Patents by Inventor Toshiharu Iwanaga

Toshiharu Iwanaga 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).

  • Metal powder composition for use in selective laser sintering
    Patent number: 7258720
    Abstract: A three-dimensional object of a desired shape is made by irradiating an optical beam on a metal powder layer to form a sintered layer and by laminating such sintered layer one above another. A metal powder composition for use in making such a three-dimensional object includes an iron-based powder material, a nickel and/or nickel alloy powder material, a copper and/or copper alloy powder material, and a graphite powder material. The graphite powder material acts to enhance the wettability during melting and to reduce microcracks during solidification.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: August 21, 2007
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Isao Fuwa, Norio Yoshida, Shushi Uenaga, Toshiharu Iwanaga, Yoshikazu Higashi, Hirohiko Togeyama, Satoshi Abe, Masataka Takenami, Takashi Shimizu
  • Metal powder composition for use in selective laser sintering
    Publication number: 20040182201
    Abstract: A three-dimensional object of a desired shape is made by irradiating an optical beam on a metal powder layer to form a sintered layer and by laminating such sintered layer one above another. A metal powder composition for use in making such a three-dimensional object includes an iron-based powder material, a nickel and/or nickel alloy powder material, a copper and/or copper alloy powder material, and a graphite powder material. The graphite powder material acts to enhance the wettability during melting and to reduce microcracks during solidification.
    Type: Application
    Filed: February 19, 2004
    Publication date: September 23, 2004
    Applicant: Matsushita Electric Works, Ltd.,
    Inventors: Isao Fuwa, Norio Yoshida, Shushi Uenaga, Toshiharu Iwanaga, Yoshikazu Higashi, Hirohiko Togeyama, Satoshi Abe, Masataka Takenami, Takashi Shimizu