The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2007
Filed:
Feb. 19, 2004
Isao Fuwa, Osaka, JP;
Norio Yoshida, Nara, JP;
Shushi Uenaga, Moriguchi, JP;
Toshiharu Iwanaga, Hirakata, JP;
Yoshikazu Higashi, Moriyama, JP;
Hirohiko Togeyama, Tondabayashi, JP;
Satoshi Abe, Moriguchi, JP;
Masataka Takenami, Osaka, JP;
Takashi Shimizu, Kadoma, JP;
Isao Fuwa, Osaka, JP;
Norio Yoshida, Nara, JP;
Shushi Uenaga, Moriguchi, JP;
Toshiharu Iwanaga, Hirakata, JP;
Yoshikazu Higashi, Moriyama, JP;
Hirohiko Togeyama, Tondabayashi, JP;
Satoshi Abe, Moriguchi, JP;
Masataka Takenami, Osaka, JP;
Takashi Shimizu, Kadoma, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
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.