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. 14, 2007
Filed:
Sep. 29, 2003
Satoshi Abe, Moriguchi, JP;
Isao Fuwa, Osaka, JP;
Hirohiko Togeyama, Tondabayashi, JP;
Norio Yoshida, Nara, JP;
Masataka Takenami, Osaka, JP;
Shuushi Uenaga, Moriguchi, JP;
Satoshi Abe, Moriguchi, JP;
Isao Fuwa, Osaka, JP;
Hirohiko Togeyama, Tondabayashi, JP;
Norio Yoshida, Nara, JP;
Masataka Takenami, Osaka, JP;
Shuushi Uenaga, Moriguchi, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
To make a three-dimensional object, an optical beam is first irradiated on a predetermined portion of a powder layer to form a sintered layer, which is then covered with a new powder layer. The optical beam is again irradiated on a predetermined portion of the new powder layer to form another sintered layer that has been united with the underlying sintered layer. These processes are repeatedly carried out to form a plurality of sintered layers united together. When the second lower density layer is formed on the first higher density layer, a powder material layer for the lower density layer is formed at a predetermined thickness so as to have a thickness suitable for sintering condition and then the powder material layer is sintered to form the lower density layer.