Patents by Inventor Naoki Miyagawa

Naoki Miyagawa 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).

  • Ferrous powder material and a manufacture method thereof, and a briquette for use as steelmaking material
    Publication number: 20100031582
    Abstract: A ferrous powder material which may be compression molded by a compression molding press and may be recycled as a valuable resource is provided. The ferrous powder material contains grinding chips of a ferrous metal. The ferrous powder material is obtained by stirringly mixing a sludge mass with calcined lime and water, the sludge mass comprising the grinding chips of the ferrous metal and a grinding fluid containing oil and water.
    Type: Application
    Filed: December 21, 2007
    Publication date: February 11, 2010
    Inventors: Mitsuma Matsuda, Soichi Nouchi, Naoki Miyagawa
  • Pressurizing forming process and pressurized-and-formed member
    Patent number: 7459032
    Abstract: A pressurizing forming process includes the steps of applying a higher fatty acid-based lubricant on a surface of a metallic workpiece and/or a forming surface of a forming tool, and forming, wherein a lubricating film including metallic soap is formed on a pressurized-and-contacted interface, at which the surface of the metallic workpiece and the surface of the forming tool are pressed against and are brought into contact with each other, in forming the metallic workpiece by pressurizing with the forming tool. The metallic workpiece and/or the forming tool can be heated prior to or in the forming step.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: December 2, 2008
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, Tokyo Sintered Metals Corporation
    Inventors: Mikio Kondo, Akira Sekiguchi, Naoki Miyagawa, Shigehide Takemoto, Hiroshi Okajima
  • Pressurizing forming process and presurized-and-formed member
    Publication number: 20030003009
    Abstract: A pressurizing forming process includes the steps of applying a higher fatty acid-based lubricant on a surface of a metallic workpiece and/or a forming surface of a forming tool, and forming, wherein a lubricating film including metallic soap is formed on a pressurized-and-contacted interface, at which the surface of the metallic workpiece and the surface of the forming tool are pressed against and are brought into contact with each other, in forming the metallic workpiece by pressurizing with the forming tool. The metallic workpiece and/or the forming tool can be heated prior to or in the forming step.
    Type: Application
    Filed: June 12, 2002
    Publication date: January 2, 2003
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Mikio Kondo, Akira Sekiguchi, Naoki Miyagawa, Shigehide Takemoto, Hiroshi Okajima