994
    Assignee: Isuzu Motors Limited
    Inventor: Fusao Wakabayashi