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    GOLF BALL
    22.
    发明申请
    GOLF BALL 审中-公开

    公开(公告)号：US20170304684A1

    公开(公告)日：2017-10-26

    申请号：US15649273

    申请日：2017-07-13

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Kazuhiko ISOGAWA ,  Kosuke TACHIBANA

    IPC: A63B37/00

    CPC classification number: A63B37/0092 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0054 ,  A63B37/0059 ,  A63B37/0063 ,  A63B37/0076

    Abstract: A golf ball 2 includes a spherical core 4, an inner mid layer 6, an outer mid layer 8, a reinforcing layer 10, and a cover 12. When distances (%) from a central point of the core 4 to nine points and JIS-C hardnesses at the nine points, which nine points are obtained by dividing a region from the central point of the core 4 to a surface of the core 4 at intervals of 12.5% of a radius of the core 4, are plotted in a graph, R2 of a linear approximation curve obtained by a least-square method is equal to or greater than 0.95. Hm1 is greater than Hm2. Hc is less than Hm1. T2 is equal to or greater than 0.5 mm but equal to or less than 1.6 mm.

    GOLF BALL
    23.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20160367864A1

    公开(公告)日：2016-12-22

    申请号：US14902173

    申请日：2014-10-07

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Kazuhiko ISOGAWA ,  Kosuke TACHIBANA

    IPC: A63B37/00

    CPC classification number: A63B37/0092 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/004 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0051 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0076 ,  A63B37/008 ,  A63B37/0083 ,  A63B37/0087 ,  A63B37/0094 ,  A63B37/0096

    Abstract: [Object] To provide a golf ball that is excellent in high flight distance performance, excellent approach performance, feel at impact.[Solution] A golf ball includes a spherical core, a mid layer, an inner cover, and an outer cover. A hardness Hm of the mid layer is greater than a hardness Hinc of the inner cover which is greater than a hardness Houc of the outer cover. A difference (Hm−Houc) is greater than 25. A volume Vm of the mid layer is greater than a volume Vinc of the inner cover which is greater than a volume Vouc of the outer cover. A ratio [(Vm+Vinc+Vouc)/V] of a sum (Vm+Vinc+Vouc) relative to a volume V of an entirety of the golf ball is less than 0.30. A ratio (Vm/Vouc) is greater than 1.50. A product (Vm*Hm) and a product (Vouc*Houc) meet the following relationship: [(Vm*Hm)/(Vouc*Houc)]>3.0.

    Abstract translation: 高尔夫球包括球形芯，中间层，内盖和外盖。 中间层的硬度Hm大于内盖的硬度Hinc大于外盖的硬度Houc。 差（Hm-Houc）大于25.中间层的体积Vm大于内盖的体积Vinc大于外盖的体积Vouc。 总和（Vm + Vinc + Vouc）相对于整个高尔夫球的体积V的比值[（Vm + Vinc + Vouc）/ V]小于0.30。 比率（Vm / Vouc）大于1.50。 产品（Vm * Hm）和产品（Vouc * Houc）满足以下关系：[（Vm * Hm）/（Vouc * Houc）]> 3.0。

    GOLF BALL
    24.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20160310798A1

    公开(公告)日：2016-10-27

    申请号：US15132909

    申请日：2016-04-19

    Applicant: Dunlop Sports Co. Ltd.

    Inventor： Kohei MIMURA ,  Takahiro SAJIMA ,  Kosuke TACHIBANA

    IPC: A63B37/00

    CPC classification number: A63B37/0092 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0076

    Abstract: An object of the present invention is to provide a golf ball traveling a great distance on driver shots. The present invention provides a golf ball comprising a spherical core including an inner layer and an outer layer, an intermediate layer and a cover, wherein a difference (HX+1−HX−1) between a hardness (HX+1) at a point outwardly away in a radial direction from a boundary between the inner layer and the outer layer of the spherical core by 1 mm and a hardness (HX−1) at a point inwardly away in the radial direction from the boundary between the inner layer and the outer layer of the spherical core by 1 mm is 0 or more in Shore C hardness, a surface hardness (HX+Y) of the spherical core is more than 65 in Shore C hardness, an angle α of a hardness gradient of the inner layer is 0° or more, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, a total thickness of a thickness (Tm) of the intermediate layer and a thickness (Tc) of the cover is 3 mm or less, and the cover has a highest hardness among the constituent members of the golf ball.

    Abstract translation: 本发明的目的是提供一种在驾驶员镜头上行驶很远的高尔夫球。 本发明提供一种高尔夫球，其包括具有内层和外层的球形芯，中间层和盖，其中在一点处的硬度（HX + 1）之间的差（HX + 1-HX-1） 在径向方向上从球形芯的内层和外层之间的边界向外远离1mm，并且在径向方向上从内层和内层之间的边界向内的点处的硬度（HX-1） 球状芯的外层1mm的肖氏C硬度为0以上，球状芯的表面硬度（HX + Y）在肖氏C硬度中大于65，内层的硬度梯度的角度α 为0°以上时，外层的硬度梯度的角度α和角度β之间的差（α-β）为0°以上，中间层的厚度（Tm）和 盖子的厚度（Tc）为3mm以下，盖部件中的硬度最高 高尔夫球的球员。

    GOLF BALL
    25.
    发明申请
    GOLF BALL 审中-公开
    高尔夫球

    公开(公告)号：US20130324320A1

    公开(公告)日：2013-12-05

    申请号：US13906564

    申请日：2013-05-31

    Applicant: Dunlop Sports Co., Ltd.

    Inventor： Kazuhiko ISOGAWA ,  Kosuke TACHIBANA ,  Takahiro SHIGEMITSU

    IPC: A63B37/00

    CPC classification number: A63B37/0054 ,  A63B37/0003 ,  A63B37/0033 ,  A63B37/0038 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0076 ,  A63B37/0092

    Abstract: The present invention provides a golf ball comprising a spherical core composed of a spherical inner core layer and an outer core layer, an intermediate layer and a cover, wherein the inner core layer has a hardness difference (Hs1-Ho) between a surface hardness (Hs1) and a center hardness (Ho) of 5 or less in JIS-C hardness, the outer core is such that R2 of a linearly approximated curve obtained from a least square method is 0.95 or higher, when JIS-C hardness, measured at nine points obtained by dividing a thickness of the outer core in a radius direction of the spherical core into equal parts having 12.5% intervals therebetween, is plotted against distance (%) from a border point between the outer core layer and the inner core layer, and the intermediate layer has a slab hardness which is greater than a slab hardness of the cover.

    Abstract translation: 本发明提供一种高尔夫球，其包括由球形内芯层和外芯层构成的球形芯，中间层和盖，其中内芯层具有表面硬度（Hs1-Ho）之间的硬度差（Hs1-Ho） Hs1），中心硬度（Ho）在JIS-C硬度中为5以下的中心硬度，外芯使得从最小二乘法得到的线性近似曲线的R2为0.95以上，JIS-C硬度 将外球芯的半径方向的厚度除以与外芯层和内芯层之间的边界部分的距离（％）相对于其间具有12.5％间隔的相等部分得到的9点， 并且中间层具有大于盖的板坯硬度的板坯硬度。

    GOLF BALL
    26.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20130324318A1

    公开(公告)日：2013-12-05

    申请号：US13906476

    申请日：2013-05-31

    Applicant: Dunlop Sports Co. Ltd.

    Inventor： Kazuhiko ISOGAWA ,  Kosuke TACHIBANA ,  Takahiro SAJIMA ,  Toshiyuki TARAO

    IPC: A63B37/00

    CPC classification number: A63B37/0076 ,  A63B37/0003 ,  A63B37/0004 ,  A63B37/0006 ,  A63B37/0018 ,  A63B37/0021 ,  A63B37/0033 ,  A63B37/0038 ,  A63B37/0039 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0075 ,  A63B37/0077 ,  A63B37/0092 ,  C08K5/09 ,  C08K5/098 ,  C09D175/04

    Abstract: The present invention provides a golf ball comprising a golf ball body with a spherical core having one or more layers, an intermediate layer disposed outside the spherical core and a cover disposed outside the intermediate layer and a paint film formed on a surface of the golf ball body, and having a friction coefficient calculated using a contact force tester of 0.35 or more and 0.60 or less, wherein the golf ball body has specific plurality of dimples on the surface thereof, at least one layer of the spherical core is a rubber layer having a specific hardness distribution, and the rubber layer has a hardness at the outermost point which is greater than a hardness at the innermost point, and the intermediate layer has a slab hardness (Hm) which is greater than a slab hardness (Hc) of the cover.

    Abstract translation: 本发明提供一种高尔夫球，其包括具有一个或多个层的球形芯的高尔夫球体，设置在球形芯外侧的中间层和设置在中间层外侧的盖和形成在高尔夫球表面上的漆膜 并且具有使用0.35以上且0.60以下的接触力试验机计算的摩擦系数，其中，所述高尔夫球体的表面具有特定的多个凹坑，所述球形芯的至少一层为具有 特定的硬度分布，并且橡胶层的最外点的硬度大于最内点处的硬度，中间层的板坯硬度（Hm）大于板的硬度（Hc）， 盖。

    GOLF BALL
    27.
    发明申请
    GOLF BALL 审中-公开
    高尔夫球

    公开(公告)号：US20130324316A1

    公开(公告)日：2013-12-05

    申请号：US13872487

    申请日：2013-04-29

    Applicant: DUNLOP SPORTS CO., LTD.

    Inventor： Kazuhiko ISOGAWA ,  Kosuke TACHIBANA

    IPC: A63B37/00

    CPC classification number: A63B37/0054 ,  A63B37/0076 ,  A63B37/0092 ,  A63B37/06 ,  C08K5/0025 ,  C08K5/09 ,  C08K5/098 ,  C08K2201/014 ,  C08L21/00

    Abstract: A golf ball 2 includes a core 4, a first mid layer 6, a second mid layer 8, and a cover 12. The core 4 includes a center 18 and an envelope layer 20. The center 18 is formed by crosslinking a first rubber composition, and the envelope layer 20 is formed by crosslinking a second rubber composition. The first rubber composition or the second rubber composition includes a base rubber, a co-crosslinking agent, a crosslinking initiator, and an acid and/or a salt. The co-crosslinking agent is: (1) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms; and/or (2) a metal salt of an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms. A hardness Hm2 of the second mid layer 8 is greater than a hardness Hm1 of the first mid layer 6. The hardness Hm2 is greater than a hardness Hc of the cover 12.

    Abstract translation: 高尔夫球2包括芯4，第一中间层6，第二中间层8和盖12.芯4包括中心18和包层20.中心18通过将第一橡胶组合物 并且通过交联第二橡胶组合物形成包络层20。 第一橡胶组合物或第二橡胶组合物包括基础橡胶，共交联剂，交联引发剂和酸和/或盐。 共交联剂是：（1）具有3-8个碳原子的α，β-不饱和羧酸; 和/或（2）具有3-8个碳原子的α，β-不饱和羧酸的金属盐。 第二中间层8的硬度Hm2大于第一中间层6的硬度Hm1。硬度Hm2大于盖12的硬度Hc。

    GOLF BALL
    29.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20170056731A1

    公开(公告)日：2017-03-02

    申请号：US15245921

    申请日：2016-08-24

    Applicant: Dunlop Sports Co. Ltd.

    Inventor： Toshiyuki TARAO ,  Hidetaka INOUE ,  Kazuya KAMINO ,  Kosuke TACHIBANA

    IPC: A63B37/00 ,  C09D175/08 ,  A63B37/14

    CPC classification number: A63B37/0022 ,  A63B37/0004 ,  A63B37/0029 ,  A63B37/0031 ,  A63B37/0037 ,  A63B37/0074 ,  A63B37/0089 ,  A63B37/0096 ,  A63B37/14 ,  C09D175/08

    Abstract: An object of the present invention is to provide a golf ball showing an increased spin rate on approach shots under a wet condition while maintaining a spin rate on approach shots under a dry condition. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film has a multi-layered construction composed of two or more layers, and a difference (Min−Mout) between a 10% elastic modulus (Min) of an innermost layer of the paint film and a 10% elastic modulus (Mout) of an outermost layer of the paint film is 25 kgf/cm2 or more.

    Abstract translation: 本发明的目的是提供一种高尔夫球，其在湿润状态下显示出现接近射击时的旋转速率增加，同时在干燥条件下保持接近射击的旋转速率。 本发明提供一种高尔夫球，其包括高尔夫球体和形成在高尔夫球体的表面上的漆膜，其中涂膜具有由两层或多层组成的多层结构和差异（Min-Mout ）在漆膜的最内层的10％弹性模量（Min）和漆膜的最外层的10％弹性模量（Mout）之间为25kgf / cm 2以上。

    GOLF BALL
    30.
    发明申请
    GOLF BALL 有权
    高尔夫球

    公开(公告)号：US20160310799A1

    公开(公告)日：2016-10-27

    申请号：US15138484

    申请日：2016-04-26

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Kazuya KAMINO ,  Kosuke TACHIBANA

    IPC: A63B37/00

    CPC classification number: A63B37/0092 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0037 ,  A63B37/0039 ,  A63B37/004 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0049 ,  A63B37/006 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0076

    Abstract: An object of the present invention is to provide a golf ball traveling a great distance on driver shots. The present invention provides a golf ball comprising a spherical core including an inner layer and an outer layer, an intermediate layer and and a cover, wherein a difference (HX+1−HX−1) between a hardness (HX+1) at a point outwardly away in a radial direction from a boundary between the inner layer and the outer layer of the spherical core by 1 mm and a hardness (HX−1) at a point inwardly away in the radial direction from the boundary between the inner layer and the outer layer of the spherical core by 1 mm is 0 or more in Shore C hardness, a surface hardness (HX+Y) of the spherical core is more than 70 in Shore C hardness, an angle α of a hardness gradient of the inner layer is 0° or more, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, the intermediate layer has a material hardness (Hm) ranging from 65 to 80 in Shore D hardness, and the intermediate layer has a highest hardness among the constituent members of the golf ball.

    Abstract translation: 本发明的目的是提供一种在驾驶员镜头上行驶很远的高尔夫球。 本发明提供一种高尔夫球，其包括具有内层和外层的球形芯，中间层和盖，其中，在（a）中的硬度（HX + 1）之间的差异（HX + 1-HX-1） 从球形芯的内层和外层之间的边界沿径向向外指向1mm，并且在距离内层和内层之间的边界的径向内侧的点处具有硬度（HX-1） 球状芯的外层1mm的肖氏C硬度为0以上，球状芯的表面硬度（HX + Y）在肖氏C硬度中大于70，内部的硬度梯度的角度α 层的厚度为0°以上，外层的硬度梯度的角度α和角度β之间的差（α-β）为0°以上，中间层的材料硬度（Hm）为65〜 80的肖氏D硬度，中间层在成分记忆中具有最高的硬度 高尔夫球的rs。

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