公开(公告)号：US20160114219A1

公开(公告)日：2016-04-28

申请号：US14981260

申请日：2015-12-28

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hyoungchol KIM ,  Masahide ONUKI

IPC: A63B37/00

CPC classification number: A63B37/0006 ,  A63B37/0007 ,  A63B37/0008 ,  A63B37/0009 ,  A63B37/0012 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0077 ,  A63B37/0084 ,  A63B37/0089 ,  A63B37/009 ,  A63B37/0096 ,  G06T17/20

Abstract: A golf ball 2 has a large number of dimples 8 on a surface thereof. A trajectory of the golf ball 2 is divided into first to fourth segments. An average CD1 of drag coefficients CD and an average CL1 of lift coefficients CL in the first segment are equal to or less than 0.225 and 0.180, respectively. An average CD2 of drag coefficients CD and an average CL2 of lift coefficients CL in the second segment are equal to or less than 0.250 and 0.220, respectively. An average CD3 of drag coefficients CD and an average CL3 of lift coefficients CL in the third segment are equal to or greater than 0.260 and 0.220, respectively. An average CD4 of drag coefficients CD and an average CL4 of lift coefficients CL in the fourth segment are equal to or greater than 0.250 and 0.200, respectively.

Abstract translation: 高尔夫球2在其表面上具有大量凹坑8。 高尔夫球2的轨迹被分成第一到第四段。 第一段中的阻力系数CD的平均CD1和升力系数CL的平均CL1分别等于或小于0.225和0.180。 阻力系数CD的平均CD2和第二段中的升力系数CL的平均CL2分别等于或小于0.250和0.220。 阻力系数CD的平均值CD3和第三段中的升力系数CL的平均CL3分别等于或大于0.260和0.220。 阻力系数CD的平均值CD4和第四段中的升力系数CL的平均CL4分别等于或大于0.250和0.200。

公开(公告)号：US20150031477A1

公开(公告)日：2015-01-29

申请号：US14444300

申请日：2014-07-28

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takahiro SAJIMA ,  Hyoungchol KIM

IPC: A63B37/00

CPC classification number: A63B37/0021 ,  A63B37/0004 ,  A63B37/0006 ,  A63B37/0007 ,  A63B37/0012 ,  A63B37/0018

Abstract: A golf ball has a large number of dimples on a surface thereof. The golf ball meets the following mathematical formula (I): Su≦9.0*So−6.04  (I), Where: So represents a ratio of a sum of spherical surface areas of all the dimples to a surface area of a phantom sphere of the golf ball; and Su represents a standard deviation (mm2) of the spherical surface areas of all the dimples. Preferably, the ratio So is equal to or greater than 0.780. Preferably, the standard deviation Su is equal to or less than 2.150 mm2. Preferably, a number of the dimples is equal to or greater than 300 but equal to or less than 390. Preferably, an average Sa of the spherical surface areas s of all the dimples is equal to or greater than 14.00 mm2.

Abstract translation: 高尔夫球在其表面上具有大量凹坑。 高尔夫球符合以下数学公式（I）：Su＆nlE; 9.0 * So-6.04（I）其中：So表示所有凹坑的球面表面积与幻影球面的表面积之比 高尔夫球; 并且Su表示所有凹坑的球形表面积的标准偏差（mm2）。 优选地，比率So等于或大于0.780。 优选地，标准偏差Su等于或小于2.150mm 2。 优选地，多个凹坑等于或大于300但等于或小于390.优选地，所有凹坑的球面表面积s的平均Sa等于或大于14.00mm 2。

公开(公告)号：US20150375049A1

公开(公告)日：2015-12-31

申请号：US14749200

申请日：2015-06-24

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Kohei MIMURA ,  Takahiro SAJIMA ,  Hyoungchol KIM ,  Masahide ONUKI

IPC: A63B37/00

CPC classification number: A63B37/0018 ,  A63B37/0017 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/009 ,  A63B37/0096

Abstract: A golf ball has a large number of dimples on a surface thereof. The golf ball meets the following mathematical formula (I): 1.320≦L1≦1.420 (I), where L1 represents a ratio of a lift coefficient CL1 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 2820 rpm, relative to a lift coefficient CL2 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 1740 rpm.

Abstract translation: 高尔夫球在其表面上具有大量凹坑。 高尔夫球满足以下数学公式（I）：1.320＆nlE; L1＆nlE; 1.420（I）其中L1表示在雷诺数为1.290×105的条件下测得的升力系数CL1与旋转速率 2820rpm，相对于在雷诺数为1.290×105和旋转速率为1740rpm的条件下测量的升力系数CL2。

公开(公告)号：US20160287942A1

公开(公告)日：2016-10-06

申请号：US15178179

申请日：2016-06-09

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hyoungchol KIM ,  Masahide ONUKI ,  Takahiro SAJIMA ,  Kohei MIMURA

IPC: A63B37/00

CPC classification number: A63B37/002 ,  A63B37/0006 ,  A63B37/0007 ,  A63B37/0018 ,  A63B37/0021 ,  G06T17/20

Abstract: A golf ball has, on a surface thereof, a rugged pattern composed of a land and a large number of dimples. A method for designing the rugged pattern includes the steps of: (1) assuming a large number of circles on a surface of a phantom sphere; (2) assuming a large number of generating points 16 based on positions of the large number of circles; (3) assuming a large number of Voronoi regions 18 on the surface of the phantom sphere by a Voronoi tessellation based on the large number of generating points 16; and (4) assigning a dimple and a land to the surface of the phantom sphere based on contours of the large number of Voronoi regions 18.

Abstract translation: 高尔夫球的表面具有由陆地和大量凹坑构成的凹凸图案。 用于设计凹凸图案的方法包括以下步骤：（1）在幻影球的表面上假设大量的圆; （2）基于大量圆的位置假设大量的生成点16; （3）基于大量的生成点16，通过Voronoi镶嵌假设在幻影球的表面上存在大量的Voronoi区域18; 和（4）基于大量Voronoi区域18的轮廓，将一个凹坑和一个土地分配给幻影球体的表面。

公开(公告)号：US20160096076A1

公开(公告)日：2016-04-07

申请号：US14856721

申请日：2015-09-17

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Kohei MIMURA ,  Takahiro SAJIMA ,  Hyoungchol KIM

IPC: A63B37/00 ,  G06F17/50

CPC classification number: A63B37/0006 ,  A63B37/0009 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/0075

Abstract: A golf ball 2 has a large number of dimples 10 on a surface thereof. The contours of the dimples 10 are non-circular. A standard deviation of areas of the dimples 10 is equal to or less than 1.7 mm2. A ratio of a total area of the dimples 10 relative to a surface area of a phantom sphere of the golf ball 2 is equal to or greater than 80%. By comparting lines CS obtained by projecting sides of a regular dodecahedron, which is inscribed in the phantom sphere, onto the phantom sphere, a surface of the phantom sphere can be divided into 12 units Ut each of which meets the following mathematical formula (I): −2≦(Nt/12)−Nu≦2  (I), where Nt represents the total number of the dimples 10 and Nu represents the number of the dimples 10 on one unit.

Abstract translation: 高尔夫球2在其表面上具有大量凹坑10。 凹坑10的轮廓是非圆形的。 凹坑10的面积的标准偏差等于或小于1.7mm 2。 凹坑10的总面积相对于高尔夫球2的幻影球的表面积的比率等于或大于80％。 通过将通过将幻影球体内的正规十二面体的侧面突出而获得的线CS缩放到幻影球体上，将幻影球体的表面分成12个单位，其中每一个符合以下数学公式（I） ：-2＆nlE;（Nt / 12）-Nu＆nlE; 2（I）其中Nt表示凹坑10的总数，Nu表示一个单元上的凹坑10的数量。

公开(公告)号：US20140295997A1

公开(公告)日：2014-10-02

申请号：US14226923

申请日：2014-03-27

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hyoungchol KIM ,  Masahide ONUKI

IPC: A63B37/00 ,  G06F17/50

CPC classification number: A63B37/0006 ,  A63B37/0007 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0033 ,  A63B37/0064 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/0097 ,  A63B45/00 ,  G06F17/50

Abstract: A golf ball 2 has, on a surface thereof, a rugged pattern composed of a land 10 and a large number of dimples 8. A process for designing the rugged pattern includes the steps of: (1) arranging a large number of generating points on a surface of a phantom sphere; (2) assuming a large number of Voronoi regions on the surface of the phantom sphere by a Voronoi tessellation based on the large number of generating points; (3) calculating centers of gravity of the Voronoi regions and setting the centers of gravity as new generating points; (4) assuming a large number of new Voronoi regions on the surface of the phantom sphere by a Voronoi tessellation based on a large number of the new generating points; and (5) assigning dimples and a land to the surface of the phantom sphere based on contours of the new Voronoi regions.

Abstract translation: 高尔夫球2在其表面上具有由平台10和大量凹坑8组成的凹凸图案。设计凹凸图案的工艺包括以下步骤：（1）将大量的生成点布置在 幻影球的表面; （2）通过基于大量生成点的Voronoi镶嵌假设在幻影球表面上存在大量的Voronoi区域; （3）计算Voronoi地区的重心，并将重心设置为新的生成点; （4）通过基于大量新生成点的Voronoi镶嵌，假设在幻影球表面上存在大量新的Voronoi区域; 和（5）基于新的Voronoi区域的轮廓，将幻影和土地分配给幻影球体的表面。

公开(公告)号：US20140187356A1

公开(公告)日：2014-07-03

申请号：US14100804

申请日：2013-12-09

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hyoungchol KIM ,  Masahide ONUKI

IPC: A63B37/00

CPC classification number: A63B37/0006 ,  A63B37/0007 ,  A63B37/0008 ,  A63B37/0009 ,  A63B37/0012 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0077 ,  A63B37/0084 ,  A63B37/0089 ,  A63B37/009 ,  A63B37/0096 ,  G06T17/20

Abstract: A golf ball 2 has a large number of dimples 8 on a surface thereof. A trajectory of the golf ball 2 is divided into first to fourth segments. An average CD1 of drag coefficients CD and an average CL1 of lift coefficients CL in the first segment are equal to or less than 0.225 and 0.180, respectively. An average CD2 of drag coefficients CD and an average CL2 of lift coefficients CL in the second segment are equal to or less than 0.250 and 0.220, respectively. An average CD3 of drag coefficients CD and an average CL3 of lift coefficients CL in the third segment are equal to or greater than 0.260 and 0.220, respectively. An average CD4 of drag coefficients CD and an average CL4 of lift coefficients CL in the fourth segment are equal to or greater than 0.250 and 0.200, respectively.

Abstract translation: 高尔夫球2在其表面上具有大量凹坑8。 高尔夫球2的轨迹被分成第一到第四段。 第一段中的阻力系数CD的平均CD1和升力系数CL的平均CL1分别等于或小于0.225和0.180。 阻力系数CD的平均CD2和第二段中的升力系数CL的平均CL2分别等于或小于0.250和0.220。 阻力系数CD的平均值CD3和第三段中的升力系数CL的平均CL3分别等于或大于0.260和0.220。 阻力系数CD的平均值CD4和第四段中的升力系数CL的平均CL4分别等于或大于0.250和0.200。

公开(公告)号：US20140128179A1

公开(公告)日：2014-05-08

申请号：US14072902

申请日：2013-11-06

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hyoungchol KIM ,  Masahide ONUKI ,  Takahiro SAJIMA ,  Kohei MIMURA

IPC: A63B37/00

CPC classification number: A63B37/002 ,  A63B37/0006 ,  A63B37/0007 ,  A63B37/0018 ,  A63B37/0021 ,  G06T17/20

Abstract: A golf ball has, on a surface thereof, a rugged pattern composed of a land and a large number of dimples. A method for designing the rugged pattern includes the steps of: (1) assuming a large number of circles on a surface of a phantom sphere; (2) assuming a large number of generating points 16 based on positions of the large number of circles; (3) assuming a large number of Voronoi regions 18 on the surface of the phantom sphere by a Voronoi tessellation based on the large number of generating points 16; and (4) assigning a dimple and a land to the surface of the phantom sphere based on contours of the large number of Voronoi regions 18.

Abstract translation: 高尔夫球的表面具有由陆地和大量凹坑构成的凹凸图案。 用于设计凹凸图案的方法包括以下步骤：（1）在幻影球的表面上假设大量的圆; （2）基于大量圆的位置假设大量的生成点16; （3）基于大量的生成点16，通过Voronoi镶嵌假设在幻影球的表面上存在大量的Voronoi区域18; 和（4）基于大量Voronoi区域18的轮廓，将一个凹坑和一个土地分配给幻影球体的表面。

公开(公告)号：US20130102417A1

公开(公告)日：2013-04-25

申请号：US13659119

申请日：2012-10-24

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hyoungchol KIM

IPC: A63B37/14 ,  G06F17/50

CPC classification number: A63B37/0006 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  G06T17/20

Abstract: A golf ball 2 has, on a surface thereof, a dimple pattern consisting of a land 10 and a large number of dimples 8. A process for designing the dimple pattern includes the steps of: (1) randomly arranging a large number of points on the surface of a phantom sphere; (2) calculating a distance between a first point and a second point which is a point closest to the first point; (3) deciding a radius on the basis of the distance; (4) assuming a circle which has a center at the first point and has the radius; and (5) assuming a dimple 8 whose contour coincides with the circle.

Abstract translation: 高尔夫球2在其表面上具有由平台10和多个凹坑8组成的凹坑图案。设计凹坑图案的过程包括以下步骤：（1）将大量的点随机排列在 幻影球的表面; （2）计算作为最靠近第一点的点的第一点和第二点之间的距离; （3）根据距离决定半径; （4）假设在第一点具有中心并具有半径的圆; 和（5）假设其轮廓与圆形重合的凹坑8。