Patents by Inventor Seiji Kuge

Seiji Kuge 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 of metal member, and metal goods
    Patent number: 7381281
    Abstract: A method of surface-treating a metal member involves heating, or heating under pressure, the metal member in an aqueous alkaline solution having a pH of 9 or more and containing a manganese compound and a chelating agent dissolved in water, whereby a mold release agent or dirt is removed from the metal member without any pre-cleaning process. The surface treatment forms on the metal member a surface treatment layer providing excellent corrosion resistance. Paint, which adheres well to the surface treatment layer, can provide additional corrosion protection.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: June 3, 2008
    Assignee: Chiyoda Chemical Co., Ltd
    Inventors: Akio Maeda, Seiji Kuge
  • Surface treatment method of metal member, and metal goods
    Publication number: 20030226621
    Abstract: A method of surface-treating a metal member involves heating, or heating under pressure, the metal member in an aqueous alkaline solution having a pH of 9 or more and containing a manganese compound and a chelating agent dissolved in water, whereby a mold release agent or dirt is removed from the metal member without any pre-cleaning process. The surface treatment forms on the metal member a surface treatment layer providing excellent corrosion resistance. Paint, which adheres well to the surface treatment layer, can provide additional corrosion protection.
    Type: Application
    Filed: November 15, 2002
    Publication date: December 11, 2003
    Applicant: Chiyoda Chemical Co., Ltd.
    Inventors: Akio Maeda, Seiji Kuge