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81. 发明专利

JP2002315848A MULTIPIECE SOLID GOLF BALL 失效
公开(公告)号：JP2002315848A
公开(公告)日：2002-10-29
申请号：JP2001125715
申请日：2001-04-24
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO , UMEZAWA JUNJI , SHIMOZAKA HIROTAKA
IPC分类号： A63B37/00 , A63B37/04 , A63B37/12 , C08K3/18 , C08K5/09 , C08L23/26
摘要： PROBLEM TO BE SOLVED: To provide a multipiece solid golf ball, which is superior in flying performance and more improves spin performance, feelings of hitting, durability and repulsiveness when using an iron or at an approach shot. SOLUTION: In the multipiece solid golf ball, with which an elastic solid core is overlaid with the cover of at least one layer and an intermediate layer composed of thermoplastic materials is interposed between the core and the cover, in the core, a load deformation quantity from the load state of 98 N to 1274 N is 3.2 to 6.5 mm and in the cover, Shore D hardness is 45 to 55 on the other hand. In the intermediate layer, the Shore D hardness is within the range of 54 to 65 and the Shore D hardness of the intermediate layer is higher than the Shore D hardness of the cover. Besides, the sum of thickness of the cover and the intermediate layer is 2.3 to 3.5 mm and the ratio of thickness of the cover to the thickness of the intermediate layer is within the range of 0.48 to 0.84.

82. 发明专利

JP2002000764A GOLF BALL 失效
公开(公告)号：JP2002000764A
公开(公告)日：2002-01-08
申请号：JP2000190638
申请日：2000-06-26
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/04 , A63B37/06
摘要： PROBLEM TO BE SOLVED: To provide a golf ball exhibiting excellent bounce, carry performance, and durability and producing a good hitting feeling. SOLUTION: This golf ball is provided with a rubber elastic core and a cover having multiple dimples formed on the surface, and at least one intermediate layer is arranged between the core and the cover. The intermediate layer is made of a resin material softer than that for the cover, while in the elastic core, hardness is gradually increased from the central part to the radial outside end part (core surface), and a JIS-C hardness difference between the core central part and the radial outside end part is 21 at least.

83. 发明专利

JP2001299963A MULTI-PIECE SOLID GOLF BALL 失效
公开(公告)号：JP2001299963A
公开(公告)日：2001-10-30
申请号：JP2000122179
申请日：2000-04-24
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/04 , A63B37/06 , A63B37/12
摘要： PROBLEM TO BE SOLVED: To provide a multi-piece solid golf ball which high durability, excellent feeling and flying distance characteristics. SOLUTION: The multi-piece solid golf ball is provided with a solid core, a cover, and an intermediate layer between the solid core and the cover. The hardness of the core is maximized at the 3-10-mm inner side portion of a surface. The differential between the maximum hardness and center hardness is 3 or more in JIS-C hardness and the intermediate layer is softer than the cover.

84. 发明专利

JP2001293106A TWO PIECE SOLID GOLF BALL 失效
公开(公告)号：JP2001293106A
公开(公告)日：2001-10-23
申请号：JP2000114215
申请日：2000-04-14
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/04 , A63B37/12
摘要： PROBLEM TO BE SOLVED: To provide a two piece solid golf ball which is excellent in carry, hitting feeling, durability against repeated hitting driver hitting, and feeling in putting, and given good balance in these performances. SOLUTION: This two piece solid golf ball comprises a solid core and a cover to cover the solid core. The solid core has a hardness distribution with a largest hardness difference not higher than 5 (JIS-C hardness), and the cover has thickness not higher than 2 mm and Shore D hardness not higher than 62.

85. 发明专利

JP2001095947A MULTI-PIECE SOLID GOLF BALL 失效
公开(公告)号：JP2001095947A
公开(公告)日：2001-04-10
申请号：JP27845199
申请日：1999-09-30
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO , SHIMIZU YASUMASA , KAWADA AKIRA
IPC分类号： A63B37/00 , A63B37/04 , A63B37/12
摘要： PROBLEM TO BE SOLVED: To provide a golf ball, wherein feeling is favorable in the hitting by various kinds of clubs, and the flying distance in the hitting by a driver can be improved. SOLUTION: This multi-piece solid golf ball is equipped with a solid core, at least one layer of an intermediate layer, which covers the solid core, and at least one layer of a cover, which covers the intermediate layer. In such a multi-piece solid golf ball, the ratio between the μ hardness of the intermediate layer and the μhardness of the solid core (the μ hardness of the intermediate layer/the μ hardness of the solid core) is 0.98 or higher. At the same time, the JIS-C hardness difference between the surface and the center of the solid core (the surface hardness-the center hardness) is 5 or higher.

86. 发明专利

JPH08164226A GOLF BALL 失效
公开(公告)号：JPH08164226A
公开(公告)日：1996-06-25
申请号：JP33302494
申请日：1994-12-14
申请人： BRIDGESTONE SPORTS CO LTD
发明人： YAMAGISHI HISASHI , EGASHIRA YOSHINORI , WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/06 , A63B37/12
摘要： PURPOSE: To provide a golf ball which is excellent in feeling ability and in a spin characteristic without deteriorating the carry thereof by setting the hardness of a core to a value higher than a specific value as to a degree of deformation at the time of applying a predetermined load, and the ratio between core hardness and ball hardness and the thickness of a cover to predetermined values, respectively. CONSTITUTION: The hardness of a core is such that a degree of deformation is greater than 2.2mm under a load of 100kg, the value obtained by dividing the core hardness with the hardness of a ball is in a range between 1.0 to 1.3 while the thickness of a cover is in a range between 1.3 to 1.8mm. In this case, if the degree of deformation is less than 2.2mm, the feeling ability deteriorates, but if it is larger, the repulsiveness deteriorates so that the carry is shortened, that is, soft feeling is sensed. If the ratio between core hardness and ball hardness is less than 1.0, the feeling deteriorates, but it is larger than 1.3, the stopping ability on the green tends to deteriorate. Further, if the thickness of the cover is less than 1.3mm, the top damaging ability deteriorates, resulting in possible breakage. But if it is greater than 1.8mm, the repulsiveness deteriorates, the carry is shortened, and the feeling ability lowers.

87. 发明专利

JPH08767A GOLF BALL 失效
公开(公告)号：JPH08767A
公开(公告)日：1996-01-09
申请号：JP11019395
申请日：1995-04-11
申请人： BRIDGESTONE SPORTS CO LTD
发明人： EGASHIRA YOSHINORI , ICHIKAWA YASUFUMI , WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/12 , C08L23/26 , C08L53/00
摘要： PURPOSE:To provide a golf ball having an excellent hitting feeling, controllability, and impact resilience and even resistance to scratch due to a hit by an iron club, by using a blend of a thermoplastic elastomer with an ionomer resin at a specific ratio. CONSTITUTION:This golf ball comprises a core and a cover for covering the core. The main resin components forming the cover is a mixture of 10-60wt.% of a thermoplastic elastomer having crystalline polyethylene block with 90-40wt.% of an ionomer resin.

88. 发明专利

JP2002126129A TWO-PIECE GOLF BALL 失效
公开(公告)号：JP2002126129A
公开(公告)日：2002-05-08
申请号：JP2000279875
申请日：2000-09-14
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/04 , A63B37/06 , A63B37/12
摘要： PROBLEM TO BE SOLVED: To further increase a carry without impairing a feeling (a hitting feeling) and durability in a two-piece golf ball. SOLUTION: This two-piece golf ball having a core and a cover is characterized in that the core is formed of a rubber composition including an organic sulfur compound by 0.05 pt.wt. or more to 100 pts.wt. of base material rubber, JIS-C hardness of the core center by a JIS-C type hardness meter is 40 to 60, JIS-C hardness of a core surface is 70 to 85, a JIS-C hardness difference between a core surface and the core center is 20 to 27, a compressive deformation quantity when applying the final load 130 kgf (1274.91 N) from an initial load 10 kgf (98.07 N) is 3.5 to 4.6 mm, and the cover has the thickness of 1.8 to 2.3 mm.

89. 发明专利

JP2002065897A TWO-PIECE GOLF BALL 失效
公开(公告)号：JP2002065897A
公开(公告)日：2002-03-05
申请号：JP2000254188
申请日：2000-08-24
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/04 , A63B37/12
摘要： PROBLEM TO BE SOLVED: To provide a two-piece golf ball having the excellent durability and appropriate for the use as a gold ball for practice. SOLUTION: In this two-piece golf ball provided with a solid core and a cover, a difference of the JIS-C hardness of the solid core between the maximum value and the minimum value is restricted within 5, and the cover is composed mainly of the Zn ion neutralization type ionomer resin and the Na ion neutralization type ionomer resin, and the Shore hardness of the cover is restricted to 62 or less, and the cover thickness is set at 2.1-2.7 mm.

90. 发明专利

JP2002011116A SOLID GOLF BALL 失效
公开(公告)号：JP2002011116A
公开(公告)日：2002-01-15
申请号：JP2000194701
申请日：2000-06-28
申请人： BRIDGESTONE SPORTS CO LTD
发明人： WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/04 , A63B37/12 , C08L23/26
摘要： PROBLEM TO BE SOLVED: To provide a solid golf ball, comprising a core and a cover, which improves cracking durability by increasing the thickness of the cover and moreover, achieves a higher flying performance and a better hitting touch in a type comprising a core and a cover. SOLUTION: The solid golf ball meets the following requirements (1) to (3): (1) the thickness of the cover exceeding 2.5 mm; (2) the Shore D hardness of 59 to 62 for the cover; and (3) the value of [(the JIS-C hardness of the core surface part)-(the JIS-C hardness of the core center part)] exceeding 8.

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