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JP4243908B2 |
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JP4233378B2 |
A method of producing a golf ball with uniform thickness by, eliminating defective air between the cover and the core, an insufficient thickness of the cover and an uneven thickness of the cover wherein in the step of heat and compressio...
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JP4233384B2 |
There is provided a method of producing a golf ball, capable of forming a cover to have a uniform thickness to produce a golf ball excellent in resistance to abrasion. The method includes a step to subject a cover material mainly compose...
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JP2009043088A |
To analyze anti-chunking performance or the like of a golf ball with high accuracy.This analysis method for the golf ball is a method for analyzing the golf ball by use of a finite element method, and includes processes: for modeling the...
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JP4224206B2 |
An improved golf ball comprising a center having a first hardness, a first layer surrounding the center, comprised of a second material, a second layer surrounding the first layer, comprised of a third material, a third layer surrounding...
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JP2009504337A |
A method of forming a golf ball is disclosed herein. The method includes placing a golf ball precursor product with a cover comprising a thermoplastic polyurethane material and a dendritic polymer in a solution containing an isocyanate f...
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JP2009022606A |
To provide a golf ball mold having a parting line formed along dimples, which forms surely removable burrs, and a golf ball molded using the mold.The golf ball mold has an inside spherical cavity and is parted into an upper mold and a lo...
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JP2009502445A |
Disclosed herein, in various embodiments, are multi-layer golf balls. In particular, disclosed herein are high compression multi-layer golf balls covered with relatively thin and/or hard reaction injection molded (RIM) covers. The golf b...
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JP4206341B2 |
A golf ball (10) comprising a core and a cover layer, wherein the cover layer provides one or more deep dimples (42) having two or more different radii is disclosed. The deep dimples (42) extend through the cover layer to and/or into a l...
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JP4198476B2 |
A golf ball manufacturing method comprises a step of holding a spew (B) of a seam (C) of a golf ball (G) in a predetermined position, a step of deciding whether the position of the seam (C) is normal, and a step of distinguishing the nec...
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JP4194441B2 |
The present invention provides a golf ball having excellent flight performance. The present invention relates to a golf ball comprising a core and a cover covering the core, wherein the cover has many fine open voids formed by foaming on...
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JP4188247B2 |
A golf ball comprising a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer to and/or into a layer or component underneath is disclosed. The cover may be a single layer o...
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JP4188246B2 |
A golf ball (10, 110, 210, 310, 410, 810) comprising a core (20, 120, 220, 320, 420, 840) and a cover layer (30, 230, 330). The core (20) defines at least one depression along its outer surface (35, 235, 335). The cover layer (30, 230, 3...
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JP4188245B2 |
An apparatus and related techniques for making a golf ball with deep dimples are disclosed. The golf ball comprises a core and a cover layer, wherein the cover layer provides deep dimples that extend through the cover layer and/or into a...
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JP4169799B2 |
A unique golf ball and related methods of manufacturing are disclosed in which the golf ball comprises one or more mantle layers comprising one or more metals, ceramic, or composite materials. Composite materials include silicone carbide...
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JP4163835B2 |
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JP4155604B2 |
A unique golf ball and related methods of manufacturing are disclosed in which the golf ball comprises one or more metal mantle layers and a cellular or liquid core component. The golf ball may also comprise an optional polymeric spheric...
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JP4157023B2 |
The present invention relates to a method for the manufacture of three-dimensional parts of a ball, in particular of a soccer ball with the steps of providing an outer material (20) and at least one backing material (10), the three-dimen...
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JP4146904B2 |
A unique golf ball and related methods of manufacturing are disclosed in which the golf ball comprises one or more metal mantle layers that define a hollow interior within the ball. The golf ball may also comprise an optional polymeric h...
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JP4149236B2 |
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JP4143778B2 |
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JP4136035B2 |
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JP4130533B2 |
The present invention is directed to a retractable sleeve for a golf ball injection mold for forming a golf ball cover or intermediate layers of a golf ball. The retractable sleeves engage with a golf ball core to securely position the c...
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JP4120731B2 |
In a golf ball having a plurality of dimples in its surface, the dimples as a whole are randomly distributed on at least a hemispherical surface. The golf ball has improved aerodynamic isotropy.
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JP4120732B2 |
A golf ball mold including a spherical cavity having a large number of projections for shaping dimples on the inner wall surface with a parting surface provided at a position substantially corresponding to an equator of the cavity, provi...
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JP4117428B2 |
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JP4116408B2 |
Golf ball cover and intermediate layers incorporate specified triblock copolymers, a base polymer, and also a polymeric modifier that incorporates an impact modifier, a copolymer or terpolymer having specified functional groups, or mixtu...
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JP4112327B2 |
A golf ball is provided which contains a core and a cover. In the forming of the cover, two half shells made from a thermoplastic resinous composition are used to cover the core, the composite is put in a spherical mold, then, the mold i...
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JP4110425B2 |
The present invention provides a multi-piece golf ball comprising a core 3, a first intermediate layer 5, a second intermediate layer 7, and a cover 9, wherein the first intermediate layer 5 comprises a plurality of ribs 51 formed on the...
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JP4109969B2 |
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JP4105642B2 |
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JP2008136872A |
To generally provide golf balls, and more specifically, golf balls with at least one component, e.g., golf ball covers, cores, and intermediate layers, formed from engineering thermoplastic vulcanizates (ETPV) that have improved heat res...
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JP4101581B2 |
Golf ball 1 has a core 2 and a cover 3. The cover 3 is formed from a polymer composition. A coefficient of loss at -20° C., T(-20), and a complex elastic modulus at -20° C., E(-20) Kgf/cm<2>, of this polymer composition satisfy the fol...
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JP4105009B2 |
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JP2008132300A |
To provide a method of manufacturing a soft tennis ball with an integral inflation valve.According to this manufacturing method, the soft tennis ball is formed by bonding two rubber semicircular bodies, the inflation valve is integrally ...
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JP4098066B2 |
A multi-piece golf ball with improved carry without sacrificing properties like spin performance, durability, coefficient of restitution, and the feel when the ball is hit, the golf ball including a core, an intermediate layer surroundin...
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JP4098034B2 |
A golf ball which comprises a spherical core and a cover, wherein the cover has a nominal thickness of 0.1 mm to 1.2 mm. Dimples are formed on the surface of the cover and concave portions are formed on the surface of the core, the posit...
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JP4084064B2 |
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JP2008093879A |
To provide a golf ball molding apparatus capable of forming a coating layer in more uniform thickness by minimizing shift and accurately performing mold matching at the time of mold clamping because a mold matching mechanism composed of ...
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JP2008093878A |
To provide a golf ball molding apparatus capable of easily regulating the temperature of a mold, uniformizing the temperature distribution of the mold, preventing mold dragging and eliminating the core shift of a work to shorten a cycle ...
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JP4081087B2 |
The ball for a ball game of the invention includes a fabric layer (1) having a spherical 12-hedron where twelve right pentagonal fabric pieces (2) arc sewn together. The marginal edges of the fabric piece being folded by 90 degrees, and ...
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JP4079447B2 |
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JP4076448B2 |
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JP2008510592A |
The present invention describes an injection molding process for manufacturing golf balls using thermoplastic materials. The injection mold is provided with a heating source and one or more valve gates. The heating source maintains the t...
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JP4073043B2 |
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JP4069376B2 |
A golf ball comprising a core and a cover is manufactured by the steps of (A) enclosing the core with a thermoplastic resin and (B) tailoring the thermoplastic resin layer by applying heat and pressure thereto, for adjusting the thicknes...
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JP3140519U |
To provide a golf ball liner and a clamp thereof. A golf ball liner 2 and a clamp 1 thereof quickly open a clamp, place a golf ball G in the liner, and have convenience of use. The clamp is pin-bonded to the pin joint 15 of the liner, ha...
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JP4066001B2 |
A golf ball comprising a spherical core ( 1 ) and a cover ( 3 ) covering the spherical core ( 1 ), wherein the core ( 1 ) is provided with grooves ( 5 ) along three great circles drawn on the surface of the core ( 1 ) so as to intersect ...
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JP4061435B2 |
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JP4061436B2 |
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