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    Golf ball
    2.
    发明授权
    Golf ball 失效
    高尔夫球

    公开(公告)号：US5935023A

    公开(公告)日：1999-08-10

    申请号：US989634

    申请日：1997-12-12

    申请人： Kazuto Maehara ,  Keisuke Ihara ,  Hirotaka Shimosaka ,  Michio Inoue ,  Atsuki Kasashima

    发明人： Kazuto Maehara ,  Keisuke Ihara ,  Hirotaka Shimosaka ,  Michio Inoue ,  Atsuki Kasashima

    IPC分类号： A63B37/00 ,  A63B37/14

    CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0016 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/008 ,  A63B37/0083 ,  A63B37/0084 ,  A63B37/0089 ,  A63B37/009 ,  A63B37/0096 ,  A63B37/0062 ,  A63B37/0064

    摘要： A golf ball having a plurality of dimples on its surface, the dimples including dimples which are different in diameter and/or depth, the total number of dimples is 392 to 432, and the golf ball has a percent dimple surface area occupation of 77 to 82%, a percent dimple volume occupation of 0.85 to 1.2%, an average dimple diameter of 2.5 to 4.5 mm (0.098 to 0.177 inches), an average dimple depth of 0.12 to 0.18 mm (0.005 to 0.007 inches), an average dimple V.sub.0 value of 0.4 to 0.6, and a dimple edge angle of 4.0 to 17.0 degrees, where CL is a lift coefficient and CD is a drag coefficient, CL is in the range of 0.140 to 0.190, CD is in the range of 0.21 to 0.255, and CL/CD is in the range of 0.640 to 0.730 when the ball is in flight at a velocity of 65 m/s and a spin rate of 42 rps.

    摘要翻译： 一种在其表面上具有多个凹坑的高尔夫球，凹坑包括直径不同和/或深度不同的凹坑，凹坑的总数为392至432，高尔夫球的百分比凹坑表面积占77至 82％，凹坑体积百分比为0.85〜1.2％，平均凹坑直径为2.5〜4.5mm（0.098〜0.177英寸），平均凹坑深度为0.12〜0.18mm（0.005〜0.007英寸），平均凹坑V0 值为0.4〜0.6，凹坑边角为4.0〜17.0度，其中CL为升力系数，CD为阻力系数，CL为0.140〜0.190，CD为0.21〜0.255的范围， 当球以65m / s的速度和42rps的旋转速度飞行时，CL / CD在0.640至0.730的范围内。

    Golf ball
    3.
    发明授权
    Golf ball 失效
    高尔夫球

    公开(公告)号：US5911639A

    公开(公告)日：1999-06-15

    申请号：US994992

    申请日：1997-12-19

    申请人： Atsuki Kasashima ,  Keisuke Ihara ,  Hirotaka Shimosaka ,  Kazuto Maehara ,  Michio Inoue

    发明人： Atsuki Kasashima ,  Keisuke Ihara ,  Hirotaka Shimosaka ,  Kazuto Maehara ,  Michio Inoue

    IPC分类号： A63B37/00 ,  A63B37/12 ,  A63B37/14

    CPC分类号： A63B37/0004 ,  A63B37/0003 ,  A63B37/0007 ,  A63B37/0016 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0031 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0074

    摘要： A two-piece solid golf ball comprising; a solid core formed of a rubber and a cover formed of an ionomer resin, the solid core has a diameter in the range of 35 to 41 mm and a hardness corresponding to distortion of 2.0 to 4.0 mm under applied load of 100 kg, the cover has a spherical surface, a Shore D hardness in the range of 40 to 70 and a gage in the range of 0.5 to 3 mm, and the spherical surface is formed of a plurality of dimples wherein, the dimples have a depth in the range of 0.08 to 0.15 mm and an average V.sub.O value for all the dimples is 0.5 to 0.9 where V.sub.O is the volume of a dimple space below a plane circumscribed by the dimple edge divided by the volume of a cylinder whose bottom is the plane and whose height is the maximum depth of the dimple from the bottom, and a percent dimple volume Vr given by the following equation is in the range of 0.75 to 1.15%: ##EQU1## where, Vs is in the sum of the volumes of dimples spaces each below a circular plane circumscribed by the dimple edge and R is the ball radius.

    摘要翻译： 一种两件式固体高尔夫球，包括： 由橡胶形成的固体芯和由离聚物树脂形成的覆盖物，实心芯的直径在35至41mm的范围内，硬度在100kg的施加载荷下对应于2.0至4.0mm的变形，盖 具有球形表面，肖氏D硬度在40至70范围内，量具在0.5至3mm范围内，并且球形表面由多个凹坑形成，其中凹坑的深度在 0.08〜0.15mm，所有凹坑的平均VO值为0.5〜0.9，其中，VO是由凹坑边界除外的平面下面的凹坑空间的体积除以其底部为平面且高度为 从底部开始的凹坑的最大深度和由以下等式给出的凹坑体积Vr的百分比在0.75至1.15％的范围内：其中，Vs是每个圆形平面外围的凹坑空间的体积之和 通过凹坑边缘，R是球半径。

    Golf ball
    4.
    发明授权
    Golf ball 失效
    高尔夫球

    公开(公告)号：US06595876B2

    公开(公告)日：2003-07-22

    申请号：US09776690

    申请日：2001-02-06

    申请人： Atsuki Kasashima ,  Keisuke Ihara ,  Kazuto Maehara

    发明人： Atsuki Kasashima ,  Keisuke Ihara ,  Kazuto Maehara

    IPC分类号： A63B3714

    CPC分类号： A63B37/0003 ,  A63B37/0006

    摘要： Disclosed is a golf ball including: a plurality of dimples arranged overall on the spherical surface of the golf ball by assuming the spherical surface of the golf ball as a spherical octahedron and using, as dimple arrangement units, eight spherical triangles constituting the spherical octahedron, on each of which a specific number of the dimples are arranged. In this golf ball, at least the four dimples are arranged on each of three sides of the spherical triangle; there is no great circle with which none of the dimples intersects; and the total number of the dimples is in a range of 380 to 450.

    摘要翻译： 公开了一种高尔夫球，包括：通过将高尔夫球的球形表面假定为球形八面体并使用构成球形八面体的八个球形三角形作为凹坑布置单元，整体布置在高尔夫球的球形表面上的多个凹坑， 其中每个具有特定数量的凹坑被布置。 在该高尔夫球中，至少四个凹坑布置在球形三角形的三个侧面中的每一侧上; 没有一个没有一个凹坑相交的大圈子; 并且凹坑的总数在380至450的范围内。

    Golf ball
    5.
    发明授权
    Golf ball 有权
    高尔夫球

    公开(公告)号：US06454668B2

    公开(公告)日：2002-09-24

    申请号：US09739328

    申请日：2000-12-19

    申请人： Atsuki Kasashima ,  Keisuke Ihara ,  Kazuto Maehara

    发明人： Atsuki Kasashima ,  Keisuke Ihara ,  Kazuto Maehara

    IPC分类号： A63B3712

    CPC分类号： A63B37/0004 ,  A63B37/0012 ,  A63B37/0015 ,  A63B37/0016 ,  A63B37/0019 ,  A63B37/002

    摘要： In a dimpled golf ball, the parameters of dimples are optimized to improve the aerodynamic performance of the ball and thus increase its flight distance. The dimples have a planar shape which is circular, and are of at least three types of mutually differing diameter. At least one of the types of dimples has a cross-sectional shape differing from that of the other types. One of the dimple types may have a cross-sectional shape defined by the union of at least two concave portions of differing slope.

    摘要翻译： 在一个凹陷的高尔夫球中，凹坑的参数被优化以改善球的空气动力学性能，从而增加其飞行距离。 凹坑具有圆形的平面形状，并且具有至少三种相互不同直径的类型。 凹坑类型中的至少一种具有与其它类型不同的横截面形状。 凹坑类型之一可以具有由不同斜率的至少两个凹部的联合限定的横截面形状。

    Golf ball and method of evaluating golf ball
    6.
    发明授权
    Golf ball and method of evaluating golf ball 有权

    公开(公告)号：US06435988B1

    公开(公告)日：2002-08-20

    申请号：US09774705

    申请日：2001-02-01

    申请人： Kazuto Maehara ,  Keisuke Ihara ,  Atsuki Kasashima

    发明人： Kazuto Maehara ,  Keisuke Ihara ,  Atsuki Kasashima

    IPC分类号： A63B3712

    摘要： A golf ball includes a large number of two types pr more dimples different in diameter and/or depth, which are arranged on the surface of the golf ball; wherein an EAstdev value of the golf ball is in a range of 2 or less, the EAstdev value being expressed by the following equations: EA ⁡ ( α j ) = ∑ i = 1 N ⁢ [ S ⁢   ⁢ i × sin ⁢   ⁢ ( θ i ) ] EAstdev = N ⁢ ∑ j = 1 N ⁢ [ EA ⁡ ( α ⁢   j ) ] 2 - ∑ j = 1 N ⁢ [ EA ⁡ ( α j ) ] 2 N ⁢   ⁢ ( N - 1 )

    Dimpled golf ball
    8.
    发明授权
    Dimpled golf ball 有权
    肮脏的高尔夫球

    公开(公告)号：US06368238B1

    公开(公告)日：2002-04-09

    申请号：US09487777

    申请日：2000-01-20

    申请人： Atsuki Kasashima ,  Kazuto Maehara ,  Keisuke Ihara

    发明人： Atsuki Kasashima ,  Kazuto Maehara ,  Keisuke Ihara

    IPC分类号： A63B3714

    CPC分类号： A63B37/14 ,  A63B37/0012 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0073 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/0076

    摘要： In a golf ball having a plurality of dimples (12) formed in its surface, each dimple prior to paint coating consists of a major concave surface portion (20) circumscribed by a peripheral convex surface portion (22). The peripheral convex surface portion connects to the major concave surface portion at a point of inflection (30) which is located at a distance of 10-50% of the dimple depth (d) from the edge (26) of the peripheral convex surface portion.

    摘要翻译： 在具有形成在其表面上的多个凹坑（12）的高尔夫球中，涂料涂覆之前的每个凹坑由外周凸表面部分（22）外接的主凹表面部分（20）组成。 外周凸表面部分在弯曲点（30）处连接到主凹面部分，该拐点位于凹部深度（d）的10-50％距离周边凸面部分的边缘（26）的距离处 。