公开(公告)号：US20070186585A1

公开(公告)日：2007-08-16

申请号：US10598801

申请日：2005-03-25

申请人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

发明人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

IPC分类号： A44C17/00

CPC分类号： A44C17/001

摘要： An oval-cut diamond comprises a girdle having a contour line in an oval or oval-like shape, a crown above the girdle having an octagonal table facet on a top of it and a pavilion below the girdle. The girdle is of a ratio (b/a) of a short radius to a long radius of 0.6 or more, in which a radius in long axis direction is “a”, and a radius in short axis direction is “b”. A pair of pavilion main facets positioned opposite to each other with respect to a central axis has a pair of crown main facets or star facets facing the pair of pavilion main facets through the girdle. The two pavilion main facets, the two crown main facets or star facets and the table facet have a common vertical plane within the facets so that brilliancy of reflection lights coming out of the table facet and crown facets is enhanced.

摘要翻译： 椭圆形切割金刚石包括具有椭圆形或椭圆形形状的轮廓线的腰带，腰带上方的冠部具有在其顶部上的八边形台面和在腰带下方的亭子。 腰围的长径方向的半径为“a”，短轴方向的半径为“b”的短半径与长半径的比率（b / a）为0.6以上。 相对于中心轴线彼此相对设置的一对亭子主面具有一对冠面主要小面或通过腰带面对一对亭子主要小面的星形面。 两个亭子的主要面，两个皇冠主要小面或星形刻面和桌面在面内具有一个共同的垂直平面，从而增强了从桌面和表冠面出来的反射光的辉煌。

公开(公告)号：US07225641B2

公开(公告)日：2007-06-05

申请号：US10350388

申请日：2003-01-23

申请人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

发明人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

IPC分类号： A44C17/00

CPC分类号： A44C17/001

摘要： A cut design of an ornamental diamond and an observation method of the diamond which an observer can perceive a more beauty, are disclosed. The cut design is a round brilliant cut comprising a girdle, a crown above the girdle and a pavilion below the girdle. A girdle height (h) is 0.026 to 0.3 times a girdle radius, a pavilion angle (p) of a pavilion main facet ranges from 37.5 degrees to 41 degrees, and a crown angle (c) of a crown main facet is within a range of satisfying: c>−2.8667×p+134.233 and p

摘要翻译： 公开了一种观赏钻石的切割设计和观察者可以感觉到更美的钻石的观察方法。 切割设计是圆形明亮的切割，包括腰带，腰带上方的表冠和腰带下方的凉亭。 腰围高度（h）为腰围半径的0.026〜0.3倍，亭部主面的亭角（p）为37.5度〜41度，冠主面的冠角（c）为 满足：c> -2.8667xp + 134.233，p <¼x{（SIN＆lt; 1＆gt;（1 / n）+ sin＆lt; 1＆gt;（1 / n.sin c） ）x180 / pi + 180-2c}，其中n：金刚石的折射率，pi：圆形常数，p：展位角度，以c为单位：冠角度。 观赏钻石的切割设计为观察者提供了大量的视觉感知反射，当观察者在桌面上观察钻石时，观察角度小于20度的视线，并在桌面的中心垂直线。

公开(公告)号：US20050166635A1

公开(公告)日：2005-08-04

申请号：US11087917

申请日：2005-03-23

申请人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

发明人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

IPC分类号： A44C17/00

CPC分类号： A44C17/001

摘要： A cut design of an ornamental diamond and an observation method of the diamond which an observer can perceive a more beauty, are disclosed. The cut design is a round brilliant cut comprising a girdle, a crown above the girdle and a pavilion below the girdle. A girdle height (h) is 0.026 to 0.3 times a girdle radius, a pavilion angle (p) of a pavilion main facet ranges from 37.5 degrees to 41 degrees, and a crown angle (c) of a crown main facet is within a range of satisfying: c>−2.8667×p+134.233 and p

摘要翻译： 公开了一种观赏钻石的切割设计和观察者可以感觉到更美的钻石的观察方法。 切割设计是圆形明亮的切割，包括腰带，腰带上方的表冠和腰带下方的凉亭。 腰围高度（h）为腰围半径的0.026〜0.3倍，亭部主面的亭角（p）为37.5度〜41度，冠主面的冠角（c）为 满足：c> -2.8667xp + 134.233，p <1 / 4x {（SIN ^{-1（1 / n）+ sin（-1））（1 / n.sinc ））x180 / pi + 180.2c}，其中n：金刚石的折射率，pi：圆形常数，p：度角的亭角，c：冠角度（度）。 观赏钻石的切割设计为观察者提供了大量的视觉感知反射，当观察者在桌面上观察钻石时，观察角度小于20度的视线，并在桌面的中心垂直线。}

公开(公告)号：US06694778B2

公开(公告)日：2004-02-24

申请号：US09879750

申请日：2001-06-12

申请人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

发明人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

IPC分类号： A44C1700

CPC分类号： A44C17/001

摘要： A cut design for diamonds having a crown of substantially a frustum shape and substantially a conic pavilion directly under the frustum part, the diamond being enhanced in the brilliancy and scintillation of its crown part, the brilliancy and scintillation twinkling, and bluish lights being returned as reflected lights. A crown angle c and a pavilion angle p are so determined that lights coming in crown facets and emitted from crown facets, lights coming in the table facet and emitted from the crown facets, and lights coming in the crown facets and emitted from the table facet be directed toward the observer at the same time. Further, it is preferable to determine the crown angle c and the pavilion angle p so that the angles formed by incident lights and emitted lights are substantially equal to each other. Its table diameter should be between or equal to 0.60 and 0.33, more preferably not more than 0.55 and even more preferably not more than 0.38, in its ratio to the girdle diameter.

摘要翻译： 金刚石的切割设计，具有基本上截头锥形状的冠部和直立在截头圆锥体部分下方的基本上是圆锥形馆，钻石在其冠部的辉煌和闪烁中被增强，闪耀和闪烁闪烁，并且蓝色的光被归还为 反射灯。 冠角c和亭角p被确定为来自冠面的灯和从冠面发射，来自桌面的灯从冠面开始发射，并且进入冠面并从桌面发射的灯 同时指向观察者。 此外，优选地确定冠角度c和亭部角度p，使得由入射光和发射光形成的角度基本上彼此相等。 其直径与腰围直径的比例应在0.60至0.33之间，更优选不大于0.55甚至更优选不大于0.38。

公开(公告)号：US20070186586A1

公开(公告)日：2007-08-16

申请号：US10598805

申请日：2005-03-25

申请人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

发明人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

IPC分类号： A44C17/00

CPC分类号： A44C17/001

摘要： An oval-cut diamond comprises a girdle having a contour line in an oval or oval-like shape, a crown above the girdle having an octagonal table facet on a top of it and a pavilion below the girdle. That is a modified oval brilliant cut diamond, in which one of the crown and the pavilion is rotated by about a sixteenth revolution around its central axis from an ordinary brilliant cut diamond. The girdle is of a ratio (b/a) of a short radius to a long radius of 0.6 or more, in which a radius in long axis direction is “a”, and a radius in short axis direction is “b”. A pair of pavilion main facets positioned opposite to each other with respect to the central axis has a pair of crown main facets or star facets facing the pair of pavilion main facets through the girdle. The two pavilion main facets, the two crown main facets or star facets and the table facet have a common vertical plane within the facets so that brilliancy of reflection lights coming out of the table facet and crown facets is enhanced.

摘要翻译： 椭圆形切割金刚石包括具有椭圆形或椭圆形形状的轮廓线的腰带，腰带上方的冠部具有在其顶部上的八边形台面和在腰带下方的亭子。 这是一个改进的椭圆形明亮切割钻石，其中一个冠和展厅围绕其中心轴线从普通的明亮切割钻石旋转约十六转。 腰围的长径方向的半径为“a”，短轴方向的半径为“b”的短半径与长半径的比率（b / a）为0.6以上。 相对于中心轴线彼此相对定位的一对亭子主面具有一对通过腰带朝向一对展馆主小面的表冠主要面或星形面。 两个亭子的主要面，两个皇冠主要小面或星形刻面和桌面在面内具有一个共同的垂直平面，从而增强了从桌面和表冠面出来的反射光的辉煌。

公开(公告)号：US07249471B2

公开(公告)日：2007-07-31

申请号：US11087917

申请日：2005-03-23

申请人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

发明人： Yoshinori Kawabuchi ,  Tamotsu Matsumura

IPC分类号： A44C17/00

CPC分类号： A44C17/001

摘要： A cut design of an ornamental diamond and an observation method of the diamond which an observer can perceive a more beauty, are disclosed. The cut design is a round brilliant cut comprising a girdle, a crown above the girdle and a pavilion below the girdle. A girdle height (h) is 0.026 to 0.3 times a girdle radius, a pavilion angle (p) of a pavilion main facet ranges from 37.5 degrees to 41 degrees, and a crown angle (c) of a crown main facet is within a range of satisfying: c>−2.8667×p+134.233 and p

摘要翻译： 公开了一种观赏钻石的切割设计和观察者可以感觉到更美的钻石的观察方法。 切割设计是圆形明亮的切割，包括腰带，腰带上方的表冠和腰带下方的凉亭。 腰围高度（h）为腰围半径的0.026〜0.3倍，亭部主面的亭角（p）为37.5度〜41度，冠主面的冠角（c）为 满足：c> -2.8667xp + 134.233，p <1 / 4x {（SIN ^{-1（1 / n）+ sin <-1>（1 / n.sin c））x180 / pi + 180.2c}，其中n：金刚石的折射率，pi：圆形常数，p：度角的亭角，c：冠角度（度）。 观赏钻石的切割设计为观察者提供了大量的视觉感知反射，当观察者在桌面上观察钻石时，角度小于20度的视线与桌面中心的垂直线观察。}

公开(公告)号：US08215127B2

公开(公告)日：2012-07-10

申请号：US12811568

申请日：2008-01-09

申请人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

发明人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

IPC分类号： A44C17/00

CPC分类号： A44C17/001

摘要： An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the round brilliant cut and its pavilion consists of a first pavilion and a second pavilion separated by a horizontal division plane. The second pavilion is an octagonal pyramid and its side faces form second pavilion main facets. The first pavilion is a hexadecagonal frustum with a top face on the horizontal division plane and its side faces form first lower girdle facets. First pavilion main facets extend from the girdle and between the first lower girdle facets, into between the second pavilion main facets. The ornamental diamond having the two-stage pavilion is much more brilliant than and has twice as many reflection patterns as the conventional round brilliant cut.

摘要翻译： 一个装饰性的钻石作为非常明亮的钻石提供，当从桌面和冠面上方观察时，具有许多反射图案。 钻石具有与圆形明亮切割相同的冠冕，其展馆由第一个展馆和由水平分割平面分开的第二个展馆组成。 第二个亭子是八角形金字塔，其侧面形成第二个亭子的主要面。 第一个亭子是一个十六角锥台，在水平分割平面上具有顶面，其侧面形成第一个下腰带小平面。 第一个亭子的主要面从腰带和第一个下腰带之间延伸到第二个亭子主要面之间。 具有两段式凉亭的观赏钻石比传统的圆形明亮切割具有更多的辉煌，并且具有两倍的反射图案。

公开(公告)号：US20110239705A1

公开(公告)日：2011-10-06

申请号：US13120888

申请日：2009-09-24

申请人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

发明人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

IPC分类号： A44C17/00 ,  B28D5/00

CPC分类号： A44C17/001

摘要： The color stone 1 is formed of a material with a refractive index n of 1.55 to 2.40, and is subjected to round brilliant-cutting. The pavilion angle p and the crown angle c satisfy the correlation of, −A(n)×p+B(n)+K1≧c≧−A(n)×p+B(n)+K2 where, A(n) is represented by A(n)=−1.122×n5+9.14×n4−26.752×n3+32.982×n2−12.842×n, B(n) is represented by B(n)=−22.323×n5+184.166×n4−527.616×n3+594.102×n2−128.68×n, K1 is represented by K1=+4, and K2 is represented by K2=−4.

摘要翻译： 彩色石1由折射率n为1.55〜2.40的材料形成，并进行圆形切割。 亭（角）p和冠角c满足-A（n）×p + B（n）+K1≥c≥-A（n）×p + B（n）+ K2的相关关系，其中A（n ）由A（n）= - 1.122×n5 + 9.14×n4-26.752×n3 + 32.982×n2-12.842×n表示，B（n）由B（n）= - 22.323×n5 + 184.166×n4 -527.616×n3 + 594.102×n2-128.68×n，K1由K1 = +4表示，K2表示为K2 = -4。

公开(公告)号：US20110016918A1

公开(公告)日：2011-01-27

申请号：US12811529

申请日：2008-01-09

申请人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

发明人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

IPC分类号： A44C17/00

CPC分类号： A44C17/001

摘要： An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the round brilliant cut and its pavilion consists of a first pavilion and a second pavilion separated by a horizontal division plane. Lower girdle facets and pavilion main facets are bent by the horizontal division plane between the first and second pavilions, and a first pavilion angle is larger than a second pavilion angle. The ornamental diamond having the two-stage pavilion is much more brilliant than and has twice as many reflection patterns as the conventional round brilliant cut.

摘要翻译： 一个装饰性的钻石作为非常明亮的钻石提供，当从桌面和冠面上方观察时，具有许多反射图案。 钻石具有与圆形明亮切割相同的冠冕，其展馆由第一个展馆和由水平分割平面分开的第二个展馆组成。 下腰面和亭子主面通过第一和第二亭之间的水平分割平面弯曲，并且第一亭亭角大于第二亭亭角。 具有两段式凉亭的观赏钻石比传统的圆形明亮切割具有更多的辉煌，并且具有两倍的反射图案。

公开(公告)号：US20100282234A1

公开(公告)日：2010-11-11

申请号：US12811568

申请日：2008-01-09

申请人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

发明人： Tamotsu Matsumura ,  Yoshinori Kawabuchi ,  Akira Itoh

IPC分类号： B28D5/00

CPC分类号： A44C17/001

摘要： An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the round brilliant cut and its pavilion consists of a first pavilion and a second pavilion separated by a horizontal division plane. The second pavilion is an octagonal pyramid and its side faces form second pavilion main facets. The first pavilion is a hexadecagonal frustum with a top face on the horizontal division plane and its side faces form first lower girdle facets. First pavilion main facets extend from the girdle and between the first lower girdle facets, into between the second pavilion main facets. The ornamental diamond having the two-stage pavilion is much more brilliant than and has twice as many reflection patterns as the conventional round brilliant cut.

摘要翻译： 一个装饰性的钻石作为非常明亮的钻石提供，当从桌面和冠面上方观察时，具有许多反射图案。 钻石具有与圆形明亮切割相同的冠冕，其展馆由第一个展馆和由水平分割平面分开的第二个展馆组成。 第二个亭子是八角形金字塔，其侧面形成第二个亭子的主要面。 第一个亭子是一个十六角锥台，在水平分割平面上具有顶面，其侧面形成第一个下腰带小平面。 第一个亭子的主要面从腰带和第一个下腰带之间延伸到第二个亭子主要面之间。 具有两段式凉亭的观赏钻石比传统的圆形明亮切割具有更多的辉煌，并且具有两倍的反射图案。