公开(公告)号：US20050101412A1

公开(公告)日：2005-05-12

申请号：US10933303

申请日：2004-09-03

申请人： Takahiro Sajima ,  Seiichiro Endo

发明人： Takahiro Sajima ,  Seiichiro Endo

IPC分类号： A63B37/00 ,  A63B37/12

CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021

摘要： A golf ball 2 has dimples A having a diameter of 4.65 mm, dimples B having a diameter of 4.45 mm, dimples C having a diameter of 4.25 mm, dimples D having a diameter of 4.05 mm, dimples E having a diameter of 3.95 mm, dimples F having a diameter of 2.80 mm, and dimples G having a diameter of 2.65 mm. When all the dimples 8 are arranged in decreasing order of the diameter Di, the mean diameter of the dimples 8 ranking in the top 10% is represented by Dx (mm), and the mean diameter of the dimples 8 ranking in the bottom 10% is represented by Dn (mm). Dx/Dn is equal to or greater than 1.30. Standard deviation η of diameters of all the dimples 8 is equal to or less than 0.52. Mean value of the diameters of all the dimples 8 is equal to or greater than 4.00 mm.

摘要翻译： 高尔夫球2具有直径4.65mm的凹坑A，直径4.45mm的凹坑B，直径4.25mm的凹坑C，直径4.05mm的凹坑D，直径3.95mm的凹坑E， 凹坑F的直径为2.80mm，凹坑G的直径为2.65mm。 当所有的凹坑8以直径Di的降序排列时，排列在前10％的凹坑8的平均直径由Dx（mm）表示，凹坑8的平均直径在底部10％ 由Dn（mm）表示。 Dx / Dn等于或大于1.30。 所有凹坑8的直径的标准偏差eta等于或小于0.52。 所有凹坑8的直径的平均值等于或大于4.00mm。

公开(公告)号：US06776730B2

公开(公告)日：2004-08-17

申请号：US10305148

申请日：2002-11-27

申请人： Keiji Moriyama ,  Takahiro Sajima

发明人： Keiji Moriyama ,  Takahiro Sajima

IPC分类号： A63B3714

CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/008 ,  A63B37/0083 ,  A63B37/0087

摘要： A golf ball has a large number of dimples (A to D) on a surface thereof. A surface area occupation ratio Y of the dimples in the golf ball is 0.80 to 0.90. A mean curvature R to be a mean value of a curvature r in the sectional shape of the dimple is 16 mm or more. A total volume V of the dimples is 300 mm3 to 700 mm3. A mean occupation ratio y to be a value obtained by dividing the surface area occupation ratio Y by a total number N of the dimples is 0.0022 or more. A sum X of a contour length x of the dimple and the surface area occupation ratio Y satisfy a relationship indicated by an expression (I): X≦3882·Y+1495  (I).

摘要翻译： 高尔夫球在其表面上具有大量凹坑（A至D）。 高尔夫球中的凹坑的表面积占有率Y为0.80〜0.90。 作为凹坑的截面形状的曲率r的平均值的平均曲率R为16mm以上。 凹坑的总体积V为300mm 3至700mm 3。 通过将表面积占有率Y除以凹坑的总数N而获得的值的平均占有率y为0.0022以上。 凹坑的轮廓长度x和表面积占有率Y的和X满足表达式（I）所示的关系：

公开(公告)号：US06530850B2

公开(公告)日：2003-03-11

申请号：US09874201

申请日：2001-06-06

申请人： Takahiro Sajima

发明人： Takahiro Sajima

IPC分类号： A63B3714

CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0074 ,  A63B37/008

摘要： A surface is comparted into eight spherical regular triangles (T1 to T8) through twelve comparting lines formed by projecting, onto the surface, twelve sides of a regular octahedron inscribed on the surface. Dimples are arranged in the spherical regular triangles (T1 to T8) so as not to intersect any of the comparting lines. Consequently, three great circle paths (L1), (L2) and (L3) are formed. Each of four spherical regular triangles sharing each of six apexes (P1 to P6) has different dimple pattern from those of three other spherical regular triangles, respectively. In the golf ball, it is possible to prevent dimple effects from being reduced when one of the three great circle paths (L1), (L2) and (L3) is coincident with the highest speed portion.

公开(公告)号：US09345934B2

公开(公告)日：2016-05-24

申请号：US13456412

申请日：2012-04-26

申请人： Takahiro Sajima ,  Hirotaka Nakamura

发明人： Takahiro Sajima ,  Hirotaka Nakamura

IPC分类号： A63B37/06 ,  A63B37/00 ,  C08K5/09

CPC分类号： A63B37/0092 ,  A63B37/0003 ,  A63B37/0022 ,  A63B37/0024 ,  A63B37/0032 ,  A63B37/0033 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/008 ,  A63B37/0083 ,  A63B37/06 ,  C08K5/09 ,  C08K5/098 ,  C08K5/14 ,  C08L21/00

摘要： A golf ball 2 includes a spherical core 4 and a cover 6 covering the core 4 and including an inner cover 8 and an outer cover 10 positioned outside the inner cover 8. The core 4 is obtained by crosslinking a rubber composition. The rubber composition includes a base rubber (a), a co-crosslinking agent (b), a crosslinking initiator (c), and a carboxylate (d). The co-crosslinking agent (b) is: (b1) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms; or (b2) a metal salt of an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms. The amount of the carboxylate (d) is equal to or greater than 1 parts by weight but less than 40 parts by weight per 100 parts by weight of the base rubber (a). A hardness of an innermost layer of the cover is equal to or less than a surface hardness of the core.

摘要翻译： 高尔夫球2包括球形芯4和覆盖芯4的盖6，包括内盖8和位于内盖8外部的外盖10.芯4通过交联橡胶组合物获得。 橡胶组合物包括基础橡胶（a），共交联剂（b），交联引发剂（c）和羧酸酯（d）。 共交联剂（b）是：（b1）具有3-8个碳原子的α，β-不饱和羧酸; 或（b2）具有3-8个碳原子的α，β-不饱和羧酸的金属盐。 相对于100重量份的基础橡胶（a），羧酸酯（d）的量等于或大于1重量份，但小于40重量份。 盖的最内层的硬度等于或小于芯的表面硬度。

公开(公告)号：US09233278B2

公开(公告)日：2016-01-12

申请号：US13439088

申请日：2012-04-04

申请人： Takahiro Sajima ,  Hirotaka Nakamura

发明人： Takahiro Sajima ,  Hirotaka Nakamura

IPC分类号： A63B37/12 ,  A63B37/00

CPC分类号： A63B37/0006 ,  A63B37/0003 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0056 ,  A63B37/0064 ,  A63B37/0075 ,  A63B37/0083

摘要： The surface of a golf ball 2 is divided by four comparting great circles CG into six spherical quadrangles Ss and eight spherical triangles St. The eight spherical triangles St are composed of four first spherical triangles St1 and four second spherical triangles St2. Dimple patterns of the six spherical quadrangles Ss are the same. Dimple patterns of the four first spherical triangles St1 are the same. Dimple patterns of the four second spherical triangles St2 are the same. The dimple pattern of each first spherical triangle St1 is different from the dimple pattern of each second spherical triangle St2. The comparting great circles CG are obtained by projecting the 24 sides of a cuboctahedron inscribed in a phantom sphere of the golf ball 2 on the surface of the phantom sphere.

摘要翻译： 高尔夫球2的表面被四个分开的大圆CG分成六个球形四边形S和八个球形三角形St.八个球形三角形St由四个第一球形三角形St1和四个第二球形三角形St2组成。 六个球形四边形Ss的凹凸图案是相同的。 四个第一球形三角形St1的三维图案是相同的。 四个第二球形三角形St2的三维图案是相同的。 每个第一球形三角形St1的凹坑图案与每个第二球形三角形St2的凹坑图案不同。 通过将雕刻在高尔夫球2的幻影球上的立方八面体的24个侧面投射在幻影球的表面上，获得相配的大圆CG。

公开(公告)号：US08951147B2

公开(公告)日：2015-02-10

申请号：US13430764

申请日：2012-03-27

申请人： Satoko Okabe ,  Takahiro Sajima ,  Yoshiko Matsuyama

发明人： Satoko Okabe ,  Takahiro Sajima ,  Yoshiko Matsuyama

IPC分类号： A63B37/06 ,  A63B37/00

CPC分类号： A63B37/0003 ,  A63B37/0027 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0038 ,  A63B37/0039 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0048 ,  A63B37/0049 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0076 ,  A63B37/0087 ,  A63B37/0092 ,  A63B37/0096

摘要： An object of the present invention is to provide a golf ball having an improved controllability and shot feeling while maintaining a flight distance on driver shots. The present invention provides a golf ball having a core, an intermediate layer disposed around the core, and a cover disposed around the intermediate layer, wherein the core has a center and an envelope layer disposed around the center, and has a specific hardness distribution, and the intermediate layer is formed from an intermediate layer composition comprising, as a resin component, (A) a modified polyester elastomer and (B) a binary ionomer resin, and having a flexural modulus ranging from 150 MPa to 450 MPa, a maximum loss factor (tan δ) between −20° C. and 0° C. of 0.08 or less, a repulsive modulus of 55% or more, and a slab hardness ranging from 60 to 90 in JIS-hardness.

摘要翻译： 本发明的目的是提供一种具有改进的可控性和拍摄感觉的高尔夫球，同时保持驾驶员镜头上的飞行距离。 本发明提供一种高尔夫球，其具有芯部，围绕芯部设置的中间层和围绕中间层设置的盖，其中，芯部具有围绕中心设置的中心和包层，并且具有特定的硬度分布， 中间层由包含（A）改性聚酯弹性体和（B）二元离聚物树脂作为树脂成分的中间层组合物形成，并且弯曲弹性模量为150MPa至450MPa，最大损耗 -20℃和0℃之间的因子（tanδ）为0.08以下，斥力弹性模量为55％以上，板厚硬度为60〜90。

公开(公告)号：US08202177B2

公开(公告)日：2012-06-19

申请号：US12345739

申请日：2008-12-30

申请人： Hyoungchol Kim ,  Takahiro Sajima ,  Kaname Yamada

发明人： Hyoungchol Kim ,  Takahiro Sajima ,  Kaname Yamada

IPC分类号： A63B37/06

CPC分类号： A63B45/00 ,  A63B37/0003 ,  A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0022 ,  A63B37/0033 ,  A63B37/0035 ,  A63B37/0053 ,  A63B37/0064 ,  A63B37/0073 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/008 ,  A63B37/0083 ,  A63B47/008 ,  A63B2225/02

摘要： Based on a surface shape appearing at a predetermined point moment by moment during rotation of a golf ball having numerous dimples on its surface, a data constellation regarding a parameter dependent on a surface shape of the golf ball is calculated. Preferably, the parameter is a distance between an axis of the rotation and the surface of the golf ball. Another preferable parameter is a volume of space between a surface of a phantom sphere and the surface of the golf ball. Based on a maximum value and a minimum value of the data constellation, a fluctuation range is calculated. By dividing the fluctuation range by a total volume of the dimples, an evaluation value is calculated. This value is calculated for each of PH rotation and POP rotation.

摘要翻译： 基于在其表面上具有多个凹坑的高尔夫球的旋转期间出现在预定点时刻的表面形状，计算关于取决于高尔夫球的表面形状的参数的数据星座。 优选地，参数是旋转轴线和高尔夫球表面之间的距离。 另一个优选的参数是幻影球体的表面和高尔夫球表面之间的空间体积。 基于数据星座的最大值和最小值，计算出波动范围。 通过将波动范围除以凹坑的总体积，计算评价值。 每个PH旋转和POP旋转计算该值。

公开(公告)号：US07718107B2

公开(公告)日：2010-05-18

申请号：US10849824

申请日：2004-05-21

申请人： Seiichiro Endo ,  Takahiro Sajima

发明人： Seiichiro Endo ,  Takahiro Sajima

IPC分类号： B29C45/14 ,  B29C45/00

CPC分类号： B29C45/34 ,  B29C45/14073 ,  B29C45/14819 ,  B29L2031/545 ,  Y10S425/812

摘要： A mold (1) includes an upper mold half (U) and a lower mold half (L). The mold (1) includes a gate (G), a pole vent pin (P), a support pin (S) and an intermediate vent pin (M). The support pin (S) has a latitude (θs) of 45 degrees to 85 degrees. Each of the upper mold half (U) and the lower mold half (L) has at least three support pins (S). The intermediate vent pin (M) has a latitude (θm) of 45 degrees to 85 degrees. Each of the upper mold half (U) and the lower mold half (L) has at least three intermediate vent pins (M). A difference between the latitude (θm) of the intermediate vent pin (M) and the latitude (θs) of the support pin (S) is equal to or smaller than 15 degrees. A clearance between the intermediate vent pin (M) and a pin hole (13) is 5 μm to 50 μm. By the mold (1), a cover having a thickness of 1.4 mm or less is formed.

摘要翻译： 模具（1）包括上半模（U）和下半模（L）。 模具（1）包括门（G），极孔销（P），支撑销（S）和中间通气销（M）。 支撑销（S）具有45度至85度的纬度（＆amp; s）。 上半模（U）和下半模（L）中的每一个具有至少三个支撑销（S）。 中间通气销（M）的纬度（＆amp; m）为45度至85度。 上半模（U）和下半模（L）中的每一个具有至少三个中间通气销（M）。 中间通气销（M）的纬度（＆amp; m;）和支撑销（S）的纬度（＆amp; s）之间的差值等于或小于15度。 中间通气销（M）与销孔（13）之间的间隙为5μm〜50μm。 通过模具（1）形成厚度为1.4mm以下的盖。

公开(公告)号：US20100052219A1

公开(公告)日：2010-03-04

申请号：US12552114

申请日：2009-09-01

申请人： Takahiro Sajima

发明人： Takahiro Sajima

IPC分类号： B28B1/00 ,  B29C43/02

CPC分类号： B29C43/003 ,  B29C33/005 ,  B29C33/30 ,  B29C33/303 ,  B29C43/027 ,  B29C45/0025 ,  B29L2031/54 ,  B29L2031/545

摘要： A mold 2 includes a pair of mold halves (upper mold half 4 and lower mold half 6). A spherical cavity is formed by mating upper mold half 4 and lower mold half 6. A large number of pimples 10 are provided on the cavity face of the upper mold half 4 and lower mold half 6. The upper mold half 4 and the lower mold half 6 have flat plane 14, protrusions 16 and recesses 18, respectively. Each protrusion 16 projects from the equator Eq. Each recess 18 is depressed from the equator Eq. The protrusion 16 includes a part of the pimple 10. A central angle α between a protrusion (a) and a protrusion (b) adjacent to the protrusion (a) is different from the central angle β between the protrusion (a) and a protrusion (c) adjacent to the protrusion (a). The absolute value of a difference (α−β) is equal to or greater than 10°.

摘要翻译： 模具2包括一对半模（上半模4和下半模6）。 通过配合上半模4和下半模6形成球形腔。在上半模4和下半模6的空腔面上设置有大量的粉刺10.上半模4和下模 半部分别具有平面14，突起16和凹槽18。 每个突起16从赤道Eq。 每个凹部18从赤道等式 突起16包括疙瘩10的一部分。与突起（a）相邻的突起（a）和突起（b）之间的中心角α不同于中心角＆bgr; 在突起（a）和与突起（a）相邻的突起（c）之间。 差值（α＆bgr）的绝对值等于或大于10°。

公开(公告)号：US07621827B2

公开(公告)日：2009-11-24

申请号：US11905800

申请日：2007-10-04

申请人： Takahiro Sajima

发明人： Takahiro Sajima

IPC分类号： A63B37/12

CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0016 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0096

摘要： Golf ball 2 has numerous dimples 8. The surface of the golf ball is divided by comparting lines CM corresponds to edges of a regular icosahedron into eight first spherical regular triangles T1, six second spherical regular triangles T2, and six third spherical regular triangles T3. The first spherical regular triangles T1 do not include the equatorial line EQ. The second spherical regular triangles T2 and the third spherical regular triangles T3 include the equatorial line EQ. The dimple pattern on the first spherical regular triangle T1 is different from the dimple patterns on the second spherical regular triangle T2 and third spherical regular triangle T3. The dimple pattern on the first spherical regular triangle T1 has rotational symmetry and line symmetry. The dimple pattern on the second spherical regular triangle T2 and the third spherical regular triangle T3 has neither a rotational symmetry nor line symmetry. This golf ball 2 does not have any great circle path.

摘要翻译： 高尔夫球2具有多个凹坑8.高尔夫球的表面由对应于常规二十面体的边缘的分割线CM分成八个第一球形正三角形T1，六个第二球形正三角形T2和六个第三球形正三角形T3。 第一球形正三角形T1不包括赤道线EQ。 第二球面正三角形T2和第三球面正三角形T3包括赤道线EQ。 第一球形正三角形T1上的凹坑图案与第二球形正三角形T2和第三球形正三角形T3上的凹坑图案不同。 第一球形正三角形T1上的凹坑图案具有旋转对称性和线对称性。 第二球形正三角形T2和第三球形正三角形T3上的凹坑图案既没有旋转对称也没有线对称。 这个高尔夫球2没有任何伟大的圆路。