Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Using laser sintering of particulate material to build...
Reexamination Certificate
2008-01-29
2008-01-29
Tentoni, Leo B. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Using laser sintering of particulate material to build...
C264S161000, C264S163000
Reexamination Certificate
active
10671688
ABSTRACT:
The invention relates to a method of making a three-dimensional object, comprising the steps of:(a) forming a powder material layer (10) of inorganic material;(b) irradiating an optical beam (L) on a predetermined portion of the powder material layer (10) to form a first sintered layer (11) and integrate the first sintered layer (11) with a second sintered layer (11) just below the first sintered layer (11);(c) repeating the steps (a) and (b) to form a sintered block (B) united with a plurality of the first and second sintered layers (11), the sides of the sintered block (B) including a concave portion (g);(d) removing an excess portion (17) from a surface of the sintered block (B); and(e) repeating the steps (c) and (d) with respect to the sintered block (B) from which the excess portion (17) is removed, in order to make a target shape of a three-dimensional object united with a plurality of the sintered blocks (B).
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English Language Abstract of JP 2620353, (Mar. 11, 1997).
English Language Abstract of JP 2000-306546, (Oct. 5, 2000).
English Language Abstract JP 2001-152204, (Jun. 5, 2001).
English Language Abstract of DE 19953000, (May 17, 2001).
Abe Satoshi
Fuwa Isao
Takenami Masataka
Togeyama Hirohiko
Uenaga Shuushi
Greenblum & Bernstein P.L.C.
Matsushita Electric & Works Ltd.
Tentoni Leo B.
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