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:
Jul. 29, 2008
Filed:
Aug. 14, 2002
Hitoshi Ohmori, Wako, JP;
Masahiro Anzai, Wako, JP;
Kiwamu Kase, Wako, JP;
Hideo Tashiro, Wako, JP;
Akitake Makinouchi, Wako, JP;
Hitoshi Ohmori, Wako, JP;
Masahiro Anzai, Wako, JP;
Kiwamu Kase, Wako, JP;
Hideo Tashiro, Wako, JP;
Akitake Makinouchi, Wako, JP;
Riken, Saitama, JP;
Abstract
V-CAD data is prepared by dividing external dataconsisting of boundary data of an object into rectangular parallelepiped cellshaving boundary planes orthogonal to each other in accordance with octree division and separating the respective divided cells into internal cellspositioned on the inner side of the object and boundary cellsincluding a boundary face, and a modeling unit quantity of a prototyping materialis changed in accordance with sizes of the internal celland the boundary cellof a modeling portion. The prototyping materialis a resin, lumber powder, a low-fusing-point metal, metal powder, ceramics powder or a mixture of a binder and one of these materials, and its modeling unit quantity is set in such a manner that the modeling unit quantity is smaller than a capacity of a corresponding cell and does not protrude from the boundary plane of the cell. As a result, by using the V-CAD data, a program for rapid prototyping can be simplified, and a model production time can be greatly reduced.