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    11.
    发明专利
    未知

    公开(公告)号：DE60106465D1

    公开(公告)日：2004-11-18

    申请号：DE60106465

    申请日：2001-07-26

    Applicant: NTT DATA CORP ,  RIKEN WAKO

    Inventor： WATANABE KATSUYUKI ,  NAKAJIMA KOJI ,  YAMAZAWA KENJI ,  ANZAI MASAHIRO ,  KASE KIWAMU

    IPC: B29C67/00 ,  C08K7/20 ,  C08L101/00

    Abstract: In coloration of a shaped article composed of a curable resin, the addition operation can be reliably conducted and a reliable coloration effect can be obtained in both the single-color addition and in the multicolor addition. A liquid-phase, non-colored photo-curable resin is cured by irradiation with laser light and a lowermost layer 5n is formed. A liquid-phase, photo-curable resin is applied on the upper surface thereof and a colored layer 5n-1 comprising a cured non-colored region and a liquid-phase pool region is formed. A color ink is drop-wise added to the liquid-phase pool region. The pool region is irradiated with laser light and cured to the same hardness as that of the non-colored region. A block-like coating film having the prescribed thickness if formed from the surface coating film produced by the color ink covering the pool region. As a result, the formation of the next layer (colored layer 5n-2) on the upper surface of colored layer 5n-1 can be conducted without obstacles. Colored layer 5n-2 through colored layer 53 are formed by repeating this process, a colored layer 52 is formed on the upper surface of colored layer 53, and then the uppermost layer 51 is formed on the colored layer 52.

    BOUNDARY DATA INSIDE/OUTSIDE JUDGMENT METHOD AND PROGRAM THEREOF
    13.
    发明公开
    BOUNDARY DATA INSIDE/OUTSIDE JUDGMENT METHOD AND PROGRAM THEREOF 审中-公开
    INNEN / AUSSEN-BEURTEILUNGSVERFAHRENFÜRGRENZDATEN UND PROGRAMMDAFÜR

    公开(公告)号：EP1507220A4

    公开(公告)日：2007-04-04

    申请号：EP03723379

    申请日：2003-05-15

    Applicant: RIKEN

    Inventor： KASE KIWAMU

    IPC: G06F17/50 ,  G06T7/60 ,  G06T17/20

    CPC classification number: G06T17/20 ,  G06T7/11 ,  G06T7/162 ,  G06T15/08 ,  G06T2207/20012 ,  G06T2207/20016 ,  G06T2207/20021 ,  G06T2207/30164

    Abstract: A boundary data inside/outside judgment method includes an external data input step (A) of inputting external data (12) consisting of boundary data of an object (1), a cell division step (B) of dividing the external data into rectangular solid cells (13) in which the boundary planes intersect orthogonally, a cell classification step (C) of classifying the divided cells into a boundary cell (13a) including boundary data and a non-boundary cell (13b) not including boundary data, and a spatial division step (D) of dividing the non-boundary cell (13b) into a plurality of spaces partitioned by the boundary ell (13a).

    Abstract translation: 用于确定边界的内部和外部的方法包括输入由对象的边界数据构成的外部数据的外部数据输入步骤，将外部数据划分成具有彼此正交的边界平面的长方体的单元的单元划分步骤，单元分类 将单元分类为包括边界数据的边界单元和不包括边界数据的非边界单元的步骤;以及空间分类步骤，将非边界单元分类为由 边界细胞

    METHOD FOR EVALUATING ERROR IN SHAPE OF FREE CURVED SURFACE
    14.
    发明公开
    METHOD FOR EVALUATING ERROR IN SHAPE OF FREE CURVED SURFACE 有权
    一种用于确定不同的自由曲面的FORM

    公开(公告)号：EP1030162A4

    公开(公告)日：2002-04-10

    申请号：EP99937077

    申请日：1999-08-17

    Applicant: RIKEN

    Inventor： KASE KIWAMU

    IPC: G01D1/16 ,  B21D5/01 ,  B29C45/76 ,  G01B21/20 ,  G06T17/30 ,  G01B11/24 ,  G06T17/20

    CPC classification number: G01B21/20 ,  G06T17/30

    Abstract: A method comprises A: dividing an original curved surface (S) into at most six curved-surface units by combinations of signs (+, 0, -) of the principal curvature (k1, k2) at points on the original curved surface (S), B: dividing a changed curved surface (S') into curved-surface units having the same boundaries in such a way as to correspond to the original curved surface (S), C: finding average normal vectors of the curved-surface units of the original and changed curved surfaces, D: finding the "warp" components and "twist" components of all the combinations of pairs of different curved-surface units of the original and changed curved surfaces, and E: finding the differences between the "warp" and "twist" components of the combinations of the original curved surface and those of the combinations of the changed curved surface. Thus the overall shapes and errors of the original and changed curved surfaces after forming such as CAD data are readily and objectively compared, and the overall shape of a free curved surface is evaluated without being influenced by local "wrinkles" and "cavities". The numerical calculation of this method is easy, and the method is hardly influenced by numerical error and measurement error and applicable even to parametric curved surface and point group.

    RAPID PROTOTYPING METHOD AND DEVICE USING V-CAD DATA
    16.
    发明公开
    RAPID PROTOTYPING METHOD AND DEVICE USING V-CAD DATA 审中-公开
    方法和原型的快速生产设备中，利用V-CAD数据

    公开(公告)号：EP1442869A4

    公开(公告)日：2008-12-24

    申请号：EP02760630

    申请日：2002-08-14

    Applicant: RIKEN

    Inventor： OHMORI HITOSHI ,  ANZAI MASAHIRO ,  KASE KIWAMU ,  TASHIRO HIDEO ,  MAKINOUCHI AKITAKE

    IPC: B29C67/00 ,  G06F17/50

    CPC classification number: B29C64/386 ,  B29C64/153 ,  B33Y40/00 ,  B33Y50/00 ,  B33Y50/02 ,  B33Y70/00

    Abstract: V-CAD data is prepared by dividing external data 12 consisting of boundary data of an object into rectangular parallelepiped cells 13 having boundary planes orthogonal to each other in accordance with octree division and separating the respective divided cells into internal cells 13a positioned on the inner side of the object and boundary cells 13b including a boundary face, and a modeling unit quantity of a prototyping material 7 is changed in accordance with sizes of the internal cell 13a and the boundary cell 13b of a modeling portion. The prototyping material 7 is 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.

    METHOD OF DISCRIMINATING SHAPE ERRORS OF FREE-FORM CURVED SURFACE
    19.
    发明公开
    METHOD OF DISCRIMINATING SHAPE ERRORS OF FREE-FORM CURVED SURFACE 失效
    方法确定中的误差以任意Krummen表面的形式

    公开(公告)号：EP0977009A4

    公开(公告)日：2006-10-18

    申请号：EP98917621

    申请日：1998-04-22

    Applicant: RIKEN ,  AMADA CO LTD

    Inventor： KASE KIWAMU ,  MAKINOUCHI AKITAKE ,  KONDO TETSUYA ,  MORI NAOMICHI

    IPC: G01B21/20 ,  G06T17/30 ,  G06T17/00

    CPC classification number: G06T17/30 ,  G01B21/20 ,  Y10S715/964

    Abstract: The principal curvatures in the corresponding positions of an object curved surface S' and a reference curved surface S are determined and the respective regions are classified into the following three categories in accordance with the difference between the principal curvatures; i.e. (a) regions where both of the principal curvatures increase, (b) regions where both of the principal curvatures decrease, and (c) regions where one principal curvature increases while the other decreases. The regions (a), (b) and (c) are judged to be mount, valleys and twists respectively and are displayed by different symbols or colors on a display screen. Thus it has become possible to recognize the different regions of the two three-dimensional shapes properly, to find the causes of errors such as partial bend, to express the extent of agreement between the two shapes by objective numerical values, and to discriminate shape errors even if the reference shape is complicated.

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