Patents by Inventor Sakae Inayoshi

Sakae Inayoshi 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).

  • Surface treatment method for aluminum alloy and surface treatment method for magnesium alloy
    Patent number: 8617321
    Abstract: The present invention provides a surface treatment method for an aluminum alloy and a surface treatment method for a magnesium alloy, which enable providing the surface of an aluminum alloy containing magnesium or the surface of a magnesium alloy with sufficient corrosion resistance to corrosive gases, while preventing the surface from scattering magnesium therefrom even when used in a vacuum at a temperature of not less than 300° C. In this method, a carbon fluoride compound is applied over the surface of the aluminum alloy containing magnesium or the surface of the magnesium alloy, followed by heating in an oxygen atmosphere, thereby forming a fluoride passivation film.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: December 31, 2013
    Assignees: Ulvac, Inc., Ulvac Techno, Ltd.
    Inventors: Shunji Misawa, Sakae Inayoshi, Hiroshi Sato
  • SURFACE TREATMENT METHOD FOR ALUMINUM ALLOY AND SURFACE TREATMENT METHOD FOR MAGNESIUM ALLOY
    Publication number: 20100096044
    Abstract: The present invention provides a surface treatment method for an aluminum alloy and a surface treatment method for a magnesium alloy, which enable providing the surface of an aluminum alloy containing magnesium or the surface of a magnesium alloy with sufficient corrosion resistance to corrosive gases, while preventing the surface from scattering magnesium therefrom even when used in a vacuum at a temperature of not less than 300° C. In this method, a carbon fluoride compound is applied over the surface of the aluminum alloy containing magnesium or the surface of the magnesium alloy, followed by heating in an oxygen atmosphere, thereby forming a fluoride passivation film.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 22, 2010
    Applicants: ULVAC, INC., ULVAC TECHNO, LTD.
    Inventors: Shunji Misawa, Sakae Inayoshi, Hiroshi Sato