Abstract: In a golf ball including dimples having comma shapes, the dimples are arranged such that one comma shaped dimple replaces a circular dimple, two or more comma shaped dimples of different sizes replace one circular dimple, comma shaped dimples having different shapes are arranged in a mixed type arrangement, circular dimples and comma shaped dimples are arranged in a mixed type arrangement, or a discontinuous annular dimple is added to the comma shaped dimples. Thus, a disadvantage of a large circular dimple may be removed and simultaneously a golf ball with stable flight capability and a long flight distance may be provided.

Abstract: A golf ball in which a surface of a sphere is divided into a plurality of spherical polyhedrons and dimples are formed in each divided surface. A discontinuous annular dimple is formed over two or more of the dimples. The discontinuous annular dimple is substantially formed in a ring shape and a concave indented from a surface of the golf ball and a land portion formed as the same plane as the surface of the golf ball are alternately arranged in a direction along a circumference of a ring.

Abstract: Provided is a golf ball having a surface divided by small circles. A surface of a sphere is divided by small circles to generate spherical polyhedrons in order to arrange dimples in the spherical polygons, instead of arranging dimples in spherical polyhedrons that are generated by dividing the surface of the sphere by great circles. According to one or more exemplary embodiments, a land surface of the golf ball, which is generated by arranging the dimples in the spherical polyhedrons, has a dimple area ratio higher than that of a spherical truncated icosahedron of which a surface is divided by great circles on which dimples are arranged. Therefore, a flight distance of the golf ball increases.

Abstract: Disclosed is a golf ball in which a plurality of dimples is arranged. The golf ball includes first dimples having the largest diameter and second dimples having the second largest diameter arranged on the surface of the golf ball divided into a spherical rhombic dodecahedron, the first dimples are arranged in an LF region of a radius of ?/10 radian ±10% around a first apex of the spherical rhombic dodecahedron, shared jointly by 4 spherical rhombi, and the second dimples are arranged in an LS region of a radius of ?/20 radian ±10% around a second apex of the spherical rhombic dodecahedron, shared jointly by 3 spherical rhombi. Thereby, air flow and pressure drag are uniformized in all of spherical polygons and thus, a carry distance of the golf ball may be improved.

Abstract: In a golf ball having a surface divided by triangular concave sectors, an area of a surface of a sphere is divided into a plurality of areas forming spherical polyhedron and a plurality of dimples are formed for each of the plurality of areas. A triangular concave sector is formed by continuously forming a plurality of triangular concave on each arc along great circles dividing the surface of the sphere into the plurality of areas. A planar shape of each of the plurality of triangular concave is a triangle and the bases of the triangular concaves are arranged on the arc along the great circles. Peaks of adjacent triangular concaves are located at opposite sides with respect to the arc along the great circles.

Abstract: In a golf ball including dimples having coma shapes, the dimples are arranged such that one comma shaped dimple replaces a circular dimple, two or more comma shaped dimples of different sizes replace one circular dimple, comma shaped dimples having different shapes are arranged in a mixed type arrangement, circular dimples and comma shaped dimples are arranged in a mixed type arrangement, or a discontinuous annular dimple is added to the comma shaped dimples. Thus, a disadvantage of a large circular dimple may be removed and simultaneously a golf ball with stable flight capability and a long flight distance may be provided.

Abstract: In a golf ball having a surface divided by triangular concave sectors, an area of a surface of a sphere is divided into a plurality of areas forming spherical polyhedron and a plurality of dimples are formed for each of the plurality of areas. A triangular concave sector is formed by continuously forming a plurality of triangular concaves on each arc along great circles dividing the surface of the sphere into the plurality of areas. A planar shape of each of the plurality of triangular concaves is a triangle and the bases of the triangular concaves are arranged on the arc along the great circles. Peaks of adjacent triangular concaves are located at opposite sides with respect to the arc along the great circles.

Abstract: Disclosed is a highly functional multi-layered golf ball which prevents interlayer separation of a dual core, transfers force to an inner core without loss when hit by a golf club to provide strong repulsive elasticity, is not easily broken due to reinforcement of various physical properties and exhibits a suitable spin force and excellent hitting feel. The multi-layered golf ball includes a core and a cover covering the core, wherein the core includes a triple core including an inner core, an outer layer having a lower hardness than that of the inner core, and a binder layer bonding the inner core to the outer layer, the binder layer having a greater hardness than that of the outer layer.

Abstract: Disclosed is a method of manufacturing a golf ball having a multilayer structure. The method uses a forming apparatus including an upper mold, a lower mold, and an intermediate mold. The upper mold and the lower mold include a plurality of hemispheric cavities, respectively. The intermediate mold includes a plurality of protrusions having smaller diameters than those of the cavities, on a top and a bottom to correspond to the cavities.

Abstract: Disclosed are manufacturing of a golf ball. A golf ball has a plurality of circular dimples in its spherical outer surface, dividing into the faces of a spherical polyhedron by a plurality of division lines, wherein border lines are formed at the position of ±1˜2 latitudinal degrees to the division lines, the circular dimples are arranged by using the border lines as an occupation limit line of the circular dimples positioned opposite to the division lines, and the golf ball has no dimple on the pole in the center of the spherical polyhedron is provided, thereby increasing the performance such as a carry distance by raising the proper amount of area ratio of dimples, obtaining the uniformity thickness cover molding without the inferior product due to the balanced gates with uniform size.

Abstract: A golf ball has a strong durability against the hit by a golf club by preventing the degradation caused by ozone, and has the core having a good elasticity. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the core compositions including a base rubber, a co-crosslinking agent, a filler, an antioxidant, a degradation preventing agent, and a cross-linking reaction initiator, wherein the degradation preventing agent which includes a substituted or unsubstituted paraphenylenediamine derivative represented by Formula 1. And, the core composition maybe comprises a micro crystalline wax with the ozone degradation preventing agent additionally, that has a strong durability against the heat, rubbing and ozone.

Abstract: Disclosed is a golf ball in which a plurality of dimples is arranged. The golf ball includes first dimples having the largest diameter and second dimples having the second largest diameter arranged on the surface of the golf ball divided into a spherical rhombic dodecahedron, the first dimples are arranged in an LF region of a radius of ?/10 radian±10% around a first apex of the spherical rhombic dodecahedron, shared jointly by 4 spherical rhomi, and the second dimples are arranged in an LS region of a radius of ?/20 radian±10% around a second apex of the spherical rhombic dodecahedron, shared jointly by 3 spherical rhombi. Thereby, air flow and pressure drag are uniformized in all of spherical polygons and thus, a carry distance of the golf ball may be improved.

Abstract: A golf ball has a strong durability against the hit by a golf club by preventing the degradation caused by ozone, and has the core having a good elasticity. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the core compositions including a base rubber, a co-crosslinking agent, a filler, an antioxidant, a degradation preventing agent, and a cross-linking reaction initiator, wherein the degradation preventing agent which includes a substituted or unsubstituted paraphenylenediamine derivative represented by Formula 1. And, the core composition maybe comprises a micro crystalline wax with the ozone degradation preventing agent additionally, that has a strong durability against the heat, rubbing and ozone.

Abstract: Provided is a spherical polyhedron division structure of a golf ball where dimples are arranged to have a well-defined symmetry and a dimple pattern. In the spherical polyhedron division structure, wherein an arbitrary point on a surface of a spherical body constituting a golf ball is defined as a pole, a great circle dividing the spherical body into a northern hemisphere and a southern hemisphere with respect to the pole as a reference point is defined as an equator, the surface of the spherical body is divided into six areas formed by segments connecting the pole and points obtained by dividing the equator in units of 60°, each area is divided into spherical polygons formed by four spherical rectangles and two spherical triangles having sides with different lengths, and the spherical polygons arranged in different adjacent areas are symmetric with each other.

Abstract: Provided is a golf ball having an improved structure of a plurality of circular dimples formed on a surface of the golf ball to improve flight stability and increase a flying distance. With a golf ball having a plurality of circular dimples on a surface thereof, a plurality of concaves, each of which has a shape of an arc concentric with the circular dimple, are formed at a predetermined interval along a circumference of the entire or a portion of the circular dimple.

Abstract: Disclosed is a method of manufacturing a golf ball having a multilayer structure. The method uses a forming apparatus including an upper mold, a lower mold, and an intermediate mold. The upper mold and the lower mold include a plurality of hemispheric cavities, respectively. The intermediate mold includes a plurality of protrusions having smaller diameters than those of the cavities, on a top and a bottom to correspond to the cavities.