公开(公告)号：US20060154749A1

公开(公告)日：2006-07-13

申请号：US11297351

申请日：2005-12-09

申请人： Keiji Ohama ,  Takahiro Sajima

发明人： Keiji Ohama ,  Takahiro Sajima

IPC分类号： A63B37/14

CPC分类号： A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0015 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0075 ,  A63B37/0095

摘要： Golf ball 2 has a core 4, a mid layer 5 and a cover 6. The mid layer 5 has a hardness of 50 or greater and 70 or less, and a thickness of equal to or greater than 0.8 mm. The cover 6 has a hardness of less than 57, and a thickness of less than 1.5 mm. The golf ball 2 has numerous double radius dimples and numerous triple radius dimples on the surface thereof. Proportion of the double radius dimples is 20% or greater and 42% or less, and proportion of the triple radius dimples is equal to or greater than 50%. Ratio (Tm/Tc) of the thickness Tm of the mid layer 5 to the thickness Tc of the cover 6 is 0.5 or greater and 4.0 or less.

摘要翻译： 高尔夫球2具有芯4，中间层5和盖6。 中间层5的硬度为50以上且70以下，厚度为0.8mm以上。 盖6的硬度小于57，厚度小于1.5mm。 高尔夫球2在其表面上具有许多双半径凹坑和许多三重半径凹坑。 双半径凹坑的比例为20％以上且42％以下，三重半径凹坑的比例等于或大于50％。 中间层5的厚度Tm与盖6的厚度Tc的比（Tm / Tc）为0.5以上且4.0以​​下。

公开(公告)号：US20060154748A1

公开(公告)日：2006-07-13

申请号：US11294404

申请日：2005-12-06

申请人： Keiji Ohama ,  Takahiro Sajima

发明人： Keiji Ohama ,  Takahiro Sajima

IPC分类号： A63B37/14

CPC分类号： A63B37/0015 ,  A63B37/0012 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0065 ,  A63B37/0066 ,  A63B37/0075

摘要： Golf ball 2 has a center 8, a mid layer 10, a cover 6 and dimples 12. The mid layer 10 includes a styrene block-containing thermoplastic elastomer having a material hardness of less than 10, and an ethylene-(meth)acrylic acid copolymer-based ionomer resin having a material hardness of 50 or greater and 70 or less. This mid layer 10 has a hardness equal to or less than 50, and a thickness of equal to or less than 1.6 mm. The dimple has: a first side wall face 18 that has a curvature radius R1 which is equal to or greater than a phantom curvature radius Rx; a second side wall face 20 that is positioned to the bottom side than the first side wall 18 face and has a curvature radius R2 which is smaller than the phantom curvature radius Rx; and a bottom face 22 that is positioned to the bottom side than the second side wall face 20 and has a curvature radius R3 which is equal to or greater than the phantom curvature radius Rx.

摘要翻译： 高尔夫球2具有中心8，中间层10，盖6和凹坑12。 中间层10包括材料硬度小于10的含苯乙烯嵌段的热塑性弹性体和材料硬度为50以上且70以下的乙烯 - （甲基）丙烯酸共聚物系离聚物树脂。 该中间层10具有等于或小于50的硬度，等于或小于1.6mm的厚度。 凹坑具有：第一侧壁面18，其具有等于或大于虚拟曲率半径Rx的曲率半径R 1; 位于第一侧壁18的底侧的第二侧壁面20面，并且具有小于虚拟曲率半径Rx的曲率半径R 2; 以及位于第二侧壁面20的底面的底面22，其曲率半径R 3为虚拟曲率半径Rx以上。

公开(公告)号：US20060116220A1

公开(公告)日：2006-06-01

申请号：US11234262

申请日：2005-09-26

申请人： Keiji Ohama ,  Takashi Sasaki ,  Takahiro Sajima

发明人： Keiji Ohama ,  Takashi Sasaki ,  Takahiro Sajima

IPC分类号： A63B37/04

CPC分类号： A63B37/0004 ,  A63B37/0003 ,  A63B37/0006 ,  A63B37/0015 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0075

摘要： Golf ball 2 has a core 4, a mid layer 5 and a cover 6. This mid layer 5 includes 20 parts by weight or greater and 60 parts by weight or less of a styrene block-containing thermoplastic elastomer having a material hardness of less than 10, and 40 parts by weight or greater and 80 parts by weight or less of an ethylene-(meth)acrylic acid copolymer-based ionomer resin having a material hardness of 50 or greater and 70 or less. This mid layer 5 has a hardness of 35 or greater and 50 or less, and a thickness of equal to or less than 1.2 mm. The golf ball 2 has numerous double radius dimples and numerous triple radius dimples on the surface thereof. Proportion of the double radius dimples is 20% or greater and 42% or less, and proportion of triple radius dimples is equal to or greater than 50%.

摘要翻译： 高尔夫球2具有芯部4，中间层5和盖6.该中间层5包括20重量份以上和60重量份以下的材料硬度小于等于或等于3的苯乙烯嵌段的热塑性弹性体 10重量份，40重量份以上80重量份以下的材料硬度为50以上且70以下的乙烯 - （甲基）丙烯酸共聚物系离聚物树脂。 该中间层5的硬度为35以上且50以下，厚度为1.2mm以下。 高尔夫球2在其表面上具有许多双半径凹坑和许多三重半径凹坑。 双半径凹坑的比例为20％以上且42％以下，三重半径凹坑的比例等于或大于50％。

公开(公告)号：US06986718B2

公开(公告)日：2006-01-17

申请号：US10186610

申请日：2002-07-02

申请人： Keiji Ohama ,  Seiichiro Endo

发明人： Keiji Ohama ,  Seiichiro Endo

IPC分类号： A63B37/06

CPC分类号： A63B37/0003 ,  A63B37/0031 ,  A63B37/0062 ,  A63B37/0075 ,  A63B37/0092 ,  A63B37/06 ,  A63B37/12

摘要： The present invention provides a multi-piece solid golf ball, of which flight performance is improved while maintaining excellent durability and good shot feel. The present invention relates to a multi-piece solid golf ball comprising a core, at least one layer of an inner cover formed on the core and an outer cover covering the inner cover, wherein a surface hardness in JIS-C hardness of the core is higher than a center hardness in JIS-C hardness of the core by not less than 25, a hardness in JIS-C hardness of the inner cover is higher than the surface hardness of the core by less than 15, and a hardness in JIS-C hardness of the outer cover is higher than the hardness of the inner cover by not less than 5.

公开(公告)号：US20050107189A1

公开(公告)日：2005-05-19

申请号：US10937331

申请日：2004-09-10

申请人： Keiji Ohama ,  Takahiro Sajima ,  Seiichiro Endo

发明人： Keiji Ohama ,  Takahiro Sajima ,  Seiichiro Endo

IPC分类号： A63B37/00 ,  A63B37/04 ,  A63B37/12 ,  C08F265/04 ,  C08F279/02 ,  C08F285/00 ,  C08L23/08 ,  C08L53/00

CPC分类号： C08F265/04 ,  A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0075 ,  A63B37/12 ,  C08F279/02 ,  C08F285/00 ,  C08L23/0876 ,  C08L53/00 ,  C08F236/06 ,  C08F220/14 ,  C08L2666/06

摘要： A golf ball 2 has a core, a mid layer and a cover. This mid layer comprises 10 parts by weight or greater and 70 parts by weight or less of a thermoplastic elastomer containing a styrene block having a material hardness of less than 10, and 30 parts by weight or greater and 90 parts by weight or less of an ethylene-(meth)acrylic acid copolymer based ionomer resin having a material hardness of 50 or greater and 70 or less. Hardness of this mid layer is less than 40, and the thickness is equal to or less than 1.2 mm. This golf ball 2 has seven kinds of dimples (Ato G), each having a different diameter. When all the dimples are arranged in decreasing order of the diameter Di, ratio (Dx/Dn) of the mean diameter Dx of the dimples ranking in the top 10% to the mean diameter Dn of the dimples ranking in the bottom 10% is equal to or greater than 1.30. Standard deviation η of diameters of all the dimples is equal to or less than 0.52

摘要翻译： 高尔夫球2具有芯，中间层和盖。 该中间层包含10重量份以上和70重量份以下的含有材料硬度小于10的苯乙烯嵌段的热塑性弹性体和30重量份以上且90重量份以下的 乙烯 - （甲基）丙烯酸共聚物基离聚物树脂，其材料硬度为50以上且70以下。 该中间层的硬度小于40，厚度等于或小于1.2mm。 该高尔夫球2具有七种凹坑（Ato G），每种具有不同的直径。 当所有凹坑以直径Di的降序排列时，排列在前10％的凹坑的平均直径Dx与底部10％中的凹坑的平均直径Dn的比（Dx / Dn）相等 至1.30以上。 所有凹坑的直径的标准偏差eta等于或小于0.52

公开(公告)号：US06790148B1

公开(公告)日：2004-09-14

申请号：US09478367

申请日：2000-01-06

申请人： Kazunari Yoshida ,  Keiji Ohama ,  Keiji Moriyama ,  Hidenori Hiraoka ,  Takumi Nishino

发明人： Kazunari Yoshida ,  Keiji Ohama ,  Keiji Moriyama ,  Hidenori Hiraoka ,  Takumi Nishino

IPC分类号： A63B3706

CPC分类号： A63B37/04 ,  A63B37/0003 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0075

摘要： The present invention provides a multi-piece solid golf ball comprising a core consisting of an inner core and an outer core, and one or more layers of cover, wherein the inner core has a diameter of 30 to 39.5 mm and a center hardness in JIS-C hardness of 55 to 70, and is formed from press molded rubber composition comprising polybutadiene, a co-crosslinking agent, an organic peroxide and a filler, and the JIS-C hardness at a distance of 15 mm from the center point of the inner core is higher than the center hardness by 5 to 20; the outer core has a thickness of 0.3 to 2.0 mm and a surface hardness in JIS-C hardness of 75 to 90, and is formed from press molded rubber composition, and the surface hardness of the outer core is higher than the center hardness of the outer core is higher than the center hardness of the inner core by 10 to 35; and the cover contains thermoplastic resin as a base resin, and the outmost cover layer has a thickness of 1.5 to 2.5 mm and a surface hardness in Shore D hardness of 64 to 72.

摘要翻译： 本发明提供一种多片固体高尔夫球，其包括由内芯和外芯组成的芯和一层或多层盖，其中内芯的直径为30至39.5mm，中心硬度为JIS -C硬度为55〜70，由包含聚丁二烯，共交联剂，有机过氧化物和填料的压模橡胶组合物形成，并且在距离中心点15mm的距离处的JIS-C硬度 内芯高于中心硬度5〜20; 外芯的厚度为0.3〜2.0mm，JIS-C硬度的表面硬度为75〜90，由压模橡胶组合物形成，外芯的表面硬度高于 外芯高于内核中心硬度10〜35; 并且所述盖包含作为基础树脂的热塑性树脂，所述最外层的厚度为1.5〜2.5mm，肖氏D硬度的表面硬度为64〜72。

公开(公告)号：US06676540B2

公开(公告)日：2004-01-13

申请号：US09950750

申请日：2001-09-13

申请人： Keiji Ohama

发明人： Keiji Ohama

IPC分类号： A63B3706

CPC分类号： A63B37/0003 ,  A63B37/0031 ,  A63B37/0037 ,  A63B37/0062 ,  A63B37/0075

摘要： The present invention provides a multi-piece solid golf ball having very soft and good shot feel, and excellent rebound characteristics and flight performance, when hit by golfers who swing a golf club at low head speed. The present invention relates to a multi-piece solid golf ball comprising a core consisting of an inner core and an outer core, and at least one layer of cover, wherein the outer core is formed from a rubber composition, and has a Shore D hardness of 20 to 40 and a thickness of not less than 0.3 to less than 1.0 mm, the outmost layer of the cover has a Shore D hardness of more than 62 to less than 70, and a ratio (HC/HO) of the Shore D hardness of the outmost layer of the cover (HC) to that of the outer core (HO) is more than 2.

摘要翻译： 本发明提供了一种具有非常柔软和良好的拍摄感觉的多件式实心高尔夫球，以及当以低头速度摆动高尔夫球杆的高尔夫球手击打时，具有优异的反弹特性和飞行性能。 本发明涉及一种多片固体高尔夫球，其包括由内芯和外芯组成的芯，以及至少一层盖，其中外芯由橡胶组合物形成，并且具有肖氏D硬度 20至40，并且厚度不小于0.3至小于1.0mm，护盖的最外层的肖氏D硬度大于62至小于70，并且肖氏D硬度的比（HC / HO） 盖（HC）与外芯（HO）的最外层大于2。

公开(公告)号：US06659888B2

公开(公告)日：2003-12-09

申请号：US10277728

申请日：2002-10-23

申请人： Seiichiro Endo ,  Keiji Ohama

发明人： Seiichiro Endo ,  Keiji Ohama

IPC分类号： A63B3704

CPC分类号： A63B37/0003 ,  A63B37/0004 ,  A63B37/0018 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0075 ,  A63B37/02

摘要： The present invention provides a three-piece solid golf ball, of which flight distance is improved by accomplishing high launch angle and low spin amount in initial flight performance, while maintaining soft and good shot feel, when hit at low head speed. The present invention relates to a three-piece solid golf ball comprising a center, an intermediate layer and a cover having many dimples on the surface thereof, wherein hardness distribution of the center; hardness distribution between each layer and the contiguous layer in the golf ball; and a ratio of the golf ball surface area occupied by the dimple to the total surface area of the golf ball and the total of a periphery length of the dimple; are adjusted to specified ranges.

摘要翻译： 本发明提供了一种三件式实心高尔夫球，其飞行距离通过在初始飞行性能中实现高发射角度和低旋转量而得到改善，同时在低头速度下击打时保持柔和良好的拍摄感觉。 本发明涉及一种三件式实心高尔夫球，其中，中间层和表面上具有许多凹坑的盖，其中心的硬度分布; 高尔夫球中各层与连续层之间的硬度分布; 以及由凹坑占据的高尔夫球表面积与高尔夫球的总表面积的比值以及凹坑的周长的总和; 被调整到指定范围。

公开(公告)号：US06572493B2

公开(公告)日：2003-06-03

申请号：US09873223

申请日：2001-06-05

申请人： Keiji Ohama

发明人： Keiji Ohama

IPC分类号： A63B3702

CPC分类号： A63B37/04 ,  A63B37/0003 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0066 ,  A63B37/0075

摘要： The present invention provides a multi-piece solid golf ball having very soft and good shot feel, and excellent rebound characteristics and flight performance, when hit by a golfer who swings a golf club at low head speed. The present invention relates to a multi-piece solid golf ball comprising a core consisting of an inner core and an outer core, and at least one layer of cover, wherein the outer core has a Shore D hardness of 25 to 40 and a thickness of 0.3 to 1.0 mm, the core has a deformation amount of 3.45 to 3.95 mm when applying from an initial load of 98 N to a final load of 1275 N, and has a surface hardness in JIS-C hardness higher than a center hardness in JIS-C hardness by 5 to 20, and the outmost layer of the cover has a Shore D hardness of 60 to 64.

摘要翻译： 本发明提供了一种具有非常柔软和良好的拍摄感觉的多件式实心高尔夫球，并且当以低头速度摆动高尔夫球杆的高尔夫球手击打时，具有优异的反弹特性和飞行性能。 本发明涉及一种多片固体高尔夫球，其包括由内芯和外芯组成的芯，以及至少一层盖，其中外芯的肖氏D硬度为25〜40，厚度为0.3 在从初始载荷98N施加到最终负荷1275N的情况下，芯的变形量为3.45〜3.95mm，JIS-C硬度的表面硬度比JIS- C硬度为5〜20，最外层的肖氏D硬度为60〜64。

公开(公告)号：US08389607B2

公开(公告)日：2013-03-05

申请号：US12222487

申请日：2008-08-11

申请人： Hirotaka Nakamura ,  Keiji Ohama

发明人： Hirotaka Nakamura ,  Keiji Ohama

IPC分类号： A63B37/12 ,  C08L75/08 ,  C08K5/3475

CPC分类号： A63B37/0023 ,  A63B37/0022

摘要： Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover 6 includes a benzotriazole based ultraviolet ray absorbing agent, a hindered amine light stabilizer and a hindered phenol heat resistance stabilizer. Provided that the molar concentration of the benzotriazole based ultraviolet ray absorbing agent is defined as A; the molar concentration of the hindered amine light stabilizer is defined as B; and the molar concentration of the hindered phenol heat resistance stabilizer is defined as C, the molar ratio (B/A) is 0.01 or greater and 0.5 or less, and the molar ratio [(B+C)/A] is 0.1 or greater and 1.5 or less. Preferably, the hindered amine light stabilizer does not have a hindered phenol group in the molecule. Preferably, the principal component of the elastomer is a reaction product of MDI and polyether polyol.