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    PROCESS FOR DESIGNING RUGGED PATTERN ON GOLF BALL SURFACE
    11.
    发明申请
    PROCESS FOR DESIGNING RUGGED PATTERN ON GOLF BALL SURFACE 有权
    在高尔夫球表面上设计强化图案的过程

    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。

    GOLF BALL
    12.
    发明申请
    GOLF BALL 审中-公开

    公开(公告)号：US20180161629A1

    公开(公告)日：2018-06-14

    申请号：US15719006

    申请日：2017-09-28

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Kohei MIMURA ,  Takahiro SAJIMA

    IPC: A63B37/00

    CPC classification number: A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0033 ,  A63B37/0035 ,  A63B37/0045 ,  A63B37/0047 ,  A63B37/0064 ,  A63B37/008 ,  A63B45/00

    Abstract: A golf ball 2 has a large number of dimples 10 on a surface thereof. Fifteen axes are assumed for a phantom sphere of the golf ball 2. 30240 points on a predetermined region of the surface of the golf ball 2 during backspin about each axis are determined. A length L1 of a perpendicular line that extends from each point to the axis is calculated. A total length L2 is calculated by summing 21 lengths L1 calculated based on 21 perpendicular lines arranged in a direction of the axis. A transformed data constellation is obtained by performing Fourier transformation on a data constellation of 1440 total lengths L2 calculated along a direction of rotation about the axis. A peak value and an order of a maximum peak of the transformed data constellation are calculated. A minimum value of 15 peak values is not less than 95 mm.

    GOLF BALL
    15.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20160310800A1

    公开(公告)日：2016-10-27

    申请号：US15139113

    申请日：2016-04-26

    Applicant: Dunlop Sports Co. Ltd.

    Inventor： Hironori TAKIHARA ,  Kosuke TACHIBANA ,  Takahiro SAJIMA ,  Kohei MIMURA

    IPC: A63B37/00

    CPC classification number: A63B37/0092 ,  A63B37/0031 ,  A63B37/0032 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0075 ,  A63B37/0076

    Abstract: An object of the present invention is to provide a golf ball traveling a great distance on driver shots and on iron shots. The present invention provides a golf ball comprising a spherical core including an inner layer and an outer layer, and a cover, wherein a difference (HX+1−HX−1) between a hardness (HX+1) at a point outwardly away in a radial direction from a boundary between the inner layer and the outer layer of the spherical core by 1 mm and a hardness (HX−1) at a point inwardly away in the radial direction from the boundary between the inner layer and the outer layer of the spherical core by 1 mm is 0 or more in Shore C hardness, a surface hardness (HX+Y) of the spherical core is more than 65 in Shore C hardness, an angle α of a hardness gradient of the inner layer is 0° or more, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, a thickness of the cover is 3 mm or less, a difference (Hc−Hx+y) between a hardness (Hc) of the cover and the surface hardness (HX+Y) of the spherical core is 2 or more in Shore C hardness, and the cover has a highest hardness among the constituent members of the golf ball.

    Abstract translation: 本发明的目的是提供一种在驾驶员射击和铁杆射击上行进很远距离的高尔夫球。 本发明提供一种高尔夫球，其包括具有内层和外层的球形芯和盖，其中，在向外的点处的硬度（HX + 1）之间的差异（HX + 1-HX-1） 从球形芯的内层和外层之间的边界的径向方向为1mm，并且在径向方向上从内层和外层之间的边界向内的点处的硬度（HX-1） 球状芯的肖氏C硬度为0以上，球状芯的表面硬度（HX + Y）在肖氏C硬度中大于65，内层的硬度梯度的角度α为0° 以上，外层的硬度梯度的角度α和角度β之间的差（α-β）为0°以上，盖的厚度为3mm以下，差（Hc-Hx + （Hc）与球形芯的表面硬度（HX + Y）的肖氏C硬度为2以上，y e盖在高尔夫球的构成部件中具有最高的硬度。

    GOLF BALL
    16.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20160184648A1

    公开(公告)日：2016-06-30

    申请号：US14933192

    申请日：2015-11-05

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Kohei MIMURA ,  Takahiro SAJIMA ,  Hironori TAKIHARA

    IPC: A63B37/00

    CPC classification number: A63B37/0021 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0029 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/004 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0047 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/0077 ,  A63B37/0092

    Abstract: A golf ball has a large number of dimples 10 on a surface thereof. The dimples 10 include a plurality of small dimples 10S each having an area of less than 8.0 mm2, and a plurality of large dimples 10L each having an area of equal to or greater than 8.0 mm2. A ratio PS of a sum of areas of all the small dimples 10S to a surface area of a phantom sphere of the golf ball is less than 2.0%. A ratio PL of a sum of areas of all the large dimples 10L to the surface area of the phantom sphere is equal to or greater than 79.0%. A degree G of uniformity of areas of the large dimples 10L is equal to or less than 1.15.

    Abstract translation: 高尔夫球在其表面上具有大量凹坑10。 凹坑10包括各自具有小于8.0mm 2的面积的多个小凹坑10S，以及各自具有等于或大于8.0mm 2的面积的多个大凹坑10L。 所有小凹坑10S的面积之和与高尔夫球的幻影球的表面积之和的比值PS小于2.0％。 所有大凹坑10L的面积和幻影球面的面积之和的比率PL等于或大于79.0％。 大凹坑10L的区域的均匀度G等于或小于1.15。

    GOLF BALL
    17.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20160059081A1

    公开(公告)日：2016-03-03

    申请号：US14839387

    申请日：2015-08-28

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Kohei MIMURA ,  Takahiro SAJIMA

    IPC: A63B37/00

    CPC classification number: A63B37/0006 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/0077 ,  A63B37/009 ,  A63B37/0092 ,  A63B37/0096

    Abstract: A golf ball 2 includes a core 4, a mid layer 6 and a cover 8. The golf ball 2 further includes a large number of dimples 10 on a surface thereof. The surface has a northern hemisphere N and a southern hemisphere S. Each of the hemispheres has a high-latitude region 14, a mid-latitude region 18 and a low-latitude region 16. The number of planes that can divide a dimple pattern of the hemisphere so that divided dimple patterns are mirror symmetry to each other is one. Neither a dimple pattern of the high-latitude region 14 nor a dimple pattern of the low-latitude region 16 is rotationally symmetrical. A product THm of a thickness and a hardness for the mid layer 6, and a product THc of a thickness and a hardness for the cover 8 satisfy the following mathematical formula. THc−THm≦50

    Abstract translation: 高尔夫球2包括芯4，中间层6和盖8.高尔夫球2在其表面上还包括大量凹坑10。 该表面具有北半球N和南半球S.每个半球具有高纬度区域14，中纬度区域18和低纬度区域16.可以分割凹坑图案的平面的数量 这个半球使得分开的凹坑图案彼此镜像对称是一个。 高纬度区域14的凹坑图案和低纬度区域16的凹坑图案都不是旋转对称的。 用于中间层6的厚度和硬度的产品THm以及盖8的厚度和硬度的乘积THc满足以下数学公式。 THC-THM＆nlE; 50

    GOLF BALL
    18.
    发明申请
    GOLF BALL 有权
    高尔夫球

    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。

    GOLF BALL
    19.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20150375047A1

    公开(公告)日：2015-12-31

    申请号：US14752491

    申请日：2015-06-26

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Takahiro SAJIMA ,  Kohei MIMURA

    IPC: A63B37/00

    CPC classification number: A63B37/0006 ,  A63B37/0004 ,  A63B37/0016 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0077

    Abstract: A golf ball 2 includes a large number of dimples 10 on a surface thereof. The surface has a northern hemisphere N and a southern hemisphere S. Each of the hemispheres has a high-latitude region 14, a mid-latitude region 18 and a low-latitude region 16. The high-latitude region 14 has a latitude range of 40° or greater but 90° or less. The mid-latitude region 18 has a latitude range of 20° or greater but less than 40°. The low-latitude region 16 has a latitude range of 0° or greater but less than 20°. The number of planes that can divide a dimple pattern of the hemisphere so that divided dimple patterns are mirror symmetry to each other is one. Neither a dimple pattern of the high-latitude region 14 nor a dimple pattern of the low-latitude region 16 is rotationally symmetrical.

    Abstract translation: 高尔夫球2在其表面上包括大量凹坑10。 该表面具有北半球N和南半球S.每个半球具有高纬度区域14，中纬度区域18和低纬度区域16.高纬度区域14具有纬度范围 40°以上但90°以下。 中纬度区域18的纬度范围为20°以上但小于40°。 低纬度区域16的纬度范围为0°以上但小于20°。 可以分割半球的凹坑图案的平面数量，使得分开的凹坑图案彼此镜像对称。 高纬度区域14的凹坑图案和低纬度区域16的凹坑图案都不是旋转对称的。

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