公开(公告)号：US08182368B2

公开(公告)日：2012-05-22

申请号：US12545230

申请日：2009-08-21

申请人： Kazuya Kamino ,  Keiji Ohama ,  Hirotaka Nakamura

发明人： Kazuya Kamino ,  Keiji Ohama ,  Hirotaka Nakamura

IPC分类号： A63B37/06

CPC分类号： A63B37/0031 ,  A63B37/0003 ,  A63B37/0029 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/004 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/006 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0076 ,  A63B37/0092 ,  A63B37/02 ,  C09D177/00 ,  C08K3/22 ,  C08L63/00

摘要： A golf ball 2 includes a core 4, an envelope layer 6positioned outside the core 4, a mid layer 8 positioned outside the envelope layer 6, and a cover 10 positioned outside the mid layer 8. The core 4 includes a spherical center 12 and a core outer layer 14 positioned outside the center 12. The center 12 has a diameter of 1 mm or greater and 15 mm or less. The difference (H4−H3) between the JIS-C hardness H4 of the core 4 at its surface and the JIS-C hardness H3 of the core outer layer 14 at its innermost portion is equal to or greater than 10. The cover 10 has a Shore D hardness H7 less than 40. The Shore D hardnesses H5, H6 and H7 of the envelope layer 6, the mid layer 8, and the cover 10 satisfy that H5>H6≧H7.

摘要翻译： 高尔夫球2包括芯部4，位于芯部4外部的包络层6，位于包络层6外侧的中间层8和位于中间层8外侧的盖10.芯部4包括球形中心12和 芯部外层14位于中心12的外侧。中心部12具有1mm以上且15mm以下的直径。 核心4的表面的JIS-C硬度H4与芯部外层14的最内侧的JIS-C硬度H3之间的差（H4-H3）等于或大于10.盖10具有 肖氏D硬度H7小于40.包层6，中层8和盖10的肖氏D硬度H5，H6和H7满足H5>H6≥H7。

公开(公告)号：US07999019B2

公开(公告)日：2011-08-16

申请号：US12222511

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 ,  A63B37/00 ,  C08L75/08 ,  C08K5/3435

CPC分类号： C08G18/7664 ,  A63B37/0022 ,  A63B37/0023

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 includes 0.1 parts by weight or more and 10 parts by weight or less of a hindered amine heat and light resistance stabilizer having a hindered phenol group, per 100 parts by weight of the base polymer. Preferably, the hindered amine heat and light resistance stabilizer has two or more hindered phenol groups in the molecule. It is preferred that the cover 6 further includes an ultraviolet ray absorbing agent and a heat resistance stabilizer. Provided that the molar concentration of the hindered amine heat and light resistance stabilizer is defined as A, and the molar concentration of the ultraviolet ray absorbing agent is defined as B, the molar ratio (A/B) is preferably 0.01 or greater and 2.5 or less. The cover 6 may further include a heat resistance stabilizer.

摘要翻译： 高尔夫球2具有芯4，盖6和涂料层12.盖6的基础聚合物包括热塑性聚氨酯弹性体。 基于100重量份的基础聚合物，该覆盖物包含0.1重量份以上且10重量份以下的受阻胺耐热稳定剂和具有受阻酚基的耐光稳定剂。 受阻胺耐热耐光性稳定剂优选在分子中具有2个以上的受阻酚基。 优选的是，盖6还包括紫外线吸收剂和耐热稳定剂。 如果将受阻胺耐热稳定剂的摩尔浓度定义为A，将紫外线吸收剂的摩尔浓度定义为B，则摩尔比（A / B）优选为0.01以上且2.5以下 减。 盖6还可以包括耐热稳定剂。

公开(公告)号：US20110092315A1

公开(公告)日：2011-04-21

申请号：US12880667

申请日：2010-09-13

申请人： Hirotaka NAKAMURA ,  Keiji Ohama ,  Seiichiro Endo

发明人： Hirotaka NAKAMURA ,  Keiji Ohama ,  Seiichiro Endo

IPC分类号： A63B37/02 ,  A63B37/12

CPC分类号： A63B37/0092 ,  A63B37/0022 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0076

摘要： Golf ball 2 has spherical core 4, surrounding layer 6 situated on the external side of the core 4, mid layer 8 situated on the external side of the surrounding layer 6, cover 10 situated on the external side of the mid layer 8, and paint layer 12 situated on the external side of the cover 10. The mid layer 8 has a thickness Tm of 0.1 mm or greater and 1.2 mm or less. The ratio (Tc/Tm) of the thickness Tc of the cover 10 to the thickness Tm of the mid layer 8 is no greater than 0.50. The cover 10 has a Shore D hardness Hc of no greater than 35. The Shore D hardness Hm of the mid layer 8 is greater than the Shore D hardness Hc of the cover 10. The base material of the surrounding layer 6 is an ionomer resin. The base material of the mid layer 8 is a polyurethane. The base material of the cover 10 is a polyurethane.

摘要翻译： 高尔夫球2具有球形芯4，位于铁芯4的外侧的周围层6，位于周围层6的外侧的中间层8，位于中间层8的外侧的盖10和涂料 层12位于盖10的外侧。中间层8的厚度Tm为0.1mm以上且1.2mm以下。 盖10的厚度Tc与中间层8的厚度Tm的比（Tc / Tm）不大于0.50。 盖10的肖氏D硬度Hc不大于35.中间层8的肖氏D硬度Hm大于盖10的肖氏D硬度Hc。周围层6的基材是离聚物树脂 。 中间层8的基材是聚氨酯。 盖10的基材是聚氨酯。

公开(公告)号：US20090075759A1

公开(公告)日：2009-03-19

申请号：US12222511

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

CPC分类号： C08G18/7664 ,  A63B37/0022 ,  A63B37/0023

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 includes 0.1 parts by weight or more and 10 parts by weight or less of a hindered amine heat and light resistance stabilizer having a hindered phenol group, per 100 parts by weight of the base polymer. Preferably, the hindered amine heat and light resistance stabilizer has two or more hindered phenol groups in the molecule. It is preferred that the cover 6 further includes an ultraviolet ray absorbing agent and a heat resistance stabilizer. Provided that the molar concentration of the hindered amine heat and light resistance stabilizer is defined as A, and the molar concentration of the ultraviolet ray absorbing agent is defined as B, the molar ratio (A/B) is preferably 0.01 or greater and 2.5 or less. The cover 6 may further include a heat resistance stabilizer.

摘要翻译： 高尔夫球2具有芯4，盖6和涂料层12.盖6的基础聚合物包括热塑性聚氨酯弹性体。 基于100重量份的基础聚合物，该覆盖物包含0.1重量份以上且10重量份以下的受阻胺耐热稳定剂和具有受阻酚基的耐光稳定剂。 受阻胺耐热耐光性稳定剂优选在分子中具有2个以上的受阻酚基。 优选的是，盖6还包括紫外线吸收剂和耐热稳定剂。 如果将受阻胺耐热稳定剂的摩尔浓度定义为A，将紫外线吸收剂的摩尔浓度定义为B，则摩尔比（A / B）优选为0.01以上且2.5以下 减。 盖6还可以包括耐热稳定剂。

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：US07261650B2

公开(公告)日：2007-08-28

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：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.