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    • 76. 再颁专利
    • Two-piece solid golf ball
    • 两件式固体高尔夫球
    • USRE45470E1
    • 2015-04-14
    • US13088639
    • 2011-04-18
    • Hideo Watanabe
    • Hideo Watanabe
    • A63B37/06A63B37/00
    • A63B37/0031A63B37/0003A63B37/0004A63B37/0018A63B37/0062A63B37/0074A63B37/02A63B37/14
    • In a two-piece solid golf ball comprising a solid core and a cover, the JIS-C hardness at the core surface minus the JIS-C hardness at the core center is 20-30 units, the cover has a gage of 1.3-2 mm and a Shore D hardness of 40-55, and the JIS-C hardness at the cover surface is not greater than the JIS-C hardness at the core surface. Dimples are formed on the cover surface to satisfy a total number of 360-492 and a percent dimple volume VR of 0.74-0.84%. The golf ball is susceptible to spin and easy to control upon approach shots and short iron shots, travels a long distance upon driver shots, gives a pleasant feel on any shot with driver, iron and putter clubs, and offers improved playability satisfying low-handicap players.
    • 在包括实心芯和盖的两片固体高尔夫球中,核心表面的JIS-C硬度减去核心中心的JIS-C硬度为20-30单位,盖的表面积为1.3-2 mm,肖氏D硬度为40-55,盖表面的JIS-C硬度不大于芯表面处的JIS-C硬度。 凹坑形成在盖表面上以满足总数360-492和百分比凹坑体积VR为0.74-0.84%。 高尔夫球易于旋转,易于控制,射门和短距离射门,在驾驶员射击时长途旅行,在驾驶员,铁杆和推杆俱乐部的任何射门上都能感觉到愉快的感觉,并提供满足低伤害的改进的可玩性 玩家
    • 77. 发明授权
    • Golf ball
    • 高尔夫球
    • US09005050B2
    • 2015-04-14
    • US13046867
    • 2011-03-14
    • Satoko Okabe
    • Satoko Okabe
    • A63B37/04A63B37/00A63B37/06
    • A63B37/0003A63B37/0031A63B37/0033A63B37/0039A63B37/004A63B37/0043A63B37/0045A63B37/0049A63B37/0062A63B37/0064A63B37/0087A63B37/06
    • An object of the present invention is to provide a golf ball that decrease the spin rate on the driver shots while suppressing the decrease in the spin rate on the approach shots in a golf ball having a urethane cover. The present invention provides a golf ball having a core consisting of a center and at least one intermediate layer covering the center, and a cover covering the core, wherein the cover contains polyurethane, and has a slab hardness of 85 or less in JIS A hardness, the core has a surface hardness of 60 or more in Shore D hardness, the intermediate layer has a thickness ranging from 0.5 mm to 2.0 mm, and a resin component constituting the intermediate layer has a hardness from 62 to 68 in Shore D hardness, a flexural modulus from 300 MPa to 500 MPa, and a maximum storage modulus E′ between −30° C. to 0° C. ranging from 1,000 MPa to 2,000 MPa.
    • 本发明的目的是提供一种高尔夫球,其在抑制具有聚氨酯盖的高尔夫球的接近射击的旋转速度降低的同时降低驾驶员镜头上的旋转速度。 本发明提供一种高尔夫球,其具有由中心和覆盖中心的至少一个中间层构成的芯和覆盖芯的盖,其中盖包含聚氨酯,并且在JIS A硬度中具有85或更小的板坯硬度 芯部的肖氏D硬度的表面硬度为60以上,中间层的厚度为0.5mm〜2.0mm,构成中间层的树脂成分的肖氏D硬度为62〜68的硬度, 300MPa至500MPa的挠曲模量和在-30℃至0℃之间的最大储存模量E'为1,000MPa至2,000MPa。