Patents by Inventor Mitsuyuki Isogai

Mitsuyuki Isogai 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 producing composite extruded aluminum products from aluminum swarf
    Patent number: 4040162
    Abstract: Particulate aluminum or aluminum alloy swarf or waste is compressed under heat and pressure to form a billet. After subjecting the billet to a subsequent heat treatment at a higher temperature the billets are capable of being extruded by conventional extrusion apparatus. A conventional preheated billet of cast aluminum or aluminum alloy can be placed in the extrusion apparatus between the die plate and the preheated billet of aluminum or aluminum alloy swarf so that upon extrusion through the die orifice the compressed swarf billet and the conventional billet will comprise the core and coating portions of the product respectively.
    Type: Grant
    Filed: October 3, 1975
    Date of Patent: August 9, 1977
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Mitsuyuki Isogai, Kouiti Tikusa, Yosihiko Nakamura