公开(公告)号：US20100035704A1

公开(公告)日：2010-02-11

申请号：US12490847

申请日：2009-06-24

申请人： Hirotaka NAKAMURA ,  Keiji Ohama ,  Kazuhiko Isogawa

发明人： Hirotaka NAKAMURA ,  Keiji Ohama ,  Kazuhiko Isogawa

IPC分类号： A63B37/02

CPC分类号： A63B37/02 ,  A63B37/0003 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0064

摘要： A golf ball 2 has a core 4, an inner cover 6 positioned outside this core 4 and an outer cover 8 positioned outside the inner cover 6. The core 4 has a spherical center 10 and a mid layer 12 positioned outside this center 10. The center 10 is formed by crosslinking a rubber composition. The mid layer 12 is formed by crosslinking a rubber composition. The inner cover 6 is made of a thermoplastic resin composition. The outer cover 8 is made of a thermoplastic resin composition. The center 10 has a diameter of 1 mm or greater and 15 mm or less. The center 10 has a central point having JIS-C hardness H1 of 20 or greater and 50 or less. A difference (H4−H3) between a hardness H4 of a surface of the core and a hardness H3 of an innermost part of the mid layer is equal to or greater than 10. A hardness H5 of the inner cover is smaller than a hardness H6 of the outer cover.

摘要翻译： 高尔夫球2具有芯部4，位于该芯部4外部的内部盖6和位于内部盖6外侧的外部盖8.芯部4具有球形中心10和位于该中心10外部的中间层12。 中心10通过交联橡胶组合物形成。 中间层12通过交联橡胶组合物形成。 内盖6由热塑性树脂组合物制成。 外盖8由热塑性树脂组合物制成。 中心部10的直径为1mm以上且15mm以下。 中心部10具有JIS-C硬度H1为20以上且50以下的中心点。 芯的表面的硬度H4与中层的最内部的硬度H3之间的差（H4-H3）等于或大于10.内盖的硬度H5小于硬度H6 的外盖。

公开(公告)号：US20080045360A1

公开(公告)日：2008-02-21

申请号：US11822517

申请日：2007-07-06

申请人： Keiji Ohama ,  Kazuhiko Isogawa ,  Kazuya Kamino

发明人： Keiji Ohama ,  Kazuhiko Isogawa ,  Kazuya Kamino

IPC分类号： A63B37/14

CPC分类号： A63B37/0003 ,  A63B37/0004 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0074 ,  A63B37/0075

摘要： Golf ball 2 has a core 4, a cover 6 and numerous dimples 8. The cover 6 has a thickness of less than 3.0 mm and a hardness H4 of equal to or greater than 90. A difference (H2−H1) of a surface hardness H2 of the core 4 and a central hardness H1 of the core 4 is 10 or greater and 25 or less. A difference (H4−H1) of the hardness H4 of the cover 6 and a surface hardness H1 of the core 4 is equal to or greater than 25. A difference (H4−H2) of the hardness H4 of the cover 6 and a surface hardness H2 of the core 4 is 10 or greater and 20 or less. Provided that mean diameter of all the dimples 8 is Da, a ratio (N1/N) of number N1 of adjacent dimple pairs having a pitch of (Da/4) or less to total number N of the dimples 8 is equal to or greater than 2.70. A ratio (N2/N1) of number N2 of adjacent dimple pairs having a pitch of (Da/20) or less to the number N1 is equal to or greater than 0.50.

公开(公告)号：US08986138B2

公开(公告)日：2015-03-24

申请号：US12490847

申请日：2009-06-24

申请人： Hirotaka Nakamura ,  Keiji Ohama ,  Kazuhiko Isogawa

发明人： Hirotaka Nakamura ,  Keiji Ohama ,  Kazuhiko Isogawa

IPC分类号： A63B37/06 ,  A63B37/02 ,  A63B37/00

CPC分类号： A63B37/02 ,  A63B37/0003 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0064

摘要： A golf ball 2 has a core 4, an inner cover 6 positioned outside this core 4 and an outer cover 8 positioned outside the inner cover 6. The core 4 has a spherical center 10 and a mid layer 12 positioned outside this center 10. The center 10 is formed by crosslinking a rubber composition. The mid layer 12 is formed by crosslinking a rubber composition. The inner cover 6 is made of a thermoplastic resin composition. The outer cover 8 is made of a thermoplastic resin composition. The center 10 has a diameter of 1 mm or greater and 15 mm or less. The center 10 has a central point having JIS-C hardness H1 of 20 or greater and 50 or less. A difference (H4−H3) between a hardness H4 of a surface of the core and a hardness H3 of an innermost part of the mid layer is equal to or greater than 10. A hardness H5 of the inner cover is smaller than a hardness H6 of the outer cover.

摘要翻译： 高尔夫球2具有芯部4，位于该芯部4外部的内部盖6和位于内部盖6外侧的外部盖8.芯部4具有球形中心10和位于该中心10外部的中间层12。 中心10通过交联橡胶组合物形成。 中间层12通过交联橡胶组合物形成。 内盖6由热塑性树脂组合物制成。 外盖8由热塑性树脂组合物制成。 中心部10的直径为1mm以上且15mm以下。 中心部10具有JIS-C硬度H1为20以上且50以下的中心点。 芯的表面的硬度H4与中层的最内部的硬度H3之间的差（H4-H3）等于或大于10.内盖的硬度H5小于硬度H6 的外盖。

公开(公告)号：US20110201454A1

公开(公告)日：2011-08-18

申请号：US13093578

申请日：2011-04-25

申请人： Kazuhiko ISOGAWA ,  Keiji Ohama

发明人： Kazuhiko ISOGAWA ,  Keiji Ohama

IPC分类号： A63B37/06 ,  A63B37/00

CPC分类号： A63B37/0045 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0076

摘要： A golf ball having a spherical core, a mid layer covering this core, a reinforcing layer covering this mid layer, and a cover covering this reinforcing layer, wherein the base polymer of the mid layer includes a styrene block-containing thermoplastic elastomer and an ionomer resin; the mid layer has a hardness as measured with a Shore D type hardness scale of equal to or less than 54; the mid layer has a thickness of 0.5 mm or greater and 1.6 mm or less; and the base polymer of the reinforcing layer is a reaction product between carboxyl group-containing polyurethane and polycarbodiimide. The principal component of the base polymer of the cover is an ionomer resin. The cover has a hardness as measured with a Shore D type hardness scale hardness of equal to or greater than 55 and the cover has a thickness of equal to or less than 1.2 mm.

摘要翻译： 具有球形芯的高尔夫球，覆盖该芯的中间层，覆盖该中间层的加强层和覆盖该加强层的盖，其中中间层的基础聚合物包括含苯乙烯嵌段的热塑性弹性体和离聚物 树脂; 中间层具有以等于或小于54的肖氏D型硬度标度测量的硬度; 中间层的厚度为0.5mm以上且1.6mm以下; 并且增强层的基础聚合物是含羧基的聚氨酯和聚碳化二亚胺之间的反应产物。 覆盖物的基础聚合物的主要成分是离聚物树脂。 该盖具有肖氏D型硬度刻度硬度等于或大于55而测量的硬度，并且该盖具有等于或小于1.2mm的厚度。

公开(公告)号：US20080039236A1

公开(公告)日：2008-02-14

申请号：US11808685

申请日：2007-06-12

申请人： Kazuhiko Isogawa ,  Keiji Ohama ,  Takahiro Sajima

发明人： Kazuhiko Isogawa ,  Keiji Ohama ,  Takahiro Sajima

IPC分类号： A63B37/14

CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0075 ,  A63B37/0086

摘要： Golf ball 2 has a center 5, a mid layer 6, a cover 4 and numerous dimples 8. A product Pm of a volume Vm multiplied by a flexural rigidity Fm in the mid layer 6 and a product Pc of a volume Vc multiplied by a flexural rigidity Fc in the cover meet the following formulae (I) and (II). 1400

摘要翻译： 高尔夫球2具有中心5，中间层6，盖4和多个凹坑8.体积Vm乘以中间层6中的弯曲刚度Fm的乘积Pm和体积Vc乘以 盖中的抗弯刚度Fc符合下列公式（I）和（II）。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 1400 <（Pm + Pc）<2000（I）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 5.0 <（Pc / Pm）<7.6（II）<？in-line-formula description = 如果所有凹坑8的平均直径为Da，则间距为（Da / 4）以下的相邻凹坑对的数N1的比（N1 / N）〜 凹坑8的总数N等于或大于2.70。 具有（Da / 20）以下间距的相邻凹坑对的数量N2与N1的比率（N2 / N1）等于或大于0.50。

公开(公告)号：US20060211517A1

公开(公告)日：2006-09-21

申请号：US11362127

申请日：2006-02-27

申请人： Kazuhiko Isogawa ,  Keiji Ohama

发明人： Kazuhiko Isogawa ,  Keiji Ohama

IPC分类号： A63B37/04 ,  A63B37/14

CPC分类号： A63B37/0045 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0076

摘要： Golf ball 2 has a spherical core 4, a mid layer 6 covering this core 4, a reinforcing layer 8 covering this mid layer 6, and a cover 10 covering this reinforcing layer 8. Base polymer of the mid layer 6 includes a styrene block-containing thermoplastic elastomer and an ionomer resin. The mid layer 6 has a hardness as measured with a Shore D type hardness scale of equal to or less than 54. The mid layer 6 has a thickness of 0.5 mm or greater and 1.6 mm or less. Base polymer of the reinforcing layer 8 is a reaction product between carboxyl group-containing polyurethane and polycarbodiimide. Principal component of the base polymer of the cover 10 is an ionomer resin. The cover 10 has a hardness as measured with a Shore D type hardness scale hardness of equal to or greater than 55. The cover 10 has a thickness of equal to or less than 1.2 mm.

摘要翻译： 高尔夫球2具有球形芯4，覆盖该芯4的中间层6，覆盖该中间层6的加强层8和覆盖该加强层8的盖10。 中间层6的基础聚合物包括含苯乙烯嵌段的热塑性弹性体和离聚物树脂。 中间层6具有以肖氏D型硬度等级等于或小于54测量的硬度。中间层6的厚度为0.5mm以上且1.6mm以下。 增强层8的基础聚合物是含羧基的聚氨酯和聚碳化二亚胺之间的反应产物。 盖10的基础聚合物的主要成分是离聚物树脂。 盖10具有以肖氏D型硬度标度硬度等于或大于55测量的硬度。盖10的厚度等于或小于1.2mm。

公开(公告)号：US20070026972A1

公开(公告)日：2007-02-01

申请号：US11491153

申请日：2006-07-24

申请人： Kazuhiko Isogawa ,  Keiji Ohama

发明人： Kazuhiko Isogawa ,  Keiji Ohama

IPC分类号： A63B37/14

CPC分类号： A63B37/12 ,  A63B37/0003 ,  A63B37/0006 ,  A63B37/0024 ,  A63B37/0031 ,  A63B2209/00

摘要： The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover layer comprises a 3-dimensional shaped metal oxide having at least three needle-shaped parts. Blending the 3-dimensional shaped metal oxide into the cover layer enhances the rigidity of the resultant cover for the hardness thereof. In the case that the cover layer has the slab hardness of 57D or more in shore D hardness, this property can be used to enhance the resilience without lowering the shot feeling. On the other hand, in the case that the cover layer has the slab hardness less than 57D in shore D hardness, this property can be used to enhance the resilience without lowering the spin rate.

摘要翻译： 本发明提供一种高尔夫球，其包括芯和覆盖芯的盖，其中覆盖层包括具有至少三个针状部分的三维成形金属氧化物。 将三维形状的金属氧化物混合到覆盖层中，由此提高了所得到的盖的硬度的刚性。 在覆盖层的硬度为S D的硬度为57D以上的情况下，能够提高回弹性而不降低拍摄感。 另一方面，在覆盖层的肖氏D硬度具有小于57D的板坯硬度的情况下，该性能可以用于提高回弹性而不降低旋转速率。

公开(公告)号：US07396301B2

公开(公告)日：2008-07-08

申请号：US11508955

申请日：2006-08-24

申请人： Keiji Ohama ,  Kazuhiko Isogawa

发明人： Keiji Ohama ,  Kazuhiko Isogawa

IPC分类号： A63B37/06

CPC分类号： A63B37/0003 ,  A63B37/0006 ,  A63B37/0039 ,  A63B37/0043 ,  A63B2209/00

摘要： The present invention provides a golf ball comprising a core, an intermediate layer covering the core, and a cover covering the intermediate layer, wherein the intermediate layer contains a 3-dimensional shaped metal oxide having at least three needle-shaped parts. Blending the 3-dimensional shaped metal oxide into the intermediate layer enhances the rigidity of the resultant intermediate layer and the hardness thereof. Making use of this property, it is possible to improve the durability, the flight performance and the shot feeling of the golf ball.

摘要翻译： 本发明提供了一种高尔夫球，其包括芯，覆盖芯的中间层和覆盖中间层的盖，其中中间层包含具有至少三个针状部分的三维成形金属氧化物。 将三维形状的金属氧化物混合到中间层中增强了所得中间层的刚性及其硬度。 利用该属性，可以提高高尔夫球的耐久性，飞行性能和射击感。

公开(公告)号：US20070173350A1

公开(公告)日：2007-07-26

申请号：US11647199

申请日：2006-12-29

申请人： Keiji Ohama ,  Kazuhiko Isogawa ,  Takahiro Sajima

发明人： Keiji Ohama ,  Kazuhiko Isogawa ,  Takahiro Sajima

IPC分类号： A63B37/04 ,  A63B37/14 ,  A63B37/12

CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0075 ,  A63B2209/00

摘要： Golf ball 2 has a center 8, mid layer 10 and a cover 6. The mid layer 10 is formed by a resin composition containing a metal oxide with a three-dimensional shape. A D hardness of the mid layer 10 is 32 or greater and 39 or less. A ratio of an amount of compressive deformation C1 of the center 8 to an amount of compressive deformation C2 of a core 4, (C1/C2), is less than 1.09. A ratio of the amount of compressive deformation C1 to an amount of compressive deformation C3, (C1/C3), is equal to or greater than 1.08. This golf ball has three or more kinds of dimples 12, each having a different diameter. Total number of the dimples 12 is equal to or greater than 300. A ratio Pn of the number of the dimples 12 with a diameter of equal to or greater than 3.40 mm to the total number of the dimples is equal to or greater than 90%. The number of kinds of the dimples having a diameter of equal to or greater than 3.40 mm in a low latitude region is greater than that in a middle region and a high latitude region.

摘要翻译： 高尔夫球2具有中心8，中间层10和盖6。 中间层10由含有三维形状的金属氧化物的树脂组合物形成。 中间层10的D硬度为32以上且39以下。 中心8的压缩变形量C 1与芯部4的压缩变形量C 2（C 1 / C 2）的比例小于1.09。 压缩变形量C 1与压缩变形量C 3（C 1 / C 3）的比例等于或大于1.08。 这种高尔夫球具有三种或更多种具有不同直径的凹坑12。 凹坑12的总数等于或大于300.相对于凹坑总数，直径等于或大于3.40mm的凹坑12的数量的比Pn等于或大于90％ 。 在低纬度区域中具有等于或大于3.40mm的直径的凹坑的种类数量大于中间区域和高纬度区域中的凹坑的种类数量。

公开(公告)号：US20050202902A1

公开(公告)日：2005-09-15

申请号：US11037070

申请日：2005-01-19

申请人： Keiji Ohama ,  Koichi Fujisawa ,  Kazuhiko Isogawa

发明人： Keiji Ohama ,  Koichi Fujisawa ,  Kazuhiko Isogawa

IPC分类号： A63B37/00 ,  A63B37/04

CPC分类号： A63B37/0003 ,  A63B37/0023 ,  A63B37/003 ,  A63B37/0031 ,  A63B37/0074 ,  A63B37/0076 ,  A63B37/0078 ,  A63B37/04

摘要： The present invention provides a solid golf ball, of which flight performance is improved, while maintaining good durability and good shot feel. The present invention relates to a solid golf ball comprising at least one layer of a core, and at least one layer of a cover formed on the core, wherein the core is formed from a rubber composition comprising a base rubber, a co-crosslinking agent, an organic peroxide and an organic sulfur compound, the base rubber comprises a polybutadiene synthesized using rare-earth element-containing catalyst, and the organic sulfur compound comprises a polysulfide compound having bromo group.

摘要翻译： 本发明提供一种固体高尔夫球，其飞行性能得到改善，同时保持良好的耐久性和良好的射击感。 本发明涉及一种固体高尔夫球，其包括至少一层芯，以及形成在芯上的至少一层盖，其中所述芯由橡胶组合物形成，所述橡胶组合物包含基础橡胶，共交联剂 有机过氧化物和有机硫化合物，所述基础橡胶包括使用含稀土元素的催化剂合成的聚丁二烯，所述有机硫化合物包含具有溴基的多硫化合物。